[INFO] fetching crate claw 0.1.0-alpha2...
[INFO] checking claw-0.1.0-alpha2 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate claw 0.1.0-alpha2 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate claw 0.1.0-alpha2 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 claw 0.1.0-alpha2
[INFO] finished tweaking crates.io crate claw 0.1.0-alpha2
[INFO] tweaked toml for crates.io crate claw 0.1.0-alpha2 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate claw 0.1.0-alpha2 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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded simple-logging v2.0.2
[INFO] [stderr]   Downloaded log v0.4.8
[INFO] [stderr]   Downloaded libc v0.2.65
[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] 7b9d983a2dc980e33a0f12d618c54c5b260b27536b9b8a2b01d7129d32aea24e
[INFO] running `Command { std: "docker" "start" "-a" "7b9d983a2dc980e33a0f12d618c54c5b260b27536b9b8a2b01d7129d32aea24e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b9d983a2dc980e33a0f12d618c54c5b260b27536b9b8a2b01d7129d32aea24e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b9d983a2dc980e33a0f12d618c54c5b260b27536b9b8a2b01d7129d32aea24e", kill_on_drop: false }`
[INFO] [stdout] 7b9d983a2dc980e33a0f12d618c54c5b260b27536b9b8a2b01d7129d32aea24e
[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] 86e31425ea7339691a2ee20e5092d97d21efe44e4f3c045351c84df372cb366f
[INFO] running `Command { std: "docker" "start" "-a" "86e31425ea7339691a2ee20e5092d97d21efe44e4f3c045351c84df372cb366f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking regex-syntax v0.3.9
[INFO] [stderr]     Checking utf8-ranges v0.1.3
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking thread-id v3.3.0
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking simple-logging v2.0.2
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking claw v0.1.0-alpha2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.45s
[INFO] running `Command { std: "docker" "inspect" "86e31425ea7339691a2ee20e5092d97d21efe44e4f3c045351c84df372cb366f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86e31425ea7339691a2ee20e5092d97d21efe44e4f3c045351c84df372cb366f", kill_on_drop: false }`
[INFO] [stdout] 86e31425ea7339691a2ee20e5092d97d21efe44e4f3c045351c84df372cb366f