[INFO] fetching crate mutate_once 0.1.1...
[INFO] testing mutate_once-0.1.1 against 1.54.0 for beta-1.55-1
[INFO] extracting crate mutate_once 0.1.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate mutate_once 0.1.1 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mutate_once 0.1.1
[INFO] finished tweaking crates.io crate mutate_once 0.1.1
[INFO] tweaked toml for crates.io crate mutate_once 0.1.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6f5ed98796aa6d8af460321460ea8011a97a22f73db7e9a536eacd00637a4ce3
[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" "6f5ed98796aa6d8af460321460ea8011a97a22f73db7e9a536eacd00637a4ce3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f5ed98796aa6d8af460321460ea8011a97a22f73db7e9a536eacd00637a4ce3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f5ed98796aa6d8af460321460ea8011a97a22f73db7e9a536eacd00637a4ce3", kill_on_drop: false }`
[INFO] [stdout] 6f5ed98796aa6d8af460321460ea8011a97a22f73db7e9a536eacd00637a4ce3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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" "+1.54.0" "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] 0060856d6d73092d0919f52800ccbf6ddcb2888454f1bfcecc9bc3c62317b914
[INFO] running `Command { std: "docker" "start" "-a" "0060856d6d73092d0919f52800ccbf6ddcb2888454f1bfcecc9bc3c62317b914", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling mutate_once v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "0060856d6d73092d0919f52800ccbf6ddcb2888454f1bfcecc9bc3c62317b914", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0060856d6d73092d0919f52800ccbf6ddcb2888454f1bfcecc9bc3c62317b914", kill_on_drop: false }`
[INFO] [stdout] 0060856d6d73092d0919f52800ccbf6ddcb2888454f1bfcecc9bc3c62317b914
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3946d09703983978f0e08c20b41c6fe8db7ee34ac363d8ead0100196394d4352
[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" "3946d09703983978f0e08c20b41c6fe8db7ee34ac363d8ead0100196394d4352", kill_on_drop: false }`
[INFO] [stderr]    Compiling mutate_once v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `Command { std: "docker" "inspect" "3946d09703983978f0e08c20b41c6fe8db7ee34ac363d8ead0100196394d4352", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3946d09703983978f0e08c20b41c6fe8db7ee34ac363d8ead0100196394d4352", kill_on_drop: false }`
[INFO] [stdout] 3946d09703983978f0e08c20b41c6fe8db7ee34ac363d8ead0100196394d4352
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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" "+1.54.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d7ae4a7a0c874ce17ac032ada73dc0e5a41892325915d09aec8b28aa370801bc
[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" "d7ae4a7a0c874ce17ac032ada73dc0e5a41892325915d09aec8b28aa370801bc", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mutate_once-8c91986d1ebc3f1d)
[INFO] [stdout] running 9 tests
[INFO] [stdout] test tests::from ... ok
[INFO] [stdout] test tests::into_inner ... ok
[INFO] [stdout] test tests::multiple_refs ... ok
[INFO] [stdout] test tests::repeated_muts ... ok
[INFO] [stdout] test tests::default ... ok
[INFO] [stdout] test tests::temporary_value ... ok
[INFO] [stdout] test tests::multiple_muts - should panic ... ok
[INFO] [stdout] test tests::mut_after_ref - should panic ... ok
[INFO] [stdout] test tests::ref_while_mut - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/getter.rs (/opt/rustwide/target/debug/deps/getter-a62c0a3771fdf639)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test single ... ok
[INFO] [stdout] test collection ... 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 mutate_once
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/lib.rs - MutOnce<T>::get_ref (line 152) ... ok
[INFO] [stdout] test src/lib.rs - MutOnce<T>::get_mut (line 117) ... ok
[INFO] [stdout] test src/lib.rs - MutOnce<T>::get_mut (line 125) ... ok
[INFO] [stdout] test src/lib.rs - MutOnce (line 59) ... ok
[INFO] [stdout] test src/lib.rs - MutOnce<T>::get_ref (line 160) ... ok
[INFO] [stdout] test src/lib.rs - MutOnce<T>::get_mut (line 108) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.51s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d7ae4a7a0c874ce17ac032ada73dc0e5a41892325915d09aec8b28aa370801bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7ae4a7a0c874ce17ac032ada73dc0e5a41892325915d09aec8b28aa370801bc", kill_on_drop: false }`
[INFO] [stdout] d7ae4a7a0c874ce17ac032ada73dc0e5a41892325915d09aec8b28aa370801bc
