[INFO] crate worker 1.0.0 is already in cache
[INFO] extracting crate worker 1.0.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/worker/1.0.0
[INFO] extracting crate worker 1.0.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/worker/1.0.0
[INFO] validating manifest of worker-1.0.0 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of worker-1.0.0 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing worker-1.0.0
[INFO] finished frobbing worker-1.0.0
[INFO] frobbed toml for worker-1.0.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/worker/1.0.0/Cargo.toml
[INFO] started frobbing worker-1.0.0
[INFO] finished frobbing worker-1.0.0
[INFO] frobbed toml for worker-1.0.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/worker/1.0.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing worker-1.0.0 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/worker/1.0.0:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] cde0e6b464708298ea01f3feaa6cc3e272b1f70e09e59d4fc5ad20b8147d7763
[INFO] running `"docker" "start" "-a" "cde0e6b464708298ea01f3feaa6cc3e272b1f70e09e59d4fc5ad20b8147d7763"`
[INFO] [stderr]    Compiling worker v1.0.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `"docker" "inspect" "cde0e6b464708298ea01f3feaa6cc3e272b1f70e09e59d4fc5ad20b8147d7763"`
[INFO] running `"docker" "rm" "-f" "cde0e6b464708298ea01f3feaa6cc3e272b1f70e09e59d4fc5ad20b8147d7763"`
[INFO] [stdout] cde0e6b464708298ea01f3feaa6cc3e272b1f70e09e59d4fc5ad20b8147d7763
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/worker/1.0.0:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 42bdd31ea3966eed1eb702c6fdeb8725850bffebe5da981563781dfb644a92e6
[INFO] running `"docker" "start" "-a" "42bdd31ea3966eed1eb702c6fdeb8725850bffebe5da981563781dfb644a92e6"`
[INFO] [stderr]    Compiling worker v1.0.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.05s
[INFO] running `"docker" "inspect" "42bdd31ea3966eed1eb702c6fdeb8725850bffebe5da981563781dfb644a92e6"`
[INFO] running `"docker" "rm" "-f" "42bdd31ea3966eed1eb702c6fdeb8725850bffebe5da981563781dfb644a92e6"`
[INFO] [stdout] 42bdd31ea3966eed1eb702c6fdeb8725850bffebe5da981563781dfb644a92e6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/worker/1.0.0:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] d88da52da293f4ebd05917e50ad4634732a8d6501627afe1c78c976e976aa821
[INFO] running `"docker" "start" "-a" "d88da52da293f4ebd05917e50ad4634732a8d6501627afe1c78c976e976aa821"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/worker-b0c07dccfb20a909
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::test_single_worker ... ok
[INFO] [stdout] test tests::test_multiple_worker ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests worker
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - Worker (line 13) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - Worker (line 13) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `Worker`
[INFO] [stdout]  --> src/lib.rs:14:13
[INFO] [stdout]   |
[INFO] [stdout] 3 | let mut w = Worker::<&'static str>::single(move |r| {
[INFO] [stdout]   |             ^^^^^^ use of undeclared type or module `Worker`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - Worker (line 13)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `"docker" "inspect" "d88da52da293f4ebd05917e50ad4634732a8d6501627afe1c78c976e976aa821"`
[INFO] running `"docker" "rm" "-f" "d88da52da293f4ebd05917e50ad4634732a8d6501627afe1c78c976e976aa821"`
[INFO] [stdout] d88da52da293f4ebd05917e50ad4634732a8d6501627afe1c78c976e976aa821