[INFO] fetching crate cachy 0.2.0...
[INFO] checking cachy-0.2.0 against master#6526e5c772f2da07db745c94ca6bb0a591a39ba4 for pr-80920
[INFO] extracting crate cachy 0.2.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate cachy 0.2.0 on toolchain 6526e5c772f2da07db745c94ca6bb0a591a39ba4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "read-manifest" "--manifest-path" "Cargo.toml", 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-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "fetch" "--locked" "--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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c04827907e7c6dcc59b8b858aac6a79b4efac418a048d0a553a44fa293b77820
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c04827907e7c6dcc59b8b858aac6a79b4efac418a048d0a553a44fa293b77820", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c04827907e7c6dcc59b8b858aac6a79b4efac418a048d0a553a44fa293b77820", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c04827907e7c6dcc59b8b858aac6a79b4efac418a048d0a553a44fa293b77820", kill_on_drop: false }`
[INFO] [stdout] c04827907e7c6dcc59b8b858aac6a79b4efac418a048d0a553a44fa293b77820
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4f09b6ec3acd528e76cb7a1c0c81af8620417373a3ba61133b9acf9c6bee304f
[INFO] running `Command { std: "docker" "start" "-a" "4f09b6ec3acd528e76cb7a1c0c81af8620417373a3ba61133b9acf9c6bee304f", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]     Checking atomic-option v0.1.2
[INFO] [stderr]     Checking libc v0.2.82
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking parking_lot_core v0.2.14
[INFO] [stderr]     Checking bus v1.4.1
[INFO] [stderr]     Checking cachy v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: no method named `try_recv` found for mutable reference `&mut BusReader<Arc<R>>` in the current scope
[INFO] [stdout]    --> src/lib.rs:85:28
[INFO] [stdout]     |
[INFO] [stdout] 85  |               res = match sc.try_recv() {
[INFO] [stdout]     |                              ^^^^^^^^ method not found in `&mut BusReader<Arc<R>>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: the method `try_recv` exists but the following trait bounds were not satisfied:
[INFO] [stdout]             `Arc<R>: Sync`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `try_recv` found for mutable reference `&mut BusReader<Arc<R>>` in the current scope
[INFO] [stdout]    --> src/lib.rs:85:28
[INFO] [stdout]     |
[INFO] [stdout] 85  |               res = match sc.try_recv() {
[INFO] [stdout]     |                              ^^^^^^^^ method not found in `&mut BusReader<Arc<R>>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: the method `try_recv` exists but the following trait bounds were not satisfied:
[INFO] [stdout]             `Arc<R>: Sync`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `try_recv` found for mutable reference `&mut BusReader<Arc<R>>` in the current scope
[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 not found in `&mut BusReader<Arc<R>>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: the method `try_recv` exists but the following trait bounds were not satisfied:
[INFO] [stdout]             `Arc<R>: Sync`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `try_recv` found for mutable reference `&mut BusReader<Arc<R>>` in the current scope
[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 not found in `&mut BusReader<Arc<R>>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: the method `try_recv` exists but the following trait bounds were not satisfied:
[INFO] [stdout]             `Arc<R>: Sync`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cachy`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4f09b6ec3acd528e76cb7a1c0c81af8620417373a3ba61133b9acf9c6bee304f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f09b6ec3acd528e76cb7a1c0c81af8620417373a3ba61133b9acf9c6bee304f", kill_on_drop: false }`
[INFO] [stdout] 4f09b6ec3acd528e76cb7a1c0c81af8620417373a3ba61133b9acf9c6bee304f