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[INFO] [stderr] Downloaded unicode-segmentation v1.3.0 [INFO] [stderr] Downloaded atty v0.2.11 [INFO] [stderr] Downloaded cfg-if v0.1.9 [INFO] [stderr] Downloaded utf8-ranges v1.0.3 [INFO] [stderr] Downloaded wincolor v1.0.1 [INFO] [stderr] Downloaded quote v0.6.12 [INFO] [stderr] Downloaded structopt v0.2.16 [INFO] [stderr] Downloaded nodrop v0.1.13 [INFO] [stderr] Downloaded smallvec v0.6.10 [INFO] [stderr] Downloaded arrayvec v0.4.10 [INFO] [stderr] Downloaded log v0.4.6 [INFO] [stderr] Downloaded aho-corasick v0.7.4 [INFO] [stderr] Downloaded redox_syscall v0.1.54 [INFO] [stderr] Downloaded crossbeam-epoch v0.7.1 [INFO] [stderr] Downloaded crossbeam-channel v0.3.8 [INFO] [stderr] Downloaded crossbeam-queue v0.1.2 [INFO] [stderr] Downloaded syn v0.15.36 [INFO] [stderr] Downloaded crossbeam-utils v0.6.5 [INFO] [stderr] Downloaded crossbeam v0.7.1 [INFO] [stderr] Downloaded humantime v1.2.0 [INFO] [stderr] Downloaded memchr v2.2.0 [INFO] [stderr] Downloaded ucd-util v0.1.3 [INFO] 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"/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 8d5a5ff2d77c9c0e2931354fe9f0a38264cfec89037e6c6a311217a5bb3e9298 [INFO] running `Command { std: "docker" "start" "-a" "8d5a5ff2d77c9c0e2931354fe9f0a38264cfec89037e6c6a311217a5bb3e9298", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8d5a5ff2d77c9c0e2931354fe9f0a38264cfec89037e6c6a311217a5bb3e9298", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8d5a5ff2d77c9c0e2931354fe9f0a38264cfec89037e6c6a311217a5bb3e9298", kill_on_drop: false }` [INFO] [stdout] 8d5a5ff2d77c9c0e2931354fe9f0a38264cfec89037e6c6a311217a5bb3e9298 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8abbdd971e0617af6c0841efa8466012e057905bbec3871e1c649f2188ea4125 [INFO] running `Command { std: "docker" "start" "-a" "8abbdd971e0617af6c0841efa8466012e057905bbec3871e1c649f2188ea4125", kill_on_drop: false }` [INFO] [stderr] Checking lazy_static v1.3.0 [INFO] [stderr] Checking cfg-if v0.1.9 [INFO] [stderr] Compiling libc v0.2.58 [INFO] [stderr] Compiling arrayvec v0.4.10 [INFO] [stderr] Compiling memchr v2.2.0 [INFO] [stderr] Compiling bitflags v1.1.0 [INFO] [stderr] Checking nodrop v0.1.13 [INFO] [stderr] Compiling syn v0.15.36 [INFO] [stderr] Compiling regex v1.1.7 [INFO] [stderr] Checking memoffset v0.2.1 [INFO] [stderr] Compiling unicode-segmentation v1.3.0 [INFO] [stderr] Checking ucd-util v0.1.3 [INFO] [stderr] Checking unicode-width v0.1.5 [INFO] [stderr] Checking utf8-ranges v1.0.3 [INFO] [stderr] Checking vec_map v0.8.1 [INFO] [stderr] Compiling quote v0.6.12 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Checking crossbeam-utils v0.6.5 [INFO] [stderr] Checking smallvec v0.6.10 [INFO] [stderr] Checking quick-error v1.2.2 [INFO] [stderr] Checking regex-syntax v0.6.7 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking humantime v1.2.0 [INFO] [stderr] Checking log v0.4.6 [INFO] [stderr] Checking termcolor v1.0.5 [INFO] [stderr] Checking crossbeam-channel v0.3.8 [INFO] [stderr] Checking crossbeam-queue v0.1.2 [INFO] [stderr] Compiling heck v0.3.1 [INFO] [stderr] Checking crossbeam-epoch v0.7.1 [INFO] [stderr] Checking aho-corasick v0.7.4 [INFO] [stderr] Checking atty v0.2.11 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking crossbeam-deque v0.7.1 [INFO] [stderr] Checking crossbeam v0.7.1 [INFO] [stderr] Compiling structopt-derive v0.2.16 [INFO] [stderr] Checking env_logger v0.6.2 [INFO] [stderr] Checking structopt v0.2.16 [INFO] [stderr] Checking rust-core-utils v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `enable_escape` is never read [INFO] [stdout] --> src/bin/echo.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 7 | struct Opt { [INFO] [stdout] | --- field in this struct [INFO] [stdout] ... [INFO] [stdout] 14 | enable_escape: bool, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Opt` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/bin/util/file.rs:18:18 [INFO] [stdout] | [INFO] [stdout] 18 | bufread: Box, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 18 | bufread: Box, [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/bin/util/file.rs:18:18 [INFO] [stdout] | [INFO] [stdout] 18 | bufread: Box, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 18 | bufread: Box, [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `enable_escape` is never read [INFO] [stdout] --> src/bin/echo.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 7 | struct Opt { [INFO] [stdout] | --- field in this struct [INFO] [stdout] ... [INFO] [stdout] 14 | enable_escape: bool, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Opt` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/bin/util/file.rs:18:18 [INFO] [stdout] | [INFO] [stdout] 18 | bufread: Box, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 18 | bufread: Box, [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/bin/util/file.rs:18:18 [INFO] [stdout] | [INFO] [stdout] 18 | bufread: Box, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 18 | bufread: Box, [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `from_byte` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:14:17 [INFO] [stdout] | [INFO] [stdout] 14 | let mut from_byte: usize = 0; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `last_bytes` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:15:17 [INFO] [stdout] | [INFO] [stdout] 15 | let mut last_bytes: usize = 0; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `from_line` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:16:17 [INFO] [stdout] | [INFO] [stdout] 16 | let mut from_line: usize = 0; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `last_lines` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:17:17 [INFO] [stdout] | [INFO] [stdout] 17 | let mut last_lines: usize = 0; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `from` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:50:17 [INFO] [stdout] | [INFO] [stdout] 50 | let mut from: usize = 0; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `last` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:51:17 [INFO] [stdout] | [INFO] [stdout] 51 | let mut last: usize = 0; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Write` and `self` [INFO] [stdout] --> src/bin/tail.rs:9:15 [INFO] [stdout] | [INFO] [stdout] 9 | use std::io::{self, Write}; [INFO] [stdout] | ^^^^ ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fmt` [INFO] [stdout] --> src/bin/tail.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | use std::fmt; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Write` and `self` [INFO] [stdout] --> src/bin/tail.rs:9:15 [INFO] [stdout] | [INFO] [stdout] 9 | use std::io::{self, Write}; [INFO] [stdout] | ^^^^ ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fmt` [INFO] [stdout] --> src/bin/tail.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | use std::fmt; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/bin/util/file.rs:18:18 [INFO] [stdout] | [INFO] [stdout] 18 | bufread: Box, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 18 | bufread: Box, [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `walk_buffer_bytes`, `walk_buffer_lines`, `last_bytes`, `last_lines`, `len`, and `buffer_position` are never used [INFO] [stdout] --> src/bin/util/file.rs:106:12 [INFO] [stdout] | [INFO] [stdout] 22 | impl FileDetail { [INFO] [stdout] | --------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 106 | pub fn walk_buffer_bytes(&mut self, bytes: usize) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 115 | pub fn walk_buffer_lines(&mut self, lines: usize) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 123 | pub fn last_bytes(&mut self, bytes: usize) -> (usize, Vec) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 142 | pub fn last_lines(&mut self, lines: usize) -> (usize, Vec) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 163 | pub fn len(&self) -> Result { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 177 | pub fn buffer_position(&self) -> usize { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/bin/util/file.rs:18:18 [INFO] [stdout] | [INFO] [stdout] 18 | bufread: Box, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 18 | bufread: Box, [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `FileReadStrategy` is never used [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:4:10 [INFO] [stdout] | [INFO] [stdout] 4 | pub enum FileReadStrategy { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `FileReadStrategy` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated functions `pick` and `from_last_converter` are never used [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:13:12 [INFO] [stdout] | [INFO] [stdout] 12 | impl FileReadStrategy { [INFO] [stdout] | --------------------- associated functions in this implementation [INFO] [stdout] 13 | pub fn pick(bytes: String, lines: String) -> FileReadStrategy { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 49 | fn from_last_converter(size: String) -> Option<(usize, usize)> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `from_byte` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:14:17 [INFO] [stdout] | [INFO] [stdout] 14 | let mut from_byte: usize = 0; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `last_bytes` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:15:17 [INFO] [stdout] | [INFO] [stdout] 15 | let mut last_bytes: usize = 0; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `from_line` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:16:17 [INFO] [stdout] | [INFO] [stdout] 16 | let mut from_line: usize = 0; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `last_lines` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:17:17 [INFO] [stdout] | [INFO] [stdout] 17 | let mut last_lines: usize = 0; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `from_byte` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:14:17 [INFO] [stdout] | [INFO] [stdout] 14 | let mut from_byte: usize = 0; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `last_bytes` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:15:17 [INFO] [stdout] | [INFO] [stdout] 15 | let mut last_bytes: usize = 0; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `from_line` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:16:17 [INFO] [stdout] | [INFO] [stdout] 16 | let mut from_line: usize = 0; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `last_lines` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:17:17 [INFO] [stdout] | [INFO] [stdout] 17 | let mut last_lines: usize = 0; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `from` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:50:17 [INFO] [stdout] | [INFO] [stdout] 50 | let mut from: usize = 0; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `from` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:50:17 [INFO] [stdout] | [INFO] [stdout] 50 | let mut from: usize = 0; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `last` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:51:17 [INFO] [stdout] | [INFO] [stdout] 51 | let mut last: usize = 0; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `last` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:51:17 [INFO] [stdout] | [INFO] [stdout] 51 | let mut last: usize = 0; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/head.rs:55:9 [INFO] [stdout] | [INFO] [stdout] 55 | writter.write_all(&b.unwrap()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 55 | let _ = writter.write_all(&b.unwrap()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `valid_line` [INFO] [stdout] --> src/bin/cat.rs:137:21 [INFO] [stdout] | [INFO] [stdout] 137 | let mut valid_line = false; [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_valid_line` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `blank_line_count` [INFO] [stdout] --> src/bin/cat.rs:143:30 [INFO] [stdout] | [INFO] [stdout] 143 | let (valid_line, blank_line_count) = valid(line.clone(), blank_line_count, opt.squeeze_blank); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_blank_line_count` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/cat.rs:137:17 [INFO] [stdout] | [INFO] [stdout] 137 | let mut valid_line = false; [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `walk_buffer_bytes`, `walk_buffer_lines`, `last_bytes`, `last_lines`, `len`, and `buffer_position` are never used [INFO] [stdout] --> src/bin/util/file.rs:106:12 [INFO] [stdout] | [INFO] [stdout] 22 | impl FileDetail { [INFO] [stdout] | --------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 106 | pub fn walk_buffer_bytes(&mut self, bytes: usize) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 115 | pub fn walk_buffer_lines(&mut self, lines: usize) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 123 | pub fn last_bytes(&mut self, bytes: usize) -> (usize, Vec) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 142 | pub fn last_lines(&mut self, lines: usize) -> (usize, Vec) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 163 | pub fn len(&self) -> Result { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 177 | pub fn buffer_position(&self) -> usize { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `FileReadStrategy` is never used [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:4:10 [INFO] [stdout] | [INFO] [stdout] 4 | pub enum FileReadStrategy { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `FileReadStrategy` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated functions `pick` and `from_last_converter` are never used [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:13:12 [INFO] [stdout] | [INFO] [stdout] 12 | impl FileReadStrategy { [INFO] [stdout] | --------------------- associated functions in this implementation [INFO] [stdout] 13 | pub fn pick(bytes: String, lines: String) -> FileReadStrategy { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 49 | fn from_last_converter(size: String) -> Option<(usize, usize)> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `number_nonempty` and `ignored` are never read [INFO] [stdout] --> src/bin/cat.rs:21:5 [INFO] [stdout] | [INFO] [stdout] 14 | struct Opt { [INFO] [stdout] | --- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 21 | number_nonempty: bool, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 49 | ignored: bool, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Opt` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `walk_buffer_bytes`, `walk_buffer_lines`, `last_bytes`, `last_lines`, `len`, and `buffer_position` are never used [INFO] [stdout] --> src/bin/util/file.rs:106:12 [INFO] [stdout] | [INFO] [stdout] 22 | impl FileDetail { [INFO] [stdout] | --------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 106 | pub fn walk_buffer_bytes(&mut self, bytes: usize) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 115 | pub fn walk_buffer_lines(&mut self, lines: usize) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 123 | pub fn last_bytes(&mut self, bytes: usize) -> (usize, Vec) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 142 | pub fn last_lines(&mut self, lines: usize) -> (usize, Vec) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 163 | pub fn len(&self) -> Result { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 177 | pub fn buffer_position(&self) -> usize { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `FileReadStrategy` is never used [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:4:10 [INFO] [stdout] | [INFO] [stdout] 4 | pub enum FileReadStrategy { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `FileReadStrategy` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated functions `pick` and `from_last_converter` are never used [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:13:12 [INFO] [stdout] | [INFO] [stdout] 12 | impl FileReadStrategy { [INFO] [stdout] | --------------------- associated functions in this implementation [INFO] [stdout] 13 | pub fn pick(bytes: String, lines: String) -> FileReadStrategy { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 49 | fn from_last_converter(size: String) -> Option<(usize, usize)> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/head.rs:55:9 [INFO] [stdout] | [INFO] [stdout] 55 | writter.write_all(&b.unwrap()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 55 | let _ = writter.write_all(&b.unwrap()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/cat.rs:153:13 [INFO] [stdout] | [INFO] [stdout] 153 | / match f.read_chunk(size) { [INFO] [stdout] 154 | | Some(b) => writter.write_all(&b), [INFO] [stdout] 155 | | _ => Ok(()), [INFO] [stdout] 156 | | }; [INFO] [stdout] | |_____________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 153 | let _ = match f.read_chunk(size) { [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 15 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `from_byte` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:14:17 [INFO] [stdout] | [INFO] [stdout] 14 | let mut from_byte: usize = 0; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `last_bytes` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:15:17 [INFO] [stdout] | [INFO] [stdout] 15 | let mut last_bytes: usize = 0; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `from_line` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:16:17 [INFO] [stdout] | [INFO] [stdout] 16 | let mut from_line: usize = 0; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `last_lines` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:17:17 [INFO] [stdout] | [INFO] [stdout] 17 | let mut last_lines: usize = 0; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `from` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:50:17 [INFO] [stdout] | [INFO] [stdout] 50 | let mut from: usize = 0; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `last` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:51:17 [INFO] [stdout] | [INFO] [stdout] 51 | let mut last: usize = 0; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `valid_line` [INFO] [stdout] --> src/bin/cat.rs:137:21 [INFO] [stdout] | [INFO] [stdout] 137 | let mut valid_line = false; [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_valid_line` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `blank_line_count` [INFO] [stdout] --> src/bin/cat.rs:143:30 [INFO] [stdout] | [INFO] [stdout] 143 | let (valid_line, blank_line_count) = valid(line.clone(), blank_line_count, opt.squeeze_blank); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_blank_line_count` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/cat.rs:137:17 [INFO] [stdout] | [INFO] [stdout] 137 | let mut valid_line = false; [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `number_nonempty` and `ignored` are never read [INFO] [stdout] --> src/bin/cat.rs:21:5 [INFO] [stdout] | [INFO] [stdout] 14 | struct Opt { [INFO] [stdout] | --- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 21 | number_nonempty: bool, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 49 | ignored: bool, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Opt` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `walk_buffer_bytes`, `walk_buffer_lines`, `last_bytes`, `last_lines`, `len`, and `buffer_position` are never used [INFO] [stdout] --> src/bin/util/file.rs:106:12 [INFO] [stdout] | [INFO] [stdout] 22 | impl FileDetail { [INFO] [stdout] | --------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 106 | pub fn walk_buffer_bytes(&mut self, bytes: usize) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 115 | pub fn walk_buffer_lines(&mut self, lines: usize) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 123 | pub fn last_bytes(&mut self, bytes: usize) -> (usize, Vec) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 142 | pub fn last_lines(&mut self, lines: usize) -> (usize, Vec) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 163 | pub fn len(&self) -> Result { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 177 | pub fn buffer_position(&self) -> usize { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `FileReadStrategy` is never used [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:4:10 [INFO] [stdout] | [INFO] [stdout] 4 | pub enum FileReadStrategy { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `FileReadStrategy` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated functions `pick` and `from_last_converter` are never used [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:13:12 [INFO] [stdout] | [INFO] [stdout] 12 | impl FileReadStrategy { [INFO] [stdout] | --------------------- associated functions in this implementation [INFO] [stdout] 13 | pub fn pick(bytes: String, lines: String) -> FileReadStrategy { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 49 | fn from_last_converter(size: String) -> Option<(usize, usize)> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/cat.rs:153:13 [INFO] [stdout] | [INFO] [stdout] 153 | / match f.read_chunk(size) { [INFO] [stdout] 154 | | Some(b) => writter.write_all(&b), [INFO] [stdout] 155 | | _ => Ok(()), [INFO] [stdout] 156 | | }; [INFO] [stdout] | |_____________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 153 | let _ = match f.read_chunk(size) { [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 15 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `from_byte` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:14:17 [INFO] [stdout] | [INFO] [stdout] 14 | let mut from_byte: usize = 0; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `last_bytes` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:15:17 [INFO] [stdout] | [INFO] [stdout] 15 | let mut last_bytes: usize = 0; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `from_line` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:16:17 [INFO] [stdout] | [INFO] [stdout] 16 | let mut from_line: usize = 0; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `last_lines` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:17:17 [INFO] [stdout] | [INFO] [stdout] 17 | let mut last_lines: usize = 0; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `from` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:50:17 [INFO] [stdout] | [INFO] [stdout] 50 | let mut from: usize = 0; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `last` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:51:17 [INFO] [stdout] | [INFO] [stdout] 51 | let mut last: usize = 0; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `last_read` is never read [INFO] [stdout] --> src/bin/tail.rs:183:17 [INFO] [stdout] | [INFO] [stdout] 183 | let mut last_read = 0; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `Nome` [INFO] [stdout] --> src/bin/tail.rs:196:29 [INFO] [stdout] | [INFO] [stdout] 196 | ... Nome => { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_Nome` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `Nome` [INFO] [stdout] --> src/bin/tail.rs:241:29 [INFO] [stdout] | [INFO] [stdout] 241 | ... Nome => { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_Nome` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `from_byte` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:14:17 [INFO] [stdout] | [INFO] [stdout] 14 | let mut from_byte: usize = 0; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `last_bytes` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:15:17 [INFO] [stdout] | [INFO] [stdout] 15 | let mut last_bytes: usize = 0; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `from_line` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:16:17 [INFO] [stdout] | [INFO] [stdout] 16 | let mut from_line: usize = 0; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `last_lines` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:17:17 [INFO] [stdout] | [INFO] [stdout] 17 | let mut last_lines: usize = 0; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `from` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:50:17 [INFO] [stdout] | [INFO] [stdout] 50 | let mut from: usize = 0; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `last` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:51:17 [INFO] [stdout] | [INFO] [stdout] 51 | let mut last: usize = 0; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `line_number` [INFO] [stdout] --> src/bin/tail.rs:296:13 [INFO] [stdout] | [INFO] [stdout] 296 | let mut line_number = 0; [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_line_number` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `last_read` is never read [INFO] [stdout] --> src/bin/tail.rs:183:17 [INFO] [stdout] | [INFO] [stdout] 183 | let mut last_read = 0; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `Nome` [INFO] [stdout] --> src/bin/tail.rs:196:29 [INFO] [stdout] | [INFO] [stdout] 196 | ... Nome => { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_Nome` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `Nome` [INFO] [stdout] --> src/bin/tail.rs:241:29 [INFO] [stdout] | [INFO] [stdout] 241 | ... Nome => { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_Nome` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/tail.rs:296:9 [INFO] [stdout] | [INFO] [stdout] 296 | let mut line_number = 0; [INFO] [stdout] | ----^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `max_unchanged_stats`, `pid`, `quiet`, and `verbose` are never read [INFO] [stdout] --> src/bin/tail.rs:100:9 [INFO] [stdout] | [INFO] [stdout] 97 | struct TailOption { [INFO] [stdout] | ---------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 100 | pub max_unchanged_stats: usize, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] 101 | pub pid: usize, [INFO] [stdout] | ^^^ [INFO] [stdout] 102 | pub quiet: bool, [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 105 | pub verbose: bool, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `TailOption` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `is_text`, `walk_buffer_bytes`, and `buffer_position` are never used [INFO] [stdout] --> src/bin/util/file.rs:102:12 [INFO] [stdout] | [INFO] [stdout] 22 | impl FileDetail { [INFO] [stdout] | --------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 102 | pub fn is_text(&self) -> bool { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 106 | pub fn walk_buffer_bytes(&mut self, bytes: usize) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 177 | pub fn buffer_position(&self) -> usize { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/tail.rs:149:9 [INFO] [stdout] | [INFO] [stdout] 149 | to.output_channel.send(Line{ from_file: None, content: content }); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 149 | let _ = to.output_channel.send(Line{ from_file: None, content: content }); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/tail.rs:171:21 [INFO] [stdout] | [INFO] [stdout] 171 | to.output_channel.send(Line{ from_file: None, content: content }); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 171 | let _ = to.output_channel.send(Line{ from_file: None, content: content }); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/tail.rs:194:33 [INFO] [stdout] | [INFO] [stdout] 194 | ... to.output_channel.send(Line{ from_file: Some(to.file.clone()), content: content }); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 194 | let _ = to.output_channel.send(Line{ from_file: Some(to.file.clone()), content: content }); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `Nome` should have a snake case name [INFO] [stdout] --> src/bin/tail.rs:196:29 [INFO] [stdout] | [INFO] [stdout] 196 | ... Nome => { [INFO] [stdout] | ^^^^ help: convert the identifier to snake case: `nome` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/tail.rs:212:21 [INFO] [stdout] | [INFO] [stdout] 212 | to.output_channel.send(Line{ from_file: Some(to.file.clone()), content: content }); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 212 | let _ = to.output_channel.send(Line{ from_file: Some(to.file.clone()), content: content }); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/tail.rs:222:21 [INFO] [stdout] | [INFO] [stdout] 222 | to.output_channel.send(Line{ from_file: Some(to.file.clone()), content: content }); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 222 | let _ = to.output_channel.send(Line{ from_file: Some(to.file.clone()), content: content }); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/tail.rs:239:33 [INFO] [stdout] | [INFO] [stdout] 239 | ... to.output_channel.send(Line{ from_file: Some(to.file.clone()), content: b }); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 239 | let _ = to.output_channel.send(Line{ from_file: Some(to.file.clone()), content: b }); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `Nome` should have a snake case name [INFO] [stdout] --> src/bin/tail.rs:241:29 [INFO] [stdout] | [INFO] [stdout] 241 | ... Nome => { [INFO] [stdout] | ^^^^ help: convert the identifier to snake case: `nome` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/tail.rs:345:9 [INFO] [stdout] | [INFO] [stdout] 345 | t.join(); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 345 | let _ = t.join(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/tail.rs:348:5 [INFO] [stdout] | [INFO] [stdout] 348 | close_tx.send(true); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 348 | let _ = close_tx.send(true); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/tail.rs:349:5 [INFO] [stdout] | [INFO] [stdout] 349 | output_thread.join(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 349 | let _ = output_thread.join(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `line_number` [INFO] [stdout] --> src/bin/tail.rs:296:13 [INFO] [stdout] | [INFO] [stdout] 296 | let mut line_number = 0; [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_line_number` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 27 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/tail.rs:296:9 [INFO] [stdout] | [INFO] [stdout] 296 | let mut line_number = 0; [INFO] [stdout] | ----^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `max_unchanged_stats`, `pid`, `quiet`, and `verbose` are never read [INFO] [stdout] --> src/bin/tail.rs:100:9 [INFO] [stdout] | [INFO] [stdout] 97 | struct TailOption { [INFO] [stdout] | ---------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 100 | pub max_unchanged_stats: usize, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] 101 | pub pid: usize, [INFO] [stdout] | ^^^ [INFO] [stdout] 102 | pub quiet: bool, [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 105 | pub verbose: bool, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `TailOption` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `is_text`, `walk_buffer_bytes`, and `buffer_position` are never used [INFO] [stdout] --> src/bin/util/file.rs:102:12 [INFO] [stdout] | [INFO] [stdout] 22 | impl FileDetail { [INFO] [stdout] | --------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 102 | pub fn is_text(&self) -> bool { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 106 | pub fn walk_buffer_bytes(&mut self, bytes: usize) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 177 | pub fn buffer_position(&self) -> usize { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/tail.rs:149:9 [INFO] [stdout] | [INFO] [stdout] 149 | to.output_channel.send(Line{ from_file: None, content: content }); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 149 | let _ = to.output_channel.send(Line{ from_file: None, content: content }); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/tail.rs:171:21 [INFO] [stdout] | [INFO] [stdout] 171 | to.output_channel.send(Line{ from_file: None, content: content }); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 171 | let _ = to.output_channel.send(Line{ from_file: None, content: content }); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/tail.rs:194:33 [INFO] [stdout] | [INFO] [stdout] 194 | ... to.output_channel.send(Line{ from_file: Some(to.file.clone()), content: content }); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 194 | let _ = to.output_channel.send(Line{ from_file: Some(to.file.clone()), content: content }); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `Nome` should have a snake case name [INFO] [stdout] --> src/bin/tail.rs:196:29 [INFO] [stdout] | [INFO] [stdout] 196 | ... Nome => { [INFO] [stdout] | ^^^^ help: convert the identifier to snake case: `nome` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/tail.rs:212:21 [INFO] [stdout] | [INFO] [stdout] 212 | to.output_channel.send(Line{ from_file: Some(to.file.clone()), content: content }); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 212 | let _ = to.output_channel.send(Line{ from_file: Some(to.file.clone()), content: content }); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/tail.rs:222:21 [INFO] [stdout] | [INFO] [stdout] 222 | to.output_channel.send(Line{ from_file: Some(to.file.clone()), content: content }); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 222 | let _ = to.output_channel.send(Line{ from_file: Some(to.file.clone()), content: content }); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/tail.rs:239:33 [INFO] [stdout] | [INFO] [stdout] 239 | ... to.output_channel.send(Line{ from_file: Some(to.file.clone()), content: b }); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 239 | let _ = to.output_channel.send(Line{ from_file: Some(to.file.clone()), content: b }); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `Nome` should have a snake case name [INFO] [stdout] --> src/bin/tail.rs:241:29 [INFO] [stdout] | [INFO] [stdout] 241 | ... Nome => { [INFO] [stdout] | ^^^^ help: convert the identifier to snake case: `nome` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/tail.rs:345:9 [INFO] [stdout] | [INFO] [stdout] 345 | t.join(); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 345 | let _ = t.join(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/tail.rs:348:5 [INFO] [stdout] | [INFO] [stdout] 348 | close_tx.send(true); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 348 | let _ = close_tx.send(true); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/tail.rs:349:5 [INFO] [stdout] | [INFO] [stdout] 349 | output_thread.join(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 349 | let _ = output_thread.join(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 27 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.32s [INFO] running `Command { std: "docker" "inspect" "8abbdd971e0617af6c0841efa8466012e057905bbec3871e1c649f2188ea4125", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8abbdd971e0617af6c0841efa8466012e057905bbec3871e1c649f2188ea4125", kill_on_drop: false }` [INFO] [stdout] 8abbdd971e0617af6c0841efa8466012e057905bbec3871e1c649f2188ea4125 [INFO] checking quirinux/rust-core-utils against try#f9935d29d867449445ee008640ccca1bf1ae0889+rustflags=-Dtail_expr_drop_order for crater-rollup-uwu [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquirinux%2Frust-core-utils" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/quirinux/rust-core-utils on toolchain f9935d29d867449445ee008640ccca1bf1ae0889 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/quirinux/rust-core-utils [INFO] finished tweaking git repo https://github.com/quirinux/rust-core-utils [INFO] tweaked toml for git repo https://github.com/quirinux/rust-core-utils written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/quirinux/rust-core-utils already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 27e66956c2fdc8e3c87f463c97f3e318268863386562692c300c039d8b77339b [INFO] running `Command { std: "docker" "start" "-a" "27e66956c2fdc8e3c87f463c97f3e318268863386562692c300c039d8b77339b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "27e66956c2fdc8e3c87f463c97f3e318268863386562692c300c039d8b77339b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "27e66956c2fdc8e3c87f463c97f3e318268863386562692c300c039d8b77339b", kill_on_drop: false }` [INFO] [stdout] 27e66956c2fdc8e3c87f463c97f3e318268863386562692c300c039d8b77339b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dtail_expr_drop_order" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9a5f76050590d3620385c795a7febb0e876c334fd8430411cdbf64aa4667ed0c [INFO] running `Command { std: "docker" "start" "-a" "9a5f76050590d3620385c795a7febb0e876c334fd8430411cdbf64aa4667ed0c", kill_on_drop: false }` [INFO] [stderr] Checking lazy_static v1.3.0 [INFO] [stderr] Checking cfg-if v0.1.9 [INFO] [stderr] Compiling libc v0.2.58 [INFO] [stderr] Compiling arrayvec v0.4.10 [INFO] [stderr] Compiling memchr v2.2.0 [INFO] [stderr] Checking nodrop v0.1.13 [INFO] [stderr] Compiling bitflags v1.1.0 [INFO] [stderr] Compiling