[INFO] fetching crate serial_logger 0.1.0...
[INFO] checking serial_logger-0.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate serial_logger 0.1.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate serial_logger 0.1.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serial_logger 0.1.0
[INFO] finished tweaking crates.io crate serial_logger 0.1.0
[INFO] tweaked toml for crates.io crate serial_logger 0.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate serial_logger 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "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 wasm-bindgen-shared v0.2.84
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.84
[INFO] [stderr]   Downloaded home v0.5.4
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.84
[INFO] [stderr]   Downloaded cxxbridge-flags v1.0.90
[INFO] [stderr]   Downloaded link-cplusplus v1.0.8
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.84
[INFO] [stderr]   Downloaded pkg-config v0.3.26
[INFO] [stderr]   Downloaded scratch v1.0.3
[INFO] [stderr]   Downloaded cxxbridge-macro v1.0.90
[INFO] [stderr]   Downloaded proc-macro2 v1.0.51
[INFO] [stderr]   Downloaded cxx-build v1.0.90
[INFO] [stderr]   Downloaded js-sys v0.3.61
[INFO] [stderr]   Downloaded bumpalo v3.12.0
[INFO] [stderr]   Downloaded cxx v1.0.90
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.84
[INFO] [stderr]   Downloaded regex v1.7.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 684c3f23593c61fef27979bf61666a7c933dc7760382f783471fa53ae05af31a
[INFO] running `Command { std: "docker" "start" "-a" "684c3f23593c61fef27979bf61666a7c933dc7760382f783471fa53ae05af31a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "684c3f23593c61fef27979bf61666a7c933dc7760382f783471fa53ae05af31a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "684c3f23593c61fef27979bf61666a7c933dc7760382f783471fa53ae05af31a", kill_on_drop: false }`
[INFO] [stdout] 684c3f23593c61fef27979bf61666a7c933dc7760382f783471fa53ae05af31a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ec902436f61e27922567134df053e7f65824c804315a5760a8cd5830e2efc9d8
[INFO] running `Command { std: "docker" "start" "-a" "ec902436f61e27922567134df053e7f65824c804315a5760a8cd5830e2efc9d8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking iana-time-zone v0.1.53
[INFO] [stderr]     Checking home v0.5.4
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking nix v0.24.3
[INFO] [stderr]     Checking libudev v0.3.0
[INFO] [stderr]     Checking chrono v0.4.23
[INFO] [stderr]     Checking serialport v4.2.0
[INFO] [stderr]     Checking serial_logger v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [optimized + debuginfo] target(s) in 5.91s
[INFO] running `Command { std: "docker" "inspect" "ec902436f61e27922567134df053e7f65824c804315a5760a8cd5830e2efc9d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec902436f61e27922567134df053e7f65824c804315a5760a8cd5830e2efc9d8", kill_on_drop: false }`
[INFO] [stdout] ec902436f61e27922567134df053e7f65824c804315a5760a8cd5830e2efc9d8
[INFO] checking serial_logger-0.1.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate serial_logger 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate serial_logger 0.1.0 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serial_logger 0.1.0
[INFO] finished tweaking crates.io crate serial_logger 0.1.0
[INFO] tweaked toml for crates.io crate serial_logger 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate serial_logger 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ee0ae5bb254fd7247de0e45f7632bbe6048b6e1661994c6ba21d7fdf1bac41ff
[INFO] running `Command { std: "docker" "start" "-a" "ee0ae5bb254fd7247de0e45f7632bbe6048b6e1661994c6ba21d7fdf1bac41ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ee0ae5bb254fd7247de0e45f7632bbe6048b6e1661994c6ba21d7fdf1bac41ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee0ae5bb254fd7247de0e45f7632bbe6048b6e1661994c6ba21d7fdf1bac41ff", kill_on_drop: false }`
[INFO] [stdout] ee0ae5bb254fd7247de0e45f7632bbe6048b6e1661994c6ba21d7fdf1bac41ff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3140dfef5fdc9286a9bcd531bbc6cff5a7b40e2ce04391f04e3421b829228039
[INFO] running `Command { std: "docker" "start" "-a" "3140dfef5fdc9286a9bcd531bbc6cff5a7b40e2ce04391f04e3421b829228039", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking iana-time-zone v0.1.53
[INFO] [stderr]     Checking home v0.5.4
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking nix v0.24.3
[INFO] [stderr]     Checking libudev v0.3.0
[INFO] [stderr]     Checking chrono v0.4.23
[INFO] [stderr]     Checking serialport v4.2.0
[INFO] [stderr]     Checking serial_logger v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [optimized + debuginfo] target(s) in 5.80s
[INFO] running `Command { std: "docker" "inspect" "3140dfef5fdc9286a9bcd531bbc6cff5a7b40e2ce04391f04e3421b829228039", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3140dfef5fdc9286a9bcd531bbc6cff5a7b40e2ce04391f04e3421b829228039", kill_on_drop: false }`
[INFO] [stdout] 3140dfef5fdc9286a9bcd531bbc6cff5a7b40e2ce04391f04e3421b829228039