[INFO] fetching crate serdeio 0.4.0...
[INFO] checking serdeio-0.4.0 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] extracting crate serdeio 0.4.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate serdeio 0.4.0 on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serdeio 0.4.0
[INFO] finished tweaking crates.io crate serdeio 0.4.0
[INFO] tweaked toml for crates.io crate serdeio 0.4.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate serdeio 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b77c5075544498a91d6f02b601f32337d5984dcf2301e554f85d8daf64c0a8d3
[INFO] running `Command { std: "docker" "start" "-a" "b77c5075544498a91d6f02b601f32337d5984dcf2301e554f85d8daf64c0a8d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b77c5075544498a91d6f02b601f32337d5984dcf2301e554f85d8daf64c0a8d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b77c5075544498a91d6f02b601f32337d5984dcf2301e554f85d8daf64c0a8d3", kill_on_drop: false }`
[INFO] [stdout] b77c5075544498a91d6f02b601f32337d5984dcf2301e554f85d8daf64c0a8d3
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a086834c3e47d591e1362b2d612c573658297a8192531cc9ad066de9db144369
[INFO] running `Command { std: "docker" "start" "-a" "a086834c3e47d591e1362b2d612c573658297a8192531cc9ad066de9db144369", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling anyhow v1.0.75
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.37
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]     Checking serde v1.0.188
[INFO] [stderr]     Checking serde_json v1.0.107
[INFO] [stderr]     Checking serdeio v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.71s
[INFO] running `Command { std: "docker" "inspect" "a086834c3e47d591e1362b2d612c573658297a8192531cc9ad066de9db144369", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a086834c3e47d591e1362b2d612c573658297a8192531cc9ad066de9db144369", kill_on_drop: false }`
[INFO] [stdout] a086834c3e47d591e1362b2d612c573658297a8192531cc9ad066de9db144369