[INFO] updating cached repository unjello/fbz
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/unjello/fbz
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/unjello/fbz" "work/ex/beta-1.37-6/sources/1.36.0/gh/unjello/fbz"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/unjello/fbz'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/unjello/fbz" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/unjello/fbz"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/unjello/fbz'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 40c0d41cf03ae7325e6e2b00d39cc016ee134d3d
[INFO] sha for GitHub repo unjello/fbz: 40c0d41cf03ae7325e6e2b00d39cc016ee134d3d
[INFO] validating manifest of unjello/fbz 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 unjello/fbz 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 unjello/fbz
[INFO] finished frobbing unjello/fbz
[INFO] frobbed toml for unjello/fbz written to work/ex/beta-1.37-6/sources/1.36.0/gh/unjello/fbz/Cargo.toml
[INFO] started frobbing unjello/fbz
[INFO] finished frobbing unjello/fbz
[INFO] frobbed toml for unjello/fbz written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/unjello/fbz/Cargo.toml
[INFO] crate unjello/fbz already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing unjello/fbz against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/unjello/fbz:/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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] d7886d58960ad2178f43c946e306d8d9b51a5c40373a5e0a964c48ab98e4ab56
[INFO] running `"docker" "start" "-a" "d7886d58960ad2178f43c946e306d8d9b51a5c40373a5e0a964c48ab98e4ab56"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling x11-dl v2.18.3
[INFO] [stderr]    Compiling fbz v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:18:32
[INFO] [stderr]    |
[INFO] [stderr] 18 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stderr]    |                                ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.46s
[INFO] running `"docker" "inspect" "d7886d58960ad2178f43c946e306d8d9b51a5c40373a5e0a964c48ab98e4ab56"`
[INFO] running `"docker" "rm" "-f" "d7886d58960ad2178f43c946e306d8d9b51a5c40373a5e0a964c48ab98e4ab56"`
[INFO] [stdout] d7886d58960ad2178f43c946e306d8d9b51a5c40373a5e0a964c48ab98e4ab56
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/unjello/fbz:/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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 128c0a4dddb668dd0e6817096ac80d98ec64ade3d23ca1c9fff28351f89d37d2
[INFO] running `"docker" "start" "-a" "128c0a4dddb668dd0e6817096ac80d98ec64ade3d23ca1c9fff28351f89d37d2"`
[INFO] [stderr]    Compiling fbz v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:18:32
[INFO] [stderr]    |
[INFO] [stderr] 18 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stderr]    |                                ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.88s
[INFO] running `"docker" "inspect" "128c0a4dddb668dd0e6817096ac80d98ec64ade3d23ca1c9fff28351f89d37d2"`
[INFO] running `"docker" "rm" "-f" "128c0a4dddb668dd0e6817096ac80d98ec64ade3d23ca1c9fff28351f89d37d2"`
[INFO] [stdout] 128c0a4dddb668dd0e6817096ac80d98ec64ade3d23ca1c9fff28351f89d37d2
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/unjello/fbz:/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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 23ceb4999aef940ba4226dc34e461e00fb9aecd21d290a4ecd315f1d0c6bb222
[INFO] running `"docker" "start" "-a" "23ceb4999aef940ba4226dc34e461e00fb9aecd21d290a4ecd315f1d0c6bb222"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/fbz-9f189e84afb2efbc
[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 fbz
[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" "23ceb4999aef940ba4226dc34e461e00fb9aecd21d290a4ecd315f1d0c6bb222"`
[INFO] running `"docker" "rm" "-f" "23ceb4999aef940ba4226dc34e461e00fb9aecd21d290a4ecd315f1d0c6bb222"`
[INFO] [stdout] 23ceb4999aef940ba4226dc34e461e00fb9aecd21d290a4ecd315f1d0c6bb222