[INFO] fetching crate sample_crate 0.1.0...
[INFO] checking sample_crate-0.1.0 against try#fcfb0ffc7ed7fc631df1136063939ef648434735 for pr-152543
[INFO] extracting crate sample_crate 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate sample_crate 0.1.0
[INFO] finished tweaking crates.io crate sample_crate 0.1.0
[INFO] tweaked toml for crates.io crate sample_crate 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate sample_crate 0.1.0 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 sample_crate 0.1.0 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] e7eeb661e212a4d31b937e5834816502acaa47319c63582fe852464d2e36b2ca
[INFO] running `Command { std: "docker" "start" "-a" "e7eeb661e212a4d31b937e5834816502acaa47319c63582fe852464d2e36b2ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7eeb661e212a4d31b937e5834816502acaa47319c63582fe852464d2e36b2ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7eeb661e212a4d31b937e5834816502acaa47319c63582fe852464d2e36b2ca", kill_on_drop: false }`
[INFO] [stdout] e7eeb661e212a4d31b937e5834816502acaa47319c63582fe852464d2e36b2ca
[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] 87f5168a24104111365e2b89a3097ed927050017ad14401fa225e70235eeeb8f
[INFO] running `Command { std: "docker" "start" "-a" "87f5168a24104111365e2b89a3097ed927050017ad14401fa225e70235eeeb8f", kill_on_drop: false }`
[INFO] [stderr]     Checking sample_crate v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "87f5168a24104111365e2b89a3097ed927050017ad14401fa225e70235eeeb8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87f5168a24104111365e2b89a3097ed927050017ad14401fa225e70235eeeb8f", kill_on_drop: false }`
[INFO] [stdout] 87f5168a24104111365e2b89a3097ed927050017ad14401fa225e70235eeeb8f