[INFO] cloning repository https://github.com/Tomboyo/mastermind-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Tomboyo/mastermind-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTomboyo%2Fmastermind-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTomboyo%2Fmastermind-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 661e9094d94f411f7a48668425128f79ab36dd74
[INFO] testing Tomboyo/mastermind-rust against try#d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2 for pr-86479
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTomboyo%2Fmastermind-rust" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Tomboyo/mastermind-rust on toolchain d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Tomboyo/mastermind-rust
[INFO] finished tweaking git repo https://github.com/Tomboyo/mastermind-rust
[INFO] tweaked toml for git repo https://github.com/Tomboyo/mastermind-rust written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/Tomboyo/mastermind-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded winapi v0.3.8
[INFO] [stderr]   Downloaded hermit-abi v0.1.8
[INFO] [stderr]   Downloaded maplit v1.0.2
[INFO] [stderr]   Downloaded itertools v0.9.0
[INFO] [stderr]   Downloaded num-traits v0.2.11
[INFO] [stderr]   Downloaded libc v0.2.67
[INFO] [stderr]   Downloaded unicode-width v0.1.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4309ad8015bae4c300ddaf5c4c57e8c380cbdbacc30fdd3c45466bdff0b43a44
[INFO] running `Command { std: "docker" "start" "-a" "4309ad8015bae4c300ddaf5c4c57e8c380cbdbacc30fdd3c45466bdff0b43a44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4309ad8015bae4c300ddaf5c4c57e8c380cbdbacc30fdd3c45466bdff0b43a44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4309ad8015bae4c300ddaf5c4c57e8c380cbdbacc30fdd3c45466bdff0b43a44", kill_on_drop: false }`
[INFO] [stdout] 4309ad8015bae4c300ddaf5c4c57e8c380cbdbacc30fdd3c45466bdff0b43a44
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3906ee89e153c621cb78837bdaedf4c2478c29602e3ce06518e2acb24916233d
[INFO] running `Command { std: "docker" "start" "-a" "3906ee89e153c621cb78837bdaedf4c2478c29602e3ce06518e2acb24916233d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling mastermind v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.29s
[INFO] running `Command { std: "docker" "inspect" "3906ee89e153c621cb78837bdaedf4c2478c29602e3ce06518e2acb24916233d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3906ee89e153c621cb78837bdaedf4c2478c29602e3ce06518e2acb24916233d", kill_on_drop: false }`
[INFO] [stdout] 3906ee89e153c621cb78837bdaedf4c2478c29602e3ce06518e2acb24916233d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 786e016806d89fbec09907fdfaf3554aa0a76b8055a7f3aaecc12a0a60d88fda
[INFO] running `Command { std: "docker" "start" "-a" "786e016806d89fbec09907fdfaf3554aa0a76b8055a7f3aaecc12a0a60d88fda", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling mastermind v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.36s
[INFO] running `Command { std: "docker" "inspect" "786e016806d89fbec09907fdfaf3554aa0a76b8055a7f3aaecc12a0a60d88fda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "786e016806d89fbec09907fdfaf3554aa0a76b8055a7f3aaecc12a0a60d88fda", kill_on_drop: false }`
[INFO] [stdout] 786e016806d89fbec09907fdfaf3554aa0a76b8055a7f3aaecc12a0a60d88fda
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 29042e74a661e090bd0309ee984484ac61fbeb5eec7ad1ba98d1712ce93044d7
[INFO] running `Command { std: "docker" "start" "-a" "29042e74a661e090bd0309ee984484ac61fbeb5eec7ad1ba98d1712ce93044d7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.40s
[INFO] [stdout] running 20 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mastermind-46a03a70d0806cae)
[INFO] [stdout] test code::tests::test_compare_all_correct ... ok
[INFO] [stdout] test code::tests::test_compare_misplaced_digits ... ok
[INFO] [stdout] test code::tests::test_compare_none_correct ... ok
[INFO] [stdout] test tree::morphology::tests::test_isomorph_cache_is_new_morph ... ok
[INFO] [stdout] test tree::rank::tests::test_by_depth_minimum_value ... ok
[INFO] [stdout] test tree::tests::test_generate ... ok
[INFO] [stdout] test tree::tests::test_generate_exhaustively_2_2 ... ok
[INFO] [stdout] test tree::morphology::tests::test_answers_by_response ... ok
[INFO] [stdout] test code::tests::test_compare_precedence ... ok
[INFO] [stdout] test code::tests::test_compare_misplace_exhaustion ... ok
[INFO] [stdout] test tree::tests::test_generate_exhaustively_2_3 ... ok
[INFO] [stdout] test tree::rank::tests::test_by_depth ... ok
[INFO] [stdout] test code::tests::test_universe ... ok
[INFO] [stdout] test tree::tests::test_generate_exhaustively_3_2 ... ok
[INFO] [stdout] test tree::tests::test_generate_exhaustively_4_2 ... ok
[INFO] [stdout] test tree::tests::test_generate_exhaustively_3_3 ... ok
[INFO] [stdout] test tree::tests::test_generate_exhaustively_2_4 ... ok
[INFO] [stdout] test tree::tests::test_generate_exhaustively_5_2 ... ok
[INFO] [stdout] test tree::tests::test_generate_exhaustively_4_3 ... ok
[INFO] [stdout] test tree::tests::test_generate_exhaustively_3_4 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 20 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.70s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "29042e74a661e090bd0309ee984484ac61fbeb5eec7ad1ba98d1712ce93044d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29042e74a661e090bd0309ee984484ac61fbeb5eec7ad1ba98d1712ce93044d7", kill_on_drop: false }`
[INFO] [stdout] 29042e74a661e090bd0309ee984484ac61fbeb5eec7ad1ba98d1712ce93044d7