[INFO] fetching crate rfgrep 0.4.0...
[INFO] checking rfgrep-0.4.0 against try#fcfb0ffc7ed7fc631df1136063939ef648434735 for pr-152543
[INFO] extracting crate rfgrep 0.4.0 into /workspace/builds/worker-4-tc2/source
[INFO] removed /workspace/builds/worker-4-tc2/source/.cargo/config.toml
[INFO] started tweaking crates.io crate rfgrep 0.4.0
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate rfgrep 0.4.0
[INFO] tweaked toml for crates.io crate rfgrep 0.4.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rfgrep 0.4.0 on toolchain fcfb0ffc7ed7fc631df1136063939ef648434735
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fcfb0ffc7ed7fc631df1136063939ef648434735" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rfgrep 0.4.0 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" "+fcfb0ffc7ed7fc631df1136063939ef648434735" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+fcfb0ffc7ed7fc631df1136063939ef648434735" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4653aa32d91f40613dd041587ec8fcbe4864244a858be7b8f17da96b53f31ab6
[INFO] running `Command { std: "docker" "start" "-a" "4653aa32d91f40613dd041587ec8fcbe4864244a858be7b8f17da96b53f31ab6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4653aa32d91f40613dd041587ec8fcbe4864244a858be7b8f17da96b53f31ab6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4653aa32d91f40613dd041587ec8fcbe4864244a858be7b8f17da96b53f31ab6", kill_on_drop: false }`
[INFO] [stdout] 4653aa32d91f40613dd041587ec8fcbe4864244a858be7b8f17da96b53f31ab6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+fcfb0ffc7ed7fc631df1136063939ef648434735" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f816fefc87ae1ab4cdae6bd69945db58a29a7cc7c64846ca9c32c8b60bf392a2
[INFO] running `Command { std: "docker" "start" "-a" "f816fefc87ae1ab4cdae6bd69945db58a29a7cc7c64846ca9c32c8b60bf392a2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
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[INFO] [stderr]    Compiling darling_macro v0.20.11
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[INFO] [stderr]    Compiling darling_macro v0.21.3
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[INFO] [stderr]     Checking proptest v1.8.0
[INFO] [stderr]     Checking hyper v1.7.0
[INFO] [stderr]     Checking rfgrep v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 41.61s
[INFO] running `Command { std: "docker" "inspect" "f816fefc87ae1ab4cdae6bd69945db58a29a7cc7c64846ca9c32c8b60bf392a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f816fefc87ae1ab4cdae6bd69945db58a29a7cc7c64846ca9c32c8b60bf392a2", kill_on_drop: false }`
[INFO] [stdout] f816fefc87ae1ab4cdae6bd69945db58a29a7cc7c64846ca9c32c8b60bf392a2