[INFO] cloning repository https://github.com/thomasdelrue/rusty-mazes [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thomasdelrue/rusty-mazes" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthomasdelrue%2Frusty-mazes", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthomasdelrue%2Frusty-mazes'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] fa5c1a29e24985e6db66afbb07c6070a6cfb04d2 [INFO] checking thomasdelrue/rusty-mazes against master#9c67cecd12d79f1bbc00a74f70e7ef9fff086a5a for pr-138458 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthomasdelrue%2Frusty-mazes" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/thomasdelrue/rusty-mazes on toolchain 9c67cecd12d79f1bbc00a74f70e7ef9fff086a5a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9c67cecd12d79f1bbc00a74f70e7ef9fff086a5a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/thomasdelrue/rusty-mazes [INFO] finished tweaking git repo https://github.com/thomasdelrue/rusty-mazes [INFO] tweaked toml for git repo https://github.com/thomasdelrue/rusty-mazes written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/thomasdelrue/rusty-mazes 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" "+9c67cecd12d79f1bbc00a74f70e7ef9fff086a5a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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-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_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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+9c67cecd12d79f1bbc00a74f70e7ef9fff086a5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6f6b2c6dfefe923be1b40b0e913e3bc7d1e5bc76588744693963c16676099fd3 [INFO] running `Command { std: "docker" "start" "-a" "6f6b2c6dfefe923be1b40b0e913e3bc7d1e5bc76588744693963c16676099fd3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6f6b2c6dfefe923be1b40b0e913e3bc7d1e5bc76588744693963c16676099fd3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6f6b2c6dfefe923be1b40b0e913e3bc7d1e5bc76588744693963c16676099fd3", kill_on_drop: false }` [INFO] [stdout] 6f6b2c6dfefe923be1b40b0e913e3bc7d1e5bc76588744693963c16676099fd3 [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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+9c67cecd12d79f1bbc00a74f70e7ef9fff086a5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 01e7fd0159c00b53e3daba8941677b34c88c4a33e8e8d096929b7ecc4c4edaca [INFO] running `Command { std: "docker" "start" "-a" "01e7fd0159c00b53e3daba8941677b34c88c4a33e8e8d096929b7ecc4c4edaca", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.95 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Checking ppv-lite86 v0.2.10 [INFO] [stderr] Checking getrandom v0.2.3 [INFO] [stderr] Checking rand_core v0.6.2 [INFO] [stderr] Checking rand_chacha v0.3.0 [INFO] [stderr] Checking rand v0.8.3 [INFO] [stderr] Checking mazes v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `links` is never read [INFO] [stdout] --> src/cell.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 6 | pub struct Cell { [INFO] [stdout] | ---- field in this struct [INFO] [stdout] ... [INFO] [stdout] 9 | links: HashMap<(u8, u8), bool>, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `pos`, `link`, `unlink`, `links`, and `is_linked_to` are never used [INFO] [stdout] --> src/cell.rs:23:12 [INFO] [stdout] | [INFO] [stdout] 13 | impl Cell { [INFO] [stdout] | --------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 23 | pub fn pos(&self) -> (u8, u8) { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 27 | pub fn link(&mut self, other: &mut Cell, bidi: bool) { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 34 | pub fn unlink(&mut self, other: &mut Cell, bidi: bool) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 41 | pub fn links(&self) -> hash_map::Keys<(u8, u8), bool> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 45 | pub fn is_linked_to(&self, other: &Cell) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `random_cell` and `size` are never used [INFO] [stdout] --> src/grid.rs:30:12 [INFO] [stdout] | [INFO] [stdout] 13 | impl Grid { [INFO] [stdout] | --------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 30 | pub fn random_cell(&self) -> &Cell { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 36 | pub fn size(&self) -> usize { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `unlink` and `links` are never used [INFO] [stdout] --> src/cell.rs:34:12 [INFO] [stdout] | [INFO] [stdout] 13 | impl Cell { [INFO] [stdout] | --------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 34 | pub fn unlink(&mut self, other: &mut Cell, bidi: bool) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 41 | pub fn links(&self) -> hash_map::Keys<(u8, u8), bool> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `size` is never used [INFO] [stdout] --> src/grid.rs:36:12 [INFO] [stdout] | [INFO] [stdout] 13 | impl Grid { [INFO] [stdout] | --------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 36 | pub fn size(&self) -> usize { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.60s [INFO] running `Command { std: "docker" "inspect" "01e7fd0159c00b53e3daba8941677b34c88c4a33e8e8d096929b7ecc4c4edaca", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "01e7fd0159c00b53e3daba8941677b34c88c4a33e8e8d096929b7ecc4c4edaca", kill_on_drop: false }` [INFO] [stdout] 01e7fd0159c00b53e3daba8941677b34c88c4a33e8e8d096929b7ecc4c4edaca