[INFO] fetching crate rational_extensions 0.4.7...
[INFO] building rational_extensions-0.4.7 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate rational_extensions 0.4.7 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate rational_extensions 0.4.7
[INFO] finished tweaking crates.io crate rational_extensions 0.4.7
[INFO] tweaked toml for crates.io crate rational_extensions 0.4.7 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rational_extensions 0.4.7 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] crate crates.io crate rational_extensions 0.4.7 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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 36d29b356a28253efbe947b70afc87c3aed56e05f962dc608c577166b87905b1
[INFO] running `Command { std: "docker" "start" "-a" "36d29b356a28253efbe947b70afc87c3aed56e05f962dc608c577166b87905b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "36d29b356a28253efbe947b70afc87c3aed56e05f962dc608c577166b87905b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36d29b356a28253efbe947b70afc87c3aed56e05f962dc608c577166b87905b1", kill_on_drop: false }`
[INFO] [stdout] 36d29b356a28253efbe947b70afc87c3aed56e05f962dc608c577166b87905b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 39fce34e6483c370131fefef7a1cccf6bbcaf4e91424694d29b3afe3234a00da
[INFO] running `Command { std: "docker" "start" "-a" "39fce34e6483c370131fefef7a1cccf6bbcaf4e91424694d29b3afe3234a00da", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling num-rational v0.4.2
[INFO] [stderr]    Compiling rational_extensions v0.4.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.36s
[INFO] running `Command { std: "docker" "inspect" "39fce34e6483c370131fefef7a1cccf6bbcaf4e91424694d29b3afe3234a00da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39fce34e6483c370131fefef7a1cccf6bbcaf4e91424694d29b3afe3234a00da", kill_on_drop: false }`
[INFO] [stdout] 39fce34e6483c370131fefef7a1cccf6bbcaf4e91424694d29b3afe3234a00da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 14d90123d94f7cdb8a01d63c0beba94e315e082e44e93be3e4f713ac7aa765d5
[INFO] running `Command { std: "docker" "start" "-a" "14d90123d94f7cdb8a01d63c0beba94e315e082e44e93be3e4f713ac7aa765d5", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling serde_json v1.0.143
[INFO] [stderr]    Compiling memchr v2.7.5
[INFO] [stderr]    Compiling rational_extensions v0.4.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 7.26s
[INFO] running `Command { std: "docker" "inspect" "14d90123d94f7cdb8a01d63c0beba94e315e082e44e93be3e4f713ac7aa765d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14d90123d94f7cdb8a01d63c0beba94e315e082e44e93be3e4f713ac7aa765d5", kill_on_drop: false }`
[INFO] [stdout] 14d90123d94f7cdb8a01d63c0beba94e315e082e44e93be3e4f713ac7aa765d5