syn v0.15.36 [INFO] [stderr] Compiling unicode-segmentation v1.3.0 [INFO] [stderr] Compiling regex v1.1.7 [INFO] [stderr] Checking ucd-util v0.1.3 [INFO] [stderr] Checking unicode-width v0.1.5 [INFO] [stderr] Checking memoffset v0.2.1 [INFO] [stderr] Checking vec_map v0.8.1 [INFO] [stderr] Checking quick-error v1.2.2 [INFO] [stderr] Compiling quote v0.6.12 [INFO] [stderr] Checking utf8-ranges v1.0.3 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking crossbeam-utils v0.6.5 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking regex-syntax v0.6.7 [INFO] [stderr] Checking smallvec v0.6.10 [INFO] [stderr] Checking humantime v1.2.0 [INFO] [stderr] Checking log v0.4.6 [INFO] [stderr] Checking termcolor v1.0.5 [INFO] [stderr] Compiling heck v0.3.1 [INFO] [stderr] Checking crossbeam-queue v0.1.2 [INFO] [stderr] Checking crossbeam-channel v0.3.8 [INFO] [stderr] Checking aho-corasick v0.7.4 [INFO] [stderr] Checking crossbeam-epoch v0.7.1 [INFO] [stderr] Checking atty v0.2.11 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking crossbeam-deque v0.7.1 [INFO] [stderr] Checking crossbeam v0.7.1 [INFO] [stderr] Compiling structopt-derive v0.2.16 [INFO] [stderr] Checking env_logger v0.6.2 [INFO] [stderr] Checking structopt v0.2.16 [INFO] [stderr] Checking rust-core-utils v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/bin/util/file.rs:18:18 [INFO] [stdout] | [INFO] [stdout] 18 | bufread: Box, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 18 | bufread: Box, [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/bin/util/file.rs:18:18 [INFO] [stdout] | [INFO] [stdout] 18 | bufread: Box, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 18 | bufread: Box, [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/bin/util/file.rs:18:18 [INFO] [stdout] | [INFO] [stdout] 18 | bufread: Box, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 18 | bufread: Box, [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Write` and `self` [INFO] [stdout] --> src/bin/tail.rs:9:15 [INFO] [stdout] | [INFO] [stdout] 9 | use std::io::{self, Write}; [INFO] [stdout] | ^^^^ ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fmt` [INFO] [stdout] --> src/bin/tail.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | use std::fmt; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/bin/util/file.rs:18:18 [INFO] [stdout] | [INFO] [stdout] 18 | bufread: Box, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 18 | bufread: Box, [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `enable_escape` is never read [INFO] [stdout] --> src/bin/echo.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 7 | struct Opt { [INFO] [stdout] | --- field in this struct [INFO] [stdout] ... [INFO] [stdout] 14 | enable_escape: bool, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Opt` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `enable_escape` is never read [INFO] [stdout] --> src/bin/echo.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 7 | struct Opt { [INFO] [stdout] | --- field in this struct [INFO] [stdout] ... [INFO] [stdout] 14 | enable_escape: bool, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Opt` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/bin/util/file.rs:18:18 [INFO] [stdout] | [INFO] [stdout] 18 | bufread: Box, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 18 | bufread: Box, [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Write` and `self` [INFO] [stdout] --> src/bin/tail.rs:9:15 [INFO] [stdout] | [INFO] [stdout] 9 | use std::io::{self, Write}; [INFO] [stdout] | ^^^^ ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fmt` [INFO] [stdout] --> src/bin/tail.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | use std::fmt; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/bin/util/file.rs:18:18 [INFO] [stdout] | [INFO] [stdout] 18 | bufread: Box, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 18 | bufread: Box, [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `from_byte` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:14:17 [INFO] [stdout] | [INFO] [stdout] 14 | let mut from_byte: usize = 0; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `from_byte` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:14:17 [INFO] [stdout] | [INFO] [stdout] 14 | let mut from_byte: usize = 0; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `last_bytes` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:15:17 [INFO] [stdout] | [INFO] [stdout] 15 | let mut last_bytes: usize = 0; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `last_bytes` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:15:17 [INFO] [stdout] | [INFO] [stdout] 15 | let mut last_bytes: usize = 0; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `from_line` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:16:17 [INFO] [stdout] | [INFO] [stdout] 16 | let mut from_line: usize = 0; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `from_line` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:16:17 [INFO] [stdout] | [INFO] [stdout] 16 | let mut from_line: usize = 0; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `last_lines` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:17:17 [INFO] [stdout] | [INFO] [stdout] 17 | let mut last_lines: usize = 0; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `last_lines` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:17:17 [INFO] [stdout] | [INFO] [stdout] 17 | let mut last_lines: usize = 0; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `from` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:50:17 [INFO] [stdout] | [INFO] [stdout] 50 | let mut from: usize = 0; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `last` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:51:17 [INFO] [stdout] | [INFO] [stdout] 51 | let mut last: usize = 0; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `from` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:50:17 [INFO] [stdout] | [INFO] [stdout] 50 | let mut from: usize = 0; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `last` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:51:17 [INFO] [stdout] | [INFO] [stdout] 51 | let mut last: usize = 0; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `from_byte` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:14:17 [INFO] [stdout] | [INFO] [stdout] 14 | let mut from_byte: usize = 0; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `last_bytes` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:15:17 [INFO] [stdout] | [INFO] [stdout] 15 | let mut last_bytes: usize = 0; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `from_line` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:16:17 [INFO] [stdout] | [INFO] [stdout] 16 | let mut from_line: usize = 0; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `last_lines` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:17:17 [INFO] [stdout] | [INFO] [stdout] 17 | let mut last_lines: usize = 0; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `from` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:50:17 [INFO] [stdout] | [INFO] [stdout] 50 | let mut from: usize = 0; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `last` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:51:17 [INFO] [stdout] | [INFO] [stdout] 51 | let mut last: usize = 0; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `valid_line` [INFO] [stdout] --> src/bin/cat.rs:137:21 [INFO] [stdout] | [INFO] [stdout] 137 | let mut valid_line = false; [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_valid_line` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `blank_line_count` [INFO] [stdout] --> src/bin/cat.rs:143:30 [INFO] [stdout] | [INFO] [stdout] 143 | let (valid_line, blank_line_count) = valid(line.clone(), blank_line_count, opt.squeeze_blank); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_blank_line_count` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `walk_buffer_bytes`, `walk_buffer_lines`, `last_bytes`, `last_lines`, `len`, and `buffer_position` are never used [INFO] [stdout] --> src/bin/util/file.rs:106:12 [INFO] [stdout] | [INFO] [stdout] 22 | impl FileDetail { [INFO] [stdout] | --------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 106 | pub fn walk_buffer_bytes(&mut self, bytes: usize) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 115 | pub fn walk_buffer_lines(&mut self, lines: usize) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 123 | pub fn last_bytes(&mut self, bytes: usize) -> (usize, Vec) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 142 | pub fn last_lines(&mut self, lines: usize) -> (usize, Vec) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 163 | pub fn len(&self) -> Result { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 177 | pub fn buffer_position(&self) -> usize { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `FileReadStrategy` is never used [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:4:10 [INFO] [stdout] | [INFO] [stdout] 4 | pub enum FileReadStrategy { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `FileReadStrategy` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated