[INFO] cloning repository https://github.com/zack-hill/advent-of-code [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zack-hill/advent-of-code" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzack-hill%2Fadvent-of-code", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzack-hill%2Fadvent-of-code'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b7af5c74fe726f601c8b61519794678d5d888ae6 [INFO] testing zack-hill/advent-of-code against 1.59.0 for beta-1.60-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzack-hill%2Fadvent-of-code" "/workspace/builds/worker-15/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/zack-hill/advent-of-code on toolchain 1.59.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/zack-hill/advent-of-code [INFO] finished tweaking git repo https://github.com/zack-hill/advent-of-code [INFO] tweaked toml for git repo https://github.com/zack-hill/advent-of-code written to /workspace/builds/worker-15/source/Cargo.toml [INFO] crate git repo https://github.com/zack-hill/advent-of-code already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ba4ea07ab8c69cdb68e303c8cf6d4ada3c857b97093e02f73b15a359403d51f3 [INFO] running `Command { std: "docker" "start" "-a" "ba4ea07ab8c69cdb68e303c8cf6d4ada3c857b97093e02f73b15a359403d51f3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ba4ea07ab8c69cdb68e303c8cf6d4ada3c857b97093e02f73b15a359403d51f3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ba4ea07ab8c69cdb68e303c8cf6d4ada3c857b97093e02f73b15a359403d51f3", kill_on_drop: false }` [INFO] [stdout] ba4ea07ab8c69cdb68e303c8cf6d4ada3c857b97093e02f73b15a359403d51f3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a0dcadfc878dc838c5388ba8b0e5225084891283b2803bb78faa03ff5a4b4aba [INFO] running `Command { std: "docker" "start" "-a" "a0dcadfc878dc838c5388ba8b0e5225084891283b2803bb78faa03ff5a4b4aba", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling libc v0.2.112 [INFO] [stderr] Compiling lexical-core v0.7.6 [INFO] [stderr] Compiling arrayvec v0.5.2 [INFO] [stderr] Compiling nom v5.1.2 [INFO] [stderr] Compiling itertools v0.9.0 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling colored v2.0.0 [INFO] [stderr] Compiling advent-of-code v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: cannot borrow `possible_ingredients_map` as mutable because it is also borrowed as immutable [INFO] [stdout] --> src/2020/day_21.rs:73:13 [INFO] [stdout] | [INFO] [stdout] 72 | let possible_ingredients = possible_ingredients_map.get(allergen.as_str()).unwrap(); [INFO] [stdout] | ----------------------------------------------- immutable borrow occurs here [INFO] [stdout] 73 | / possible_ingredients_map.insert( [INFO] [stdout] 74 | | allergen, [INFO] [stdout] 75 | | possible_ingredients [INFO] [stdout] | |_________________- [INFO] [stdout] 76 | || .intersection(&food.ingredients) [INFO] [stdout] | ||____________________________________________________- immutable borrow later used here [INFO] [stdout] 77 | | .cloned() [INFO] [stdout] 78 | | .collect(), [INFO] [stdout] 79 | | ); [INFO] [stdout] | |_____________^ mutable borrow occurs here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default [INFO] [stdout] = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future [INFO] [stdout] = note: for more information, see issue #59159 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `rotate_ccw` [INFO] [stdout] --> src/2020/day_20.rs:155:8 [INFO] [stdout] | [INFO] [stdout] 155 | fn rotate_ccw(&mut self) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `print_grid` [INFO] [stdout] --> src/2021/day_11.rs:103:8 [INFO] [stdout] | [INFO] [stdout] 103 | pub fn print_grid(grid: &Grid) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/main.rs:1:12 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(drain_filter)] [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error; 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0554`. [INFO] [stdout] [INFO] [stderr] error: could not compile `advent-of-code` due to 2 previous errors; 3 warnings emitted [INFO] running `Command { std: "docker" "inspect" "a0dcadfc878dc838c5388ba8b0e5225084891283b2803bb78faa03ff5a4b4aba", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a0dcadfc878dc838c5388ba8b0e5225084891283b2803bb78faa03ff5a4b4aba", kill_on_drop: false }` [INFO] [stdout] a0dcadfc878dc838c5388ba8b0e5225084891283b2803bb78faa03ff5a4b4aba