[INFO] fetching crate mycobot 0.4.0...
[INFO] testing mycobot-0.4.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate mycobot 0.4.0 into /workspace/builds/worker-77/source
[INFO] validating manifest of crates.io crate mycobot 0.4.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mycobot 0.4.0
[INFO] finished tweaking crates.io crate mycobot 0.4.0
[INFO] tweaked toml for crates.io crate mycobot 0.4.0 written to /workspace/builds/worker-77/source/Cargo.toml
[INFO] crate crates.io crate mycobot 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded nix v0.16.1
[INFO] [stderr]   Downloaded libc v0.2.100
[INFO] [stderr]   Downloaded serialport v4.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6612f81d399fafb23d54d73ce485fe1e65c1af42726e80a82bd12e0707982bb5
[INFO] running `Command { std: "docker" "start" "-a" "6612f81d399fafb23d54d73ce485fe1e65c1af42726e80a82bd12e0707982bb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6612f81d399fafb23d54d73ce485fe1e65c1af42726e80a82bd12e0707982bb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6612f81d399fafb23d54d73ce485fe1e65c1af42726e80a82bd12e0707982bb5", kill_on_drop: false }`
[INFO] [stdout] 6612f81d399fafb23d54d73ce485fe1e65c1af42726e80a82bd12e0707982bb5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 640ea6e9426c994720e9260383c70ae912e640b4318ec7ceee18ae30dc648347
[INFO] running `Command { std: "docker" "start" "-a" "640ea6e9426c994720e9260383c70ae912e640b4318ec7ceee18ae30dc648347", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.100
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling nix v0.16.1
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling anyhow v1.0.53
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling libudev v0.2.0
[INFO] [stderr]    Compiling serialport v4.0.1
[INFO] [stderr]    Compiling mycobot v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.44s
[INFO] running `Command { std: "docker" "inspect" "640ea6e9426c994720e9260383c70ae912e640b4318ec7ceee18ae30dc648347", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "640ea6e9426c994720e9260383c70ae912e640b4318ec7ceee18ae30dc648347", kill_on_drop: false }`
[INFO] [stdout] 640ea6e9426c994720e9260383c70ae912e640b4318ec7ceee18ae30dc648347
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2da07c7cde58bd9ba97129ba39a005ae88d4f5ef11b73d5684a2ded17f657e4e
[INFO] running `Command { std: "docker" "start" "-a" "2da07c7cde58bd9ba97129ba39a005ae88d4f5ef11b73d5684a2ded17f657e4e", kill_on_drop: false }`
[INFO] [stderr]    Compiling mycobot v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `Command { std: "docker" "inspect" "2da07c7cde58bd9ba97129ba39a005ae88d4f5ef11b73d5684a2ded17f657e4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2da07c7cde58bd9ba97129ba39a005ae88d4f5ef11b73d5684a2ded17f657e4e", kill_on_drop: false }`
[INFO] [stdout] 2da07c7cde58bd9ba97129ba39a005ae88d4f5ef11b73d5684a2ded17f657e4e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 01445cfa54b0749787d39dd72a921dae7f77c5022db0898a6c924dfc5b218aad
[INFO] running `Command { std: "docker" "start" "-a" "01445cfa54b0749787d39dd72a921dae7f77c5022db0898a6c924dfc5b218aad", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mycobot-a53125d465fafd52)
[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] [stderr]    Doc-tests mycobot
[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" "01445cfa54b0749787d39dd72a921dae7f77c5022db0898a6c924dfc5b218aad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01445cfa54b0749787d39dd72a921dae7f77c5022db0898a6c924dfc5b218aad", kill_on_drop: false }`
[INFO] [stdout] 01445cfa54b0749787d39dd72a921dae7f77c5022db0898a6c924dfc5b218aad