[INFO] fetching crate wc-grab 0.3.0...
[INFO] checking wc-grab-0.3.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate wc-grab 0.3.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate wc-grab 0.3.0 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 wc-grab 0.3.0
[INFO] finished tweaking crates.io crate wc-grab 0.3.0
[INFO] tweaked toml for crates.io crate wc-grab 0.3.0 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]     Updating crates.io index
[INFO] [stderr]      Locking 42 packages
[INFO] [stderr]       Adding bitflags v0.7.0 (latest: v2.5.0)
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding clap v2.34.0 (latest: v4.5.4)
[INFO] [stderr]       Adding dbus v0.5.4 (latest: v0.9.7)
[INFO] [stderr]       Adding deflate v0.7.20 (latest: v1.0.0)
[INFO] [stderr]       Adding gif v0.9.2 (latest: v0.13.1)
[INFO] [stderr]       Adding hermit-abi v0.1.19 (latest: v0.3.9)
[INFO] [stderr]       Adding image v0.12.4 (latest: v0.25.1)
[INFO] [stderr]       Adding inflate v0.1.1 (latest: v0.4.5)
[INFO] [stderr]       Adding jpeg-decoder v0.1.22 (latest: v0.3.1)
[INFO] [stderr]       Adding libdbus-sys v0.1.5 (latest: v0.2.5)
[INFO] [stderr]       Adding num-rational v0.1.42 (latest: v0.4.1)
[INFO] [stderr]       Adding num-traits v0.1.43 (latest: v0.2.18)
[INFO] [stderr]       Adding png v0.6.2 (latest: v0.17.13)
[INFO] [stderr]       Adding strsim v0.8.0 (latest: v0.11.1)
[INFO] [stderr]       Adding textwrap v0.11.0 (latest: v0.16.1)
[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 image v0.12.4
[INFO] [stderr]   Downloaded libdbus-sys v0.1.5
[INFO] [stderr]   Downloaded dbus v0.5.4
[INFO] [stderr]   Downloaded inflate v0.1.1
[INFO] [stderr]   Downloaded png v0.6.2
[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] 580fc40196ad0d07be3de0237e5f2357d5ea4035e68c428a03ada2529fbc9365
[INFO] running `Command { std: "docker" "start" "-a" "580fc40196ad0d07be3de0237e5f2357d5ea4035e68c428a03ada2529fbc9365", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "580fc40196ad0d07be3de0237e5f2357d5ea4035e68c428a03ada2529fbc9365", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "580fc40196ad0d07be3de0237e5f2357d5ea4035e68c428a03ada2529fbc9365", kill_on_drop: false }`
[INFO] [stdout] 580fc40196ad0d07be3de0237e5f2357d5ea4035e68c428a03ada2529fbc9365
[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] f28e5394fedc06c8743156771d38a7beef2d448f812ef7728b08af664b08bfe3
[INFO] running `Command { std: "docker" "start" "-a" "f28e5394fedc06c8743156771d38a7beef2d448f812ef7728b08af664b08bfe3", kill_on_drop: false }`
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]     Checking unicode-width v0.1.11
[INFO] [stderr]     Checking inflate v0.1.1
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling libdbus-sys v0.1.5
[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking gif v0.9.2
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]     Checking dbus v0.5.4
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking num-iter v0.1.44
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking png v0.6.2
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking image v0.12.4
[INFO] [stderr]     Checking wc-grab v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.84s
[INFO] running `Command { std: "docker" "inspect" "f28e5394fedc06c8743156771d38a7beef2d448f812ef7728b08af664b08bfe3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f28e5394fedc06c8743156771d38a7beef2d448f812ef7728b08af664b08bfe3", kill_on_drop: false }`
[INFO] [stdout] f28e5394fedc06c8743156771d38a7beef2d448f812ef7728b08af664b08bfe3
[INFO] checking wc-grab-0.3.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate wc-grab 0.3.0 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate wc-grab 0.3.0 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 wc-grab 0.3.0
[INFO] finished tweaking crates.io crate wc-grab 0.3.0
[INFO] tweaked toml for crates.io crate wc-grab 0.3.0 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] d8842ceb2f5f77c3d39d2aca1023e3b7360d5c5623c5cecef4fd0a40844adb45
[INFO] running `Command { std: "docker" "start" "-a" "d8842ceb2f5f77c3d39d2aca1023e3b7360d5c5623c5cecef4fd0a40844adb45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d8842ceb2f5f77c3d39d2aca1023e3b7360d5c5623c5cecef4fd0a40844adb45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8842ceb2f5f77c3d39d2aca1023e3b7360d5c5623c5cecef4fd0a40844adb45", kill_on_drop: false }`
[INFO] [stdout] d8842ceb2f5f77c3d39d2aca1023e3b7360d5c5623c5cecef4fd0a40844adb45
[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] ac8b02c658be1d1ae0ed94ad2ecfe1738da988e064010800868b9edb1fa3cbcb
[INFO] running `Command { std: "docker" "start" "-a" "ac8b02c658be1d1ae0ed94ad2ecfe1738da988e064010800868b9edb1fa3cbcb", kill_on_drop: false }`
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling libdbus-sys v0.1.5
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]     Checking unicode-width v0.1.11
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]     Checking inflate v0.1.1
[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking gif v0.9.2
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]     Checking dbus v0.5.4
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking num-iter v0.1.44
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking png v0.6.2
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking image v0.12.4
[INFO] [stderr]     Checking wc-grab v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.99s
[INFO] running `Command { std: "docker" "inspect" "ac8b02c658be1d1ae0ed94ad2ecfe1738da988e064010800868b9edb1fa3cbcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac8b02c658be1d1ae0ed94ad2ecfe1738da988e064010800868b9edb1fa3cbcb", kill_on_drop: false }`
[INFO] [stdout] ac8b02c658be1d1ae0ed94ad2ecfe1738da988e064010800868b9edb1fa3cbcb