[INFO] fetching crate cf-quick-scanf-like-input 0.1.0... [INFO] checking cf-quick-scanf-like-input-0.1.0 against try#3bb2879ea9e58d65b875f9a98df44f4a43ce2597 for pr-85387 [INFO] extracting crate cf-quick-scanf-like-input 0.1.0 into /workspace/builds/worker-5/source [INFO] validating manifest of crates.io crate cf-quick-scanf-like-input 0.1.0 on toolchain 3bb2879ea9e58d65b875f9a98df44f4a43ce2597 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate cf-quick-scanf-like-input 0.1.0 [INFO] finished tweaking crates.io crate cf-quick-scanf-like-input 0.1.0 [INFO] tweaked toml for crates.io crate cf-quick-scanf-like-input 0.1.0 written to /workspace/builds/worker-5/source/Cargo.toml [INFO] crate crates.io crate cf-quick-scanf-like-input 0.1.0 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] b5d3b9c8f57cb76f544b5c6dd5c83b191e9ebbb9ffae3a9ea9e9b7758e159c42 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "b5d3b9c8f57cb76f544b5c6dd5c83b191e9ebbb9ffae3a9ea9e9b7758e159c42", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b5d3b9c8f57cb76f544b5c6dd5c83b191e9ebbb9ffae3a9ea9e9b7758e159c42", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b5d3b9c8f57cb76f544b5c6dd5c83b191e9ebbb9ffae3a9ea9e9b7758e159c42", kill_on_drop: false }` [INFO] [stdout] b5d3b9c8f57cb76f544b5c6dd5c83b191e9ebbb9ffae3a9ea9e9b7758e159c42 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] ec3e44c00b1811a00ee0f2636f7108866dbf442d2c96c5774677b27cfb276e9f [INFO] running `Command { std: "docker" "start" "-a" "ec3e44c00b1811a00ee0f2636f7108866dbf442d2c96c5774677b27cfb276e9f", kill_on_drop: false }` [INFO] [stderr] Checking cf-quick-scanf-like-input v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused imports: `Read`, `Write`, `self` [INFO] [stdout] --> src/lib.rs:1:15 [INFO] [stdout] | [INFO] [stdout] 1 | use std::io::{self, Read, Write}; [INFO] [stdout] | ^^^^ ^^^^ ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused macro definition [INFO] [stdout] --> src/lib.rs:3:1 [INFO] [stdout] | [INFO] [stdout] 3 | / macro_rules! read_input_lines { [INFO] [stdout] 4 | | ($buf:ident) => { [INFO] [stdout] 5 | | { [INFO] [stdout] 6 | | let mut stdin = io::stdin(); [INFO] [stdout] ... | [INFO] [stdout] 10 | | } [INFO] [stdout] 11 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_macros)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused macro definition [INFO] [stdout] --> src/lib.rs:13:1 [INFO] [stdout] | [INFO] [stdout] 13 | / macro_rules! read_line_of_vars { [INFO] [stdout] 14 | | ($type:ty, $lines:ident, $($var:ident),+) => { [INFO] [stdout] 15 | | { [INFO] [stdout] 16 | | let (line, rest) = $lines.split_first().unwrap(); [INFO] [stdout] ... | [INFO] [stdout] 41 | | } [INFO] [stdout] 42 | | } [INFO] [stdout] | |_^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Read`, `Write`, `self` [INFO] [stdout] --> src/lib.rs:1:15 [INFO] [stdout] | [INFO] [stdout] 1 | use std::io::{self, Read, Write}; [INFO] [stdout] | ^^^^ ^^^^ ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused macro definition [INFO] [stdout] --> src/lib.rs:3:1 [INFO] [stdout] | [INFO] [stdout] 3 | / macro_rules! read_input_lines { [INFO] [stdout] 4 | | ($buf:ident) => { [INFO] [stdout] 5 | | { [INFO] [stdout] 6 | | let mut stdin = io::stdin(); [INFO] [stdout] ... | [INFO] [stdout] 10 | | } [INFO] [stdout] 11 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_macros)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused macro definition [INFO] [stdout] --> src/lib.rs:13:1 [INFO] [stdout] | [INFO] [stdout] 13 | / macro_rules! read_line_of_vars { [INFO] [stdout] 14 | | ($type:ty, $lines:ident, $($var:ident),+) => { [INFO] [stdout] 15 | | { [INFO] [stdout] 16 | | let (line, rest) = $lines.split_first().unwrap(); [INFO] [stdout] ... | [INFO] [stdout] 41 | | } [INFO] [stdout] 42 | | } [INFO] [stdout] | |_^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Write` [INFO] [stdout] --> src/main.rs:1:27 [INFO] [stdout] | [INFO] [stdout] 1 | use std::io::{self, Read, Write}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Write` [INFO] [stdout] --> src/main.rs:1:27 [INFO] [stdout] | [INFO] [stdout] 1 | use std::io::{self, Read, Write}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `parsed` [INFO] [stdout] --> src/main.rs:30:20 [INFO] [stdout] | [INFO] [stdout] 30 | Some((value, parsed)) => { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_parsed` [INFO] [stdout] ... [INFO] [stdout] 54 | read_line_of_vars!(i32, lines, t); [INFO] [stdout] | ---------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] = note: this warning originates in the macro `read_line_of_vars` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `parsed` [INFO] [stdout] --> src/main.rs:30:20 [INFO] [stdout] | [INFO] [stdout] 30 | Some((value, parsed)) => { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_parsed` [INFO] [stdout] ... [INFO] [stdout] 58 | read_line_of_vars!(i32, lines, n, x); [INFO] [stdout] | ------------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this warning originates in the macro `read_line_of_vars` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:7:6 [INFO] [stdout] | [INFO] [stdout] 7 | stdin.read_to_string(&mut $buf); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 50 | let mut lines: &[&str] = read_input_lines!(buf); [INFO] [stdout] | ---------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in the macro `read_input_lines` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `parsed` [INFO] [stdout] --> src/main.rs:30:20 [INFO] [stdout] | [INFO] [stdout] 30 | Some((value, parsed)) => { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_parsed` [INFO] [stdout] ... [INFO] [stdout] 54 | read_line_of_vars!(i32, lines, t); [INFO] [stdout] | ---------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] = note: this warning originates in the macro `read_line_of_vars` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `parsed` [INFO] [stdout] --> src/main.rs:30:20 [INFO] [stdout] | [INFO] [stdout] 30 | Some((value, parsed)) => { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_parsed` [INFO] [stdout] ... [INFO] [stdout] 58 | read_line_of_vars!(i32, lines, n, x); [INFO] [stdout] | ------------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this warning originates in the macro `read_line_of_vars` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:7:6 [INFO] [stdout] | [INFO] [stdout] 7 | stdin.read_to_string(&mut $buf); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 50 | let mut lines: &[&str] = read_input_lines!(buf); [INFO] [stdout] | ---------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in the macro `read_input_lines` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.47s [INFO] running `Command { std: "docker" "inspect" "ec3e44c00b1811a00ee0f2636f7108866dbf442d2c96c5774677b27cfb276e9f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ec3e44c00b1811a00ee0f2636f7108866dbf442d2c96c5774677b27cfb276e9f", kill_on_drop: false }` [INFO] [stdout] ec3e44c00b1811a00ee0f2636f7108866dbf442d2c96c5774677b27cfb276e9f