[INFO] fetching crate cachy 0.2.0...
[INFO] testing cachy-0.2.0 against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] extracting crate cachy 0.2.0 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate cachy 0.2.0 on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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 /workspace/builds/worker-15/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c6ad26c33f3c93e0c3d02350c2b3064487d27b6149ee181db58b9df4c06d7d75
[INFO] running `Command { std: "docker" "start" "-a" "c6ad26c33f3c93e0c3d02350c2b3064487d27b6149ee181db58b9df4c06d7d75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c6ad26c33f3c93e0c3d02350c2b3064487d27b6149ee181db58b9df4c06d7d75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6ad26c33f3c93e0c3d02350c2b3064487d27b6149ee181db58b9df4c06d7d75", kill_on_drop: false }`
[INFO] [stdout] c6ad26c33f3c93e0c3d02350c2b3064487d27b6149ee181db58b9df4c06d7d75
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fa7d2d6d658f0e98b58feab48ba1da7d567aaadfe7dd25723696ff68cedca132
[INFO] running `Command { std: "docker" "start" "-a" "fa7d2d6d658f0e98b58feab48ba1da7d567aaadfe7dd25723696ff68cedca132", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]    Compiling atomic-option v0.1.2
[INFO] [stderr]    Compiling parking_lot_core v0.2.14
[INFO] [stderr]    Compiling bus v1.4.1
[INFO] [stderr]    Compiling cachy v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: the method `try_recv` exists for mutable reference `&mut BusReader<Arc<R>>`, but its trait bounds were not satisfied
[INFO] [stdout]    --> src/lib.rs:85:28
[INFO] [stdout]     |
[INFO] [stdout] 85  |               res = match sc.try_recv() {
[INFO] [stdout]     |                              ^^^^^^^^ method cannot be called on `&mut BusReader<Arc<R>>` due to unsatisfied trait bounds
[INFO] [stdout]     |
[INFO] [stdout]     = note: the following trait bounds were not satisfied:
[INFO] [stdout]             `Arc<R>: Sync`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: the method `try_recv` exists for mutable reference `&mut BusReader<Arc<R>>`, but its trait bounds were not satisfied
[INFO] [stdout]    --> src/lib.rs:148:95
[INFO] [stdout]     |
[INFO] [stdout] 148 |           let temp = itc.into_iter().filter_map(|(k, mut x)| match Rc::get_mut(&mut x).unwrap().try_recv() {
[INFO] [stdout]     |                                                                                                 ^^^^^^^^ method cannot be called on `&mut BusReader<Arc<R>>` due to unsatisfied trait bounds
[INFO] [stdout]     |
[INFO] [stdout]     = note: the following trait bounds were not satisfied:
[INFO] [stdout]             `Arc<R>: Sync`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cachy` due to 3 previous errors
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "fa7d2d6d658f0e98b58feab48ba1da7d567aaadfe7dd25723696ff68cedca132", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa7d2d6d658f0e98b58feab48ba1da7d567aaadfe7dd25723696ff68cedca132", kill_on_drop: false }`
[INFO] [stdout] fa7d2d6d658f0e98b58feab48ba1da7d567aaadfe7dd25723696ff68cedca132