[INFO] cloning repository https://github.com/skrobchik/rust-15-puzzle
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/skrobchik/rust-15-puzzle" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskrobchik%2Frust-15-puzzle", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskrobchik%2Frust-15-puzzle'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ff62ee1c742c893ee44109bb883141455fd0e399
[INFO] testing skrobchik/rust-15-puzzle against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskrobchik%2Frust-15-puzzle" "/workspace/builds/worker-72/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-72/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/skrobchik/rust-15-puzzle on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/skrobchik/rust-15-puzzle
[INFO] finished tweaking git repo https://github.com/skrobchik/rust-15-puzzle
[INFO] tweaked toml for git repo https://github.com/skrobchik/rust-15-puzzle written to /workspace/builds/worker-72/source/Cargo.toml
[INFO] crate git repo https://github.com/skrobchik/rust-15-puzzle already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded strum_macros v0.15.0
[INFO] [stderr]   Downloaded strum v0.15.0
[INFO] [stderr]   Downloaded pathfinding v1.1.12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2e1ff6211e094f5038e3f416ef068aae79a2b82b315e7fce5713f8d7dd6e20f7
[INFO] running `Command { std: "docker" "start" "-a" "2e1ff6211e094f5038e3f416ef068aae79a2b82b315e7fce5713f8d7dd6e20f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2e1ff6211e094f5038e3f416ef068aae79a2b82b315e7fce5713f8d7dd6e20f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e1ff6211e094f5038e3f416ef068aae79a2b82b315e7fce5713f8d7dd6e20f7", kill_on_drop: false }`
[INFO] [stdout] 2e1ff6211e094f5038e3f416ef068aae79a2b82b315e7fce5713f8d7dd6e20f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d0b36e7d92c493349dda14f1a490b26120c1fda49a7af6ceec2432ad33306eea
[INFO] running `Command { std: "docker" "start" "-a" "d0b36e7d92c493349dda14f1a490b26120c1fda49a7af6ceec2432ad33306eea", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling getrandom v0.1.12
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling autocfg v0.1.4
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.5
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]    Compiling unicode-segmentation v1.3.0
[INFO] [stderr]    Compiling either v1.5.2
[INFO] [stderr]    Compiling fixedbitset v0.1.9
[INFO] [stderr]    Compiling indexmap v1.0.2
[INFO] [stderr]    Compiling strum v0.15.0
[INFO] [stderr]    Compiling itertools v0.8.0
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling c2-chacha v0.2.2
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand v0.7.2
[INFO] [stderr]    Compiling pathfinding v1.1.12
[INFO] [stderr]    Compiling strum_macros v0.15.0
[INFO] [stderr]    Compiling rust-15-puzzle v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.46s
[INFO] running `Command { std: "docker" "inspect" "d0b36e7d92c493349dda14f1a490b26120c1fda49a7af6ceec2432ad33306eea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0b36e7d92c493349dda14f1a490b26120c1fda49a7af6ceec2432ad33306eea", kill_on_drop: false }`
[INFO] [stdout] d0b36e7d92c493349dda14f1a490b26120c1fda49a7af6ceec2432ad33306eea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5b0efcacd52116d323da7ac1f286659a13381bffa80e16af92528cb203204d3f
[INFO] running `Command { std: "docker" "start" "-a" "5b0efcacd52116d323da7ac1f286659a13381bffa80e16af92528cb203204d3f", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-15-puzzle v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `Command { std: "docker" "inspect" "5b0efcacd52116d323da7ac1f286659a13381bffa80e16af92528cb203204d3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b0efcacd52116d323da7ac1f286659a13381bffa80e16af92528cb203204d3f", kill_on_drop: false }`
[INFO] [stdout] 5b0efcacd52116d323da7ac1f286659a13381bffa80e16af92528cb203204d3f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d7b0bfff64dcf6dc61b47c33b5d9d2e93d2fb1bd49bfeab98ab881191d0a8727
[INFO] running `Command { std: "docker" "start" "-a" "d7b0bfff64dcf6dc61b47c33b5d9d2e93d2fb1bd49bfeab98ab881191d0a8727", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_15_puzzle-0078a84b9e92ef2f)
[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" "d7b0bfff64dcf6dc61b47c33b5d9d2e93d2fb1bd49bfeab98ab881191d0a8727", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7b0bfff64dcf6dc61b47c33b5d9d2e93d2fb1bd49bfeab98ab881191d0a8727", kill_on_drop: false }`
[INFO] [stdout] d7b0bfff64dcf6dc61b47c33b5d9d2e93d2fb1bd49bfeab98ab881191d0a8727