[INFO] fetching crate ndm 0.9.10...
[INFO] checking ndm-0.9.10 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate ndm 0.9.10 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate ndm 0.9.10 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 ndm 0.9.10
[INFO] finished tweaking crates.io crate ndm 0.9.10
[INFO] tweaked toml for crates.io crate ndm 0.9.10 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate ndm 0.9.10 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 serde v1.0.177
[INFO] [stderr]   Downloaded syn v2.0.27
[INFO] [stderr]   Downloaded serde_derive v1.0.177
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 92fa44efdcccebc1297b103731c59e324a2e39e630af0023b2fc08cab6a79ec7
[INFO] running `Command { std: "docker" "start" "-a" "92fa44efdcccebc1297b103731c59e324a2e39e630af0023b2fc08cab6a79ec7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "92fa44efdcccebc1297b103731c59e324a2e39e630af0023b2fc08cab6a79ec7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92fa44efdcccebc1297b103731c59e324a2e39e630af0023b2fc08cab6a79ec7", kill_on_drop: false }`
[INFO] [stdout] 92fa44efdcccebc1297b103731c59e324a2e39e630af0023b2fc08cab6a79ec7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] cb40e4cf96cefc6fff9114f6060d246250843397ba7edc21b1316057d52231de
[INFO] running `Command { std: "docker" "start" "-a" "cb40e4cf96cefc6fff9114f6060d246250843397ba7edc21b1316057d52231de", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling serde v1.0.177
[INFO] [stderr]    Compiling serde_derive v1.0.177
[INFO] [stderr]     Checking regex-syntax v0.7.4
[INFO] [stderr]    Compiling serde_json v1.0.104
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]     Checking itoa v1.0.9
[INFO] [stderr]     Checking aho-corasick v1.0.2
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking regex-automata v0.3.3
[INFO] [stderr]     Checking regex v1.9.1
[INFO] [stderr]     Checking ndm v0.9.10 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.95s
[INFO] running `Command { std: "docker" "inspect" "cb40e4cf96cefc6fff9114f6060d246250843397ba7edc21b1316057d52231de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb40e4cf96cefc6fff9114f6060d246250843397ba7edc21b1316057d52231de", kill_on_drop: false }`
[INFO] [stdout] cb40e4cf96cefc6fff9114f6060d246250843397ba7edc21b1316057d52231de
[INFO] checking ndm-0.9.10 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate ndm 0.9.10 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate ndm 0.9.10 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 ndm 0.9.10
[INFO] finished tweaking crates.io crate ndm 0.9.10
[INFO] tweaked toml for crates.io crate ndm 0.9.10 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate crates.io crate ndm 0.9.10 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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 9a6b4a1dc0d3b8a71ce3ad2daa0518806950b5671e6aff9c857d8f283d29c7c6
[INFO] running `Command { std: "docker" "start" "-a" "9a6b4a1dc0d3b8a71ce3ad2daa0518806950b5671e6aff9c857d8f283d29c7c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a6b4a1dc0d3b8a71ce3ad2daa0518806950b5671e6aff9c857d8f283d29c7c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a6b4a1dc0d3b8a71ce3ad2daa0518806950b5671e6aff9c857d8f283d29c7c6", kill_on_drop: false }`
[INFO] [stdout] 9a6b4a1dc0d3b8a71ce3ad2daa0518806950b5671e6aff9c857d8f283d29c7c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] d9ad824cfcc6ce7eb8901883110d92bd41b5edfaa44dc26952f1a3c23eb28ce4
[INFO] running `Command { std: "docker" "start" "-a" "d9ad824cfcc6ce7eb8901883110d92bd41b5edfaa44dc26952f1a3c23eb28ce4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling serde v1.0.177
[INFO] [stderr]    Compiling serde_derive v1.0.177
[INFO] [stderr]     Checking regex-syntax v0.7.4
[INFO] [stderr]    Compiling serde_json v1.0.104
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]     Checking itoa v1.0.9
[INFO] [stderr]     Checking aho-corasick v1.0.2
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking regex-automata v0.3.3
[INFO] [stderr]     Checking regex v1.9.1
[INFO] [stderr]     Checking ndm v0.9.10 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.55s
[INFO] running `Command { std: "docker" "inspect" "d9ad824cfcc6ce7eb8901883110d92bd41b5edfaa44dc26952f1a3c23eb28ce4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9ad824cfcc6ce7eb8901883110d92bd41b5edfaa44dc26952f1a3c23eb28ce4", kill_on_drop: false }`
[INFO] [stdout] d9ad824cfcc6ce7eb8901883110d92bd41b5edfaa44dc26952f1a3c23eb28ce4