[INFO] crate wsl 0.1.0 is already in cache
[INFO] extracting crate wsl 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/wsl/0.1.0
[INFO] extracting crate wsl 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/wsl/0.1.0
[INFO] validating manifest of wsl-0.1.0 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 wsl-0.1.0 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 wsl-0.1.0
[INFO] finished frobbing wsl-0.1.0
[INFO] frobbed toml for wsl-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/wsl/0.1.0/Cargo.toml
[INFO] started frobbing wsl-0.1.0
[INFO] finished frobbing wsl-0.1.0
[INFO] frobbed toml for wsl-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/wsl/0.1.0/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 wsl-0.1.0 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-4/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/wsl/0.1.0:/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] d3324b6676fbda0b78585e3b2fdf43017956d519cc2387b424b684e8a091747b
[INFO] running `"docker" "start" "-a" "d3324b6676fbda0b78585e3b2fdf43017956d519cc2387b424b684e8a091747b"`
[INFO] [stderr]    Compiling wsl v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `"docker" "inspect" "d3324b6676fbda0b78585e3b2fdf43017956d519cc2387b424b684e8a091747b"`
[INFO] running `"docker" "rm" "-f" "d3324b6676fbda0b78585e3b2fdf43017956d519cc2387b424b684e8a091747b"`
[INFO] [stdout] d3324b6676fbda0b78585e3b2fdf43017956d519cc2387b424b684e8a091747b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/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/wsl/0.1.0:/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] e3ece70a9766b90ad8f3b3d9c0afaa6428f1c0c36b53528d2f6ef5e43c8a5039
[INFO] running `"docker" "start" "-a" "e3ece70a9766b90ad8f3b3d9c0afaa6428f1c0c36b53528d2f6ef5e43c8a5039"`
[INFO] [stderr]    Compiling wsl v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `"docker" "inspect" "e3ece70a9766b90ad8f3b3d9c0afaa6428f1c0c36b53528d2f6ef5e43c8a5039"`
[INFO] running `"docker" "rm" "-f" "e3ece70a9766b90ad8f3b3d9c0afaa6428f1c0c36b53528d2f6ef5e43c8a5039"`
[INFO] [stdout] e3ece70a9766b90ad8f3b3d9c0afaa6428f1c0c36b53528d2f6ef5e43c8a5039
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/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/wsl/0.1.0:/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] a463e5bf4dff53f6f08583d11ace0c18148cd6c11f78e71113fd3f946a173738
[INFO] running `"docker" "start" "-a" "a463e5bf4dff53f6f08583d11ace0c18148cd6c11f78e71113fd3f946a173738"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/wsl-be1caf6f81d6c5ed
[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] [stderr]    Doc-tests wsl
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs -  (line 4) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs -  (line 4) stdout ----
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]  --> src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn main() {
[INFO] [stdout]   |           - expected `()` because of default return type
[INFO] [stdout] 4 | wsl::is_wsl()
[INFO] [stdout]   | ^^^^^^^^^^^^^- help: try adding a semicolon: `;`
[INFO] [stdout]   | |
[INFO] [stdout]   | expected (), found bool
[INFO] [stdout]   |
[INFO] [stdout]   = note: expected type `()`
[INFO] [stdout]              found type `bool`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs -  (line 4)
[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" "a463e5bf4dff53f6f08583d11ace0c18148cd6c11f78e71113fd3f946a173738"`
[INFO] running `"docker" "rm" "-f" "a463e5bf4dff53f6f08583d11ace0c18148cd6c11f78e71113fd3f946a173738"`
[INFO] [stdout] a463e5bf4dff53f6f08583d11ace0c18148cd6c11f78e71113fd3f946a173738