[INFO] updating cached repository thepowersgang/inverse_fft
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/thepowersgang/inverse_fft
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/thepowersgang/inverse_fft" "work/ex/beta-1.37-6/sources/1.36.0/gh/thepowersgang/inverse_fft"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/thepowersgang/inverse_fft'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/thepowersgang/inverse_fft" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/thepowersgang/inverse_fft"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/thepowersgang/inverse_fft'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7bca22ec676356a9f16caf40e5415329a9b4b6e4
[INFO] sha for GitHub repo thepowersgang/inverse_fft: 7bca22ec676356a9f16caf40e5415329a9b4b6e4
[INFO] validating manifest of thepowersgang/inverse_fft 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 thepowersgang/inverse_fft 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 thepowersgang/inverse_fft
[INFO] finished frobbing thepowersgang/inverse_fft
[INFO] frobbed toml for thepowersgang/inverse_fft written to work/ex/beta-1.37-6/sources/1.36.0/gh/thepowersgang/inverse_fft/Cargo.toml
[INFO] started frobbing thepowersgang/inverse_fft
[INFO] finished frobbing thepowersgang/inverse_fft
[INFO] frobbed toml for thepowersgang/inverse_fft written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/thepowersgang/inverse_fft/Cargo.toml
[INFO] crate thepowersgang/inverse_fft 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] error: the lock file /mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/thepowersgang/inverse_fft/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[INFO] the lockfile is outdated, regenerating it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" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing thepowersgang/inverse_fft against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/thepowersgang/inverse_fft:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 5e2ae0823243c7a7ac571d3d6bc0e25568594acfa115f9b669226723be4c7f14
[INFO] running `"docker" "start" "-a" "5e2ae0823243c7a7ac571d3d6bc0e25568594acfa115f9b669226723be4c7f14"`
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling png v0.15.0
[INFO] [stderr]    Compiling num-bigint v0.2.2
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling num v0.2.0
[INFO] [stderr]    Compiling image v0.22.0
[INFO] [stderr] error[E0282]: type annotations needed
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/image-0.22.0/./src/dynimage.rs:828:9
[INFO] [stderr]     |
[INFO] [stderr] 797 |     let (w, h) = match &ext[..] {
[INFO] [stderr]     |         ------ consider giving the pattern a type
[INFO] [stderr] ...
[INFO] [stderr] 828 |     Ok((w as u32, h as u32))
[INFO] [stderr]     |         ^^^^^^^^ cannot infer type
[INFO] [stderr]     |
[INFO] [stderr]     = note: type must be known at this point
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0282`.
[INFO] [stderr] error: Could not compile `image`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "5e2ae0823243c7a7ac571d3d6bc0e25568594acfa115f9b669226723be4c7f14"`
[INFO] running `"docker" "rm" "-f" "5e2ae0823243c7a7ac571d3d6bc0e25568594acfa115f9b669226723be4c7f14"`
[INFO] [stdout] 5e2ae0823243c7a7ac571d3d6bc0e25568594acfa115f9b669226723be4c7f14