[INFO] fetching crate mio-serial 5.0.5...
[INFO] checking mio-serial-5.0.5 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate mio-serial 5.0.5 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate mio-serial 5.0.5 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 mio-serial 5.0.5
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate mio-serial 5.0.5
[INFO] tweaked toml for crates.io crate mio-serial 5.0.5 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate mio-serial 5.0.5 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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded CoreFoundation-sys v0.1.4
[INFO] [stderr]   Downloaded is-terminal v0.4.3
[INFO] [stderr]   Downloaded IOKit-sys v0.1.5
[INFO] [stderr]   Downloaded mach v0.1.2
[INFO] [stderr]   Downloaded libudev v0.3.0
[INFO] [stderr]   Downloaded serialport v4.2.0
[INFO] [stderr]   Downloaded hermit-abi v0.3.0
[INFO] [stderr]   Downloaded mio v0.8.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] b39ca81d7e27b06e74e6d6e285c84e58867d6a647690459d1f3f92c5fded84c7
[INFO] running `Command { std: "docker" "start" "-a" "b39ca81d7e27b06e74e6d6e285c84e58867d6a647690459d1f3f92c5fded84c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b39ca81d7e27b06e74e6d6e285c84e58867d6a647690459d1f3f92c5fded84c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b39ca81d7e27b06e74e6d6e285c84e58867d6a647690459d1f3f92c5fded84c7", kill_on_drop: false }`
[INFO] [stdout] b39ca81d7e27b06e74e6d6e285c84e58867d6a647690459d1f3f92c5fded84c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 690bd3381b2283f1379305bb0fcd20305f1328d23fd17444983aa39373dff1bb
[INFO] running `Command { std: "docker" "start" "-a" "690bd3381b2283f1379305bb0fcd20305f1328d23fd17444983aa39373dff1bb", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling io-lifetimes v1.0.5
[INFO] [stderr]    Compiling rustix v0.36.8
[INFO] [stderr]     Checking linux-raw-sys v0.1.4
[INFO] [stderr]     Checking regex-syntax v0.6.28
[INFO] [stderr]     Checking aho-corasick v0.7.20
[INFO] [stderr]     Checking termcolor v1.2.0
[INFO] [stderr]     Checking nix v0.24.3
[INFO] [stderr]     Checking nix v0.26.2
[INFO] [stderr]     Checking mio v0.8.5
[INFO] [stderr]     Checking regex v1.7.1
[INFO] [stderr]     Checking is-terminal v0.4.3
[INFO] [stderr]     Checking serialport v4.2.0
[INFO] [stderr]     Checking env_logger v0.10.0
[INFO] [stderr]     Checking mio-serial v5.0.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.58s
[INFO] running `Command { std: "docker" "inspect" "690bd3381b2283f1379305bb0fcd20305f1328d23fd17444983aa39373dff1bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "690bd3381b2283f1379305bb0fcd20305f1328d23fd17444983aa39373dff1bb", kill_on_drop: false }`
[INFO] [stdout] 690bd3381b2283f1379305bb0fcd20305f1328d23fd17444983aa39373dff1bb
[INFO] checking mio-serial-5.0.5 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate mio-serial 5.0.5 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate mio-serial 5.0.5 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 mio-serial 5.0.5
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate mio-serial 5.0.5
[INFO] tweaked toml for crates.io crate mio-serial 5.0.5 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate crates.io crate mio-serial 5.0.5 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] c0b7403bce09f34547c1e29ed552b0d46b56a58c8947fda91eee9a6cccbc414f
[INFO] running `Command { std: "docker" "start" "-a" "c0b7403bce09f34547c1e29ed552b0d46b56a58c8947fda91eee9a6cccbc414f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c0b7403bce09f34547c1e29ed552b0d46b56a58c8947fda91eee9a6cccbc414f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0b7403bce09f34547c1e29ed552b0d46b56a58c8947fda91eee9a6cccbc414f", kill_on_drop: false }`
[INFO] [stdout] c0b7403bce09f34547c1e29ed552b0d46b56a58c8947fda91eee9a6cccbc414f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 0afa9b2b51910dc7580efaababc7a380c3f6a8c1aa436a0e212d1936946240fd
[INFO] running `Command { std: "docker" "start" "-a" "0afa9b2b51910dc7580efaababc7a380c3f6a8c1aa436a0e212d1936946240fd", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling io-lifetimes v1.0.5
[INFO] [stderr]    Compiling rustix v0.36.8
[INFO] [stderr]     Checking linux-raw-sys v0.1.4
[INFO] [stderr]     Checking regex-syntax v0.6.28
[INFO] [stderr]     Checking aho-corasick v0.7.20
[INFO] [stderr]     Checking termcolor v1.2.0
[INFO] [stderr]     Checking nix v0.24.3
[INFO] [stderr]     Checking nix v0.26.2
[INFO] [stderr]     Checking mio v0.8.5
[INFO] [stderr]     Checking regex v1.7.1
[INFO] [stderr]     Checking serialport v4.2.0
[INFO] [stderr]     Checking is-terminal v0.4.3
[INFO] [stderr]     Checking env_logger v0.10.0
[INFO] [stderr]     Checking mio-serial v5.0.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.92s
[INFO] running `Command { std: "docker" "inspect" "0afa9b2b51910dc7580efaababc7a380c3f6a8c1aa436a0e212d1936946240fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0afa9b2b51910dc7580efaababc7a380c3f6a8c1aa436a0e212d1936946240fd", kill_on_drop: false }`
[INFO] [stdout] 0afa9b2b51910dc7580efaababc7a380c3f6a8c1aa436a0e212d1936946240fd