[INFO] cloning repository https://github.com/thfm/timetable
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thfm/timetable" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthfm%2Ftimetable", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthfm%2Ftimetable'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3176d1faa56674a07a90c58b6ebfd3005e86b959
[INFO] testing thfm/timetable against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthfm%2Ftimetable" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/thfm/timetable on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/thfm/timetable
[INFO] finished tweaking git repo https://github.com/thfm/timetable
[INFO] tweaked toml for git repo https://github.com/thfm/timetable written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/thfm/timetable already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7645cf174025832119fdd282f434523756aef3ae3f4ec1f5a57cc0394a2e8bd9
[INFO] running `Command { std: "docker" "start" "-a" "7645cf174025832119fdd282f434523756aef3ae3f4ec1f5a57cc0394a2e8bd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7645cf174025832119fdd282f434523756aef3ae3f4ec1f5a57cc0394a2e8bd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7645cf174025832119fdd282f434523756aef3ae3f4ec1f5a57cc0394a2e8bd9", kill_on_drop: false }`
[INFO] [stdout] 7645cf174025832119fdd282f434523756aef3ae3f4ec1f5a57cc0394a2e8bd9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] efa868796439bdea01319bca3c7683abb50e0e928f6822ee130a8ba21a1efcd7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "efa868796439bdea01319bca3c7683abb50e0e928f6822ee130a8ba21a1efcd7", kill_on_drop: false }`
[INFO] [stderr]    Compiling timetable v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.77s
[INFO] running `Command { std: "docker" "inspect" "efa868796439bdea01319bca3c7683abb50e0e928f6822ee130a8ba21a1efcd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efa868796439bdea01319bca3c7683abb50e0e928f6822ee130a8ba21a1efcd7", kill_on_drop: false }`
[INFO] [stdout] efa868796439bdea01319bca3c7683abb50e0e928f6822ee130a8ba21a1efcd7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fada453ccc20213ee075aeebadb47ceb1434e2836b3902bd20f89efa69681e52
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "fada453ccc20213ee075aeebadb47ceb1434e2836b3902bd20f89efa69681e52", kill_on_drop: false }`
[INFO] [stderr]    Compiling difference v2.0.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling pretty_assertions v0.6.1
[INFO] [stderr]    Compiling timetable v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.64s
[INFO] running `Command { std: "docker" "inspect" "fada453ccc20213ee075aeebadb47ceb1434e2836b3902bd20f89efa69681e52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fada453ccc20213ee075aeebadb47ceb1434e2836b3902bd20f89efa69681e52", kill_on_drop: false }`
[INFO] [stdout] fada453ccc20213ee075aeebadb47ceb1434e2836b3902bd20f89efa69681e52
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 491c2532020afdd7c125f5e1670efbc1c767ea031763bb6aa79f842e9913f46e
[INFO] running `Command { std: "docker" "start" "-a" "491c2532020afdd7c125f5e1670efbc1c767ea031763bb6aa79f842e9913f46e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/timetable-9056e188b2a7a5e7)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test class_formation_tests::no_students_no_classes ... ok
[INFO] [stdout] test class_formation_tests::excess_of_students ... ok
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/timetable-986652b82bc62556)
[INFO] [stdout] test class_formation_tests::no_teachers_no_classes ... ok
[INFO] [stdout] test class_formation_tests::excess_of_teachers ... ok
[INFO] [stdout] test class_formation_tests::students_divide_evenly ... ok
[INFO] [stdout] test class_formation_tests::students_divide_unevenly ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[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] [stderr]    Doc-tests timetable
[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" "491c2532020afdd7c125f5e1670efbc1c767ea031763bb6aa79f842e9913f46e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "491c2532020afdd7c125f5e1670efbc1c767ea031763bb6aa79f842e9913f46e", kill_on_drop: false }`
[INFO] [stdout] 491c2532020afdd7c125f5e1670efbc1c767ea031763bb6aa79f842e9913f46e