[INFO] fetching crate r_unit 0.1.8...
[INFO] building r_unit-0.1.8 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate r_unit 0.1.8 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate r_unit 0.1.8
[INFO] finished tweaking crates.io crate r_unit 0.1.8
[INFO] tweaked toml for crates.io crate r_unit 0.1.8 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate r_unit 0.1.8 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 r_unit 0.1.8 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] ae319ff81483d7f218f0b253499a4301a98208e67c541cb95260ed508d41a436
[INFO] running `Command { std: "docker" "start" "-a" "ae319ff81483d7f218f0b253499a4301a98208e67c541cb95260ed508d41a436", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae319ff81483d7f218f0b253499a4301a98208e67c541cb95260ed508d41a436", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae319ff81483d7f218f0b253499a4301a98208e67c541cb95260ed508d41a436", kill_on_drop: false }`
[INFO] [stdout] ae319ff81483d7f218f0b253499a4301a98208e67c541cb95260ed508d41a436
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 7d3c1d0615b6cbad73c2d4669df0d6d31e61fb3b0a6fcd4939448983ef1a1ca2
[INFO] running `Command { std: "docker" "start" "-a" "7d3c1d0615b6cbad73c2d4669df0d6d31e61fb3b0a6fcd4939448983ef1a1ca2", kill_on_drop: false }`
[INFO] [stderr]    Compiling r_unit v0.1.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "7d3c1d0615b6cbad73c2d4669df0d6d31e61fb3b0a6fcd4939448983ef1a1ca2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d3c1d0615b6cbad73c2d4669df0d6d31e61fb3b0a6fcd4939448983ef1a1ca2", kill_on_drop: false }`
[INFO] [stdout] 7d3c1d0615b6cbad73c2d4669df0d6d31e61fb3b0a6fcd4939448983ef1a1ca2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 4b95ea66b14a9754e429ccdc42d643abcf2baa68a7d1cb63f0c387cc64f03e3d
[INFO] running `Command { std: "docker" "start" "-a" "4b95ea66b14a9754e429ccdc42d643abcf2baa68a7d1cb63f0c387cc64f03e3d", kill_on_drop: false }`
[INFO] [stderr]    Compiling r_unit v0.1.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "4b95ea66b14a9754e429ccdc42d643abcf2baa68a7d1cb63f0c387cc64f03e3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b95ea66b14a9754e429ccdc42d643abcf2baa68a7d1cb63f0c387cc64f03e3d", kill_on_drop: false }`
[INFO] [stdout] 4b95ea66b14a9754e429ccdc42d643abcf2baa68a7d1cb63f0c387cc64f03e3d