[INFO] updating cached repository afaur/objc-basic
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/afaur/objc-basic
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/afaur/objc-basic" "work/ex/beta-1.38-1/sources/1.37.0/gh/afaur/objc-basic"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/afaur/objc-basic'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/afaur/objc-basic" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/afaur/objc-basic"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/afaur/objc-basic'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b1f60457cf43eb5ba68a4af9892334806cf4953e
[INFO] sha for GitHub repo afaur/objc-basic: b1f60457cf43eb5ba68a4af9892334806cf4953e
[INFO] validating manifest of afaur/objc-basic 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 afaur/objc-basic 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 afaur/objc-basic
[INFO] finished frobbing afaur/objc-basic
[INFO] frobbed toml for afaur/objc-basic written to work/ex/beta-1.38-1/sources/1.37.0/gh/afaur/objc-basic/Cargo.toml
[INFO] started frobbing afaur/objc-basic
[INFO] finished frobbing afaur/objc-basic
[INFO] frobbed toml for afaur/objc-basic written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/afaur/objc-basic/Cargo.toml
[INFO] crate afaur/objc-basic already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/afaur/objc-basic/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[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 afaur/objc-basic 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/gh/afaur/objc-basic:/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] 100e2496be2732169857eb5b6407b2dd1124753b7132e3c95c27e162735e4fc0
[INFO] running `"docker" "start" "-a" "100e2496be2732169857eb5b6407b2dd1124753b7132e3c95c27e162735e4fc0"`
[INFO] [stderr]    Compiling malloc_buf v0.0.6
[INFO] [stderr]    Compiling objc v0.2.6
[INFO] [stderr]    Compiling objc-basic v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `objc::Encode`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use objc::Encode;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.14s
[INFO] running `"docker" "inspect" "100e2496be2732169857eb5b6407b2dd1124753b7132e3c95c27e162735e4fc0"`
[INFO] running `"docker" "rm" "-f" "100e2496be2732169857eb5b6407b2dd1124753b7132e3c95c27e162735e4fc0"`
[INFO] [stdout] 100e2496be2732169857eb5b6407b2dd1124753b7132e3c95c27e162735e4fc0
[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/gh/afaur/objc-basic:/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] 202d2f820b82d4f92d7afad542e12da2fe5b0c4cd2d09f280bd32fb95d13504b
[INFO] running `"docker" "start" "-a" "202d2f820b82d4f92d7afad542e12da2fe5b0c4cd2d09f280bd32fb95d13504b"`
[INFO] [stderr]    Compiling objc-basic v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `objc::Encode`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use objc::Encode;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `"docker" "inspect" "202d2f820b82d4f92d7afad542e12da2fe5b0c4cd2d09f280bd32fb95d13504b"`
[INFO] running `"docker" "rm" "-f" "202d2f820b82d4f92d7afad542e12da2fe5b0c4cd2d09f280bd32fb95d13504b"`
[INFO] [stdout] 202d2f820b82d4f92d7afad542e12da2fe5b0c4cd2d09f280bd32fb95d13504b
[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/gh/afaur/objc-basic:/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] 3841004b4de468a438a811c8c4a35daeabf34a3561a2c1f0dfa9e70d2e14eeb4
[INFO] running `"docker" "start" "-a" "3841004b4de468a438a811c8c4a35daeabf34a3561a2c1f0dfa9e70d2e14eeb4"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/objc_basic-fc4c21954193d14f
[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" "3841004b4de468a438a811c8c4a35daeabf34a3561a2c1f0dfa9e70d2e14eeb4"`
[INFO] running `"docker" "rm" "-f" "3841004b4de468a438a811c8c4a35daeabf34a3561a2c1f0dfa9e70d2e14eeb4"`
[INFO] [stdout] 3841004b4de468a438a811c8c4a35daeabf34a3561a2c1f0dfa9e70d2e14eeb4