[INFO] fetching crate cranelift-frontend 0.75.0...
[INFO] testing cranelift-frontend-0.75.0 against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] extracting crate cranelift-frontend 0.75.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate cranelift-frontend 0.75.0 on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cranelift-frontend 0.75.0
[INFO] finished tweaking crates.io crate cranelift-frontend 0.75.0
[INFO] tweaked toml for crates.io crate cranelift-frontend 0.75.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 57c27814f81c236cbe9498ed331fc9b8d69298daf5f9af56c36a318f747221c3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "57c27814f81c236cbe9498ed331fc9b8d69298daf5f9af56c36a318f747221c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "57c27814f81c236cbe9498ed331fc9b8d69298daf5f9af56c36a318f747221c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57c27814f81c236cbe9498ed331fc9b8d69298daf5f9af56c36a318f747221c3", kill_on_drop: false }`
[INFO] [stdout] 57c27814f81c236cbe9498ed331fc9b8d69298daf5f9af56c36a318f747221c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8aba39355fa90e7a76bd4bd5affc8d95c8c4c8f2ab769439cfae566d0c667145
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8aba39355fa90e7a76bd4bd5affc8d95c8c4c8f2ab769439cfae566d0c667145", kill_on_drop: false }`
[INFO] [stderr]    Compiling cranelift-entity v0.75.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.75.0
[INFO] [stderr]    Compiling target-lexicon v0.12.1
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.75.0
[INFO] [stderr]    Compiling cranelift-bforest v0.75.0
[INFO] [stderr]    Compiling regalloc v0.0.31
[INFO] [stderr]    Compiling cranelift-codegen v0.75.0
[INFO] [stderr]    Compiling cranelift-frontend v0.75.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.73s
[INFO] running `Command { std: "docker" "inspect" "8aba39355fa90e7a76bd4bd5affc8d95c8c4c8f2ab769439cfae566d0c667145", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8aba39355fa90e7a76bd4bd5affc8d95c8c4c8f2ab769439cfae566d0c667145", kill_on_drop: false }`
[INFO] [stdout] 8aba39355fa90e7a76bd4bd5affc8d95c8c4c8f2ab769439cfae566d0c667145
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0caec29f2e6dd6b07682650a652f2d90eeafb23ce84aa7803792c108810090cb
[INFO] running `Command { std: "docker" "start" "-a" "0caec29f2e6dd6b07682650a652f2d90eeafb23ce84aa7803792c108810090cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling cranelift-frontend v0.75.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.59s
[INFO] running `Command { std: "docker" "inspect" "0caec29f2e6dd6b07682650a652f2d90eeafb23ce84aa7803792c108810090cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0caec29f2e6dd6b07682650a652f2d90eeafb23ce84aa7803792c108810090cb", kill_on_drop: false }`
[INFO] [stdout] 0caec29f2e6dd6b07682650a652f2d90eeafb23ce84aa7803792c108810090cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 63e0856283ff7b3827cd13e9563369a4bc9898b18892ded5e63bfe48ebeb5ac0
[INFO] running `Command { std: "docker" "start" "-a" "63e0856283ff7b3827cd13e9563369a4bc9898b18892ded5e63bfe48ebeb5ac0", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/cranelift_frontend-bc3976ae30607648)
[INFO] [stdout] 
[INFO] [stdout] running 30 tests
[INFO] [stdout] test frontend::tests::test_greatest_divisible_power_of_two ... ok
[INFO] [stdout] test frontend::tests::not_so_small_memset ... ok
[INFO] [stdout] test frontend::tests::memcpy ... ok
[INFO] [stdout] test frontend::tests::small_memset ... ok
[INFO] [stdout] test ssa::tests::undef ... ok
[INFO] [stdout] test ssa::tests::undef_values_reordering ... ok
[INFO] [stdout] test ssa::tests::sequence_of_blocks ... ok
[INFO] [stdout] test ssa::tests::br_table_with_args ... ok
[INFO] [stdout] test ssa::tests::simple_block ... ok
[INFO] [stdout] test ssa::tests::undef_in_entry ... ok
[INFO] [stdout] test frontend::tests::sample ... ok
[INFO] [stdout] test ssa::tests::unreachable_use ... ok
[INFO] [stdout] test frontend::tests::sample_with_lazy_seal ... ok
[INFO] [stdout] test switch::tests::switch_optimal_codegen ... ok
[INFO] [stdout] test switch::tests::switch_single ... ok
[INFO] [stdout] test frontend::tests::small_memcpy ... ok
[INFO] [stdout] test switch::tests::switch_two_gap ... ok
[INFO] [stdout] test switch::tests::switch_many ... ok
[INFO] [stdout] test ssa::tests::undef_in_entry_sealed_after ... ok
[INFO] [stdout] test ssa::tests::program_with_loop ... ok
[INFO] [stdout] test switch::tests::switch_zero ... ok
[INFO] [stdout] test switch::tests::switch_max_index_value ... ok
[INFO] [stdout] test switch::tests::switch_min_index_value ... ok
[INFO] [stdout] test switch::tests::switch_bool ... ok
[INFO] [stdout] test switch::tests::switch_64bit ... ok
[INFO] [stdout] test frontend::tests::not_so_small_memcpy ... ok
[INFO] [stdout] test switch::tests::switch_seal_generated_blocks ... ok
[INFO] [stdout] test frontend::tests::undef_vector_vars ... ok
[INFO] [stdout] test switch::tests::switch_128bit ... ok
[INFO] [stdout] test ssa::tests::unreachable_use_with_multiple_preds ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 30 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests cranelift-frontend
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/switch.rs - switch::Switch (line 16) ... ok
[INFO] [stdout] test src/lib.rs - (line 66) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.79s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "63e0856283ff7b3827cd13e9563369a4bc9898b18892ded5e63bfe48ebeb5ac0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63e0856283ff7b3827cd13e9563369a4bc9898b18892ded5e63bfe48ebeb5ac0", kill_on_drop: false }`
[INFO] [stdout] 63e0856283ff7b3827cd13e9563369a4bc9898b18892ded5e63bfe48ebeb5ac0