functions `pick` and `from_last_converter` are never used [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:13:12 [INFO] [stdout] | [INFO] [stdout] 12 | impl FileReadStrategy { [INFO] [stdout] | --------------------- associated functions in this implementation [INFO] [stdout] 13 | pub fn pick(bytes: String, lines: String) -> FileReadStrategy { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 49 | fn from_last_converter(size: String) -> Option<(usize, usize)> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/cat.rs:137:17 [INFO] [stdout] | [INFO] [stdout] 137 | let mut valid_line = false; [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `number_nonempty` and `ignored` are never read [INFO] [stdout] --> src/bin/cat.rs:21:5 [INFO] [stdout] | [INFO] [stdout] 14 | struct Opt { [INFO] [stdout] | --- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 21 | number_nonempty: bool, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 49 | ignored: bool, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Opt` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `walk_buffer_bytes`, `walk_buffer_lines`, `last_bytes`, `last_lines`, `len`, and `buffer_position` are never used [INFO] [stdout] --> src/bin/util/file.rs:106:12 [INFO] [stdout] | [INFO] [stdout] 22 | impl FileDetail { [INFO] [stdout] | --------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 106 | pub fn walk_buffer_bytes(&mut self, bytes: usize) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 115 | pub fn walk_buffer_lines(&mut self, lines: usize) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 123 | pub fn last_bytes(&mut self, bytes: usize) -> (usize, Vec) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 142 | pub fn last_lines(&mut self, lines: usize) -> (usize, Vec) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 163 | pub fn len(&self) -> Result { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 177 | pub fn buffer_position(&self) -> usize { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `FileReadStrategy` is never used [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:4:10 [INFO] [stdout] | [INFO] [stdout] 4 | pub enum FileReadStrategy { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `FileReadStrategy` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated functions `pick` and `from_last_converter` are never used [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:13:12 [INFO] [stdout] | [INFO] [stdout] 12 | impl FileReadStrategy { [INFO] [stdout] | --------------------- associated functions in this implementation [INFO] [stdout] 13 | pub fn pick(bytes: String, lines: String) -> FileReadStrategy { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 49 | fn from_last_converter(size: String) -> Option<(usize, usize)> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `walk_buffer_bytes`, `walk_buffer_lines`, `last_bytes`, `last_lines`, `len`, and `buffer_position` are never used [INFO] [stdout] --> src/bin/util/file.rs:106:12 [INFO] [stdout] | [INFO] [stdout] 22 | impl FileDetail { [INFO] [stdout] | --------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 106 | pub fn walk_buffer_bytes(&mut self, bytes: usize) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 115 | pub fn walk_buffer_lines(&mut self, lines: usize) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 123 | pub fn last_bytes(&mut self, bytes: usize) -> (usize, Vec) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 142 | pub fn last_lines(&mut self, lines: usize) -> (usize, Vec) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 163 | pub fn len(&self) -> Result { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 177 | pub fn buffer_position(&self) -> usize { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `FileReadStrategy` is never used [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:4:10 [INFO] [stdout] | [INFO] [stdout] 4 | pub enum FileReadStrategy { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `FileReadStrategy` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated functions `pick` and `from_last_converter` are never used [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:13:12 [INFO] [stdout] | [INFO] [stdout] 12 | impl FileReadStrategy { [INFO] [stdout] | --------------------- associated functions in this implementation [INFO] [stdout] 13 | pub fn pick(bytes: String, lines: String) -> FileReadStrategy { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 49 | fn from_last_converter(size: String) -> Option<(usize, usize)> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/cat.rs:153:13 [INFO] [stdout] | [INFO] [stdout] 153 | / match f.read_chunk(size) { [INFO] [stdout] 154 | | Some(b) => writter.write_all(&b), [INFO] [stdout] 155 | | _ => Ok(()), [INFO] [stdout] 156 | | }; [INFO] [stdout] | |_____________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 153 | let _ = match f.read_chunk(size) { [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/head.rs:55:9 [INFO] [stdout] | [INFO] [stdout] 55 | writter.write_all(&b.unwrap()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 55 | let _ = writter.write_all(&b.unwrap()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/bin/util/file.rs:51:26 [INFO] [stdout] | [INFO] [stdout] 43 | let mut opened_file = File::open(self.path.clone())?; [INFO] [stdout] | ----------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 51 | Box::new(BufReader::new(opened_file)) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] = note: requested on the command line with `-D tail-expr-drop-order` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `from_byte` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:14:17 [INFO] [stdout] | [INFO] [stdout] 14 | let mut from_byte: usize = 0; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/bin/util/file.rs:51:26 [INFO] [stdout] | [INFO] [stdout] 43 | let mut opened_file = File::open(self.path.clone())?; [INFO] [stdout] | ----------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 51 | Box::new(BufReader::new(opened_file)) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] = note: requested on the command line with `-D tail-expr-drop-order` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `last_bytes` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:15:17 [INFO] [stdout] | [INFO] [stdout] 15 | let mut last_bytes: usize = 0; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `from_line` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:16:17 [INFO] [stdout] | [INFO] [stdout] 16 | let mut from_line: usize = 0; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `last_lines` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:17:17 [INFO] [stdout] | [INFO] [stdout] 17 | let mut last_lines: usize = 0; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/head.rs:55:9 [INFO] [stdout] | [INFO] [stdout] 55 | writter.write_all(&b.unwrap()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 55 | let _ = writter.write_all(&b.unwrap()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/bin/util/file.rs:51:26 [INFO] [stdout] | [INFO] [stdout] 43 | let mut opened_file = File::open(self.path.clone())?; [INFO] [stdout] | ----------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 51 | Box::new(BufReader::new(opened_file)) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] = note: requested on the command line with `-D tail-expr-drop-order` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `from` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:50:17 [INFO] [stdout] | [INFO] [stdout] 50 | let mut from: usize = 0; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `last` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:51:17 [INFO] [stdout] | [INFO] [stdout] 51 | let mut last: usize = 0; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `from_byte` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:14:17 [INFO] [stdout] | [INFO] [stdout] 14 | let mut from_byte: usize = 0; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `last_bytes` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:15:17 [INFO] [stdout] | [INFO] [stdout] 15 | let mut last_bytes: usize = 0; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `from_line` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:16:17 [INFO] [stdout] | [INFO] [stdout] 16 | let mut from_line: usize = 0; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `last_lines` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:17:17 [INFO] [stdout] | [INFO] [stdout] 17 | let mut last_lines: usize = 0; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `from` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:50:17 [INFO] [stdout] | [INFO] [stdout] 50 | let mut from: usize = 0; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `last` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:51:17 [INFO] [stdout] | [INFO] [stdout] 51 | let mut last: usize = 0; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 15 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `last_read` is never read [INFO] [stdout] --> src/bin/tail.rs:183:17 [INFO] [stdout] | [INFO] [stdout] 183 | let mut last_read = 0; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `Nome` [INFO] [stdout] --> src/bin/tail.rs:196:29 [INFO] [stdout] | [INFO] [stdout] 196 | ... Nome => { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_Nome` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `Nome` [INFO] [stdout] --> src/bin/tail.rs:241:29 [INFO] [stdout] | [INFO] [stdout] 241 | ... Nome => { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_Nome` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `valid_line` [INFO] [stdout] --> src/bin/cat.rs:137:21 [INFO] [stdout] | [INFO] [stdout] 137 | let mut valid_line = false; [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_valid_line` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `blank_line_count` [INFO] [stdout] --> src/bin/cat.rs:143:30 [INFO] [stdout] | [INFO] [stdout] 143 | let (valid_line, blank_line_count) = valid(line.clone(), blank_line_count, opt.squeeze_blank); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_blank_line_count` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `rust-core-utils` (bin "head") due to 2 previous errors; 11 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `rust-core-utils` (bin "head" test) due to 2 previous errors; 11 warnings emitted [INFO] [stderr] error: could not compile `rust-core-utils` (bin "cat") due to 2 previous errors; 15 warnings emitted [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/cat.rs:137:17 [INFO] [stdout] | [INFO] [stdout] 137 | let mut valid_line = false; [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `number_nonempty` and `ignored` are never read [INFO] [stdout] --> src/bin/cat.rs:21:5 [INFO] [stdout] | [INFO] [stdout] 14 | struct Opt { [INFO] [stdout] | --- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 21 | number_nonempty: bool, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 49 | ignored: bool, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Opt` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `walk_buffer_bytes`, `walk_buffer_lines`, `last_bytes`, `last_lines`, `len`, and `buffer_position` are never used [INFO] [stdout] --> src/bin/util/file.rs:106:12 [INFO] [stdout] | [INFO] [stdout] 22 | impl FileDetail { [INFO] [stdout] | --------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 106 | pub fn walk_buffer_bytes(&mut self, bytes: usize) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 115 | pub fn walk_buffer_lines(&mut self, lines: usize) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 123 | pub fn last_bytes(&mut self, bytes: usize) -> (usize, Vec) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 142 | pub fn last_lines(&mut self, lines: usize) -> (usize, Vec) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 163 | pub fn len(&self) -> Result { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 177 | pub fn buffer_position(&self) -> usize { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `FileReadStrategy` is never used [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:4:10 [INFO] [stdout] | [INFO] [stdout] 4 | pub enum FileReadStrategy { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `FileReadStrategy` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated functions `pick` and `from_last_converter` are never used [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:13:12 [INFO] [stdout] | [INFO] [stdout] 12 | impl FileReadStrategy { [INFO] [stdout] | --------------------- associated functions in this implementation [INFO] [stdout] 13 | pub fn pick(bytes: String, lines: String) -> FileReadStrategy { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 49 | fn from_last_converter(size: String) -> Option<(usize, usize)> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/cat.rs:153:13 [INFO] [stdout] | [INFO] [stdout] 153 | / match f.read_chunk(size) { [INFO] [stdout] 154 | | Some(b) => writter.write_all(&b), [INFO] [stdout] 155 | | _ => Ok(()), [INFO] [stdout] 156 | | }; [INFO] [stdout] | |_____________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 153 | let _ = match f.read_chunk(size) { [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/bin/util/file.rs:51:26 [INFO] [stdout] | [INFO] [stdout] 43 | let mut opened_file = File::open(self.path.clone())?; [INFO] [stdout] | ----------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 51 | Box::new(BufReader::new(opened_file)) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] = note: requested on the command line with `-D tail-expr-drop-order` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `from_byte` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:14:17 [INFO] [stdout] | [INFO] [stdout] 14 | let mut from_byte: usize = 0; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `last_bytes` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:15:17 [INFO] [stdout] | [INFO] [stdout] 15 | let mut last_bytes: usize = 0; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `from_line` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:16:17 [INFO] [stdout] | [INFO] [stdout] 16 | let mut from_line: usize = 0; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `line_number` [INFO] [stdout] --> src/bin/tail.rs:296:13 [INFO] [stdout] | [INFO] [stdout] 296 | let mut line_number = 0; [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_line_number` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `last_lines` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:17:17 [INFO] [stdout] | [INFO] [stdout] 17 | let mut last_lines: usize = 0; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `from` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:50:17 [INFO] [stdout] | [INFO] [stdout] 50 | let mut from: usize = 0; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `last` is never read [INFO] [stdout] --> src/bin/util/file_read_strategy.rs:51:17 [INFO] [stdout] | [INFO] [stdout] 51 | let mut last: usize = 0; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 15 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/tail.rs:296:9 [INFO] [stdout] | [INFO] [stdout] 296 | let mut line_number = 0; [INFO] [stdout] | ----^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `max_unchanged_stats`, `pid`, `quiet`, and `verbose` are never read [INFO] [stdout] --> src/bin/tail.rs:100:9 [INFO] [stdout] | [INFO] [stdout] 97 | struct TailOption { [INFO] [stdout] | ---------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 100 | pub max_unchanged_stats: usize, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] 101 | pub pid: usize, [INFO] [stdout] | ^^^ [INFO] [stdout] 102 | pub quiet: bool, [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 105 | pub verbose: bool, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `TailOption` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `is_text`, `walk_buffer_bytes`, and `buffer_position` are never used [INFO] [stdout] --> src/bin/util/file.rs:102:12 [INFO] [stdout] | [INFO] [stdout] 22 | impl FileDetail { [INFO] [stdout] | --------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 102 | pub fn is_text(&self) -> bool { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 106 | pub fn walk_buffer_bytes(&mut self, bytes: usize) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 177 | pub fn buffer_position(&self) -> usize { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/tail.rs:149:9 [INFO] [stdout] | [INFO] [stdout] 149 | to.output_channel.send(Line{ from_file: None, content: content }); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 149 | let _ = to.output_channel.send(Line{ from_file: None, content: content }); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/tail.rs:171:21 [INFO] [stdout] | [INFO] [stdout] 171 | to.output_channel.send(Line{ from_file: None, content: content }); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 171 | let _ = to.output_channel.send(Line{ from_file: None, content: content }); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/tail.rs:194:33 [INFO] [stdout] | [INFO] [stdout] 194 | ... to.output_channel.send(Line{ from_file: Some(to.file.clone()), content: content }); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 194 | let _ = to.output_channel.send(Line{ from_file: Some(to.file.clone()), content: content }); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `Nome` should have a snake case name [INFO] [stdout] --> src/bin/tail.rs:196:29 [INFO] [stdout] | [INFO] [stdout] 196 | ... Nome => { [INFO] [stdout] | ^^^^ help: convert the identifier to snake case: `nome` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/tail.rs:212:21 [INFO] [stdout] | [INFO] [stdout] 212 | to.output_channel.send(Line{ from_file: Some(to.file.clone()), content: content }); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 212 | let _ = to.output_channel.send(Line{ from_file: Some(to.file.clone()), content: content }); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/tail.rs:222:21 [INFO] [stdout] | [INFO] [stdout] 222 | to.output_channel.send(Line{ from_file: Some(to.file.clone()), content: content }); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 222 | let _ = to.output_channel.send(Line{ from_file: Some(to.file.clone()), content: content }); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/tail.rs:239:33 [INFO] [stdout] | [INFO] [stdout] 239 | ... to.output_channel.send(Line{ from_file: Some(to.file.clone()), content: b }); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 239 | let _ = to.output_channel.send(Line{ from_file: Some(to.file.clone()), content: b }); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `Nome` should have a snake case name [INFO] [stdout] --> src/bin/tail.rs:241:29 [INFO] [stdout] | [INFO] [stdout] 241 | ... Nome => { [INFO] [stdout] | ^^^^ help: convert the identifier to snake case: `nome` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/bin/tail.rs:305:69 [INFO] [stdout] | [INFO] [stdout] 302 | let (s, r) = crossbeam::bounded(100); [INFO] [stdout] | - these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 303 | let (close_tx, close_rx) = crossbeam::bounded(1); [INFO] [stdout] | -------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 304 | [INFO] [stdout] 305 | let output_thread = thread::spawn(move || { output_collector(r, close_rx.clone()) }); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] = note: requested on the command line with `-D tail-expr-drop-order` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `last_read` is never read [INFO] [stdout] --> src/bin/tail.rs:183:17 [INFO] [stdout] | [INFO] [stdout] 183 | let mut last_read = 0; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/tail.rs:345:9 [INFO] [stdout] | [INFO] [stdout] 345 | t.join(); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 345 | let _ = t.join(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `Nome` [INFO] [stdout] --> src/bin/tail.rs:196:29 [INFO] [stdout] | [INFO] [stdout] 196 | ... Nome => { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_Nome` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/tail.rs:348:5 [INFO] [stdout] | [INFO] [stdout] 348 | close_tx.send(true); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 348 | let _ = close_tx.send(true); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `Nome` [INFO] [stdout] --> src/bin/tail.rs:241:29 [INFO] [stdout] | [INFO] [stdout] 241 | ... Nome => { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_Nome` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/tail.rs:349:5 [INFO] [stdout] | [INFO] [stdout] 349 | output_thread.join(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 349 | let _ = output_thread.join(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/bin/util/file.rs:51:26 [INFO] [stdout] | [INFO] [stdout] 43 | let mut opened_file = File::open(self.path.clone())?; [INFO] [stdout] | ----------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 51 | Box::new(BufReader::new(opened_file)) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `rust-core-utils` (bin "cat" test) due to 2 previous errors; 15 warnings emitted [INFO] [stdout] error: aborting due to 2 previous errors; 27 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `rust-core-utils` (bin "tail") due to 3 previous errors; 27 warnings emitted [INFO] [stdout] warning: unused variable: `line_number` [INFO] [stdout] --> src/bin/tail.rs:296:13 [INFO] [stdout] | [INFO] [stdout] 296 | let mut line_number = 0; [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_line_number` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/tail.rs:296:9 [INFO] [stdout] | [INFO] [stdout] 296 | let mut line_number = 0; [INFO] [stdout] | ----^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `max_unchanged_stats`, `pid`, `quiet`, and `verbose` are never read [INFO] [stdout] --> src/bin/tail.rs:100:9 [INFO] [stdout] | [INFO] [stdout] 97 | struct TailOption { [INFO] [stdout] | ---------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 100 | pub max_unchanged_stats: usize, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] 101 | pub pid: usize, [INFO] [stdout] | ^^^ [INFO] [stdout] 102 | pub quiet: bool, [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 105 | pub verbose: bool, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `TailOption` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `is_text`, `walk_buffer_bytes`, and `buffer_position` are never used [INFO] [stdout] --> src/bin/util/file.rs:102:12 [INFO] [stdout] | [INFO] [stdout] 22 | impl FileDetail { [INFO] [stdout] | --------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 102 | pub fn is_text(&self) -> bool { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 106 | pub fn walk_buffer_bytes(&mut self, bytes: usize) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 177 | pub fn buffer_position(&self) -> usize { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/tail.rs:149:9 [INFO] [stdout] | [INFO] [stdout] 149 | to.output_channel.send(Line{ from_file: None, content: content }); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 149 | let _ = to.output_channel.send(Line{ from_file: None, content: content }); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/tail.rs:171:21 [INFO] [stdout] | [INFO] [stdout] 171 | to.output_channel.send(Line{ from_file: None, content: content }); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 171 | let _ = to.output_channel.send(Line{ from_file: None, content: content }); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/tail.rs:194:33 [INFO] [stdout] | [INFO] [stdout] 194 | ... to.output_channel.send(Line{ from_file: Some(to.file.clone()), content: content }); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 194 | let _ = to.output_channel.send(Line{ from_file: Some(to.file.clone()), content: content }); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `Nome` should have a snake case name [INFO] [stdout] --> src/bin/tail.rs:196:29 [INFO] [stdout] | [INFO] [stdout] 196 | ... Nome => { [INFO] [stdout] | ^^^^ help: convert the identifier to snake case: `nome` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/tail.rs:212:21 [INFO] [stdout] | [INFO] [stdout] 212 | to.output_channel.send(Line{ from_file: Some(to.file.clone()), content: content }); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 212 | let _ = to.output_channel.send(Line{ from_file: Some(to.file.clone()), content: content }); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/tail.rs:222:21 [INFO] [stdout] | [INFO] [stdout] 222 | to.output_channel.send(Line{ from_file: Some(to.file.clone()), content: content }); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 222 | let _ = to.output_channel.send(Line{ from_file: Some(to.file.clone()), content: content }); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/tail.rs:239:33 [INFO] [stdout] | [INFO] [stdout] 239 | ... to.output_channel.send(Line{ from_file: Some(to.file.clone()), content: b }); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 239 | let _ = to.output_channel.send(Line{ from_file: Some(to.file.clone()), content: b }); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `Nome` should have a snake case name [INFO] [stdout] --> src/bin/tail.rs:241:29 [INFO] [stdout] | [INFO] [stdout] 241 | ... Nome => { [INFO] [stdout] | ^^^^ help: convert the identifier to snake case: `nome` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/bin/tail.rs:305:69 [INFO] [stdout] | [INFO] [stdout] 302 | let (s, r) = crossbeam::bounded(100); [INFO] [stdout] | - these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 303 | let (close_tx, close_rx) = crossbeam::bounded(1); [INFO] [stdout] | -------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 304 | [INFO] [stdout] 305 | let output_thread = thread::spawn(move || { output_collector(r, close_rx.clone()) }); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] = note: requested on the command line with `-D tail-expr-drop-order` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/tail.rs:345:9 [INFO] [stdout] | [INFO] [stdout] 345 | t.join(); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 345 | let _ = t.join(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/tail.rs:348:5 [INFO] [stdout] | [INFO] [stdout] 348 | close_tx.send(true); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 348 | let _ = close_tx.send(true); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/tail.rs:349:5 [INFO] [stdout] | [INFO] [stdout] 349 | output_thread.join(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 349 | let _ = output_thread.join(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/bin/util/file.rs:51:26 [INFO] [stdout] | [INFO] [stdout] 43 | let mut opened_file = File::open(self.path.clone())?; [INFO] [stdout] | ----------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 51 | Box::new(BufReader::new(opened_file)) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors; 27 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `rust-core-utils` (bin "tail" test) due to 3 previous errors; 27 warnings emitted [INFO] running `Command { std: "docker" "inspect" "9a5f76050590d3620385c795a7febb0e876c334fd8430411cdbf64aa4667ed0c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9a5f76050590d3620385c795a7febb0e876c334fd8430411cdbf64aa4667ed0c", kill_on_drop: false }` [INFO] [stdout] 9a5f76050590d3620385c795a7febb0e876c334fd8430411cdbf64aa4667ed0c