[INFO] fetching crate regalloc2 0.13.1...
[INFO] testing regalloc2-0.13.1 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] extracting crate regalloc2 0.13.1 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate regalloc2 0.13.1
[INFO] finished tweaking crates.io crate regalloc2 0.13.1
[INFO] tweaked toml for crates.io crate regalloc2 0.13.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate regalloc2 0.13.1 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] crate crates.io crate regalloc2 0.13.1 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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded arbitrary v1.1.3
[INFO] [stderr]   Downloaded libfuzzer-sys v0.4.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] a1eaade616c7a3307e682c9fef0bada50ae43fea6eddaaa35f2c4a25dcf11df8
[INFO] running `Command { std: "docker" "start" "-a" "a1eaade616c7a3307e682c9fef0bada50ae43fea6eddaaa35f2c4a25dcf11df8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a1eaade616c7a3307e682c9fef0bada50ae43fea6eddaaa35f2c4a25dcf11df8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1eaade616c7a3307e682c9fef0bada50ae43fea6eddaaa35f2c4a25dcf11df8", kill_on_drop: false }`
[INFO] [stdout] a1eaade616c7a3307e682c9fef0bada50ae43fea6eddaaa35f2c4a25dcf11df8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] c26051b55445491d10b6e941373e71d5f44ea79f51245c2d3d979c6a4dbecfde
[INFO] running `Command { std: "docker" "start" "-a" "c26051b55445491d10b6e941373e71d5f44ea79f51245c2d3d979c6a4dbecfde", kill_on_drop: false }`
[INFO] [stderr]    Compiling allocator-api2 v0.2.21
[INFO] [stderr]    Compiling rustc-hash v2.1.0
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling hashbrown v0.15.2
[INFO] [stderr]    Compiling bumpalo v3.16.0
[INFO] [stderr]    Compiling regalloc2 v0.13.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.21s
[INFO] running `Command { std: "docker" "inspect" "c26051b55445491d10b6e941373e71d5f44ea79f51245c2d3d979c6a4dbecfde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c26051b55445491d10b6e941373e71d5f44ea79f51245c2d3d979c6a4dbecfde", kill_on_drop: false }`
[INFO] [stdout] c26051b55445491d10b6e941373e71d5f44ea79f51245c2d3d979c6a4dbecfde
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 63e21d4b302fd15acd98549b829192771c47e7458f111d86aa45dfe2fff52a8f
[INFO] running `Command { std: "docker" "start" "-a" "63e21d4b302fd15acd98549b829192771c47e7458f111d86aa45dfe2fff52a8f", kill_on_drop: false }`
[INFO] [stderr]    Compiling regalloc2 v0.13.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 3.86s
[INFO] running `Command { std: "docker" "inspect" "63e21d4b302fd15acd98549b829192771c47e7458f111d86aa45dfe2fff52a8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63e21d4b302fd15acd98549b829192771c47e7458f111d86aa45dfe2fff52a8f", kill_on_drop: false }`
[INFO] [stdout] 63e21d4b302fd15acd98549b829192771c47e7458f111d86aa45dfe2fff52a8f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 9fc914cf3f77df747118fe123753ce9486feafde6c140f0087b118b0f541a0e4
[INFO] running `Command { std: "docker" "start" "-a" "9fc914cf3f77df747118fe123753ce9486feafde6c140f0087b118b0f541a0e4", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/regalloc2-88147ce770ebcda7)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test fastalloc::tests::test_debug_locations2 ... ok
[INFO] [stdout] test fastalloc::tests::test_debug_locations1 ... ok
[INFO] [stdout] test fastalloc::vregset::tests::empty ... ok
[INFO] [stdout] test index::test::test_inst_range ... ok
[INFO] [stdout] test fastalloc::vregset::tests::operations ... ok
[INFO] [stdout] test indexset::test::test_expand_remove_zero_elems ... ok
[INFO] [stdout] test indexset::test::test_set_bits_iter ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.12s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests regalloc2
[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" "9fc914cf3f77df747118fe123753ce9486feafde6c140f0087b118b0f541a0e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9fc914cf3f77df747118fe123753ce9486feafde6c140f0087b118b0f541a0e4", kill_on_drop: false }`
[INFO] [stdout] 9fc914cf3f77df747118fe123753ce9486feafde6c140f0087b118b0f541a0e4