[INFO] fetching crate dumbhttp 0.1.4...
[INFO] checking dumbhttp-0.1.4 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate dumbhttp 0.1.4 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate dumbhttp 0.1.4 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 dumbhttp 0.1.4
[INFO] finished tweaking crates.io crate dumbhttp 0.1.4
[INFO] tweaked toml for crates.io crate dumbhttp 0.1.4 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate dumbhttp 0.1.4 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_core v0.9.1
[INFO] [stderr]   Downloaded parking_lot v0.12.0
[INFO] [stderr]   Downloaded smallvec v1.8.0
[INFO] [stderr]   Downloaded redox_syscall v0.2.11
[INFO] [stderr]   Downloaded indexmap v1.8.0
[INFO] [stderr]   Downloaded tracing-core v0.1.23
[INFO] [stderr]   Downloaded h2 v0.3.12
[INFO] [stderr]   Downloaded syn v1.0.88
[INFO] [stderr]   Downloaded libc v0.2.120
[INFO] [stderr]   Downloaded windows_aarch64_msvc v0.32.0
[INFO] [stderr]   Downloaded windows_i686_gnu v0.32.0
[INFO] [stderr]   Downloaded windows_i686_msvc v0.32.0
[INFO] [stderr]   Downloaded windows_x86_64_gnu v0.32.0
[INFO] [stderr]   Downloaded windows_x86_64_msvc v0.32.0
[INFO] [stderr]   Downloaded tokio v1.17.0
[INFO] [stderr]   Downloaded hyper v0.14.17
[INFO] [stderr]   Downloaded tracing v0.1.32
[INFO] [stderr]   Downloaded mio v0.8.1
[INFO] [stderr]   Downloaded lock_api v0.4.6
[INFO] [stderr]   Downloaded windows-sys v0.32.0
[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] 4995b8d845db8885afecba80d770f83ef2688a5b36f3537b3387d37a3521c02a
[INFO] running `Command { std: "docker" "start" "-a" "4995b8d845db8885afecba80d770f83ef2688a5b36f3537b3387d37a3521c02a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4995b8d845db8885afecba80d770f83ef2688a5b36f3537b3387d37a3521c02a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4995b8d845db8885afecba80d770f83ef2688a5b36f3537b3387d37a3521c02a", kill_on_drop: false }`
[INFO] [stdout] 4995b8d845db8885afecba80d770f83ef2688a5b36f3537b3387d37a3521c02a
[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] ea357197a06eeb775c5d41f380984b7e5a65656383337266d00bd3c9caae1314
[INFO] running `Command { std: "docker" "start" "-a" "ea357197a06eeb775c5d41f380984b7e5a65656383337266d00bd3c9caae1314", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.120
[INFO] [stderr]    Compiling parking_lot_core v0.9.1
[INFO] [stderr]     Checking pin-project-lite v0.2.8
[INFO] [stderr]    Compiling syn v1.0.88
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking once_cell v1.10.0
[INFO] [stderr]     Checking http v0.2.6
[INFO] [stderr]     Checking tracing-core v0.1.23
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]    Compiling httparse v1.6.0
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]     Checking slab v0.4.5
[INFO] [stderr]     Checking lock_api v0.4.6
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking tracing v0.1.32
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking mio v0.8.1
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking parking_lot v0.12.0
[INFO] [stderr]     Checking http-body v0.4.4
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]     Checking tokio v1.17.0
[INFO] [stderr]     Checking tokio-util v0.6.9
[INFO] [stderr]     Checking h2 v0.3.12
[INFO] [stderr]     Checking hyper v0.14.17
[INFO] [stderr]     Checking dumbhttp v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.28s
[INFO] running `Command { std: "docker" "inspect" "ea357197a06eeb775c5d41f380984b7e5a65656383337266d00bd3c9caae1314", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea357197a06eeb775c5d41f380984b7e5a65656383337266d00bd3c9caae1314", kill_on_drop: false }`
[INFO] [stdout] ea357197a06eeb775c5d41f380984b7e5a65656383337266d00bd3c9caae1314
[INFO] checking dumbhttp-0.1.4 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate dumbhttp 0.1.4 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate dumbhttp 0.1.4 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 dumbhttp 0.1.4
[INFO] finished tweaking crates.io crate dumbhttp 0.1.4
[INFO] tweaked toml for crates.io crate dumbhttp 0.1.4 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate crates.io crate dumbhttp 0.1.4 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-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] d1754e39737ccc54695d3b6f5945af938fbfe274d49336df177a0cebd474460a
[INFO] running `Command { std: "docker" "start" "-a" "d1754e39737ccc54695d3b6f5945af938fbfe274d49336df177a0cebd474460a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d1754e39737ccc54695d3b6f5945af938fbfe274d49336df177a0cebd474460a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1754e39737ccc54695d3b6f5945af938fbfe274d49336df177a0cebd474460a", kill_on_drop: false }`
[INFO] [stdout] d1754e39737ccc54695d3b6f5945af938fbfe274d49336df177a0cebd474460a
[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] 8832a3271d6822a1419300fe6dd456dee55364ed16db3ee2f4ba75d6f09b81d7
[INFO] running `Command { std: "docker" "start" "-a" "8832a3271d6822a1419300fe6dd456dee55364ed16db3ee2f4ba75d6f09b81d7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.120
[INFO] [stderr]    Compiling parking_lot_core v0.9.1
[INFO] [stderr]    Compiling syn v1.0.88
[INFO] [stderr]     Checking pin-project-lite v0.2.8
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]     Checking once_cell v1.10.0
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking tracing-core v0.1.23
[INFO] [stderr]     Checking http v0.2.6
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling httparse v1.6.0
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking lock_api v0.4.6
[INFO] [stderr]     Checking slab v0.4.5
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking tracing v0.1.32
[INFO] [stderr]     Checking mio v0.8.1
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking parking_lot v0.12.0
[INFO] [stderr]     Checking http-body v0.4.4
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]     Checking tokio v1.17.0
[INFO] [stderr]     Checking tokio-util v0.6.9
[INFO] [stderr]     Checking h2 v0.3.12
[INFO] [stderr]     Checking hyper v0.14.17
[INFO] [stderr]     Checking dumbhttp v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.47s
[INFO] running `Command { std: "docker" "inspect" "8832a3271d6822a1419300fe6dd456dee55364ed16db3ee2f4ba75d6f09b81d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8832a3271d6822a1419300fe6dd456dee55364ed16db3ee2f4ba75d6f09b81d7", kill_on_drop: false }`
[INFO] [stdout] 8832a3271d6822a1419300fe6dd456dee55364ed16db3ee2f4ba75d6f09b81d7