[INFO] fetching crate combobox-rs 0.0.0...
[INFO] checking combobox-rs-0.0.0 against master#d8810e3e2dab96778d20dd6d746ff95465515509 for pr-137045
[INFO] extracting crate combobox-rs 0.0.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate combobox-rs 0.0.0 on toolchain d8810e3e2dab96778d20dd6d746ff95465515509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d8810e3e2dab96778d20dd6d746ff95465515509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate combobox-rs 0.0.0
[INFO] finished tweaking crates.io crate combobox-rs 0.0.0
[INFO] tweaked toml for crates.io crate combobox-rs 0.0.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate combobox-rs 0.0.0 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" "+d8810e3e2dab96778d20dd6d746ff95465515509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+d8810e3e2dab96778d20dd6d746ff95465515509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4d0da4207514e41671cfbf3947ef924bf18cf6d78089983a2ea1b2bd9293f6b4
[INFO] running `Command { std: "docker" "start" "-a" "4d0da4207514e41671cfbf3947ef924bf18cf6d78089983a2ea1b2bd9293f6b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d0da4207514e41671cfbf3947ef924bf18cf6d78089983a2ea1b2bd9293f6b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d0da4207514e41671cfbf3947ef924bf18cf6d78089983a2ea1b2bd9293f6b4", kill_on_drop: false }`
[INFO] [stdout] 4d0da4207514e41671cfbf3947ef924bf18cf6d78089983a2ea1b2bd9293f6b4
[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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+d8810e3e2dab96778d20dd6d746ff95465515509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a14e8e5072619b58f366602439535e97b3226aca78f10a12f17936ba9d0454d6
[INFO] running `Command { std: "docker" "start" "-a" "a14e8e5072619b58f366602439535e97b3226aca78f10a12f17936ba9d0454d6", kill_on_drop: false }`
[INFO] [stderr]     Checking combobox-rs v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] running `Command { std: "docker" "inspect" "a14e8e5072619b58f366602439535e97b3226aca78f10a12f17936ba9d0454d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a14e8e5072619b58f366602439535e97b3226aca78f10a12f17936ba9d0454d6", kill_on_drop: false }`
[INFO] [stdout] a14e8e5072619b58f366602439535e97b3226aca78f10a12f17936ba9d0454d6