[INFO] updating cached repository mchesser/serde_utils
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mchesser/serde_utils
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mchesser/serde_utils" "work/ex/beta-1.38-1/sources/1.37.0/gh/mchesser/serde_utils"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/mchesser/serde_utils'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mchesser/serde_utils" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mchesser/serde_utils"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mchesser/serde_utils'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 91fcb9b878d7e2993f21392dd98a2a8d1e1dbf5d
[INFO] sha for GitHub repo mchesser/serde_utils: 91fcb9b878d7e2993f21392dd98a2a8d1e1dbf5d
[INFO] validating manifest of mchesser/serde_utils 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 mchesser/serde_utils 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 mchesser/serde_utils
[INFO] finished frobbing mchesser/serde_utils
[INFO] frobbed toml for mchesser/serde_utils written to work/ex/beta-1.38-1/sources/1.37.0/gh/mchesser/serde_utils/Cargo.toml
[INFO] started frobbing mchesser/serde_utils
[INFO] finished frobbing mchesser/serde_utils
[INFO] frobbed toml for mchesser/serde_utils written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mchesser/serde_utils/Cargo.toml
[INFO] crate mchesser/serde_utils 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/mchesser/serde_utils/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[INFO] the lockfile is outdated, regenerating it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 mchesser/serde_utils against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mchesser/serde_utils:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 88aa052ca7d9d718649b2d1ca40719478ad29f0047ad31fd2798d5102ca1928c
[INFO] running `"docker" "start" "-a" "88aa052ca7d9d718649b2d1ca40719478ad29f0047ad31fd2798d5102ca1928c"`
[INFO] [stderr]    Compiling serde_utils v0.2.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `"docker" "inspect" "88aa052ca7d9d718649b2d1ca40719478ad29f0047ad31fd2798d5102ca1928c"`
[INFO] running `"docker" "rm" "-f" "88aa052ca7d9d718649b2d1ca40719478ad29f0047ad31fd2798d5102ca1928c"`
[INFO] [stdout] 88aa052ca7d9d718649b2d1ca40719478ad29f0047ad31fd2798d5102ca1928c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mchesser/serde_utils:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 60ce9f9cbede574286290653f4a6ce3a1b236b22162a6e5c062b8e3afb6e9ec0
[INFO] running `"docker" "start" "-a" "60ce9f9cbede574286290653f4a6ce3a1b236b22162a6e5c062b8e3afb6e9ec0"`
[INFO] [stderr]    Compiling serde_utils v0.2.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `"docker" "inspect" "60ce9f9cbede574286290653f4a6ce3a1b236b22162a6e5c062b8e3afb6e9ec0"`
[INFO] running `"docker" "rm" "-f" "60ce9f9cbede574286290653f4a6ce3a1b236b22162a6e5c062b8e3afb6e9ec0"`
[INFO] [stdout] 60ce9f9cbede574286290653f4a6ce3a1b236b22162a6e5c062b8e3afb6e9ec0
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mchesser/serde_utils:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] be37840cce74ff90610d12a17948d60ae0aae51e566f5162135a2493db6e14d1
[INFO] running `"docker" "start" "-a" "be37840cce74ff90610d12a17948d60ae0aae51e566f5162135a2493db6e14d1"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/serde_utils-96f612e43dd1252a
[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 serde_utils
[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" "be37840cce74ff90610d12a17948d60ae0aae51e566f5162135a2493db6e14d1"`
[INFO] running `"docker" "rm" "-f" "be37840cce74ff90610d12a17948d60ae0aae51e566f5162135a2493db6e14d1"`
[INFO] [stdout] be37840cce74ff90610d12a17948d60ae0aae51e566f5162135a2493db6e14d1