[INFO] fetching crate ref_wrapper 0.2.2...
[INFO] checking ref_wrapper-0.2.2 against master#a3f76a26e045a760bb1163b7eab36872985242d5 for pr-130930
[INFO] extracting crate ref_wrapper 0.2.2 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate ref_wrapper 0.2.2 on toolchain a3f76a26e045a760bb1163b7eab36872985242d5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a3f76a26e045a760bb1163b7eab36872985242d5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ref_wrapper 0.2.2
[INFO] finished tweaking crates.io crate ref_wrapper 0.2.2
[INFO] tweaked toml for crates.io crate ref_wrapper 0.2.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a3f76a26e045a760bb1163b7eab36872985242d5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a3f76a26e045a760bb1163b7eab36872985242d5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded drop_tracer v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+a3f76a26e045a760bb1163b7eab36872985242d5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 06f6c3258ec84394c621276e6a3d5e27a60f190485d226761e08b9b2a8ac70fa
[INFO] running `Command { std: "docker" "start" "-a" "06f6c3258ec84394c621276e6a3d5e27a60f190485d226761e08b9b2a8ac70fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "06f6c3258ec84394c621276e6a3d5e27a60f190485d226761e08b9b2a8ac70fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06f6c3258ec84394c621276e6a3d5e27a60f190485d226761e08b9b2a8ac70fa", kill_on_drop: false }`
[INFO] [stdout] 06f6c3258ec84394c621276e6a3d5e27a60f190485d226761e08b9b2a8ac70fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+a3f76a26e045a760bb1163b7eab36872985242d5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f12dd18ad48913c46942d2d5b99749fd823b9686d21b1919fc3f39edc2fe6be
[INFO] running `Command { std: "docker" "start" "-a" "5f12dd18ad48913c46942d2d5b99749fd823b9686d21b1919fc3f39edc2fe6be", kill_on_drop: false }`
[INFO] [stderr]     Checking drop_tracer v0.1.1
[INFO] [stderr]     Checking ref_wrapper v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "5f12dd18ad48913c46942d2d5b99749fd823b9686d21b1919fc3f39edc2fe6be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f12dd18ad48913c46942d2d5b99749fd823b9686d21b1919fc3f39edc2fe6be", kill_on_drop: false }`
[INFO] [stdout] 5f12dd18ad48913c46942d2d5b99749fd823b9686d21b1919fc3f39edc2fe6be