[INFO] fetching crate singleton-trait 0.3.0...
[INFO] testing singleton-trait-0.3.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate singleton-trait 0.3.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate singleton-trait 0.3.0 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate singleton-trait 0.3.0
[INFO] finished tweaking crates.io crate singleton-trait 0.3.0
[INFO] tweaked toml for crates.io crate singleton-trait 0.3.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate singleton-trait 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 744890429c6f867795ee86fb7a4216eb1fc04409ba660f7283c5a5845258104b
[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" "744890429c6f867795ee86fb7a4216eb1fc04409ba660f7283c5a5845258104b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "744890429c6f867795ee86fb7a4216eb1fc04409ba660f7283c5a5845258104b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "744890429c6f867795ee86fb7a4216eb1fc04409ba660f7283c5a5845258104b", kill_on_drop: false }`
[INFO] [stdout] 744890429c6f867795ee86fb7a4216eb1fc04409ba660f7283c5a5845258104b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c2c31f2abcab0a1d3890c8c1f9222df65f122983c9925ed7e06c246d3c54a67f
[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" "c2c31f2abcab0a1d3890c8c1f9222df65f122983c9925ed7e06c246d3c54a67f", kill_on_drop: false }`
[INFO] [stderr]    Compiling singleton-trait v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.11s
[INFO] running `Command { std: "docker" "inspect" "c2c31f2abcab0a1d3890c8c1f9222df65f122983c9925ed7e06c246d3c54a67f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2c31f2abcab0a1d3890c8c1f9222df65f122983c9925ed7e06c246d3c54a67f", kill_on_drop: false }`
[INFO] [stdout] c2c31f2abcab0a1d3890c8c1f9222df65f122983c9925ed7e06c246d3c54a67f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e34f1896525592e4ca8cf0345e0f7107c39a4e4f61cef43a0187b3ae0563483
[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" "9e34f1896525592e4ca8cf0345e0f7107c39a4e4f61cef43a0187b3ae0563483", kill_on_drop: false }`
[INFO] [stderr]    Compiling singleton-trait v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `Command { std: "docker" "inspect" "9e34f1896525592e4ca8cf0345e0f7107c39a4e4f61cef43a0187b3ae0563483", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e34f1896525592e4ca8cf0345e0f7107c39a4e4f61cef43a0187b3ae0563483", kill_on_drop: false }`
[INFO] [stdout] 9e34f1896525592e4ca8cf0345e0f7107c39a4e4f61cef43a0187b3ae0563483
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4827ea29e0be80e6104d882704bfca0d057522a2cc6fedde41616374c61d1980
[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" "4827ea29e0be80e6104d882704bfca0d057522a2cc6fedde41616374c61d1980", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/singleton_trait-e49408a1acfbb0ba)
[INFO] [stdout] test tests::test_impls ... ok
[INFO] [stderr]    Doc-tests singleton-trait
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/lib.rs - Erased<&'amutT>::reborrow (line 262) ... ok
[INFO] [stdout] test src/lib.rs - Erased<T>::borrow_mut (line 146) ... ok
[INFO] [stdout] test src/lib.rs - Erased<&'amutT>::read (line 288) ... ok
[INFO] [stdout] test src/lib.rs - Erased<&'amutT>::reborrow (line 272) ... ok
[INFO] [stdout] test src/lib.rs - Erased<&'amutT>::into_shared (line 315) ... ok
[INFO] [stdout] test src/lib.rs - Erased<T>::borrow (line 123) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.13s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4827ea29e0be80e6104d882704bfca0d057522a2cc6fedde41616374c61d1980", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4827ea29e0be80e6104d882704bfca0d057522a2cc6fedde41616374c61d1980", kill_on_drop: false }`
[INFO] [stdout] 4827ea29e0be80e6104d882704bfca0d057522a2cc6fedde41616374c61d1980