[INFO] crate cachy 0.2.0 is already in cache
[INFO] testing cachy-0.2.0 against 1.38.0 for beta-1.39-1
[INFO] extracting crate cachy 0.2.0 into work/builds/worker-4/source
[INFO] validating manifest of crates.io crate cachy 0.2.0 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 crates.io crate cachy 0.2.0
[INFO] finished tweaking crates.io crate cachy 0.2.0
[INFO] tweaked toml for crates.io crate cachy 0.2.0 written to work/builds/worker-4/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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-4/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-4/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] b79c2e9e065bc157602b42466b1d3ed513331781efe0d03ba77db2ece82c5b2a
[INFO] running `"docker" "start" "-a" "b79c2e9e065bc157602b42466b1d3ed513331781efe0d03ba77db2ece82c5b2a"`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]    Compiling bus v1.4.1
[INFO] [stderr]    Compiling cachy v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0599]: no method named `try_recv` found for type `&mut bus::BusReader<std::sync::Arc<R>>` in the current scope
[INFO] [stderr]   --> src/lib.rs:85:28
[INFO] [stderr]    |
[INFO] [stderr] 85 |             res = match sc.try_recv() {
[INFO] [stderr]    |                            ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: the method `try_recv` exists but the following trait bounds were not satisfied:
[INFO] [stderr]            `std::sync::Arc<R> : std::marker::Sync`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `try_recv` found for type `&mut bus::BusReader<std::sync::Arc<R>>` in the current scope
[INFO] [stderr]    --> src/lib.rs:148:95
[INFO] [stderr]     |
[INFO] [stderr] 148 |         let temp = itc.into_iter().filter_map(|(k, mut x)| match Rc::get_mut(&mut x).unwrap().try_recv() {
[INFO] [stderr]     |                                                                                               ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: the method `try_recv` exists but the following trait bounds were not satisfied:
[INFO] [stderr]             `std::sync::Arc<R> : std::marker::Sync`
[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 `cachy`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "b79c2e9e065bc157602b42466b1d3ed513331781efe0d03ba77db2ece82c5b2a"`
[INFO] running `"docker" "rm" "-f" "b79c2e9e065bc157602b42466b1d3ed513331781efe0d03ba77db2ece82c5b2a"`
[INFO] [stdout] b79c2e9e065bc157602b42466b1d3ed513331781efe0d03ba77db2ece82c5b2a