[INFO] cloning repository https://github.com/mad-s/advent_of_rust_2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mad-s/advent_of_rust_2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmad-s%2Fadvent_of_rust_2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmad-s%2Fadvent_of_rust_2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6fe2f0b7db6d558d7d1174687c54e4396bcfea14
[INFO] building mad-s/advent_of_rust_2020 against master#461e8078010433ff7de2db2aaae8a3cfb0847215 for pr-94962
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmad-s%2Fadvent_of_rust_2020" "/workspace/builds/worker-17/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-17/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mad-s/advent_of_rust_2020 on toolchain 461e8078010433ff7de2db2aaae8a3cfb0847215
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+461e8078010433ff7de2db2aaae8a3cfb0847215" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mad-s/advent_of_rust_2020
[INFO] finished tweaking git repo https://github.com/mad-s/advent_of_rust_2020
[INFO] tweaked toml for git repo https://github.com/mad-s/advent_of_rust_2020 written to /workspace/builds/worker-17/source/Cargo.toml
[INFO] crate git repo https://github.com/mad-s/advent_of_rust_2020 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+461e8078010433ff7de2db2aaae8a3cfb0847215" "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-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+461e8078010433ff7de2db2aaae8a3cfb0847215" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0350957fffd5acf52171f55a93b6c69bb3b6f61ba773110905665fb10dcfb806
[INFO] running `Command { std: "docker" "start" "-a" "0350957fffd5acf52171f55a93b6c69bb3b6f61ba773110905665fb10dcfb806", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0350957fffd5acf52171f55a93b6c69bb3b6f61ba773110905665fb10dcfb806", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0350957fffd5acf52171f55a93b6c69bb3b6f61ba773110905665fb10dcfb806", kill_on_drop: false }`
[INFO] [stdout] 0350957fffd5acf52171f55a93b6c69bb3b6f61ba773110905665fb10dcfb806
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+461e8078010433ff7de2db2aaae8a3cfb0847215" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9cc9d556177c4df1e680f9270dee960632cbfded896e435a0a160eb071718f8a
[INFO] running `Command { std: "docker" "start" "-a" "9cc9d556177c4df1e680f9270dee960632cbfded896e435a0a160eb071718f8a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling advent_of_rust_2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `occurrences`
[INFO] [stdout]   --> src/bin/day2.rs:16:13
[INFO] [stdout]    |
[INFO] [stdout] 16 |         let occurrences = password.chars().filter(|&x| x == letter).count();
[INFO] [stdout]    |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_occurrences`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.13s
[INFO] running `Command { std: "docker" "inspect" "9cc9d556177c4df1e680f9270dee960632cbfded896e435a0a160eb071718f8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9cc9d556177c4df1e680f9270dee960632cbfded896e435a0a160eb071718f8a", kill_on_drop: false }`
[INFO] [stdout] 9cc9d556177c4df1e680f9270dee960632cbfded896e435a0a160eb071718f8a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+461e8078010433ff7de2db2aaae8a3cfb0847215" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0bb6f03cb31987ee495ddc760d6445c90f5465a667e0cd6a79f833c75c8b4be6
[INFO] running `Command { std: "docker" "start" "-a" "0bb6f03cb31987ee495ddc760d6445c90f5465a667e0cd6a79f833c75c8b4be6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling advent_of_rust_2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `occurrences`
[INFO] [stdout]   --> src/bin/day2.rs:16:13
[INFO] [stdout]    |
[INFO] [stdout] 16 |         let occurrences = password.chars().filter(|&x| x == letter).count();
[INFO] [stdout]    |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_occurrences`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.25s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/advent_of_rust_2020-8343175fa8204e96)
[INFO] [stderr]   Executable unittests src/bin/day1.rs (/opt/rustwide/target/debug/deps/day1-c11a25ee0fa236eb)
[INFO] [stderr]   Executable unittests src/bin/day1b.rs (/opt/rustwide/target/debug/deps/day1b-719a35e0bf629db1)
[INFO] [stderr]   Executable unittests src/bin/day2.rs (/opt/rustwide/target/debug/deps/day2-ff8186e0c6aaf7a6)
[INFO] [stderr]   Executable unittests src/bin/day3.rs (/opt/rustwide/target/debug/deps/day3-8e86732a8d73b703)
[INFO] running `Command { std: "docker" "inspect" "0bb6f03cb31987ee495ddc760d6445c90f5465a667e0cd6a79f833c75c8b4be6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bb6f03cb31987ee495ddc760d6445c90f5465a667e0cd6a79f833c75c8b4be6", kill_on_drop: false }`
[INFO] [stdout] 0bb6f03cb31987ee495ddc760d6445c90f5465a667e0cd6a79f833c75c8b4be6