[INFO] fetching crate rgb2hex 0.3.0...
[INFO] building rgb2hex-0.3.0 against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] extracting crate rgb2hex 0.3.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate rgb2hex 0.3.0 on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rgb2hex 0.3.0
[INFO] finished tweaking crates.io crate rgb2hex 0.3.0
[INFO] tweaked toml for crates.io crate rgb2hex 0.3.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bd976e88d64efa16f28c6dd4cc12aa18bb9bc2ec73c516ad7bdc4b38bc3a0191
[INFO] running `Command { std: "docker" "start" "-a" "bd976e88d64efa16f28c6dd4cc12aa18bb9bc2ec73c516ad7bdc4b38bc3a0191", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bd976e88d64efa16f28c6dd4cc12aa18bb9bc2ec73c516ad7bdc4b38bc3a0191", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd976e88d64efa16f28c6dd4cc12aa18bb9bc2ec73c516ad7bdc4b38bc3a0191", kill_on_drop: false }`
[INFO] [stdout] bd976e88d64efa16f28c6dd4cc12aa18bb9bc2ec73c516ad7bdc4b38bc3a0191
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1cce59195efb423ade7dea174508028d8c9e6fee5a58fb88cf430b598654ce1e
[INFO] running `Command { std: "docker" "start" "-a" "1cce59195efb423ade7dea174508028d8c9e6fee5a58fb88cf430b598654ce1e", kill_on_drop: false }`
[INFO] [stderr]    Compiling rgb2hex v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "1cce59195efb423ade7dea174508028d8c9e6fee5a58fb88cf430b598654ce1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1cce59195efb423ade7dea174508028d8c9e6fee5a58fb88cf430b598654ce1e", kill_on_drop: false }`
[INFO] [stdout] 1cce59195efb423ade7dea174508028d8c9e6fee5a58fb88cf430b598654ce1e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f0e62b0c21115377d75deece464c5f664a8d6a828a55aaa4ce3051239026338c
[INFO] running `Command { std: "docker" "start" "-a" "f0e62b0c21115377d75deece464c5f664a8d6a828a55aaa4ce3051239026338c", kill_on_drop: false }`
[INFO] [stderr]    Compiling rgb2hex v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "f0e62b0c21115377d75deece464c5f664a8d6a828a55aaa4ce3051239026338c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0e62b0c21115377d75deece464c5f664a8d6a828a55aaa4ce3051239026338c", kill_on_drop: false }`
[INFO] [stdout] f0e62b0c21115377d75deece464c5f664a8d6a828a55aaa4ce3051239026338c