[INFO] fetching crate async-priority-channel 0.1.0...
[INFO] checking async-priority-channel-0.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate async-priority-channel 0.1.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate async-priority-channel 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 async-priority-channel 0.1.0
[INFO] finished tweaking crates.io crate async-priority-channel 0.1.0
[INFO] tweaked toml for crates.io crate async-priority-channel 0.1.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 29 packages
[INFO] [stderr]       Adding event-listener v2.5.3 (latest: v5.3.0)
[INFO] [stderr]       Adding fastrand v1.9.0 (latest: v2.0.2)
[INFO] [stderr]       Adding futures-lite v1.13.0 (latest: v2.3.0)
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.34.0)
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 1c183be7a03664bd7af5ffd2c185289b285ece043f968987e2f99fb4a966d745
[INFO] running `Command { std: "docker" "start" "-a" "1c183be7a03664bd7af5ffd2c185289b285ece043f968987e2f99fb4a966d745", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c183be7a03664bd7af5ffd2c185289b285ece043f968987e2f99fb4a966d745", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c183be7a03664bd7af5ffd2c185289b285ece043f968987e2f99fb4a966d745", kill_on_drop: false }`
[INFO] [stdout] 1c183be7a03664bd7af5ffd2c185289b285ece043f968987e2f99fb4a966d745
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 9603b45b11b9ced0dda941e53a1786838d075299383cd5ade3820683fbb4ce44
[INFO] running `Command { std: "docker" "start" "-a" "9603b45b11b9ced0dda941e53a1786838d075299383cd5ade3820683fbb4ce44", kill_on_drop: false }`
[INFO] [stderr]     Checking parking v2.2.0
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]     Checking event-listener v2.5.3
[INFO] [stderr]     Checking fastrand v1.9.0
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking waker-fn v1.1.1
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]     Checking async-priority-channel v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking futures-lite v1.13.0
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.73s
[INFO] running `Command { std: "docker" "inspect" "9603b45b11b9ced0dda941e53a1786838d075299383cd5ade3820683fbb4ce44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9603b45b11b9ced0dda941e53a1786838d075299383cd5ade3820683fbb4ce44", kill_on_drop: false }`
[INFO] [stdout] 9603b45b11b9ced0dda941e53a1786838d075299383cd5ade3820683fbb4ce44
[INFO] checking async-priority-channel-0.1.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate async-priority-channel 0.1.0 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate async-priority-channel 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 async-priority-channel 0.1.0
[INFO] finished tweaking crates.io crate async-priority-channel 0.1.0
[INFO] tweaked toml for crates.io crate async-priority-channel 0.1.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] d6705cbf43045c758b7097413d56033b37771eba96471df9a2bcb40e75b27caf
[INFO] running `Command { std: "docker" "start" "-a" "d6705cbf43045c758b7097413d56033b37771eba96471df9a2bcb40e75b27caf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d6705cbf43045c758b7097413d56033b37771eba96471df9a2bcb40e75b27caf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6705cbf43045c758b7097413d56033b37771eba96471df9a2bcb40e75b27caf", kill_on_drop: false }`
[INFO] [stdout] d6705cbf43045c758b7097413d56033b37771eba96471df9a2bcb40e75b27caf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] f09894c06feb1357a1718c3bf1b5cd2cf48e13c8a908d217c489dcd6c0077ce9
[INFO] running `Command { std: "docker" "start" "-a" "f09894c06feb1357a1718c3bf1b5cd2cf48e13c8a908d217c489dcd6c0077ce9", kill_on_drop: false }`
[INFO] [stderr]     Checking event-listener v2.5.3
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking waker-fn v1.1.1
[INFO] [stderr]     Checking fastrand v1.9.0
[INFO] [stderr]     Checking parking v2.2.0
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking async-priority-channel v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking futures-lite v1.13.0
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.36s
[INFO] running `Command { std: "docker" "inspect" "f09894c06feb1357a1718c3bf1b5cd2cf48e13c8a908d217c489dcd6c0077ce9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f09894c06feb1357a1718c3bf1b5cd2cf48e13c8a908d217c489dcd6c0077ce9", kill_on_drop: false }`
[INFO] [stdout] f09894c06feb1357a1718c3bf1b5cd2cf48e13c8a908d217c489dcd6c0077ce9