[INFO] updating cached repository dolph/gerrit-query
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/dolph/gerrit-query
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/dolph/gerrit-query" "work/ex/beta-1.38-1/sources/1.37.0/gh/dolph/gerrit-query"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/dolph/gerrit-query'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/dolph/gerrit-query" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/dolph/gerrit-query"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/dolph/gerrit-query'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] bae847592d743eacad8ca0858f7fba3902c36c3d
[INFO] sha for GitHub repo dolph/gerrit-query: bae847592d743eacad8ca0858f7fba3902c36c3d
[INFO] validating manifest of dolph/gerrit-query 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 dolph/gerrit-query 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 dolph/gerrit-query
[INFO] finished frobbing dolph/gerrit-query
[INFO] frobbed toml for dolph/gerrit-query written to work/ex/beta-1.38-1/sources/1.37.0/gh/dolph/gerrit-query/Cargo.toml
[INFO] started frobbing dolph/gerrit-query
[INFO] finished frobbing dolph/gerrit-query
[INFO] frobbed toml for dolph/gerrit-query written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/dolph/gerrit-query/Cargo.toml
[INFO] crate dolph/gerrit-query 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/dolph/gerrit-query/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[INFO] the lockfile is outdated, regenerating it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 dolph/gerrit-query 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-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/dolph/gerrit-query:/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] 2ae70f638635b23f806c39640a1fe990a9f64b41d9db126118a730530d8e4b4c
[INFO] running `"docker" "start" "-a" "2ae70f638635b23f806c39640a1fe990a9f64b41d9db126118a730530d8e4b4c"`
[INFO] [stderr]    Compiling termcolor v1.0.5
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling users v0.9.1
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]    Compiling regex v1.2.1
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling gerrit-query v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] error[E0599]: no method named `unwrap` found for type `()` in the current scope
[INFO] [stderr]   --> src/main.rs:18:24
[INFO] [stderr]    |
[INFO] [stderr] 18 |     env_logger::init().unwrap();
[INFO] [stderr]    |                        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `to_string` found for type `&std::ffi::OsStr` in the current scope
[INFO] [stderr]   --> src/main.rs:32:43
[INFO] [stderr]    |
[INFO] [stderr] 32 |     options.gerrit_username = user.name().to_string();
[INFO] [stderr]    |                                           ^^^^^^^^^ help: there is a method with a similar name: `to_os_string`
[INFO] [stderr]    |
[INFO] [stderr]    = note: the method `to_string` exists but the following trait bounds were not satisfied:
[INFO] [stderr]            `&std::ffi::OsStr : std::string::ToString`
[INFO] [stderr]            `std::ffi::OsStr : std::string::ToString`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0599`.
[INFO] [stderr] error: Could not compile `gerrit-query`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "2ae70f638635b23f806c39640a1fe990a9f64b41d9db126118a730530d8e4b4c"`
[INFO] running `"docker" "rm" "-f" "2ae70f638635b23f806c39640a1fe990a9f64b41d9db126118a730530d8e4b4c"`
[INFO] [stdout] 2ae70f638635b23f806c39640a1fe990a9f64b41d9db126118a730530d8e4b4c