[INFO] fetching crate fractal 0.7.1...
[INFO] testing fractal-0.7.1 against 1.59.0 for beta-1.60-1
[INFO] extracting crate fractal 0.7.1 into /workspace/builds/worker-67/source
[INFO] validating manifest of crates.io crate fractal 0.7.1 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fractal 0.7.1
[INFO] finished tweaking crates.io crate fractal 0.7.1
[INFO] tweaked toml for crates.io crate fractal 0.7.1 written to /workspace/builds/worker-67/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cc0ddf0d951701b70dd1250bf0783e15196216aa88e085f2cfb422926a8403eb
[INFO] running `Command { std: "docker" "start" "-a" "cc0ddf0d951701b70dd1250bf0783e15196216aa88e085f2cfb422926a8403eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cc0ddf0d951701b70dd1250bf0783e15196216aa88e085f2cfb422926a8403eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc0ddf0d951701b70dd1250bf0783e15196216aa88e085f2cfb422926a8403eb", kill_on_drop: false }`
[INFO] [stdout] cc0ddf0d951701b70dd1250bf0783e15196216aa88e085f2cfb422926a8403eb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8093f52106ab06ee7981fe53a885e57d35a184c06f229c5965bbb419bab9e5ec
[INFO] running `Command { std: "docker" "start" "-a" "8093f52106ab06ee7981fe53a885e57d35a184c06f229c5965bbb419bab9e5ec", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling random v0.12.2
[INFO] [stderr]    Compiling statistics v0.4.1
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling special v0.8.1
[INFO] [stderr]    Compiling dwt v0.5.2
[INFO] [stderr]    Compiling probability v0.17.0
[INFO] [stderr]    Compiling fractal v0.7.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.38s
[INFO] running `Command { std: "docker" "inspect" "8093f52106ab06ee7981fe53a885e57d35a184c06f229c5965bbb419bab9e5ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8093f52106ab06ee7981fe53a885e57d35a184c06f229c5965bbb419bab9e5ec", kill_on_drop: false }`
[INFO] [stdout] 8093f52106ab06ee7981fe53a885e57d35a184c06f229c5965bbb419bab9e5ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 11c4e68b9c504b5bb85bd7e02c1dfbbecfbed0085b6480d1cde70d391eba4749
[INFO] running `Command { std: "docker" "start" "-a" "11c4e68b9c504b5bb85bd7e02c1dfbbecfbed0085b6480d1cde70d391eba4749", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling assert v0.7.4
[INFO] [stderr]    Compiling fractal v0.7.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.37s
[INFO] running `Command { std: "docker" "inspect" "11c4e68b9c504b5bb85bd7e02c1dfbbecfbed0085b6480d1cde70d391eba4749", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11c4e68b9c504b5bb85bd7e02c1dfbbecfbed0085b6480d1cde70d391eba4749", kill_on_drop: false }`
[INFO] [stdout] 11c4e68b9c504b5bb85bd7e02c1dfbbecfbed0085b6480d1cde70d391eba4749
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 625d7ce8c4f4cb234af6720a0f83778997237720ee9c3130e5c96bdbf9dea0a2
[INFO] running `Command { std: "docker" "start" "-a" "625d7ce8c4f4cb234af6720a0f83778997237720ee9c3130e5c96bdbf9dea0a2", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/fractal-38f66cbae5925916)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::new ... ok
[INFO] [stdout] test tests::sample ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests fractal
[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" "625d7ce8c4f4cb234af6720a0f83778997237720ee9c3130e5c96bdbf9dea0a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "625d7ce8c4f4cb234af6720a0f83778997237720ee9c3130e5c96bdbf9dea0a2", kill_on_drop: false }`
[INFO] [stdout] 625d7ce8c4f4cb234af6720a0f83778997237720ee9c3130e5c96bdbf9dea0a2