[INFO] updating cached repository SSheldon/rust-test-ios
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/SSheldon/rust-test-ios
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/SSheldon/rust-test-ios" "work/ex/beta-1.38-1/sources/1.37.0/gh/SSheldon/rust-test-ios"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/SSheldon/rust-test-ios'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/SSheldon/rust-test-ios" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/SSheldon/rust-test-ios"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/SSheldon/rust-test-ios'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 83d491437b1c125c817b6bbe24aa5826060dd311
[INFO] sha for GitHub repo SSheldon/rust-test-ios: 83d491437b1c125c817b6bbe24aa5826060dd311
[INFO] validating manifest of SSheldon/rust-test-ios 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 SSheldon/rust-test-ios 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 SSheldon/rust-test-ios
[INFO] finished frobbing SSheldon/rust-test-ios
[INFO] frobbed toml for SSheldon/rust-test-ios written to work/ex/beta-1.38-1/sources/1.37.0/gh/SSheldon/rust-test-ios/Cargo.toml
[INFO] started frobbing SSheldon/rust-test-ios
[INFO] finished frobbing SSheldon/rust-test-ios
[INFO] frobbed toml for SSheldon/rust-test-ios written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/SSheldon/rust-test-ios/Cargo.toml
[INFO] crate SSheldon/rust-test-ios 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/SSheldon/rust-test-ios/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[INFO] the lockfile is outdated, regenerating it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 SSheldon/rust-test-ios 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-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/SSheldon/rust-test-ios:/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] 7df6f1890161850f75edc36648888078b7679e9571095ab7ab519239da6e9f98
[INFO] running `"docker" "start" "-a" "7df6f1890161850f75edc36648888078b7679e9571095ab7ab519239da6e9f98"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling serde v0.7.15
[INFO] [stderr]    Compiling toml v0.1.30
[INFO] [stderr]    Compiling serde_json v0.7.4
[INFO] [stderr]    Compiling rust-test-ios v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:22:46
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub type BuildResult<T = ()> = Result<T, Box<Error>>;
[INFO] [stderr]    |                                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.36s
[INFO] running `"docker" "inspect" "7df6f1890161850f75edc36648888078b7679e9571095ab7ab519239da6e9f98"`
[INFO] running `"docker" "rm" "-f" "7df6f1890161850f75edc36648888078b7679e9571095ab7ab519239da6e9f98"`
[INFO] [stdout] 7df6f1890161850f75edc36648888078b7679e9571095ab7ab519239da6e9f98
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/SSheldon/rust-test-ios:/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] 08f8e705812d6f3750430710a50e3ff33dc81d66864a46446cd90af055accc68
[INFO] running `"docker" "start" "-a" "08f8e705812d6f3750430710a50e3ff33dc81d66864a46446cd90af055accc68"`
[INFO] [stderr]    Compiling rust-test-ios v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:22:46
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub type BuildResult<T = ()> = Result<T, Box<Error>>;
[INFO] [stderr]    |                                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `"docker" "inspect" "08f8e705812d6f3750430710a50e3ff33dc81d66864a46446cd90af055accc68"`
[INFO] running `"docker" "rm" "-f" "08f8e705812d6f3750430710a50e3ff33dc81d66864a46446cd90af055accc68"`
[INFO] [stdout] 08f8e705812d6f3750430710a50e3ff33dc81d66864a46446cd90af055accc68
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/SSheldon/rust-test-ios:/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] ccb4e0a9f89a6c124d15072b1ee8221520cb3f4a3bf5c399eb0344e25071b7ee
[INFO] running `"docker" "start" "-a" "ccb4e0a9f89a6c124d15072b1ee8221520cb3f4a3bf5c399eb0344e25071b7ee"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_test_ios-1de948d577f71275
[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" "ccb4e0a9f89a6c124d15072b1ee8221520cb3f4a3bf5c399eb0344e25071b7ee"`
[INFO] running `"docker" "rm" "-f" "ccb4e0a9f89a6c124d15072b1ee8221520cb3f4a3bf5c399eb0344e25071b7ee"`
[INFO] [stdout] ccb4e0a9f89a6c124d15072b1ee8221520cb3f4a3bf5c399eb0344e25071b7ee