[INFO] fetching crate mycobot 0.3.0...
[INFO] testing mycobot-0.3.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate mycobot 0.3.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate mycobot 0.3.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mycobot 0.3.0
[INFO] finished tweaking crates.io crate mycobot 0.3.0
[INFO] tweaked toml for crates.io crate mycobot 0.3.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate mycobot 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c6ec739f34a63a1645805dc347e67da66d083a8968f95f16cf54d99f9391f7cd
[INFO] running `Command { std: "docker" "start" "-a" "c6ec739f34a63a1645805dc347e67da66d083a8968f95f16cf54d99f9391f7cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c6ec739f34a63a1645805dc347e67da66d083a8968f95f16cf54d99f9391f7cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6ec739f34a63a1645805dc347e67da66d083a8968f95f16cf54d99f9391f7cd", kill_on_drop: false }`
[INFO] [stdout] c6ec739f34a63a1645805dc347e67da66d083a8968f95f16cf54d99f9391f7cd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2f49d4058d91eb5c7194ea80ee72507d3d9c4f32536eb963e7bd9fa55e9dcf6f
[INFO] running `Command { std: "docker" "start" "-a" "2f49d4058d91eb5c7194ea80ee72507d3d9c4f32536eb963e7bd9fa55e9dcf6f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.100
[INFO] [stderr]    Compiling nix v0.16.1
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling libudev v0.2.0
[INFO] [stderr]    Compiling serialport v4.0.1
[INFO] [stderr]    Compiling mycobot v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.52s
[INFO] running `Command { std: "docker" "inspect" "2f49d4058d91eb5c7194ea80ee72507d3d9c4f32536eb963e7bd9fa55e9dcf6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f49d4058d91eb5c7194ea80ee72507d3d9c4f32536eb963e7bd9fa55e9dcf6f", kill_on_drop: false }`
[INFO] [stdout] 2f49d4058d91eb5c7194ea80ee72507d3d9c4f32536eb963e7bd9fa55e9dcf6f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 717b0f85a20cbaa91c89d2fb5bc176cc2c7dbf196bc7ea7ae01c2a6792dd1ccb
[INFO] running `Command { std: "docker" "start" "-a" "717b0f85a20cbaa91c89d2fb5bc176cc2c7dbf196bc7ea7ae01c2a6792dd1ccb", kill_on_drop: false }`
[INFO] [stderr]    Compiling mycobot v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.47s
[INFO] running `Command { std: "docker" "inspect" "717b0f85a20cbaa91c89d2fb5bc176cc2c7dbf196bc7ea7ae01c2a6792dd1ccb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "717b0f85a20cbaa91c89d2fb5bc176cc2c7dbf196bc7ea7ae01c2a6792dd1ccb", kill_on_drop: false }`
[INFO] [stdout] 717b0f85a20cbaa91c89d2fb5bc176cc2c7dbf196bc7ea7ae01c2a6792dd1ccb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e7d27a2b956d0a0fd53e247a21a5b0ac190c5cd63fc2ad226f15ded9e33e65de
[INFO] running `Command { std: "docker" "start" "-a" "e7d27a2b956d0a0fd53e247a21a5b0ac190c5cd63fc2ad226f15ded9e33e65de", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[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]      Running unittests (/opt/rustwide/target/debug/deps/mycobot-bf3126c2e2ab44d1)
[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" "e7d27a2b956d0a0fd53e247a21a5b0ac190c5cd63fc2ad226f15ded9e33e65de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7d27a2b956d0a0fd53e247a21a5b0ac190c5cd63fc2ad226f15ded9e33e65de", kill_on_drop: false }`
[INFO] [stdout] e7d27a2b956d0a0fd53e247a21a5b0ac190c5cd63fc2ad226f15ded9e33e65de