[INFO] fetching crate flipacoin 0.1.0...
[INFO] testing flipacoin-0.1.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate flipacoin 0.1.0 into /workspace/builds/worker-101/source
[INFO] validating manifest of crates.io crate flipacoin 0.1.0 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 flipacoin 0.1.0
[INFO] finished tweaking crates.io crate flipacoin 0.1.0
[INFO] tweaked toml for crates.io crate flipacoin 0.1.0 written to /workspace/builds/worker-101/source/Cargo.toml
[INFO] crate crates.io crate flipacoin 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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] c919bea331726e034385f08814579c9c36de538a5839d52890090b89f3250246
[INFO] running `Command { std: "docker" "start" "-a" "c919bea331726e034385f08814579c9c36de538a5839d52890090b89f3250246", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c919bea331726e034385f08814579c9c36de538a5839d52890090b89f3250246", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c919bea331726e034385f08814579c9c36de538a5839d52890090b89f3250246", kill_on_drop: false }`
[INFO] [stdout] c919bea331726e034385f08814579c9c36de538a5839d52890090b89f3250246
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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] 57e147dd6d3655799549d035b001e1924cdc5541bcd5aa81b080c42db56c44d0
[INFO] running `Command { std: "docker" "start" "-a" "57e147dd6d3655799549d035b001e1924cdc5541bcd5aa81b080c42db56c44d0", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling flipacoin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.24s
[INFO] running `Command { std: "docker" "inspect" "57e147dd6d3655799549d035b001e1924cdc5541bcd5aa81b080c42db56c44d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57e147dd6d3655799549d035b001e1924cdc5541bcd5aa81b080c42db56c44d0", kill_on_drop: false }`
[INFO] [stdout] 57e147dd6d3655799549d035b001e1924cdc5541bcd5aa81b080c42db56c44d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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] 3cf6845443272c82ab5d3fc7dad2c8228b580a530f32de6819c71f24f26c73bf
[INFO] running `Command { std: "docker" "start" "-a" "3cf6845443272c82ab5d3fc7dad2c8228b580a530f32de6819c71f24f26c73bf", kill_on_drop: false }`
[INFO] [stderr]    Compiling flipacoin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `Command { std: "docker" "inspect" "3cf6845443272c82ab5d3fc7dad2c8228b580a530f32de6819c71f24f26c73bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cf6845443272c82ab5d3fc7dad2c8228b580a530f32de6819c71f24f26c73bf", kill_on_drop: false }`
[INFO] [stdout] 3cf6845443272c82ab5d3fc7dad2c8228b580a530f32de6819c71f24f26c73bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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] 013a379418fbc3837334d1a70f55c87b504c1b36e48e4b705c676f0f25cc5f3a
[INFO] running `Command { std: "docker" "start" "-a" "013a379418fbc3837334d1a70f55c87b504c1b36e48e4b705c676f0f25cc5f3a", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/flip-e3a4482287318835)
[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" "013a379418fbc3837334d1a70f55c87b504c1b36e48e4b705c676f0f25cc5f3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "013a379418fbc3837334d1a70f55c87b504c1b36e48e4b705c676f0f25cc5f3a", kill_on_drop: false }`
[INFO] [stdout] 013a379418fbc3837334d1a70f55c87b504c1b36e48e4b705c676f0f25cc5f3a