[INFO] fetching crate mockers_derive 0.21.0...
[INFO] extracting crate mockers_derive 0.21.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/mockers_derive/0.21.0
[INFO] extracting crate mockers_derive 0.21.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/mockers_derive/0.21.0
[INFO] validating manifest of mockers_derive-0.21.0 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 mockers_derive-0.21.0 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 mockers_derive-0.21.0
[INFO] finished frobbing mockers_derive-0.21.0
[INFO] frobbed toml for mockers_derive-0.21.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/mockers_derive/0.21.0/Cargo.toml
[INFO] started frobbing mockers_derive-0.21.0
[INFO] finished frobbing mockers_derive-0.21.0
[INFO] frobbed toml for mockers_derive-0.21.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/mockers_derive/0.21.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing mockers_derive-0.21.0 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/mockers_derive/0.21.0:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] b99df39daf06941e4b50c0880524918f76898c79c1553d820c77837ca20217e0
[INFO] running `"docker" "start" "-a" "b99df39daf06941e4b50c0880524918f76898c79c1553d820c77837ca20217e0"`
[INFO] [stderr]    Compiling syn v0.15.42
[INFO] [stderr]    Compiling proc-macro-hack v0.5.8
[INFO] [stderr]    Compiling proc-quote-impl v0.2.2
[INFO] [stderr]    Compiling indoc-impl v0.3.3
[INFO] [stderr]    Compiling proc-quote v0.2.2
[INFO] [stderr]    Compiling indoc v0.3.3
[INFO] [stderr]    Compiling mockers_derive v0.21.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]     --> src/codegen.rs:1205:9
[INFO] [stderr]      |
[INFO] [stderr] 1205 |         a => false,
[INFO] [stderr]      |         ^ help: consider prefixing with an underscore: `_a`
[INFO] [stderr]      |
[INFO] [stderr]      = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.59s
[INFO] running `"docker" "inspect" "b99df39daf06941e4b50c0880524918f76898c79c1553d820c77837ca20217e0"`
[INFO] running `"docker" "rm" "-f" "b99df39daf06941e4b50c0880524918f76898c79c1553d820c77837ca20217e0"`
[INFO] [stdout] b99df39daf06941e4b50c0880524918f76898c79c1553d820c77837ca20217e0
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/mockers_derive/0.21.0:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 4b5b3336e559f4e53b362d464d1e148986cdde08b95fadecfa06ddd908a0b450
[INFO] running `"docker" "start" "-a" "4b5b3336e559f4e53b362d464d1e148986cdde08b95fadecfa06ddd908a0b450"`
[INFO] [stderr]    Compiling serde_derive v1.0.98
[INFO] [stderr]    Compiling serde v1.0.98
[INFO] [stderr]    Compiling serde_json v1.0.40
[INFO] [stderr]    Compiling toml v0.5.1
[INFO] [stderr]    Compiling trybuild v1.0.10
[INFO] [stderr]    Compiling mockers_derive v0.21.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0432]: unresolved import `mockers`
[INFO] [stderr]  --> tests/mod.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use mockers;
[INFO] [stderr]   |     ^^^^^^^ no `mockers` external crate
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: could not find `mockers` in `{{root}}`
[INFO] [stderr]  --> tests/mod.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | #[mocked]
[INFO] [stderr]   | ^^^^^^^^^ could not find `mockers` in `{{root}}`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: could not find `mockers` in `{{root}}`
[INFO] [stderr]   --> tests/mod.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | / mock! {
[INFO] [stderr] 14 | |   BMock,
[INFO] [stderr] 15 | |   self,
[INFO] [stderr] 16 | |   trait B {
[INFO] [stderr] 17 | |       fn bar(&self);
[INFO] [stderr] 18 | |   }
[INFO] [stderr] 19 | | }
[INFO] [stderr]    | |_^ could not find `mockers` in `{{root}}`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0432, E0433.
[INFO] [stderr] For more information about an error, try `rustc --explain E0432`.
[INFO] [stderr] error: Could not compile `mockers_derive`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]     --> src/codegen.rs:1205:9
[INFO] [stderr]      |
[INFO] [stderr] 1205 |         a => false,
[INFO] [stderr]      |         ^ help: consider prefixing with an underscore: `_a`
[INFO] [stderr]      |
[INFO] [stderr]      = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "4b5b3336e559f4e53b362d464d1e148986cdde08b95fadecfa06ddd908a0b450"`
[INFO] running `"docker" "rm" "-f" "4b5b3336e559f4e53b362d464d1e148986cdde08b95fadecfa06ddd908a0b450"`
[INFO] [stdout] 4b5b3336e559f4e53b362d464d1e148986cdde08b95fadecfa06ddd908a0b450