[INFO] crate derive-error 0.0.4 is already in cache
[INFO] extracting crate derive-error 0.0.4 into work/ex/beta-1.38-1/sources/1.37.0/reg/derive-error/0.0.4
[INFO] extracting crate derive-error 0.0.4 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/derive-error/0.0.4
[INFO] validating manifest of derive-error-0.0.4 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 derive-error-0.0.4 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 derive-error-0.0.4
[INFO] finished frobbing derive-error-0.0.4
[INFO] frobbed toml for derive-error-0.0.4 written to work/ex/beta-1.38-1/sources/1.37.0/reg/derive-error/0.0.4/Cargo.toml
[INFO] started frobbing derive-error-0.0.4
[INFO] finished frobbing derive-error-0.0.4
[INFO] frobbed toml for derive-error-0.0.4 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/derive-error/0.0.4/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 derive-error-0.0.4 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/derive-error/0.0.4:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 643977f9b43fd0d930a9d4ddcc8a4f4c649120529b54ac1f5068dbdec543f66f
[INFO] running `"docker" "start" "-a" "643977f9b43fd0d930a9d4ddcc8a4f4c649120529b54ac1f5068dbdec543f66f"`
[INFO] [stderr]    Compiling case v0.1.0
[INFO] [stderr]    Compiling derive-error v0.0.4 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_left_matches': superseded by `trim_start_matches`
[INFO] [stderr]    --> src/error.rs:202:40
[INFO] [stderr]     |
[INFO] [stderr] 202 |                         let doc = line.trim_left_matches("///");
[INFO] [stderr]     |                                        ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_start_matches`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.74s
[INFO] running `"docker" "inspect" "643977f9b43fd0d930a9d4ddcc8a4f4c649120529b54ac1f5068dbdec543f66f"`
[INFO] running `"docker" "rm" "-f" "643977f9b43fd0d930a9d4ddcc8a4f4c649120529b54ac1f5068dbdec543f66f"`
[INFO] [stdout] 643977f9b43fd0d930a9d4ddcc8a4f4c649120529b54ac1f5068dbdec543f66f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/derive-error/0.0.4:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] d822c9f5ec0116c24ffab553c0a34c415d6fc82b6e1579cc9ff32f968ab6b865
[INFO] running `"docker" "start" "-a" "d822c9f5ec0116c24ffab553c0a34c415d6fc82b6e1579cc9ff32f968ab6b865"`
[INFO] [stderr]    Compiling derive_builder v0.5.1
[INFO] [stderr]    Compiling derive_builder_core v0.2.0
[INFO] [stderr]    Compiling rayon v0.8.2
[INFO] [stderr]    Compiling rspec v1.0.0-beta.4
[INFO] [stderr]    Compiling derive-error v0.0.4 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_left_matches': superseded by `trim_start_matches`
[INFO] [stderr]    --> src/error.rs:202:40
[INFO] [stderr]     |
[INFO] [stderr] 202 |                         let doc = line.trim_left_matches("///");
[INFO] [stderr]     |                                        ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_start_matches`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.16s
[INFO] running `"docker" "inspect" "d822c9f5ec0116c24ffab553c0a34c415d6fc82b6e1579cc9ff32f968ab6b865"`
[INFO] running `"docker" "rm" "-f" "d822c9f5ec0116c24ffab553c0a34c415d6fc82b6e1579cc9ff32f968ab6b865"`
[INFO] [stdout] d822c9f5ec0116c24ffab553c0a34c415d6fc82b6e1579cc9ff32f968ab6b865
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/derive-error/0.0.4:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] d3e4e41dd042041ec8ebf96f4bc05e07b49e3fee34bf98cd958ae7bef3e91536
[INFO] running `"docker" "start" "-a" "d3e4e41dd042041ec8ebf96f4bc05e07b49e3fee34bf98cd958ae7bef3e91536"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/derive_error-42ccd96ba94cd71f
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/behaviour-6b356b1700438d5b
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] 
[INFO] [stdout] tests:
[INFO] [stdout] 
[INFO] [stdout] Describe "the implementation"
[INFO] [stdout]   It "should be able to derive from unit structs" ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored
[INFO] [stdout] test error_behaviour ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests derive-error
[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" "d3e4e41dd042041ec8ebf96f4bc05e07b49e3fee34bf98cd958ae7bef3e91536"`
[INFO] running `"docker" "rm" "-f" "d3e4e41dd042041ec8ebf96f4bc05e07b49e3fee34bf98cd958ae7bef3e91536"`
[INFO] [stdout] d3e4e41dd042041ec8ebf96f4bc05e07b49e3fee34bf98cd958ae7bef3e91536