[INFO] fetching crate sloth 0.2.0...
[INFO] testing sloth-0.2.0 against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] extracting crate sloth 0.2.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate sloth 0.2.0 on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sloth 0.2.0
[INFO] finished tweaking crates.io crate sloth 0.2.0
[INFO] tweaked toml for crates.io crate sloth 0.2.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "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] 4fd43a1e193023811d1175f226e4f2c85e7a951524365555e5d59cbd0c61e189
[INFO] running `Command { std: "docker" "start" "-a" "4fd43a1e193023811d1175f226e4f2c85e7a951524365555e5d59cbd0c61e189", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4fd43a1e193023811d1175f226e4f2c85e7a951524365555e5d59cbd0c61e189", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fd43a1e193023811d1175f226e4f2c85e7a951524365555e5d59cbd0c61e189", kill_on_drop: false }`
[INFO] [stdout] 4fd43a1e193023811d1175f226e4f2c85e7a951524365555e5d59cbd0c61e189
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4bb92ddd99aeaf7c6c17a929f85176fb6510c9a19e41d3e8a69189a6cf32c12b
[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" "4bb92ddd99aeaf7c6c17a929f85176fb6510c9a19e41d3e8a69189a6cf32c12b", kill_on_drop: false }`
[INFO] [stderr]    Compiling sloth v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "4bb92ddd99aeaf7c6c17a929f85176fb6510c9a19e41d3e8a69189a6cf32c12b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bb92ddd99aeaf7c6c17a929f85176fb6510c9a19e41d3e8a69189a6cf32c12b", kill_on_drop: false }`
[INFO] [stdout] 4bb92ddd99aeaf7c6c17a929f85176fb6510c9a19e41d3e8a69189a6cf32c12b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "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] 1e488c5135ce2751706d5713eb224aee9b35aa02918dc58a9b5f916a2c756b30
[INFO] running `Command { std: "docker" "start" "-a" "1e488c5135ce2751706d5713eb224aee9b35aa02918dc58a9b5f916a2c756b30", kill_on_drop: false }`
[INFO] [stderr]    Compiling sloth v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.72s
[INFO] running `Command { std: "docker" "inspect" "1e488c5135ce2751706d5713eb224aee9b35aa02918dc58a9b5f916a2c756b30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e488c5135ce2751706d5713eb224aee9b35aa02918dc58a9b5f916a2c756b30", kill_on_drop: false }`
[INFO] [stdout] 1e488c5135ce2751706d5713eb224aee9b35aa02918dc58a9b5f916a2c756b30
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6ac3f2d2519780a92ed1b0f564e515e92639ff56d5af16000d587f83f7136e43
[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" "6ac3f2d2519780a92ed1b0f564e515e92639ff56d5af16000d587f83f7136e43", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/sloth-ae0c7d647df58c38
[INFO] [stdout] running 27 tests
[INFO] [stderr]    Doc-tests sloth
[INFO] [stdout] test tests::lazy_evaluator_called_once ... ok
[INFO] [stdout] test tests::lazy_init_borrow_mut ... ok
[INFO] [stdout] test tests::lazy_init_deref ... ok
[INFO] [stdout] test tests::lazy_init_unwrap ... ok
[INFO] [stdout] test tests::lazy_init_value ... ok
[INFO] [stdout] test tests::lazy_init_value_mut ... ok
[INFO] [stdout] test tests::lazy_int_value_modification_borrow_mut ... ok
[INFO] [stdout] test tests::lazy_int_value_modification_deref_mut ... ok
[INFO] [stdout] test tests::lazy_int_value_modification_value_mut ... ok
[INFO] [stdout] test tests::lazy_int_value_retrieval ... ok
[INFO] [stdout] test tests::lazy_init_as_mut ... ok
[INFO] [stdout] test tests::lazy_str_value_modification_deref_mut ... ok
[INFO] [stdout] test tests::lazy_str_value_retrieval ... ok
[INFO] [stdout] test tests::lazy_string_value_modification_borrow_mut ... ok
[INFO] [stdout] test tests::lazy_str_value_modification_value_mut ... ok
[INFO] [stdout] test tests::lazy_string_value_modification_deref_mut ... ok
[INFO] [stdout] test tests::lazy_string_value_modification_value_mut ... ok
[INFO] [stdout] test tests::lazy_string_value_retrieval ... ok
[INFO] [stdout] test tests::lazy_value_drop_if_used ... ok
[INFO] [stdout] test tests::lazy_str_value_modification_borrow_mut ... ok
[INFO] [stdout] test tests::lazy_value_no_drop_if_unused ... ok
[INFO] [stdout] test tests::lazy_init_value_ref ... ok
[INFO] [stdout] test tests::lazy_value_no_drop_on_unwrap ... ok
[INFO] [stdout] test tests::lazy_init_deref_mut ... ok
[INFO] [stdout] test tests::lazy_init_borrow ... ok
[INFO] [stdout] test tests::lazy_init_as_ref ... ok
[INFO] [stdout] test tests::lazy_evaluator_never_called_if_unused ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 27 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/lib.rs - (line 45) ... ok
[INFO] [stdout] test src/lazy.rs - lazy::Lazy (line 82) ... ok
[INFO] [stdout] test src/lazy.rs - lazy::Lazy (line 46) ... ok
[INFO] [stdout] test src/lazy.rs - lazy::Lazy (line 63) ... ok
[INFO] [stdout] test src/lib.rs - (line 56) ... ok
[INFO] [stdout] test src/lib.rs - (line 6) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6ac3f2d2519780a92ed1b0f564e515e92639ff56d5af16000d587f83f7136e43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ac3f2d2519780a92ed1b0f564e515e92639ff56d5af16000d587f83f7136e43", kill_on_drop: false }`
[INFO] [stdout] 6ac3f2d2519780a92ed1b0f564e515e92639ff56d5af16000d587f83f7136e43