[INFO] crate ghost 0.1.0 is already in cache
[INFO] extracting crate ghost 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/ghost/0.1.0
[INFO] extracting crate ghost 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/ghost/0.1.0
[INFO] validating manifest of ghost-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 ghost-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 ghost-0.1.0
[INFO] finished frobbing ghost-0.1.0
[INFO] frobbed toml for ghost-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/ghost/0.1.0/Cargo.toml
[INFO] started frobbing ghost-0.1.0
[INFO] finished frobbing ghost-0.1.0
[INFO] frobbed toml for ghost-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/ghost/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 ghost-0.1.0 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-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/ghost/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 15a1d80c122826283d0fd9a1f6db4bc62fe06667f450d27cc02cc7a5ed3a98e8
[INFO] running `"docker" "start" "-a" "15a1d80c122826283d0fd9a1f6db4bc62fe06667f450d27cc02cc7a5ed3a98e8"`
[INFO] [stderr]    Compiling ghost v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/variance.rs:27:26
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub fn apply(param: &mut HasVarianceAttribute, base: TokenStream) -> TokenStream {
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn HasVarianceAttribute`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `quote::quote`
[INFO] [stderr]  --> src/visibility.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use quote::quote;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.73s
[INFO] running `"docker" "inspect" "15a1d80c122826283d0fd9a1f6db4bc62fe06667f450d27cc02cc7a5ed3a98e8"`
[INFO] running `"docker" "rm" "-f" "15a1d80c122826283d0fd9a1f6db4bc62fe06667f450d27cc02cc7a5ed3a98e8"`
[INFO] [stdout] 15a1d80c122826283d0fd9a1f6db4bc62fe06667f450d27cc02cc7a5ed3a98e8
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/ghost/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 712f3becfebd4395b5d841b4c60ba3b78fd22a7235085f2e1cfca3e3c2bbb31c
[INFO] running `"docker" "start" "-a" "712f3becfebd4395b5d841b4c60ba3b78fd22a7235085f2e1cfca3e3c2bbb31c"`
[INFO] [stderr]    Compiling ghost v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/variance.rs:27:26
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub fn apply(param: &mut HasVarianceAttribute, base: TokenStream) -> TokenStream {
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn HasVarianceAttribute`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `quote::quote`
[INFO] [stderr]  --> src/visibility.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use quote::quote;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `"docker" "inspect" "712f3becfebd4395b5d841b4c60ba3b78fd22a7235085f2e1cfca3e3c2bbb31c"`
[INFO] running `"docker" "rm" "-f" "712f3becfebd4395b5d841b4c60ba3b78fd22a7235085f2e1cfca3e3c2bbb31c"`
[INFO] [stdout] 712f3becfebd4395b5d841b4c60ba3b78fd22a7235085f2e1cfca3e3c2bbb31c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/ghost/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 43ab615d57717632550ec43d6feaa323830ed2bf1a745d6dae94236245b76284
[INFO] running `"docker" "start" "-a" "43ab615d57717632550ec43d6feaa323830ed2bf1a745d6dae94236245b76284"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/ghost-6671e569fccdd0cd
[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 ghost
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test src/lib.rs -  (line 27) ... ok
[INFO] [stdout] test src/lib.rs -  (line 176) ... ok
[INFO] [stdout] test src/lib.rs -  (line 11) ... ok
[INFO] [stdout] test src/lib.rs -  (line 103) ... ok
[INFO] [stdout] test src/lib.rs -  (line 152) ... ok
[INFO] [stdout] test src/lib.rs -  (line 73) ... ok
[INFO] [stdout] test src/lib.rs -  (line 133) ... ok
[INFO] [stdout] test src/lib.rs -  (line 46) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "43ab615d57717632550ec43d6feaa323830ed2bf1a745d6dae94236245b76284"`
[INFO] running `"docker" "rm" "-f" "43ab615d57717632550ec43d6feaa323830ed2bf1a745d6dae94236245b76284"`
[INFO] [stdout] 43ab615d57717632550ec43d6feaa323830ed2bf1a745d6dae94236245b76284