[INFO] fetching crate optimal 0.0.0...
[INFO] building optimal-0.0.0 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate optimal 0.0.0 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate optimal 0.0.0
[INFO] finished tweaking crates.io crate optimal 0.0.0
[INFO] tweaked toml for crates.io crate optimal 0.0.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate optimal 0.0.0 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 34 packages to latest compatible versions
[INFO] [stderr]       Adding rand_xoshiro v0.6.0 (available: v0.7.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded derive-getters v0.3.0
[INFO] [stderr]   Downloaded replace_with v0.1.8
[INFO] [stderr]   Downloaded blanket v0.3.0
[INFO] [stderr]   Downloaded streaming-iterator v0.1.9
[INFO] [stderr]   Downloaded optimal-pbil v0.0.0
[INFO] [stderr]   Downloaded derive-num-bounded v0.0.0
[INFO] [stderr]   Downloaded optimal-core v0.0.0
[INFO] [stderr]   Downloaded partial-min-max v0.4.0
[INFO] [stderr]   Downloaded optimal-steepest v0.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2ef333fe04a3929e852995f43eb76aa92fbd367e1cc61083649e77e13dda51b9
[INFO] running `Command { std: "docker" "start" "-a" "2ef333fe04a3929e852995f43eb76aa92fbd367e1cc61083649e77e13dda51b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ef333fe04a3929e852995f43eb76aa92fbd367e1cc61083649e77e13dda51b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ef333fe04a3929e852995f43eb76aa92fbd367e1cc61083649e77e13dda51b9", kill_on_drop: false }`
[INFO] [stdout] 2ef333fe04a3929e852995f43eb76aa92fbd367e1cc61083649e77e13dda51b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "-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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 23e7af36565b9a3f74454920a2aab5a215223e127519e360babf0bf21418bca8
[INFO] running `Command { std: "docker" "start" "-a" "23e7af36565b9a3f74454920a2aab5a215223e127519e360babf0bf21418bca8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.176
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling streaming-iterator v0.1.9
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]    Compiling replace_with v0.1.8
[INFO] [stderr]    Compiling partial-min-max v0.4.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling blanket v0.3.0
[INFO] [stderr]    Compiling derive_more v0.99.20
[INFO] [stderr]    Compiling optimal-core v0.0.0
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling derive-num-bounded v0.0.0
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand_xoshiro v0.6.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling derive-getters v0.3.0
[INFO] [stderr]    Compiling optimal-steepest v0.0.0
[INFO] [stderr]    Compiling optimal-pbil v0.0.0
[INFO] [stderr]    Compiling optimal v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.76s
[INFO] running `Command { std: "docker" "inspect" "23e7af36565b9a3f74454920a2aab5a215223e127519e360babf0bf21418bca8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23e7af36565b9a3f74454920a2aab5a215223e127519e360babf0bf21418bca8", kill_on_drop: false }`
[INFO] [stdout] 23e7af36565b9a3f74454920a2aab5a215223e127519e360babf0bf21418bca8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "-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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fe7083438776d1f6db191d486bd3103407d926e6024db9dd6692285efdda2e92
[INFO] running `Command { std: "docker" "start" "-a" "fe7083438776d1f6db191d486bd3103407d926e6024db9dd6692285efdda2e92", kill_on_drop: false }`
[INFO] [stderr]    Compiling optimal v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "fe7083438776d1f6db191d486bd3103407d926e6024db9dd6692285efdda2e92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe7083438776d1f6db191d486bd3103407d926e6024db9dd6692285efdda2e92", kill_on_drop: false }`
[INFO] [stdout] fe7083438776d1f6db191d486bd3103407d926e6024db9dd6692285efdda2e92