[INFO] fetching crate prioritized-metered-channel 0.5.1...
[INFO] checking prioritized-metered-channel-0.5.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate prioritized-metered-channel 0.5.1 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate prioritized-metered-channel 0.5.1 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 prioritized-metered-channel 0.5.1
[INFO] finished tweaking crates.io crate prioritized-metered-channel 0.5.1
[INFO] tweaked toml for crates.io crate prioritized-metered-channel 0.5.1 written to /workspace/builds/worker-6-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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 65 packages
[INFO] [stderr]       Adding async-channel v1.9.0 (latest: v2.2.0)
[INFO] [stderr]       Adding convert_case v0.4.0 (latest: v0.6.0)
[INFO] [stderr]       Adding env_logger v0.9.3 (latest: v0.11.3)
[INFO] [stderr]       Adding event-listener v2.5.3 (latest: v5.3.0)
[INFO] [stderr]       Adding hermit-abi v0.1.19 (latest: v0.3.9)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded coarsetime v0.1.34
[INFO] [stderr]   Downloaded wasix v0.12.21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] bb0d5c8a141e1b2a320b0b4e8cd890949339d61d1fd39459f2e57fc47c85c431
[INFO] running `Command { std: "docker" "start" "-a" "bb0d5c8a141e1b2a320b0b4e8cd890949339d61d1fd39459f2e57fc47c85c431", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bb0d5c8a141e1b2a320b0b4e8cd890949339d61d1fd39459f2e57fc47c85c431", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb0d5c8a141e1b2a320b0b4e8cd890949339d61d1fd39459f2e57fc47c85c431", kill_on_drop: false }`
[INFO] [stdout] bb0d5c8a141e1b2a320b0b4e8cd890949339d61d1fd39459f2e57fc47c85c431
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 6da31ba6b903153dc5fafda8370ce5679a39d3f2af8eb71b1df0bf0cbb509ba4
[INFO] running `Command { std: "docker" "start" "-a" "6da31ba6b903153dc5fafda8370ce5679a39d3f2af8eb71b1df0bf0cbb509ba4", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking regex-syntax v0.8.3
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]     Checking concurrent-queue v2.4.0
[INFO] [stderr]     Checking event-listener v2.5.3
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking coarsetime v0.1.34
[INFO] [stderr]     Checking async-channel v1.9.0
[INFO] [stderr]     Checking crossbeam-queue v0.3.11
[INFO] [stderr]     Checking nanorand v0.7.0
[INFO] [stderr]     Checking futures-timer v3.0.3
[INFO] [stderr]     Checking assert_matches v1.5.0
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]     Checking regex v1.10.4
[INFO] [stderr]     Checking env_logger v0.9.3
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking thiserror v1.0.58
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking prioritized-metered-channel v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 26.64s
[INFO] running `Command { std: "docker" "inspect" "6da31ba6b903153dc5fafda8370ce5679a39d3f2af8eb71b1df0bf0cbb509ba4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6da31ba6b903153dc5fafda8370ce5679a39d3f2af8eb71b1df0bf0cbb509ba4", kill_on_drop: false }`
[INFO] [stdout] 6da31ba6b903153dc5fafda8370ce5679a39d3f2af8eb71b1df0bf0cbb509ba4
[INFO] checking prioritized-metered-channel-0.5.1 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate prioritized-metered-channel 0.5.1 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate prioritized-metered-channel 0.5.1 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 prioritized-metered-channel 0.5.1
[INFO] finished tweaking crates.io crate prioritized-metered-channel 0.5.1
[INFO] tweaked toml for crates.io crate prioritized-metered-channel 0.5.1 written to /workspace/builds/worker-6-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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 17172bd5b6d6bf102c991a24e78bf204cd6907ab2f933a021e919a7fc98f3a51
[INFO] running `Command { std: "docker" "start" "-a" "17172bd5b6d6bf102c991a24e78bf204cd6907ab2f933a021e919a7fc98f3a51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "17172bd5b6d6bf102c991a24e78bf204cd6907ab2f933a021e919a7fc98f3a51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17172bd5b6d6bf102c991a24e78bf204cd6907ab2f933a021e919a7fc98f3a51", kill_on_drop: false }`
[INFO] [stdout] 17172bd5b6d6bf102c991a24e78bf204cd6907ab2f933a021e919a7fc98f3a51
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 1f2700977084432c46e2fc81f8970bc18b5be7910162f6ff012a49a83ae7c50e
[INFO] running `Command { std: "docker" "start" "-a" "1f2700977084432c46e2fc81f8970bc18b5be7910162f6ff012a49a83ae7c50e", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking regex-syntax v0.8.3
[INFO] [stderr]     Checking concurrent-queue v2.4.0
[INFO] [stderr]     Checking event-listener v2.5.3
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]     Checking coarsetime v0.1.34
[INFO] [stderr]     Checking async-channel v1.9.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking crossbeam-queue v0.3.11
[INFO] [stderr]     Checking futures-timer v3.0.3
[INFO] [stderr]     Checking nanorand v0.7.0
[INFO] [stderr]     Checking assert_matches v1.5.0
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]     Checking regex v1.10.4
[INFO] [stderr]     Checking env_logger v0.9.3
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking thiserror v1.0.58
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking prioritized-metered-channel v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 25.96s
[INFO] running `Command { std: "docker" "inspect" "1f2700977084432c46e2fc81f8970bc18b5be7910162f6ff012a49a83ae7c50e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f2700977084432c46e2fc81f8970bc18b5be7910162f6ff012a49a83ae7c50e", kill_on_drop: false }`
[INFO] [stdout] 1f2700977084432c46e2fc81f8970bc18b5be7910162f6ff012a49a83ae7c50e