[INFO] fetching crate serde-mincode 0.1.5...
[INFO] building serde-mincode-0.1.5 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate serde-mincode 0.1.5 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate serde-mincode 0.1.5
[INFO] finished tweaking crates.io crate serde-mincode 0.1.5
[INFO] tweaked toml for crates.io crate serde-mincode 0.1.5 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate serde-mincode 0.1.5 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate serde-mincode 0.1.5 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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dd0e6b5dab07ef65faf175c11466f6bef3757e2b749f6bf57d925b56482384a9
[INFO] running `Command { std: "docker" "start" "-a" "dd0e6b5dab07ef65faf175c11466f6bef3757e2b749f6bf57d925b56482384a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dd0e6b5dab07ef65faf175c11466f6bef3757e2b749f6bf57d925b56482384a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd0e6b5dab07ef65faf175c11466f6bef3757e2b749f6bf57d925b56482384a9", kill_on_drop: false }`
[INFO] [stdout] dd0e6b5dab07ef65faf175c11466f6bef3757e2b749f6bf57d925b56482384a9
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dcf607e4d1f4a17a8ca57bd536561d1a959c27bcb7948e4bdf90045693a821e8
[INFO] running `Command { std: "docker" "start" "-a" "dcf607e4d1f4a17a8ca57bd536561d1a959c27bcb7948e4bdf90045693a821e8", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_core v1.0.223
[INFO] [stderr]    Compiling serde-mincode v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.11s
[INFO] running `Command { std: "docker" "inspect" "dcf607e4d1f4a17a8ca57bd536561d1a959c27bcb7948e4bdf90045693a821e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcf607e4d1f4a17a8ca57bd536561d1a959c27bcb7948e4bdf90045693a821e8", kill_on_drop: false }`
[INFO] [stdout] dcf607e4d1f4a17a8ca57bd536561d1a959c27bcb7948e4bdf90045693a821e8
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 66f35878e3bd1451e290384d94f6c2d843d44af5826c2b692c50c0150a0f3aca
[INFO] running `Command { std: "docker" "start" "-a" "66f35878e3bd1451e290384d94f6c2d843d44af5826c2b692c50c0150a0f3aca", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde-mincode v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `Command { std: "docker" "inspect" "66f35878e3bd1451e290384d94f6c2d843d44af5826c2b692c50c0150a0f3aca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66f35878e3bd1451e290384d94f6c2d843d44af5826c2b692c50c0150a0f3aca", kill_on_drop: false }`
[INFO] [stdout] 66f35878e3bd1451e290384d94f6c2d843d44af5826c2b692c50c0150a0f3aca