[INFO] cloning repository https://github.com/kevins19/fifteenpuzzle
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kevins19/fifteenpuzzle" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkevins19%2Ffifteenpuzzle", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkevins19%2Ffifteenpuzzle'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c6ac08a940fa9f3428f6b995392fb069a6ce1046
[INFO] testing kevins19/fifteenpuzzle against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkevins19%2Ffifteenpuzzle" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kevins19/fifteenpuzzle
[INFO] finished tweaking git repo https://github.com/kevins19/fifteenpuzzle
[INFO] tweaked toml for git repo https://github.com/kevins19/fifteenpuzzle written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kevins19/fifteenpuzzle on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kevins19/fifteenpuzzle already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ppv-lite86 v0.2.17
[INFO] [stderr]   Downloaded getrandom v0.2.10
[INFO] [stderr]   Downloaded libc v0.2.149
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7080ffef8f4ffda48af1061d215814129c736c11475c3c876f499e8e4d01f8db
[INFO] running `Command { std: "docker" "start" "-a" "7080ffef8f4ffda48af1061d215814129c736c11475c3c876f499e8e4d01f8db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7080ffef8f4ffda48af1061d215814129c736c11475c3c876f499e8e4d01f8db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7080ffef8f4ffda48af1061d215814129c736c11475c3c876f499e8e4d01f8db", kill_on_drop: false }`
[INFO] [stdout] 7080ffef8f4ffda48af1061d215814129c736c11475c3c876f499e8e4d01f8db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c6c7a46a79be017696a47c96f7b53c5cf5f90427681600096c247a69cefc9d12
[INFO] running `Command { std: "docker" "start" "-a" "c6c7a46a79be017696a47c96f7b53c5cf5f90427681600096c247a69cefc9d12", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling getrandom v0.2.10
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling fifteenpuzzle v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: methods `set_board`, `is_solvable`, and `get_board` are never used
[INFO] [stdout]    --> src/board.rs:53:12
[INFO] [stdout]     |
[INFO] [stdout]  10 | impl Board{
[INFO] [stdout]     | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  53 |     pub fn set_board(&mut self, b : [[i32;4];4]){
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  56 |     pub fn is_solvable(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 133 |     pub fn get_board(&self) -> [[i32;4];4]{
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.36s
[INFO] running `Command { std: "docker" "inspect" "c6c7a46a79be017696a47c96f7b53c5cf5f90427681600096c247a69cefc9d12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6c7a46a79be017696a47c96f7b53c5cf5f90427681600096c247a69cefc9d12", kill_on_drop: false }`
[INFO] [stdout] c6c7a46a79be017696a47c96f7b53c5cf5f90427681600096c247a69cefc9d12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e19868138c5d6500b9de115da012d6783b8d6ce9017107e2e60e3476253bde7e
[INFO] running `Command { std: "docker" "start" "-a" "e19868138c5d6500b9de115da012d6783b8d6ce9017107e2e60e3476253bde7e", kill_on_drop: false }`
[INFO] [stderr]    Compiling fifteenpuzzle v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "e19868138c5d6500b9de115da012d6783b8d6ce9017107e2e60e3476253bde7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e19868138c5d6500b9de115da012d6783b8d6ce9017107e2e60e3476253bde7e", kill_on_drop: false }`
[INFO] [stdout] e19868138c5d6500b9de115da012d6783b8d6ce9017107e2e60e3476253bde7e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6665e397c16af328336595d6e0d987bb4af353cb45cbc5034fc7c0c6d5b666ca
[INFO] running `Command { std: "docker" "start" "-a" "6665e397c16af328336595d6e0d987bb4af353cb45cbc5034fc7c0c6d5b666ca", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/fifteenpuzzle-d93d5939b9141e22)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test tests::can_find_win ... ok
[INFO] [stdout] test tests::maintains_valid_configuration ... ok
[INFO] [stdout] test tests::reaches_state ... ok
[INFO] [stdout] test tests::maintains_configuration_under_repeated ... ok
[INFO] [stdout] test tests::can_find_loss ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6665e397c16af328336595d6e0d987bb4af353cb45cbc5034fc7c0c6d5b666ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6665e397c16af328336595d6e0d987bb4af353cb45cbc5034fc7c0c6d5b666ca", kill_on_drop: false }`
[INFO] [stdout] 6665e397c16af328336595d6e0d987bb4af353cb45cbc5034fc7c0c6d5b666ca