[INFO] cloning repository https://github.com/Isolated-/rust-serialcomm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Isolated-/rust-serialcomm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIsolated-%2Frust-serialcomm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIsolated-%2Frust-serialcomm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fe124fc384e7c83fe29ed7ac81ba214455133475
[INFO] testing Isolated-/rust-serialcomm against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIsolated-%2Frust-serialcomm" "/workspace/builds/worker-65/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-65/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Isolated-/rust-serialcomm 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 git repo https://github.com/Isolated-/rust-serialcomm
[INFO] finished tweaking git repo https://github.com/Isolated-/rust-serialcomm
[INFO] tweaked toml for git repo https://github.com/Isolated-/rust-serialcomm written to /workspace/builds/worker-65/source/Cargo.toml
[INFO] crate git repo https://github.com/Isolated-/rust-serialcomm 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/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] 1c6873d2d3797e9ad334ac0781bd58294ac0d3a75a6e6e1a2a7ee29bdb8839ff
[INFO] running `Command { std: "docker" "start" "-a" "1c6873d2d3797e9ad334ac0781bd58294ac0d3a75a6e6e1a2a7ee29bdb8839ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c6873d2d3797e9ad334ac0781bd58294ac0d3a75a6e6e1a2a7ee29bdb8839ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c6873d2d3797e9ad334ac0781bd58294ac0d3a75a6e6e1a2a7ee29bdb8839ff", kill_on_drop: false }`
[INFO] [stdout] 1c6873d2d3797e9ad334ac0781bd58294ac0d3a75a6e6e1a2a7ee29bdb8839ff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/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] 458e47db46e0b8056ee586e8b1e0f756da91c8facb695d33d47167b75750ff36
[INFO] running `Command { std: "docker" "start" "-a" "458e47db46e0b8056ee586e8b1e0f756da91c8facb695d33d47167b75750ff36", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling serialcomm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.55s
[INFO] running `Command { std: "docker" "inspect" "458e47db46e0b8056ee586e8b1e0f756da91c8facb695d33d47167b75750ff36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "458e47db46e0b8056ee586e8b1e0f756da91c8facb695d33d47167b75750ff36", kill_on_drop: false }`
[INFO] [stdout] 458e47db46e0b8056ee586e8b1e0f756da91c8facb695d33d47167b75750ff36
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/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] dc695122a57a8c609f5a668a91b5d9cd3d09da7a34e9d39e780b37d708143cd4
[INFO] running `Command { std: "docker" "start" "-a" "dc695122a57a8c609f5a668a91b5d9cd3d09da7a34e9d39e780b37d708143cd4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling serialcomm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.74s
[INFO] running `Command { std: "docker" "inspect" "dc695122a57a8c609f5a668a91b5d9cd3d09da7a34e9d39e780b37d708143cd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc695122a57a8c609f5a668a91b5d9cd3d09da7a34e9d39e780b37d708143cd4", kill_on_drop: false }`
[INFO] [stdout] dc695122a57a8c609f5a668a91b5d9cd3d09da7a34e9d39e780b37d708143cd4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/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] d6552f23c8a30c790c762e021ac7f9acf01f8267d20b14b751a40d1e085a2f41
[INFO] running `Command { std: "docker" "start" "-a" "d6552f23c8a30c790c762e021ac7f9acf01f8267d20b14b751a40d1e085a2f41", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/serialcomm-a074c2aea1aab188)
[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" "d6552f23c8a30c790c762e021ac7f9acf01f8267d20b14b751a40d1e085a2f41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6552f23c8a30c790c762e021ac7f9acf01f8267d20b14b751a40d1e085a2f41", kill_on_drop: false }`
[INFO] [stdout] d6552f23c8a30c790c762e021ac7f9acf01f8267d20b14b751a40d1e085a2f41