[INFO] cloning repository https://github.com/rwalkr/advent_of_code_2021
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rwalkr/advent_of_code_2021" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frwalkr%2Fadvent_of_code_2021", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frwalkr%2Fadvent_of_code_2021'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 63aecfaae3bfe1eb12c953b4205542ed779b2dff
[INFO] testing rwalkr/advent_of_code_2021 against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frwalkr%2Fadvent_of_code_2021" "/workspace/builds/worker-94/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-94/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rwalkr/advent_of_code_2021 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/rwalkr/advent_of_code_2021
[INFO] finished tweaking git repo https://github.com/rwalkr/advent_of_code_2021
[INFO] tweaked toml for git repo https://github.com/rwalkr/advent_of_code_2021 written to /workspace/builds/worker-94/source/Cargo.toml
[INFO] crate git repo https://github.com/rwalkr/advent_of_code_2021 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-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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] fadd729649020b03f0d8fda74336446bb0b9d4ead0f296c4fd121761d07bb643
[INFO] running `Command { std: "docker" "start" "-a" "fadd729649020b03f0d8fda74336446bb0b9d4ead0f296c4fd121761d07bb643", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fadd729649020b03f0d8fda74336446bb0b9d4ead0f296c4fd121761d07bb643", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fadd729649020b03f0d8fda74336446bb0b9d4ead0f296c4fd121761d07bb643", kill_on_drop: false }`
[INFO] [stdout] fadd729649020b03f0d8fda74336446bb0b9d4ead0f296c4fd121761d07bb643
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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] abd2b9e9c40788cd07cb07afd929dd4882461aaf73fe8d8390d7132fe3c616cf
[INFO] running `Command { std: "docker" "start" "-a" "abd2b9e9c40788cd07cb07afd929dd4882461aaf73fe8d8390d7132fe3c616cf", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling structopt v0.3.25
[INFO] [stderr]    Compiling advent_of_code_2021 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/bin/day_04.rs:99:17
[INFO] [stdout]    |
[INFO] [stdout] 99 |                 &mut boards_played.remove(bn);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 99 |                 let _ = &mut boards_played.remove(bn);
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 21s
[INFO] running `Command { std: "docker" "inspect" "abd2b9e9c40788cd07cb07afd929dd4882461aaf73fe8d8390d7132fe3c616cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abd2b9e9c40788cd07cb07afd929dd4882461aaf73fe8d8390d7132fe3c616cf", kill_on_drop: false }`
[INFO] [stdout] abd2b9e9c40788cd07cb07afd929dd4882461aaf73fe8d8390d7132fe3c616cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cd2bedc3e0f809b7abe87f1639b7e32542ba1837b67767182be22e4fb421ade1
[INFO] running `Command { std: "docker" "start" "-a" "cd2bedc3e0f809b7abe87f1639b7e32542ba1837b67767182be22e4fb421ade1", kill_on_drop: false }`
[INFO] [stderr]    Compiling advent_of_code_2021 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/bin/day_04.rs:99:17
[INFO] [stdout]    |
[INFO] [stdout] 99 |                 &mut boards_played.remove(bn);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 99 |                 let _ = &mut boards_played.remove(bn);
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.97s
[INFO] running `Command { std: "docker" "inspect" "cd2bedc3e0f809b7abe87f1639b7e32542ba1837b67767182be22e4fb421ade1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd2bedc3e0f809b7abe87f1639b7e32542ba1837b67767182be22e4fb421ade1", kill_on_drop: false }`
[INFO] [stdout] cd2bedc3e0f809b7abe87f1639b7e32542ba1837b67767182be22e4fb421ade1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c23d3a9b212afcfa91d075de892a948896399f44fb91e3294a3565ce9ed0a9d4
[INFO] running `Command { std: "docker" "start" "-a" "c23d3a9b212afcfa91d075de892a948896399f44fb91e3294a3565ce9ed0a9d4", kill_on_drop: false }`
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]   --> src/bin/day_04.rs:99:17
[INFO] [stderr]    |
[INFO] [stderr] 99 |                 &mut boards_played.remove(bn);
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 99 |                 let _ = &mut boards_played.remove(bn);
[INFO] [stderr]    |                 +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `advent_of_code_2021` (bin "day_04" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/advent_of_code_2021-e302b40b76e23d13)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/day_01-7999976d39d1120f)
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test::test_part_1 ... ok
[INFO] [stdout] test test::test_part_2 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/day_02-a45836f93d9e7e74)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test::test_part_1 ... ok
[INFO] [stdout] test test::test_part_2 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/day_03-4f826243bb490e26)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test::test_part_1 ... ok
[INFO] [stdout] test test::test_part_2 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/day_04-983077c70b1e59e8)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test test::test_nums_parse ... ok
[INFO] [stdout] test test::test_parse ... ok
[INFO] [stdout] test test::test_part_1 ... ok
[INFO] [stdout] test test::test_part_2 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/day_05-916a602e3f777b4f)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test test::test_parse ... ok
[INFO] [stdout] test test::test_part_1 ... ok
[INFO] [stdout] test test::test_part_2 ... ok
[INFO] [stdout] test test::test_part_1_real ... ok
[INFO] [stdout] test test::test_part_2_real ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.09s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/day_06-96f319248287f360)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test test::test_parse ... ok
[INFO] [stdout] test test::test_part_1 ... ok
[INFO] [stdout] test test::test_part_1_18days ... ok
[INFO] [stdout] test test::test_part_2 ... ok
[INFO] [stdout] test test::test_part_2_real ... ok
[INFO] [stdout] test test::test_part_1_real ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/day_07-30939edfbf86609d)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test test::test_parse ... ok
[INFO] [stdout] test test::test_part_1 ... ok
[INFO] [stdout] test test::test_part_2 ... ok
[INFO] [stdout] test test::test_part_1_real ... ok
[INFO] [stdout] test test::test_part_2_real ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.19s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/day_08-7e2a78503bdfcb0d)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test test::test_part_1 ... ok
[INFO] [stdout] test test::test_parse ... ok
[INFO] [stdout] test test::test_part_1_real ... ok
[INFO] [stdout] test test::test_part_2 ... ok
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/day_09-6f39439a4474c55e)
[INFO] [stdout] test test::test_part_2_real ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.08s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test test::test_parse ... ok
[INFO] [stdout] test test::test_part_1 ... ok
[INFO] [stdout] test test::test_part_2 ... ok
[INFO] [stderr]    Doc-tests advent_of_code_2021
[INFO] [stdout] test test::test_part_1_real ... ok
[INFO] [stdout] test test::test_part_2_real ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c23d3a9b212afcfa91d075de892a948896399f44fb91e3294a3565ce9ed0a9d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c23d3a9b212afcfa91d075de892a948896399f44fb91e3294a3565ce9ed0a9d4", kill_on_drop: false }`
[INFO] [stdout] c23d3a9b212afcfa91d075de892a948896399f44fb91e3294a3565ce9ed0a9d4