[INFO] cloning repository https://github.com/alexandermeade/Snakes-and-bits [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alexandermeade/Snakes-and-bits" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexandermeade%2FSnakes-and-bits", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexandermeade%2FSnakes-and-bits'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 24a2f72386b66ac0fc9adb1d583ba86dc11b1dac [INFO] checking alexandermeade/Snakes-and-bits against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexandermeade%2FSnakes-and-bits" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/alexandermeade/Snakes-and-bits [INFO] finished tweaking git repo https://github.com/alexandermeade/Snakes-and-bits [INFO] tweaked toml for git repo https://github.com/alexandermeade/Snakes-and-bits written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/alexandermeade/Snakes-and-bits on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/alexandermeade/Snakes-and-bits 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "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-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 666f2f1e773a8e03ba5588227316cb8cacbc1af3aaff71403379e9921df7f744 [INFO] running `Command { std: "docker" "start" "-a" "666f2f1e773a8e03ba5588227316cb8cacbc1af3aaff71403379e9921df7f744", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "666f2f1e773a8e03ba5588227316cb8cacbc1af3aaff71403379e9921df7f744", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "666f2f1e773a8e03ba5588227316cb8cacbc1af3aaff71403379e9921df7f744", kill_on_drop: false }` [INFO] [stdout] 666f2f1e773a8e03ba5588227316cb8cacbc1af3aaff71403379e9921df7f744 [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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 277e454b710f541ed6bbf86d3364be9965b00a2bc992e811f395f18ba863deb2 [INFO] running `Command { std: "docker" "start" "-a" "277e454b710f541ed6bbf86d3364be9965b00a2bc992e811f395f18ba863deb2", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.167 [INFO] [stderr] Compiling proc-macro2 v1.0.92 [INFO] [stderr] Compiling unicode-ident v1.0.14 [INFO] [stderr] Compiling signal-hook v0.3.17 [INFO] [stderr] Compiling cfg_aliases v0.2.1 [INFO] [stderr] Checking byteorder v1.5.0 [INFO] [stderr] Checking bitflags v2.6.0 [INFO] [stderr] Checking smallvec v1.13.2 [INFO] [stderr] Checking log v0.4.22 [INFO] [stderr] Compiling nix v0.29.0 [INFO] [stderr] Compiling rustix v0.38.41 [INFO] [stderr] Checking linux-raw-sys v0.4.14 [INFO] [stderr] Checking tokio v1.42.0 [INFO] [stderr] Checking colored v2.1.0 [INFO] [stderr] Compiling quote v1.0.37 [INFO] [stderr] Compiling syn v2.0.91 [INFO] [stderr] Checking tokio-stream v0.1.17 [INFO] [stderr] Checking getrandom v0.2.15 [INFO] [stderr] Checking signal-hook-registry v1.4.2 [INFO] [stderr] Checking mio v1.0.3 [INFO] [stderr] Checking parking_lot_core v0.9.10 [INFO] [stderr] Checking parking_lot v0.12.3 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking signal-hook-mio v0.2.4 [INFO] [stderr] Checking crossterm v0.28.1 [INFO] [stderr] Checking ctrlc v3.4.5 [INFO] [stderr] Compiling zerocopy-derive v0.7.35 [INFO] [stderr] Checking zerocopy v0.7.35 [INFO] [stderr] Checking ppv-lite86 v0.2.20 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking snake_and_bits v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `b1` [INFO] [stdout] --> src/run.rs:284:25 [INFO] [stdout] | [INFO] [stdout] 284 | let b1 = std::io::stdin().read_line(&mut line).unwrap(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_b1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b1` [INFO] [stdout] --> src/run.rs:318:25 [INFO] [stdout] | [INFO] [stdout] 318 | let b1 = std::io::stdin().read_line(&mut line).unwrap(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_b1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/run.rs:556:13 [INFO] [stdout] | [INFO] [stdout] 556 | let mut output = String::from(""); [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `line` is assigned to, but never used [INFO] [stdout] --> src/run.rs:554:13 [INFO] [stdout] | [INFO] [stdout] 554 | let mut line = 1; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_line` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `colmn` is assigned to, but never used [INFO] [stdout] --> src/run.rs:555:13 [INFO] [stdout] | [INFO] [stdout] 555 | let mut colmn = 0; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_colmn` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `line` is never read [INFO] [stdout] --> src/run.rs:646:25 [INFO] [stdout] | [INFO] [stdout] 646 | line += 1; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `colmn` is never read [INFO] [stdout] --> src/run.rs:618:17 [INFO] [stdout] | [INFO] [stdout] 618 | colmn += 1; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `colmn` is never read [INFO] [stdout] --> src/run.rs:640:25 [INFO] [stdout] | [INFO] [stdout] 640 | colmn += 4; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `colmn` is never read [INFO] [stdout] --> src/run.rs:645:25 [INFO] [stdout] | [INFO] [stdout] 645 | colmn = 1; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `colmn` is never read [INFO] [stdout] --> src/run.rs:662:25 [INFO] [stdout] | [INFO] [stdout] 662 | colmn += 1; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `populate_spaces` and `print_term` are never used [INFO] [stdout] --> src/run.rs:535:8 [INFO] [stdout] | [INFO] [stdout] 64 | impl Executer { [INFO] [stdout] | ------------- associated items in this implementation [INFO] [stdout] ... [INFO] [stdout] 535 | fn populate_spaces(colmn_count:i32) -> String { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 541 | fn print_term(&self) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/lexer.rs:27:30 [INFO] [stdout] | [INFO] [stdout] 27 | if self.index + 1 >= self.content.len().try_into().unwrap() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: comparison is useless due to type limits [INFO] [stdout] --> src/run.rs:166:12 [INFO] [stdout] | [INFO] [stdout] 166 | if index - 1< 0 || index >= toks.len() { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_comparisons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: comparison is useless due to type limits [INFO] [stdout] --> src/run.rs:189:12 [INFO] [stdout] | [INFO] [stdout] 189 | if index < 0 || index + 1 >= toks.len() { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: comparison is useless due to type limits [INFO] [stdout] --> src/run.rs:197:13 [INFO] [stdout] | [INFO] [stdout] 197 | if self.index_line - 1 < 0 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: comparison is useless due to type limits [INFO] [stdout] --> src/run.rs:294:24 [INFO] [stdout] | [INFO] [stdout] 294 | if self.stack.len() < 0 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: comparison is useless due to type limits [INFO] [stdout] --> src/run.rs:365:43 [INFO] [stdout] | [INFO] [stdout] 365 | ... self.stack_index = if self.stack_index - 1 < 0 {if (self.stack.len() as i32- 1) < 0 {0} else {self.stack.len() - 1}} else {(self.st... [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `snake_and_bits` (bin "snake_and_bits") due to 1 previous error; 16 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: unused variable: `b1` [INFO] [stdout] --> src/run.rs:284:25 [INFO] [stdout] | [INFO] [stdout] 284 | let b1 = std::io::stdin().read_line(&mut line).unwrap(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_b1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b1` [INFO] [stdout] --> src/run.rs:318:25 [INFO] [stdout] | [INFO] [stdout] 318 | let b1 = std::io::stdin().read_line(&mut line).unwrap(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_b1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/run.rs:556:13 [INFO] [stdout] | [INFO] [stdout] 556 | let mut output = String::from(""); [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `line` is assigned to, but never used [INFO] [stdout] --> src/run.rs:554:13 [INFO] [stdout] | [INFO] [stdout] 554 | let mut line = 1; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_line` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `colmn` is assigned to, but never used [INFO] [stdout] --> src/run.rs:555:13 [INFO] [stdout] | [INFO] [stdout] 555 | let mut colmn = 0; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_colmn` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `line` is never read [INFO] [stdout] --> src/run.rs:646:25 [INFO] [stdout] | [INFO] [stdout] 646 | line += 1; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `colmn` is never read [INFO] [stdout] --> src/run.rs:618:17 [INFO] [stdout] | [INFO] [stdout] 618 | colmn += 1; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `colmn` is never read [INFO] [stdout] --> src/run.rs:640:25 [INFO] [stdout] | [INFO] [stdout] 640 | colmn += 4; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `colmn` is never read [INFO] [stdout] --> src/run.rs:645:25 [INFO] [stdout] | [INFO] [stdout] 645 | colmn = 1; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `colmn` is never read [INFO] [stdout] --> src/run.rs:662:25 [INFO] [stdout] | [INFO] [stdout] 662 | colmn += 1; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `populate_spaces` and `print_term` are never used [INFO] [stdout] --> src/run.rs:535:8 [INFO] [stdout] | [INFO] [stdout] 64 | impl Executer { [INFO] [stdout] | ------------- associated items in this implementation [INFO] [stdout] ... [INFO] [stdout] 535 | fn populate_spaces(colmn_count:i32) -> String { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 541 | fn print_term(&self) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/lexer.rs:27:30 [INFO] [stdout] | [INFO] [stdout] 27 | if self.index + 1 >= self.content.len().try_into().unwrap() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: comparison is useless due to type limits [INFO] [stdout] --> src/run.rs:166:12 [INFO] [stdout] | [INFO] [stdout] 166 | if index - 1< 0 || index >= toks.len() { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_comparisons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: comparison is useless due to type limits [INFO] [stdout] --> src/run.rs:189:12 [INFO] [stdout] | [INFO] [stdout] 189 | if index < 0 || index + 1 >= toks.len() { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: comparison is useless due to type limits [INFO] [stdout] --> src/run.rs:197:13 [INFO] [stdout] | [INFO] [stdout] 197 | if self.index_line - 1 < 0 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: comparison is useless due to type limits [INFO] [stdout] --> src/run.rs:294:24 [INFO] [stdout] | [INFO] [stdout] 294 | if self.stack.len() < 0 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: comparison is useless due to type limits [INFO] [stdout] --> src/run.rs:365:43 [INFO] [stdout] | [INFO] [stdout] 365 | ... self.stack_index = if self.stack_index - 1 < 0 {if (self.stack.len() as i32- 1) < 0 {0} else {self.stack.len() - 1}} else {(self.st... [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `snake_and_bits` (bin "snake_and_bits" test) due to 1 previous error; 16 warnings emitted [INFO] running `Command { std: "docker" "inspect" "277e454b710f541ed6bbf86d3364be9965b00a2bc992e811f395f18ba863deb2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "277e454b710f541ed6bbf86d3364be9965b00a2bc992e811f395f18ba863deb2", kill_on_drop: false }` [INFO] [stdout] 277e454b710f541ed6bbf86d3364be9965b00a2bc992e811f395f18ba863deb2