[INFO] fetching crate isomer 0.0.0...
[INFO] testing isomer-0.0.0 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] extracting crate isomer 0.0.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate isomer 0.0.0
[INFO] finished tweaking crates.io crate isomer 0.0.0
[INFO] tweaked toml for crates.io crate isomer 0.0.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate isomer 0.0.0 on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 20 packages to latest compatible versions
[INFO] [stderr]       Adding dashu v0.3.1 (available: v0.4.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded dashu-ratio v0.3.2
[INFO] [stderr]   Downloaded dashu-macros v0.3.1
[INFO] [stderr]   Downloaded dashu v0.3.1
[INFO] [stderr]   Downloaded dashu-base v0.3.1
[INFO] [stderr]   Downloaded dashu-float v0.3.2
[INFO] [stderr]   Downloaded dashu-int v0.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 37ebad6f91cd7de472083ce776fa95c1fc468258b9c7aee18a73fdfec773b33d
[INFO] running `Command { std: "docker" "start" "-a" "37ebad6f91cd7de472083ce776fa95c1fc468258b9c7aee18a73fdfec773b33d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "37ebad6f91cd7de472083ce776fa95c1fc468258b9c7aee18a73fdfec773b33d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37ebad6f91cd7de472083ce776fa95c1fc468258b9c7aee18a73fdfec773b33d", kill_on_drop: false }`
[INFO] [stdout] 37ebad6f91cd7de472083ce776fa95c1fc468258b9c7aee18a73fdfec773b33d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 081a427b5f77006912295d9c30c5b20b5a2f0692a6ba3ffc4875aa3bff9fb231
[INFO] running `Command { std: "docker" "start" "-a" "081a427b5f77006912295d9c30c5b20b5a2f0692a6ba3ffc4875aa3bff9fb231", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling num-modular v0.6.1
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling dashu-base v0.3.1
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling num-order v1.2.0
[INFO] [stderr]    Compiling crossbeam-skiplist v0.1.3
[INFO] [stderr]    Compiling dashu-int v0.3.1
[INFO] [stderr]    Compiling dashu-float v0.3.2
[INFO] [stderr]    Compiling dashu-ratio v0.3.2
[INFO] [stderr]    Compiling dashu-macros v0.3.1
[INFO] [stderr]    Compiling dashu v0.3.1
[INFO] [stderr]    Compiling isomer v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.99s
[INFO] running `Command { std: "docker" "inspect" "081a427b5f77006912295d9c30c5b20b5a2f0692a6ba3ffc4875aa3bff9fb231", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "081a427b5f77006912295d9c30c5b20b5a2f0692a6ba3ffc4875aa3bff9fb231", kill_on_drop: false }`
[INFO] [stdout] 081a427b5f77006912295d9c30c5b20b5a2f0692a6ba3ffc4875aa3bff9fb231
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7eb8ca35d7c2311803fe7fa8b9ac48970c9a6ee1f90f2c9935f2dca3d816f9ef
[INFO] running `Command { std: "docker" "start" "-a" "7eb8ca35d7c2311803fe7fa8b9ac48970c9a6ee1f90f2c9935f2dca3d816f9ef", kill_on_drop: false }`
[INFO] [stderr]    Compiling isomer v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "7eb8ca35d7c2311803fe7fa8b9ac48970c9a6ee1f90f2c9935f2dca3d816f9ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7eb8ca35d7c2311803fe7fa8b9ac48970c9a6ee1f90f2c9935f2dca3d816f9ef", kill_on_drop: false }`
[INFO] [stdout] 7eb8ca35d7c2311803fe7fa8b9ac48970c9a6ee1f90f2c9935f2dca3d816f9ef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0aa600504f85bb2825cd323c6ba02b62fb23cd8b45b51b74095a43d2e934fb43
[INFO] running `Command { std: "docker" "start" "-a" "0aa600504f85bb2825cd323c6ba02b62fb23cd8b45b51b74095a43d2e934fb43", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/isomer-b8f71594df5e95eb)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/main.rs (/opt/rustwide/target/debug/deps/main-a6bfc0f7b4cb6323)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test ready ... ok
[INFO] [stdout] test count ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests isomer
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0aa600504f85bb2825cd323c6ba02b62fb23cd8b45b51b74095a43d2e934fb43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0aa600504f85bb2825cd323c6ba02b62fb23cd8b45b51b74095a43d2e934fb43", kill_on_drop: false }`
[INFO] [stdout] 0aa600504f85bb2825cd323c6ba02b62fb23cd8b45b51b74095a43d2e934fb43