[INFO] updating cached repository https://github.com/shaded-enmity/feaders-rs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/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] 6d329553c1aa00af9a6cbe164b867e4d8874b779
[INFO] testing shaded-enmity/feaders-rs against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshaded-enmity%2Ffeaders-rs" "/workspace/builds/worker-11/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/shaded-enmity/feaders-rs on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/shaded-enmity/feaders-rs
[INFO] finished tweaking git repo https://github.com/shaded-enmity/feaders-rs
[INFO] tweaked toml for git repo https://github.com/shaded-enmity/feaders-rs written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/shaded-enmity/feaders-rs already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /workspace/builds/worker-11/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-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" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 70a28fa3134853d062b60be4354168feeb8b7eb649157411c293785253a38d86
[INFO] running `"docker" "start" "-a" "70a28fa3134853d062b60be4354168feeb8b7eb649157411c293785253a38d86"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling threadpool v1.8.1
[INFO] [stderr]    Compiling walkdir v0.1.8
[INFO] [stderr]    Compiling feaders v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:90:21
[INFO] [stderr]    |
[INFO] [stderr] 90 |         let mut f = try!(File::open(&self.path));
[INFO] [stderr]    |                     ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:92:9
[INFO] [stderr]    |
[INFO] [stderr] 92 |         try!(f.read_to_string(&mut s));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:187:17
[INFO] [stderr]     |
[INFO] [stderr] 187 |     let mut f = try!(File::open(file));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:189:5
[INFO] [stderr]     |
[INFO] [stderr] 189 |     try!(f.read_to_string(&mut s));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:170:50
[INFO] [stderr]     |
[INFO] [stderr] 170 | fn unwrap_collection<T, K>(item: &Yaml, mapper: &Fn(&Yaml) -> K) -> T
[INFO] [stderr]     |                                                  ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Yaml) -> K`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0283]: type annotations needed
[INFO] [stderr]   --> src/utils.rs:20:32
[INFO] [stderr]    |
[INFO] [stderr] 20 |                 let strref = c.as_ref();
[INFO] [stderr]    |                                ^^^^^^ cannot infer type for enum `std::path::Component<'_>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: cannot satisfy `std::path::Component<'_>: std::convert::AsRef<_>`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error; 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0283`.
[INFO] [stderr] error: could not compile `feaders`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "70a28fa3134853d062b60be4354168feeb8b7eb649157411c293785253a38d86"`
[INFO] running `"docker" "rm" "-f" "70a28fa3134853d062b60be4354168feeb8b7eb649157411c293785253a38d86"`
[INFO] [stdout] 70a28fa3134853d062b60be4354168feeb8b7eb649157411c293785253a38d86