[INFO] fetching crate wfcgen 0.1.0...
[INFO] testing wfcgen-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate wfcgen 0.1.0 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate wfcgen 0.1.0 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 crates.io crate wfcgen 0.1.0
[INFO] finished tweaking crates.io crate wfcgen 0.1.0
[INFO] tweaked toml for crates.io crate wfcgen 0.1.0 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate crates.io crate wfcgen 0.1.0 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] [stdout] 1a3ae121a1c59c46c088b42c656c637ecfdaa5f53373cb5d21eb7198e2214aa0
[INFO] running `Command { std: "docker" "start" "-a" "1a3ae121a1c59c46c088b42c656c637ecfdaa5f53373cb5d21eb7198e2214aa0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1a3ae121a1c59c46c088b42c656c637ecfdaa5f53373cb5d21eb7198e2214aa0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a3ae121a1c59c46c088b42c656c637ecfdaa5f53373cb5d21eb7198e2214aa0", kill_on_drop: false }`
[INFO] [stdout] 1a3ae121a1c59c46c088b42c656c637ecfdaa5f53373cb5d21eb7198e2214aa0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] 7edb63700d9de74ad20c34fee08d6ba0d27047bf8da21a39494fcc5936a29b54
[INFO] running `Command { std: "docker" "start" "-a" "7edb63700d9de74ad20c34fee08d6ba0d27047bf8da21a39494fcc5936a29b54", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling cc v1.0.42
[INFO] [stderr]    Compiling autocfg v0.1.6
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]    Compiling nodrop v0.1.13
[INFO] [stderr]    Compiling unicode-width v0.1.6
[INFO] [stderr]    Compiling scopeguard v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.2
[INFO] [stderr]    Compiling regex-syntax v0.6.12
[INFO] [stderr]    Compiling quick-error v1.2.2
[INFO] [stderr]    Compiling bindgen v0.51.0
[INFO] [stderr]    Compiling termcolor v1.0.5
[INFO] [stderr]    Compiling rayon-core v1.6.0
[INFO] [stderr]    Compiling adler32 v1.0.3
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling lzw v0.10.0
[INFO] [stderr]    Compiling either v1.5.2
[INFO] [stderr]    Compiling unicode-segmentation v1.3.0
[INFO] [stderr]    Compiling color_quant v1.0.1
[INFO] [stderr]    Compiling scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling clang-sys v0.28.1
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling memoffset v0.5.1
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling humantime v1.2.0
[INFO] [stderr]    Compiling inflate v0.4.5
[INFO] [stderr]    Compiling gif v0.10.2
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling cmake v0.1.42
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling deflate v0.7.20
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling num_cpus v1.10.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.2
[INFO] [stderr]    Compiling png v0.15.0
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling crossbeam-deque v0.7.1
[INFO] [stderr]    Compiling cexpr v0.3.5
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]    Compiling backtrace v0.3.37
[INFO] [stderr]    Compiling rayon v1.2.0
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling tiff v0.3.1
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling which v2.0.1
[INFO] [stderr]    Compiling proc-macro-error v0.2.6
[INFO] [stderr]    Compiling structopt-derive v0.3.0
[INFO] [stderr]    Compiling jpeg-decoder v0.1.16
[INFO] [stderr]    Compiling image v0.22.1
[INFO] [stderr]    Compiling structopt v0.3.0
[INFO] [stderr]    Compiling fastwfc-sys v0.1.0
[INFO] [stderr]    Compiling fastwfc v0.1.0
[INFO] [stderr]    Compiling wfcgen v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 53.65s
[INFO] running `Command { std: "docker" "inspect" "7edb63700d9de74ad20c34fee08d6ba0d27047bf8da21a39494fcc5936a29b54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7edb63700d9de74ad20c34fee08d6ba0d27047bf8da21a39494fcc5936a29b54", kill_on_drop: false }`
[INFO] [stdout] 7edb63700d9de74ad20c34fee08d6ba0d27047bf8da21a39494fcc5936a29b54
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] a99442731c6e22fbd7314e0d1f1f3f2cb7a2534e6f4f17d0f41c8092f0a50dd8
[INFO] running `Command { std: "docker" "start" "-a" "a99442731c6e22fbd7314e0d1f1f3f2cb7a2534e6f4f17d0f41c8092f0a50dd8", kill_on_drop: false }`
[INFO] [stderr]    Compiling wfcgen v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `Command { std: "docker" "inspect" "a99442731c6e22fbd7314e0d1f1f3f2cb7a2534e6f4f17d0f41c8092f0a50dd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a99442731c6e22fbd7314e0d1f1f3f2cb7a2534e6f4f17d0f41c8092f0a50dd8", kill_on_drop: false }`
[INFO] [stdout] a99442731c6e22fbd7314e0d1f1f3f2cb7a2534e6f4f17d0f41c8092f0a50dd8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] [stdout] b1d9cc11ebb7617cf2885a9c42bdc8e67d2f01d2dfd5bd5f96c05a2fd5ac183f
[INFO] running `Command { std: "docker" "start" "-a" "b1d9cc11ebb7617cf2885a9c42bdc8e67d2f01d2dfd5bd5f96c05a2fd5ac183f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/wfcgen-740ddcb3434891d0)
[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" "b1d9cc11ebb7617cf2885a9c42bdc8e67d2f01d2dfd5bd5f96c05a2fd5ac183f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1d9cc11ebb7617cf2885a9c42bdc8e67d2f01d2dfd5bd5f96c05a2fd5ac183f", kill_on_drop: false }`
[INFO] [stdout] b1d9cc11ebb7617cf2885a9c42bdc8e67d2f01d2dfd5bd5f96c05a2fd5ac183f