[INFO] updating cached repository shadowmint/rust-base-task
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/shadowmint/rust-base-task
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/shadowmint/rust-base-task" "work/ex/beta-1.37-6/sources/1.36.0/gh/shadowmint/rust-base-task"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/shadowmint/rust-base-task'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/shadowmint/rust-base-task" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/shadowmint/rust-base-task"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/shadowmint/rust-base-task'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6a776ec0900c60834d72f6bf72caeb5fe8b11d25
[INFO] sha for GitHub repo shadowmint/rust-base-task: 6a776ec0900c60834d72f6bf72caeb5fe8b11d25
[INFO] validating manifest of shadowmint/rust-base-task on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of shadowmint/rust-base-task on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing shadowmint/rust-base-task
[INFO] finished frobbing shadowmint/rust-base-task
[INFO] frobbed toml for shadowmint/rust-base-task written to work/ex/beta-1.37-6/sources/1.36.0/gh/shadowmint/rust-base-task/Cargo.toml
[INFO] started frobbing shadowmint/rust-base-task
[INFO] finished frobbing shadowmint/rust-base-task
[INFO] frobbed toml for shadowmint/rust-base-task written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/shadowmint/rust-base-task/Cargo.toml
[INFO] crate shadowmint/rust-base-task already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing shadowmint/rust-base-task against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/shadowmint/rust-base-task:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 6c202ba49efe8fb2cb3597d124c2554950c3c8e3ee8ba2fa0bd23b26ffde7fab
[INFO] running `"docker" "start" "-a" "6c202ba49efe8fb2cb3597d124c2554950c3c8e3ee8ba2fa0bd23b26ffde7fab"`
[INFO] [stderr]    Compiling base-task v1.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/task.rs:8:17
[INFO] [stderr]   |
[INFO] [stderr] 8 |     action: Box<TaskFunc>,
[INFO] [stderr]   |                 ^^^^^^^^ help: use `dyn`: `dyn TaskFunc`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `"docker" "inspect" "6c202ba49efe8fb2cb3597d124c2554950c3c8e3ee8ba2fa0bd23b26ffde7fab"`
[INFO] running `"docker" "rm" "-f" "6c202ba49efe8fb2cb3597d124c2554950c3c8e3ee8ba2fa0bd23b26ffde7fab"`
[INFO] [stdout] 6c202ba49efe8fb2cb3597d124c2554950c3c8e3ee8ba2fa0bd23b26ffde7fab
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/shadowmint/rust-base-task:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 9e4fa405ecf68e9dbd7d6f265d80435db728281f3fd987fc25eb1be783026e5e
[INFO] running `"docker" "start" "-a" "9e4fa405ecf68e9dbd7d6f265d80435db728281f3fd987fc25eb1be783026e5e"`
[INFO] [stderr]    Compiling base-task v1.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/task.rs:8:17
[INFO] [stderr]   |
[INFO] [stderr] 8 |     action: Box<TaskFunc>,
[INFO] [stderr]   |                 ^^^^^^^^ help: use `dyn`: `dyn TaskFunc`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.13s
[INFO] running `"docker" "inspect" "9e4fa405ecf68e9dbd7d6f265d80435db728281f3fd987fc25eb1be783026e5e"`
[INFO] running `"docker" "rm" "-f" "9e4fa405ecf68e9dbd7d6f265d80435db728281f3fd987fc25eb1be783026e5e"`
[INFO] [stdout] 9e4fa405ecf68e9dbd7d6f265d80435db728281f3fd987fc25eb1be783026e5e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/shadowmint/rust-base-task:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 8987e5b1015ecc3db8cb7335d929c0db07fe17df71958809aa3c0ebb16ccf364
[INFO] running `"docker" "start" "-a" "8987e5b1015ecc3db8cb7335d929c0db07fe17df71958809aa3c0ebb16ccf364"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/base_task-bea91eba6d8f3cd9
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test task::tests::test_resolve_local_task_with_error ... ok
[INFO] [stdout] test task::tests::test_resolve_local_task ... ok
[INFO] [stdout] test task::tests::test_resolve_task_across_threads ... ok
[INFO] [stdout] test tests::test_send_task_over_channel ... ok
[INFO] [stdout] test task::tests::test_resolve_local_task_with_panic ... ok
[INFO] [stdout] test tests::test_wait_for_task ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests base-task
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "8987e5b1015ecc3db8cb7335d929c0db07fe17df71958809aa3c0ebb16ccf364"`
[INFO] running `"docker" "rm" "-f" "8987e5b1015ecc3db8cb7335d929c0db07fe17df71958809aa3c0ebb16ccf364"`
[INFO] [stdout] 8987e5b1015ecc3db8cb7335d929c0db07fe17df71958809aa3c0ebb16ccf364