[INFO] fetching crate optfield 0.4.0... [INFO] building optfield-0.4.0 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2 [INFO] extracting crate optfield 0.4.0 into /workspace/builds/worker-0-tc2/source [INFO] started tweaking crates.io crate optfield 0.4.0 [INFO] removed 0 missing tests [INFO] finished tweaking crates.io crate optfield 0.4.0 [INFO] tweaked toml for crates.io crate optfield 0.4.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate optfield 0.4.0 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 8 packages to latest compatible versions [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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 0d7452cbc3dd4cdc7eedd352a55fb7bba876bb607ddf3353b91d7f9e1895422a [INFO] running `Command { std: "docker" "start" "-a" "0d7452cbc3dd4cdc7eedd352a55fb7bba876bb607ddf3353b91d7f9e1895422a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0d7452cbc3dd4cdc7eedd352a55fb7bba876bb607ddf3353b91d7f9e1895422a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0d7452cbc3dd4cdc7eedd352a55fb7bba876bb607ddf3353b91d7f9e1895422a", kill_on_drop: false }` [INFO] [stdout] 0d7452cbc3dd4cdc7eedd352a55fb7bba876bb607ddf3353b91d7f9e1895422a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] dc79571af0640e6ece0c55377dc6abba187c9f56ce8257bad78a5b1b9fcf9b62 [INFO] running `Command { std: "docker" "start" "-a" "dc79571af0640e6ece0c55377dc6abba187c9f56ce8257bad78a5b1b9fcf9b62", kill_on_drop: false }` [INFO] [stderr] Compiling optfield v0.4.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.71s [INFO] running `Command { std: "docker" "inspect" "dc79571af0640e6ece0c55377dc6abba187c9f56ce8257bad78a5b1b9fcf9b62", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dc79571af0640e6ece0c55377dc6abba187c9f56ce8257bad78a5b1b9fcf9b62", kill_on_drop: false }` [INFO] [stdout] dc79571af0640e6ece0c55377dc6abba187c9f56ce8257bad78a5b1b9fcf9b62 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 1a770f2b44ec82138e330054094de4c49a97f7988fbb7f8489e1d2701ff7504e [INFO] running `Command { std: "docker" "start" "-a" "1a770f2b44ec82138e330054094de4c49a97f7988fbb7f8489e1d2701ff7504e", kill_on_drop: false }` [INFO] [stderr] Compiling syn v2.0.106 [INFO] [stderr] Compiling serde_derive v1.0.228 [INFO] [stderr] Compiling optfield v0.4.0 (/opt/rustwide/workdir) [INFO] [stderr] Compiling serde v1.0.228 [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 12.12s [INFO] running `Command { std: "docker" "inspect" "1a770f2b44ec82138e330054094de4c49a97f7988fbb7f8489e1d2701ff7504e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1a770f2b44ec82138e330054094de4c49a97f7988fbb7f8489e1d2701ff7504e", kill_on_drop: false }` [INFO] [stdout] 1a770f2b44ec82138e330054094de4c49a97f7988fbb7f8489e1d2701ff7504e