[INFO] cloning repository https://github.com/weirdan/rust-knight-tour
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/weirdan/rust-knight-tour" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fweirdan%2Frust-knight-tour", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fweirdan%2Frust-knight-tour'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a627aadcf9767a8ab59070953cfc16fbac12bae1
[INFO] testing weirdan/rust-knight-tour against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fweirdan%2Frust-knight-tour" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/weirdan/rust-knight-tour on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/weirdan/rust-knight-tour
[INFO] finished tweaking git repo https://github.com/weirdan/rust-knight-tour
[INFO] tweaked toml for git repo https://github.com/weirdan/rust-knight-tour written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/weirdan/rust-knight-tour already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] daf4d02f22c9725c5814852bcfc5b2cdd31f847a622a6d4eee4d9c331110dab2
[INFO] running `Command { std: "docker" "start" "-a" "daf4d02f22c9725c5814852bcfc5b2cdd31f847a622a6d4eee4d9c331110dab2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "daf4d02f22c9725c5814852bcfc5b2cdd31f847a622a6d4eee4d9c331110dab2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "daf4d02f22c9725c5814852bcfc5b2cdd31f847a622a6d4eee4d9c331110dab2", kill_on_drop: false }`
[INFO] [stdout] daf4d02f22c9725c5814852bcfc5b2cdd31f847a622a6d4eee4d9c331110dab2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3cb9da0805dc47f01d0855097f28823b85a4402888db721eab47585d3bcdf13e
[INFO] running `Command { std: "docker" "start" "-a" "3cb9da0805dc47f01d0855097f28823b85a4402888db721eab47585d3bcdf13e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling num_cpus v1.10.1
[INFO] [stderr]    Compiling threadpool v1.7.1
[INFO] [stderr]    Compiling knights-tour v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.74s
[INFO] running `Command { std: "docker" "inspect" "3cb9da0805dc47f01d0855097f28823b85a4402888db721eab47585d3bcdf13e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cb9da0805dc47f01d0855097f28823b85a4402888db721eab47585d3bcdf13e", kill_on_drop: false }`
[INFO] [stdout] 3cb9da0805dc47f01d0855097f28823b85a4402888db721eab47585d3bcdf13e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c936717c00fdff39d559a0eb4ab20163f27134008e4658e86ecb76e87b5d280d
[INFO] running `Command { std: "docker" "start" "-a" "c936717c00fdff39d559a0eb4ab20163f27134008e4658e86ecb76e87b5d280d", kill_on_drop: false }`
[INFO] [stderr]    Compiling knights-tour v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `Command { std: "docker" "inspect" "c936717c00fdff39d559a0eb4ab20163f27134008e4658e86ecb76e87b5d280d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c936717c00fdff39d559a0eb4ab20163f27134008e4658e86ecb76e87b5d280d", kill_on_drop: false }`
[INFO] [stdout] c936717c00fdff39d559a0eb4ab20163f27134008e4658e86ecb76e87b5d280d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 00ede19304983e1a38cf3a429890737f57e2ff21ebffa3eb06e4543b48fdb667
[INFO] running `Command { std: "docker" "start" "-a" "00ede19304983e1a38cf3a429890737f57e2ff21ebffa3eb06e4543b48fdb667", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/knights_tour-08468d1b9b5c6376)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test tests::knight_has_8_moves ... ok
[INFO] [stdout] test tests::knight_ignores_moves_to_visited_squares ... ok
[INFO] [stdout] test tests::knight_in_top_left_corner_has_2_moves ... ok
[INFO] [stdout] test tests::knight_cannot_tour_on_3x3_board ... ok
[INFO] [stdout] test tests::knight_can_tour_on_6x6_board ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "00ede19304983e1a38cf3a429890737f57e2ff21ebffa3eb06e4543b48fdb667", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00ede19304983e1a38cf3a429890737f57e2ff21ebffa3eb06e4543b48fdb667", kill_on_drop: false }`
[INFO] [stdout] 00ede19304983e1a38cf3a429890737f57e2ff21ebffa3eb06e4543b48fdb667