[INFO] updating cached repository https://github.com/nrxus/advent_2017
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4abb77f550878b32611a23958c89ad9c31662b8d
[INFO] testing nrxus/advent_2017 against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnrxus%2Fadvent_2017" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nrxus/advent_2017 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/nrxus/advent_2017
[INFO] finished tweaking git repo https://github.com/nrxus/advent_2017
[INFO] tweaked toml for git repo https://github.com/nrxus/advent_2017 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/nrxus/advent_2017 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cd8c9406f0b147d0cac1ed2b0eb4ba875624e2474733105d3bedc0458134124c
[INFO] running `"docker" "start" "-a" "cd8c9406f0b147d0cac1ed2b0eb4ba875624e2474733105d3bedc0458134124c"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling advent_2017 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `input`
[INFO] [stderr]   --> src/solvers/three.rs:21:10
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub fn b(input: u32) -> u32 {
[INFO] [stderr]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `"docker" "inspect" "cd8c9406f0b147d0cac1ed2b0eb4ba875624e2474733105d3bedc0458134124c"`
[INFO] running `"docker" "rm" "-f" "cd8c9406f0b147d0cac1ed2b0eb4ba875624e2474733105d3bedc0458134124c"`
[INFO] [stdout] cd8c9406f0b147d0cac1ed2b0eb4ba875624e2474733105d3bedc0458134124c
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 12030bef8f628be3219c528349d5b48b1e4f9740e84e34feafa322ae63e082e7
[INFO] running `"docker" "start" "-a" "12030bef8f628be3219c528349d5b48b1e4f9740e84e34feafa322ae63e082e7"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling advent_2017 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `input`
[INFO] [stderr]   --> src/solvers/three.rs:21:10
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub fn b(input: u32) -> u32 {
[INFO] [stderr]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.07s
[INFO] running `"docker" "inspect" "12030bef8f628be3219c528349d5b48b1e4f9740e84e34feafa322ae63e082e7"`
[INFO] running `"docker" "rm" "-f" "12030bef8f628be3219c528349d5b48b1e4f9740e84e34feafa322ae63e082e7"`
[INFO] [stdout] 12030bef8f628be3219c528349d5b48b1e4f9740e84e34feafa322ae63e082e7
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 20257cb8c9040f733287087c197e5d4b5c70b8b6f3ab4899cafc12126c9c71a3
[INFO] running `"docker" "start" "-a" "20257cb8c9040f733287087c197e5d4b5c70b8b6f3ab4899cafc12126c9c71a3"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unused variable: `input`
[INFO] [stdout] 
[INFO] [stderr]   --> src/solvers/three.rs:21:10
[INFO] [stdout] running 12 tests
[INFO] [stderr]    |
[INFO] [stdout] test solvers::one::test::a_consecutive ... ok
[INFO] [stderr] 21 | pub fn b(input: u32) -> u32 {
[INFO] [stdout] test solvers::three::test::test_a ... ok
[INFO] [stderr]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] test solvers::one::test::b_loops ... ok
[INFO] [stderr]    |
[INFO] [stdout] test solvers::one::test::b_perfect ... ok
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] test solvers::one::test::b_other ... ok
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/advent_2017-eb2edd41f2e9aa5b
[INFO] [stdout] test solvers::one::test::b_all ... ok
[INFO] [stdout] test solvers::one::test::a_none ... ok
[INFO] [stdout] test solvers::one::test::a_all ... ok
[INFO] [stdout] test solvers::one::test::b_none ... ok
[INFO] [stdout] test solvers::two::test::test_a ... ok
[INFO] [stdout] test solvers::one::test::a_ends ... ok
[INFO] [stdout] test solvers::two::test::test_b ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "20257cb8c9040f733287087c197e5d4b5c70b8b6f3ab4899cafc12126c9c71a3"`
[INFO] running `"docker" "rm" "-f" "20257cb8c9040f733287087c197e5d4b5c70b8b6f3ab4899cafc12126c9c71a3"`
[INFO] [stdout] 20257cb8c9040f733287087c197e5d4b5c70b8b6f3ab4899cafc12126c9c71a3