[INFO] cloning repository https://github.com/zalanlevai/mutest-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zalanlevai/mutest-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzalanlevai%2Fmutest-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzalanlevai%2Fmutest-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2c079ee82a0547cb1d9ba2365c6dcaf804321c50
[INFO] testing zalanlevai/mutest-rs against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzalanlevai%2Fmutest-rs" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zalanlevai/mutest-rs on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/zalanlevai/mutest-rs
[INFO] finished tweaking git repo https://github.com/zalanlevai/mutest-rs
[INFO] tweaked toml for git repo https://github.com/zalanlevai/mutest-rs written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/zalanlevai/mutest-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", 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] 0fe116476a4f6032bc0d452f3ff9c241f1a6733caede0518961e18fc16468e5b
[INFO] running `Command { std: "docker" "start" "-a" "0fe116476a4f6032bc0d452f3ff9c241f1a6733caede0518961e18fc16468e5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0fe116476a4f6032bc0d452f3ff9c241f1a6733caede0518961e18fc16468e5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fe116476a4f6032bc0d452f3ff9c241f1a6733caede0518961e18fc16468e5b", kill_on_drop: false }`
[INFO] [stdout] 0fe116476a4f6032bc0d452f3ff9c241f1a6733caede0518961e18fc16468e5b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--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] 873821a4a8e9fc4d93303634ca585736870ec74b0178cea59b16b6eed52108c3
[INFO] running `Command { std: "docker" "start" "-a" "873821a4a8e9fc4d93303634ca585736870ec74b0178cea59b16b6eed52108c3", kill_on_drop: false }`
[INFO] [stderr]    Compiling mutest v0.0.0 (/opt/rustwide/workdir/mutest)
[INFO] [stderr]    Compiling mutest-driver v0.0.0 (/opt/rustwide/workdir/mutest-driver)
[INFO] [stderr]    Compiling mutest-mutators v0.0.0 (/opt/rustwide/workdir/mutest-mutators)
[INFO] [stderr]    Compiling mutest-runtime v0.0.0 (/opt/rustwide/workdir/mutest-runtime)
[INFO] [stderr]    Compiling mutest-bridge v0.0.0 (/opt/rustwide/workdir/mutest-bridge)
[INFO] [stderr]    Compiling mutest-mutations v0.0.0 (/opt/rustwide/workdir/mutest-mutations)
[INFO] [stderr]    Compiling mutest-emit v0.0.0 (/opt/rustwide/workdir/mutest-emit)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.37s
[INFO] running `Command { std: "docker" "inspect" "873821a4a8e9fc4d93303634ca585736870ec74b0178cea59b16b6eed52108c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "873821a4a8e9fc4d93303634ca585736870ec74b0178cea59b16b6eed52108c3", kill_on_drop: false }`
[INFO] [stdout] 873821a4a8e9fc4d93303634ca585736870ec74b0178cea59b16b6eed52108c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3d3f32f481b035422eda905b0575ca5e4c546a23a9538530a6b64712200aac0e
[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" "3d3f32f481b035422eda905b0575ca5e4c546a23a9538530a6b64712200aac0e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling mutest-mutations v0.0.0 (/opt/rustwide/workdir/mutest-mutations)
[INFO] [stderr]    Compiling mutest-bridge v0.0.0 (/opt/rustwide/workdir/mutest-bridge)
[INFO] [stderr]    Compiling mutest-mutators v0.0.0 (/opt/rustwide/workdir/mutest-mutators)
[INFO] [stderr]    Compiling mutest-driver v0.0.0 (/opt/rustwide/workdir/mutest-driver)
[INFO] [stderr]    Compiling mutest-runtime v0.0.0 (/opt/rustwide/workdir/mutest-runtime)
[INFO] [stderr]    Compiling mutest v0.0.0 (/opt/rustwide/workdir/mutest)
[INFO] [stderr]    Compiling mutest-emit v0.0.0 (/opt/rustwide/workdir/mutest-emit)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.90s
[INFO] running `Command { std: "docker" "inspect" "3d3f32f481b035422eda905b0575ca5e4c546a23a9538530a6b64712200aac0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d3f32f481b035422eda905b0575ca5e4c546a23a9538530a6b64712200aac0e", kill_on_drop: false }`
[INFO] [stdout] 3d3f32f481b035422eda905b0575ca5e4c546a23a9538530a6b64712200aac0e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 172055de39a627fd4a39f0a0d4d9c37c3e64c0cc1fb51afa47f3ef47f6014e86
[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" "172055de39a627fd4a39f0a0d4d9c37c3e64c0cc1fb51afa47f3ef47f6014e86", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mutest-13e458459ddf7cfe)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mutest_bridge-ea9c8c4ff8184d4f)
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mutest_driver-e6c5c2a10229f2a8)
[INFO] [stdout] 
[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 unittests (/opt/rustwide/target/debug/deps/mutest_emit-a2011bea319edd03)
[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] [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 unittests (/opt/rustwide/target/debug/deps/mutest_mutations-a0ede5a97fef18e1)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mutest_mutators-92cef405080d2ec9)
[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] [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 unittests (/opt/rustwide/target/debug/deps/mutest_runtime-1e76f03e550863d8)
[INFO] [stderr]    Doc-tests mutest-bridge
[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] [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]    Doc-tests mutest-driver
[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]    Doc-tests mutest-emit
[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]    Doc-tests mutest-mutations
[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]    Doc-tests mutest-mutators
[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]    Doc-tests mutest-runtime
[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" "172055de39a627fd4a39f0a0d4d9c37c3e64c0cc1fb51afa47f3ef47f6014e86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "172055de39a627fd4a39f0a0d4d9c37c3e64c0cc1fb51afa47f3ef47f6014e86", kill_on_drop: false }`
[INFO] [stdout] 172055de39a627fd4a39f0a0d4d9c37c3e64c0cc1fb51afa47f3ef47f6014e86