[INFO] fetching crate can 0.2.1-alpha.4...
[INFO] checking can-0.2.1-alpha.4 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate can 0.2.1-alpha.4 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate can 0.2.1-alpha.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 can 0.2.1-alpha.4
[INFO] finished tweaking crates.io crate can 0.2.1-alpha.4
[INFO] tweaked toml for crates.io crate can 0.2.1-alpha.4 written to /workspace/builds/worker-0-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 48 packages
[INFO] [stderr]       Adding bitflags v0.4.0 (latest: v2.5.0)
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding embedded-can v0.3.0 (latest: v0.4.1)
[INFO] [stderr]       Adding hex v0.2.0 (latest: v0.4.3)
[INFO] [stderr]       Adding itertools v0.4.19 (latest: v0.12.1)
[INFO] [stderr]       Adding linux-raw-sys v0.4.13 (latest: v0.6.4)
[INFO] [stderr]       Adding nix v0.5.1 (latest: v0.28.0)
[INFO] [stderr]       Adding quick-error v1.2.3 (latest: v2.0.1)
[INFO] [stderr]       Adding socketcan v1.7.0 (latest: v3.3.0)
[INFO] [stderr]       Adding try_from v0.2.2 (latest: v0.3.2)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[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 try_from v0.2.2
[INFO] [stderr]   Downloaded bitflags v0.4.0
[INFO] [stderr]   Downloaded unarray v0.1.4
[INFO] [stderr]   Downloaded proptest v1.4.0
[INFO] [stderr]   Downloaded embedded-can v0.3.0
[INFO] [stderr]   Downloaded rand_xorshift v0.3.0
[INFO] [stderr]   Downloaded rusty-fork v0.3.0
[INFO] [stderr]   Downloaded itertools v0.4.19
[INFO] [stderr]   Downloaded hex v0.2.0
[INFO] [stderr]   Downloaded socketcan v1.7.0
[INFO] [stderr]   Downloaded nix v0.5.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] c1f8051ceb4f734b953aa7cee7af933ada6c5d45999950bb8cc7b55a89d2212a
[INFO] running `Command { std: "docker" "start" "-a" "c1f8051ceb4f734b953aa7cee7af933ada6c5d45999950bb8cc7b55a89d2212a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c1f8051ceb4f734b953aa7cee7af933ada6c5d45999950bb8cc7b55a89d2212a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1f8051ceb4f734b953aa7cee7af933ada6c5d45999950bb8cc7b55a89d2212a", kill_on_drop: false }`
[INFO] [stdout] c1f8051ceb4f734b953aa7cee7af933ada6c5d45999950bb8cc7b55a89d2212a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] ee9dbaccf2b79d6885ef0e25f1b88ddcb22defef0d22623b1bfb812739841dde
[INFO] running `Command { std: "docker" "start" "-a" "ee9dbaccf2b79d6885ef0e25f1b88ddcb22defef0d22623b1bfb812739841dde", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustix v0.38.32
[INFO] [stderr]    Compiling libm v0.2.8
[INFO] [stderr]     Checking bitflags v2.5.0
[INFO] [stderr]     Checking linux-raw-sys v0.4.13
[INFO] [stderr]     Checking bitflags v0.4.0
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking try_from v0.2.2
[INFO] [stderr]     Checking nix v0.5.1
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking hex v0.2.0
[INFO] [stderr]     Checking itertools v0.4.19
[INFO] [stderr]     Checking embedded-can v0.3.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking bit-set v0.5.3
[INFO] [stderr]     Checking rand_xorshift v0.3.0
[INFO] [stderr]     Checking unarray v0.1.4
[INFO] [stderr]     Checking socketcan v1.7.0
[INFO] [stderr]     Checking can v0.2.1-alpha.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking tempfile v3.10.1
[INFO] [stderr]     Checking rusty-fork v0.3.0
[INFO] [stderr]     Checking proptest v1.4.0
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.55s
[INFO] running `Command { std: "docker" "inspect" "ee9dbaccf2b79d6885ef0e25f1b88ddcb22defef0d22623b1bfb812739841dde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee9dbaccf2b79d6885ef0e25f1b88ddcb22defef0d22623b1bfb812739841dde", kill_on_drop: false }`
[INFO] [stdout] ee9dbaccf2b79d6885ef0e25f1b88ddcb22defef0d22623b1bfb812739841dde
[INFO] checking can-0.2.1-alpha.4 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate can 0.2.1-alpha.4 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate can 0.2.1-alpha.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 can 0.2.1-alpha.4
[INFO] finished tweaking crates.io crate can 0.2.1-alpha.4
[INFO] tweaked toml for crates.io crate can 0.2.1-alpha.4 written to /workspace/builds/worker-0-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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 97c8e7cfe2b358359605d8fb5c3ef6a52b933c2b1ea7e3ff7b295d612a2d600b
[INFO] running `Command { std: "docker" "start" "-a" "97c8e7cfe2b358359605d8fb5c3ef6a52b933c2b1ea7e3ff7b295d612a2d600b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "97c8e7cfe2b358359605d8fb5c3ef6a52b933c2b1ea7e3ff7b295d612a2d600b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97c8e7cfe2b358359605d8fb5c3ef6a52b933c2b1ea7e3ff7b295d612a2d600b", kill_on_drop: false }`
[INFO] [stdout] 97c8e7cfe2b358359605d8fb5c3ef6a52b933c2b1ea7e3ff7b295d612a2d600b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 7ea7acc5e11959f332cee41defe12dac6613b05045f4faad527e604afa1dd716
[INFO] running `Command { std: "docker" "start" "-a" "7ea7acc5e11959f332cee41defe12dac6613b05045f4faad527e604afa1dd716", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustix v0.38.32
[INFO] [stderr]     Checking bitflags v2.5.0
[INFO] [stderr]    Compiling libm v0.2.8
[INFO] [stderr]     Checking linux-raw-sys v0.4.13
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking bitflags v0.4.0
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking itertools v0.4.19
[INFO] [stderr]     Checking nix v0.5.1
[INFO] [stderr]     Checking try_from v0.2.2
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking hex v0.2.0
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking embedded-can v0.3.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking bit-set v0.5.3
[INFO] [stderr]     Checking rand_xorshift v0.3.0
[INFO] [stderr]     Checking unarray v0.1.4
[INFO] [stderr]     Checking socketcan v1.7.0
[INFO] [stderr]     Checking can v0.2.1-alpha.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking tempfile v3.10.1
[INFO] [stderr]     Checking rusty-fork v0.3.0
[INFO] [stderr]     Checking proptest v1.4.0
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.79s
[INFO] running `Command { std: "docker" "inspect" "7ea7acc5e11959f332cee41defe12dac6613b05045f4faad527e604afa1dd716", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ea7acc5e11959f332cee41defe12dac6613b05045f4faad527e604afa1dd716", kill_on_drop: false }`
[INFO] [stdout] 7ea7acc5e11959f332cee41defe12dac6613b05045f4faad527e604afa1dd716