[INFO] cloning repository https://github.com/lolgeny/advent_of_code_2020 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lolgeny/advent_of_code_2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flolgeny%2Fadvent_of_code_2020", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flolgeny%2Fadvent_of_code_2020'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] a0062cbc407f184dd42a555f20e6ccbf9912f8c4 [INFO] testing lolgeny/advent_of_code_2020 against 1.60.0 for beta-1.61-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flolgeny%2Fadvent_of_code_2020" "/workspace/builds/worker-56/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-56/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/lolgeny/advent_of_code_2020 on toolchain 1.60.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] removed /workspace/builds/worker-56/source/.cargo/config.toml [INFO] started tweaking git repo https://github.com/lolgeny/advent_of_code_2020 [INFO] finished tweaking git repo https://github.com/lolgeny/advent_of_code_2020 [INFO] tweaked toml for git repo https://github.com/lolgeny/advent_of_code_2020 written to /workspace/builds/worker-56/source/Cargo.toml [INFO] crate git repo https://github.com/lolgeny/advent_of_code_2020 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] efe3307d779174961a4e36f818fece4d9d0d196a8d457972a927a17ec46b5c7b [INFO] running `Command { std: "docker" "start" "-a" "efe3307d779174961a4e36f818fece4d9d0d196a8d457972a927a17ec46b5c7b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "efe3307d779174961a4e36f818fece4d9d0d196a8d457972a927a17ec46b5c7b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "efe3307d779174961a4e36f818fece4d9d0d196a8d457972a927a17ec46b5c7b", kill_on_drop: false }` [INFO] [stdout] efe3307d779174961a4e36f818fece4d9d0d196a8d457972a927a17ec46b5c7b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] de078cac3c83ee525852b93acc71e4d1d313371c2d6dfa0d0a87facbbd35ae11 [INFO] running `Command { std: "docker" "start" "-a" "de078cac3c83ee525852b93acc71e4d1d313371c2d6dfa0d0a87facbbd35ae11", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling const_fn v0.4.4 [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling libc v0.2.81 [INFO] [stderr] Compiling syn v1.0.54 [INFO] [stderr] Compiling scopeguard v1.1.0 [INFO] [stderr] Compiling rayon-core v1.9.0 [INFO] [stderr] Compiling either v1.6.1 [INFO] [stderr] Compiling crossbeam-utils v0.8.1 [INFO] [stderr] Compiling memoffset v0.6.1 [INFO] [stderr] Compiling rayon v1.5.0 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Compiling num_cpus v1.13.0 [INFO] [stderr] Compiling crossbeam-epoch v0.9.1 [INFO] [stderr] Compiling crossbeam-channel v0.5.0 [INFO] [stderr] Compiling crossbeam-deque v0.8.0 [INFO] [stderr] Compiling cache v0.1.0 (/opt/rustwide/workdir/src/aoc/cache) [INFO] [stderr] Compiling aoc v0.1.0 (/opt/rustwide/workdir/src/aoc) [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/aoc/grid/mod.rs:11:8 [INFO] [stdout] | [INFO] [stdout] 11 | fn new(default: T) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `from` [INFO] [stdout] --> src/aoc/grid/mod.rs:14:8 [INFO] [stdout] | [INFO] [stdout] 14 | fn from(vec: Vec, default: T) -> Self { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `iter` [INFO] [stdout] --> src/aoc/grid/mod.rs:20:8 [INFO] [stdout] | [INFO] [stdout] 20 | fn iter(&self) -> Iter { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `push` [INFO] [stdout] --> src/aoc/grid/mod.rs:23:8 [INFO] [stdout] | [INFO] [stdout] 23 | fn push(&mut self, value: T) { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `default` [INFO] [stdout] --> src/aoc/grid/mod.rs:48:5 [INFO] [stdout] | [INFO] [stdout] 48 | default: T, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `Grid` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/aoc/grid/mod.rs:46:10 [INFO] [stdout] | [INFO] [stdout] 46 | #[derive(Clone)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `rows` [INFO] [stdout] --> src/aoc/grid/mod.rs:49:5 [INFO] [stdout] | [INFO] [stdout] 49 | rows: GrowVec> [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `Grid` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/aoc/grid/mod.rs:46:10 [INFO] [stdout] | [INFO] [stdout] 46 | #[derive(Clone)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/aoc/grid/mod.rs:52:8 [INFO] [stdout] | [INFO] [stdout] 52 | fn new(default: T) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/aoc/lib.rs:1:12 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(trace_macros)] [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `aoc` due to 2 previous errors; 7 warnings emitted [INFO] [stdout] error: aborting due to previous error; 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0554`. [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "de078cac3c83ee525852b93acc71e4d1d313371c2d6dfa0d0a87facbbd35ae11", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "de078cac3c83ee525852b93acc71e4d1d313371c2d6dfa0d0a87facbbd35ae11", kill_on_drop: false }` [INFO] [stdout] de078cac3c83ee525852b93acc71e4d1d313371c2d6dfa0d0a87facbbd35ae11