[INFO] updating cached repository https://github.com/MackieLoeffel/rusty-jvm
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6eacfb29a6941c15c43925902a0faaf6ff67a6fe
[INFO] testing MackieLoeffel/rusty-jvm against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FMackieLoeffel%2Frusty-jvm" "work/builds/worker-10/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MackieLoeffel/rusty-jvm on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/MackieLoeffel/rusty-jvm
[INFO] finished tweaking git repo https://github.com/MackieLoeffel/rusty-jvm
[INFO] tweaked toml for git repo https://github.com/MackieLoeffel/rusty-jvm written to work/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/MackieLoeffel/rusty-jvm already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] c1491103872bac380579932c2f3b5c803fa318c8d9b91ea4b7f4503a2a6058bf
[INFO] running `"docker" "start" "-a" "c1491103872bac380579932c2f3b5c803fa318c8d9b91ea4b7f4503a2a6058bf"`
[INFO] [stderr]    Compiling bitflags v0.7.1
[INFO] [stderr]    Compiling nom v2.1.0
[INFO] [stderr]    Compiling classfile-parser v0.1.0 (https://github.com/MackieLoeffel/classfile-parser.git#f3ba2d11)
[INFO] [stderr]    Compiling rusty-jvm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/errors.rs:47:32
[INFO] [stderr]    |
[INFO] [stderr] 47 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/errors.rs:49:93
[INFO] [stderr]    |
[INFO] [stderr] 49 |             ClassLoadingError::NoClassDefFound(ref err) => err.as_ref().err().map(|e| e as &error::Error),
[INFO] [stderr]    |                                                                                             ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] error[E0282]: type annotations needed
[INFO] [stderr]    --> src/class.rs:117:17
[INFO] [stderr]     |
[INFO] [stderr] 117 |             sum += class.instance_fields().iter().map(|f| f.size()).sum();
[INFO] [stderr]     |                 ^^ cannot infer type
[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 `rusty-jvm`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "c1491103872bac380579932c2f3b5c803fa318c8d9b91ea4b7f4503a2a6058bf"`
[INFO] running `"docker" "rm" "-f" "c1491103872bac380579932c2f3b5c803fa318c8d9b91ea4b7f4503a2a6058bf"`
[INFO] [stdout] c1491103872bac380579932c2f3b5c803fa318c8d9b91ea4b7f4503a2a6058bf