[INFO] fetching crate shelp 0.2.1...
[INFO] checking shelp-0.2.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate shelp 0.2.1 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate shelp 0.2.1 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 shelp 0.2.1
[INFO] finished tweaking crates.io crate shelp 0.2.1
[INFO] tweaked toml for crates.io crate shelp 0.2.1 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]     Updating crates.io index
[INFO] [stderr]      Locking 24 packages
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding crossterm v0.18.2 (latest: v0.27.0)
[INFO] [stderr]       Adding crossterm_winapi v0.6.2 (latest: v0.9.1)
[INFO] [stderr]       Adding mio v0.7.14 (latest: v0.8.11)
[INFO] [stderr]       Adding miow v0.3.7 (latest: v0.6.0)
[INFO] [stderr]       Adding ntapi v0.3.7 (latest: v0.4.1)
[INFO] [stderr]       Adding parking_lot v0.11.2 (latest: v0.12.1)
[INFO] [stderr]       Adding parking_lot_core v0.8.6 (latest: v0.9.9)
[INFO] [stderr]       Adding redox_syscall v0.2.16 (latest: v0.5.1)
[INFO] [stderr]       Adding signal-hook v0.1.17 (latest: v0.3.17)
[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 crossterm v0.18.2
[INFO] [stderr]   Downloaded crossterm_winapi 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] 89eae32705e37835f5a21e5941546e888f0d2ec8382be4468a1ee090530f625e
[INFO] running `Command { std: "docker" "start" "-a" "89eae32705e37835f5a21e5941546e888f0d2ec8382be4468a1ee090530f625e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "89eae32705e37835f5a21e5941546e888f0d2ec8382be4468a1ee090530f625e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89eae32705e37835f5a21e5941546e888f0d2ec8382be4468a1ee090530f625e", kill_on_drop: false }`
[INFO] [stdout] 89eae32705e37835f5a21e5941546e888f0d2ec8382be4468a1ee090530f625e
[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] d9abe314db0867663b4bf095b0f0022a5029e5fa89e4f262cd98af48e6f1fe29
[INFO] running `Command { std: "docker" "start" "-a" "d9abe314db0867663b4bf095b0f0022a5029e5fa89e4f262cd98af48e6f1fe29", kill_on_drop: false }`
[INFO] [stderr]    Compiling parking_lot_core v0.8.6
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]     Checking signal-hook v0.1.17
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking crossterm v0.18.2
[INFO] [stderr]     Checking shelp v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.31s
[INFO] running `Command { std: "docker" "inspect" "d9abe314db0867663b4bf095b0f0022a5029e5fa89e4f262cd98af48e6f1fe29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9abe314db0867663b4bf095b0f0022a5029e5fa89e4f262cd98af48e6f1fe29", kill_on_drop: false }`
[INFO] [stdout] d9abe314db0867663b4bf095b0f0022a5029e5fa89e4f262cd98af48e6f1fe29
[INFO] checking shelp-0.2.1 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate shelp 0.2.1 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate shelp 0.2.1 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 shelp 0.2.1
[INFO] finished tweaking crates.io crate shelp 0.2.1
[INFO] tweaked toml for crates.io crate shelp 0.2.1 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]     Blocking waiting for file lock on package cache
[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] [stderr]     Blocking waiting for file lock on package cache
[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] e7b7f4fc77b6e3c1abd910edb199f30701c256e8635baf33842572b58319f59d
[INFO] running `Command { std: "docker" "start" "-a" "e7b7f4fc77b6e3c1abd910edb199f30701c256e8635baf33842572b58319f59d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7b7f4fc77b6e3c1abd910edb199f30701c256e8635baf33842572b58319f59d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7b7f4fc77b6e3c1abd910edb199f30701c256e8635baf33842572b58319f59d", kill_on_drop: false }`
[INFO] [stdout] e7b7f4fc77b6e3c1abd910edb199f30701c256e8635baf33842572b58319f59d
[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] bb3228c6323b53a113d61cd91906d1bfbde6d3b6256eab23b7e2009290c69c2e
[INFO] running `Command { std: "docker" "start" "-a" "bb3228c6323b53a113d61cd91906d1bfbde6d3b6256eab23b7e2009290c69c2e", kill_on_drop: false }`
[INFO] [stderr]    Compiling parking_lot_core v0.8.6
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]     Checking signal-hook v0.1.17
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking crossterm v0.18.2
[INFO] [stderr]     Checking shelp v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.96s
[INFO] running `Command { std: "docker" "inspect" "bb3228c6323b53a113d61cd91906d1bfbde6d3b6256eab23b7e2009290c69c2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb3228c6323b53a113d61cd91906d1bfbde6d3b6256eab23b7e2009290c69c2e", kill_on_drop: false }`
[INFO] [stdout] bb3228c6323b53a113d61cd91906d1bfbde6d3b6256eab23b7e2009290c69c2e