[INFO] fetching crate poison-guard 0.1.0...
[INFO] checking poison-guard-0.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate poison-guard 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate poison-guard 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 poison-guard 0.1.0
[INFO] finished tweaking crates.io crate poison-guard 0.1.0
[INFO] tweaked toml for crates.io crate poison-guard 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate poison-guard 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]  Downloading crates ...
[INFO] [stderr]   Downloaded parking_lot v0.1.3
[INFO] [stderr]   Downloaded trybuild v1.0.40
[INFO] [stderr]   Downloaded smallvec v0.1.8
[INFO] [stderr]   Downloaded tokio v1.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 25599c7d72208ed2f2e5ae4cee4634c6493518b2acc886e313959a03dee26b77
[INFO] running `Command { std: "docker" "start" "-a" "25599c7d72208ed2f2e5ae4cee4634c6493518b2acc886e313959a03dee26b77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "25599c7d72208ed2f2e5ae4cee4634c6493518b2acc886e313959a03dee26b77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25599c7d72208ed2f2e5ae4cee4634c6493518b2acc886e313959a03dee26b77", kill_on_drop: false }`
[INFO] [stdout] 25599c7d72208ed2f2e5ae4cee4634c6493518b2acc886e313959a03dee26b77
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] c6b7dc66d0e966727fd689ccb4a2da91ebd6ae85e9b5109939d8fbff295c48f2
[INFO] running `Command { std: "docker" "start" "-a" "c6b7dc66d0e966727fd689ccb4a2da91ebd6ae85e9b5109939d8fbff295c48f2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]     Checking lock_api v0.4.6
[INFO] [stderr]    Compiling tokio v1.2.0
[INFO] [stderr]    Compiling trybuild v1.0.40
[INFO] [stderr]    Compiling anyhow v1.0.38
[INFO] [stderr]     Checking smallvec v0.1.8
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]     Checking pin-project-lite v0.2.4
[INFO] [stderr]     Checking poison-guard v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking parking_lot v0.1.3
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking parking_lot_core v0.8.5
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.21s
[INFO] running `Command { std: "docker" "inspect" "c6b7dc66d0e966727fd689ccb4a2da91ebd6ae85e9b5109939d8fbff295c48f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6b7dc66d0e966727fd689ccb4a2da91ebd6ae85e9b5109939d8fbff295c48f2", kill_on_drop: false }`
[INFO] [stdout] c6b7dc66d0e966727fd689ccb4a2da91ebd6ae85e9b5109939d8fbff295c48f2
[INFO] checking poison-guard-0.1.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate poison-guard 0.1.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate poison-guard 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 poison-guard 0.1.0
[INFO] finished tweaking crates.io crate poison-guard 0.1.0
[INFO] tweaked toml for crates.io crate poison-guard 0.1.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate crates.io crate poison-guard 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 1d1e203e642cfbcd46e6af4286372985777f19f583552ebdaf88d0e4ecf84d59
[INFO] running `Command { std: "docker" "start" "-a" "1d1e203e642cfbcd46e6af4286372985777f19f583552ebdaf88d0e4ecf84d59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1d1e203e642cfbcd46e6af4286372985777f19f583552ebdaf88d0e4ecf84d59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d1e203e642cfbcd46e6af4286372985777f19f583552ebdaf88d0e4ecf84d59", kill_on_drop: false }`
[INFO] [stdout] 1d1e203e642cfbcd46e6af4286372985777f19f583552ebdaf88d0e4ecf84d59
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 02146d7d552f780468ce1f8059363ad30ace898d014af824cd552c3b99179686
[INFO] running `Command { std: "docker" "start" "-a" "02146d7d552f780468ce1f8059363ad30ace898d014af824cd552c3b99179686", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]    Compiling tokio v1.2.0
[INFO] [stderr]     Checking lock_api v0.4.6
[INFO] [stderr]    Compiling trybuild v1.0.40
[INFO] [stderr]    Compiling anyhow v1.0.38
[INFO] [stderr]     Checking smallvec v0.1.8
[INFO] [stderr]     Checking pin-project-lite v0.2.4
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking poison-guard v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking parking_lot v0.1.3
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking parking_lot_core v0.8.5
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.79s
[INFO] running `Command { std: "docker" "inspect" "02146d7d552f780468ce1f8059363ad30ace898d014af824cd552c3b99179686", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02146d7d552f780468ce1f8059363ad30ace898d014af824cd552c3b99179686", kill_on_drop: false }`
[INFO] [stdout] 02146d7d552f780468ce1f8059363ad30ace898d014af824cd552c3b99179686