[INFO] fetching crate opener 0.8.3...
[INFO] building opener-0.8.3 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate opener 0.8.3 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate opener 0.8.3
[INFO] finished tweaking crates.io crate opener 0.8.3
[INFO] tweaked toml for crates.io crate opener 0.8.3 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate opener 0.8.3 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 opener 0.8.3 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] 3818d52bddc621089942735068ae02155838859949be56b0e99cc2f74e3ecc2e
[INFO] running `Command { std: "docker" "start" "-a" "3818d52bddc621089942735068ae02155838859949be56b0e99cc2f74e3ecc2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3818d52bddc621089942735068ae02155838859949be56b0e99cc2f74e3ecc2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3818d52bddc621089942735068ae02155838859949be56b0e99cc2f74e3ecc2e", kill_on_drop: false }`
[INFO] [stdout] 3818d52bddc621089942735068ae02155838859949be56b0e99cc2f74e3ecc2e
[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] 081072f2633cee9c9ce8771b126f63747dc4b34cb301ed51ee7afc30134966f5
[INFO] running `Command { std: "docker" "start" "-a" "081072f2633cee9c9ce8771b126f63747dc4b34cb301ed51ee7afc30134966f5", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex-automata v0.4.10
[INFO] [stderr]    Compiling memchr v2.7.5
[INFO] [stderr]    Compiling bstr v1.12.0
[INFO] [stderr]    Compiling opener v0.8.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.35s
[INFO] running `Command { std: "docker" "inspect" "081072f2633cee9c9ce8771b126f63747dc4b34cb301ed51ee7afc30134966f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "081072f2633cee9c9ce8771b126f63747dc4b34cb301ed51ee7afc30134966f5", kill_on_drop: false }`
[INFO] [stdout] 081072f2633cee9c9ce8771b126f63747dc4b34cb301ed51ee7afc30134966f5
[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] e34f7a3d37c3e4a77d2bd70a042d15b913725340fc8348c7f7704f10932c4894
[INFO] running `Command { std: "docker" "start" "-a" "e34f7a3d37c3e4a77d2bd70a042d15b913725340fc8348c7f7704f10932c4894", kill_on_drop: false }`
[INFO] [stderr]    Compiling opener v0.8.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `Command { std: "docker" "inspect" "e34f7a3d37c3e4a77d2bd70a042d15b913725340fc8348c7f7704f10932c4894", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e34f7a3d37c3e4a77d2bd70a042d15b913725340fc8348c7f7704f10932c4894", kill_on_drop: false }`
[INFO] [stdout] e34f7a3d37c3e4a77d2bd70a042d15b913725340fc8348c7f7704f10932c4894