[INFO] fetching crate cachy 0.2.0...
[INFO] checking cachy-0.2.0 against master#5e3f1b148db5bfa27fee52464ae1f5d34c49d77b for pr-75502
[INFO] extracting crate cachy 0.2.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate cachy 0.2.0 on toolchain 5e3f1b148db5bfa27fee52464ae1f5d34c49d77b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "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-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "metadata" "--no-deps" "--format-version=1", 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] 9051191e215652616a90c9afb5f930191aa94fbbf98c9f3162b8c5dcead8d480
[INFO] running `Command { std: "docker" "start" "-a" "9051191e215652616a90c9afb5f930191aa94fbbf98c9f3162b8c5dcead8d480", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9051191e215652616a90c9afb5f930191aa94fbbf98c9f3162b8c5dcead8d480", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9051191e215652616a90c9afb5f930191aa94fbbf98c9f3162b8c5dcead8d480", kill_on_drop: false }`
[INFO] [stdout] 9051191e215652616a90c9afb5f930191aa94fbbf98c9f3162b8c5dcead8d480
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "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] d8394dac8e9d6e331ff08b03806a692540f4738b91259f800e914128bd74d7ba
[INFO] running `Command { std: "docker" "start" "-a" "d8394dac8e9d6e331ff08b03806a692540f4738b91259f800e914128bd74d7ba", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking futures v0.1.29
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking smallvec v0.6.13
[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 bus::BusReader<std::sync::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 bus::BusReader<std::sync::Arc<R>>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: the method `try_recv` exists but the following trait bounds were not satisfied:
[INFO] [stdout]             `std::sync::Arc<R>: std::marker::Sync`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `try_recv` found for mutable reference `&mut bus::BusReader<std::sync::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 bus::BusReader<std::sync::Arc<R>>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: the method `try_recv` exists but the following trait bounds were not satisfied:
[INFO] [stdout]             `std::sync::Arc<R>: std::marker::Sync`
[INFO] [stdout] 
[INFO] [stdout] 
[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] [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] error[E0599]: no method named `try_recv` found for mutable reference `&mut bus::BusReader<std::sync::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 bus::BusReader<std::sync::Arc<R>>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: the method `try_recv` exists but the following trait bounds were not satisfied:
[INFO] [stdout]             `std::sync::Arc<R>: std::marker::Sync`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `try_recv` found for mutable reference `&mut bus::BusReader<std::sync::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 bus::BusReader<std::sync::Arc<R>>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: the method `try_recv` exists but the following trait bounds were not satisfied:
[INFO] [stdout]             `std::sync::Arc<R>: std::marker::Sync`
[INFO] [stdout] 
[INFO] [stdout] 
[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] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "d8394dac8e9d6e331ff08b03806a692540f4738b91259f800e914128bd74d7ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8394dac8e9d6e331ff08b03806a692540f4738b91259f800e914128bd74d7ba", kill_on_drop: false }`
[INFO] [stdout] d8394dac8e9d6e331ff08b03806a692540f4738b91259f800e914128bd74d7ba