[INFO] fetching crate tokio-u8-codec 0.1.0...
[INFO] checking tokio-u8-codec-0.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate tokio-u8-codec 0.1.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate tokio-u8-codec 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 tokio-u8-codec 0.1.0
[INFO] finished tweaking crates.io crate tokio-u8-codec 0.1.0
[INFO] tweaked toml for crates.io crate tokio-u8-codec 0.1.0 written to /workspace/builds/worker-5-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 8 packages
[INFO] [stderr]       Adding bytes v0.4.12 (latest: v1.6.0)
[INFO] [stderr]       Adding futures v0.1.31 (latest: v0.3.30)
[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-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 362c8ca6e386f9d9d836cb725e5edf8a64d1b7638b879f2502a9a47179fc32ec
[INFO] running `Command { std: "docker" "start" "-a" "362c8ca6e386f9d9d836cb725e5edf8a64d1b7638b879f2502a9a47179fc32ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "362c8ca6e386f9d9d836cb725e5edf8a64d1b7638b879f2502a9a47179fc32ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "362c8ca6e386f9d9d836cb725e5edf8a64d1b7638b879f2502a9a47179fc32ec", kill_on_drop: false }`
[INFO] [stdout] 362c8ca6e386f9d9d836cb725e5edf8a64d1b7638b879f2502a9a47179fc32ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 359f37c03d3f928675d87657423ed7b3f167c986863fd703a044cf3178d3cadb
[INFO] running `Command { std: "docker" "start" "-a" "359f37c03d3f928675d87657423ed7b3f167c986863fd703a044cf3178d3cadb", kill_on_drop: false }`
[INFO] [stderr]     Checking tokio-u8-codec v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "359f37c03d3f928675d87657423ed7b3f167c986863fd703a044cf3178d3cadb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "359f37c03d3f928675d87657423ed7b3f167c986863fd703a044cf3178d3cadb", kill_on_drop: false }`
[INFO] [stdout] 359f37c03d3f928675d87657423ed7b3f167c986863fd703a044cf3178d3cadb
[INFO] checking tokio-u8-codec-0.1.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate tokio-u8-codec 0.1.0 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate tokio-u8-codec 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 tokio-u8-codec 0.1.0
[INFO] finished tweaking crates.io crate tokio-u8-codec 0.1.0
[INFO] tweaked toml for crates.io crate tokio-u8-codec 0.1.0 written to /workspace/builds/worker-5-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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 927bd2b832c10146563b7cfb974fba8e734911ad9d5c57fa853497035cdb7cd3
[INFO] running `Command { std: "docker" "start" "-a" "927bd2b832c10146563b7cfb974fba8e734911ad9d5c57fa853497035cdb7cd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "927bd2b832c10146563b7cfb974fba8e734911ad9d5c57fa853497035cdb7cd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "927bd2b832c10146563b7cfb974fba8e734911ad9d5c57fa853497035cdb7cd3", kill_on_drop: false }`
[INFO] [stdout] 927bd2b832c10146563b7cfb974fba8e734911ad9d5c57fa853497035cdb7cd3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 52626a2b3b1d5297eb54b2298a5cec06ec6bbfdcfd364744c6090ac9d8a8879e
[INFO] running `Command { std: "docker" "start" "-a" "52626a2b3b1d5297eb54b2298a5cec06ec6bbfdcfd364744c6090ac9d8a8879e", kill_on_drop: false }`
[INFO] [stderr]     Checking tokio-u8-codec v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "52626a2b3b1d5297eb54b2298a5cec06ec6bbfdcfd364744c6090ac9d8a8879e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52626a2b3b1d5297eb54b2298a5cec06ec6bbfdcfd364744c6090ac9d8a8879e", kill_on_drop: false }`
[INFO] [stdout] 52626a2b3b1d5297eb54b2298a5cec06ec6bbfdcfd364744c6090ac9d8a8879e