[INFO] fetching crate r-cache 0.3.4...
[INFO] checking r-cache-0.3.4 against try#bb9dbf1d07454a99066eabaabd5819851281494b for pr-80920
[INFO] extracting crate r-cache 0.3.4 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate r-cache 0.3.4 on toolchain bb9dbf1d07454a99066eabaabd5819851281494b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate r-cache 0.3.4
[INFO] finished tweaking crates.io crate r-cache 0.3.4
[INFO] tweaked toml for crates.io crate r-cache 0.3.4 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9730f1f0f4648127fda043e28fd34518ee5bd299e198ac3cb588475622524a9f
[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" "9730f1f0f4648127fda043e28fd34518ee5bd299e198ac3cb588475622524a9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9730f1f0f4648127fda043e28fd34518ee5bd299e198ac3cb588475622524a9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9730f1f0f4648127fda043e28fd34518ee5bd299e198ac3cb588475622524a9f", kill_on_drop: false }`
[INFO] [stdout] 9730f1f0f4648127fda043e28fd34518ee5bd299e198ac3cb588475622524a9f
[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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d9e0a03048c49d3a84c077f726b9977cffee8375d91b71d2156f336a6062634d
[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" "d9e0a03048c49d3a84c077f726b9977cffee8375d91b71d2156f336a6062634d", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]    Compiling log v0.4.13
[INFO] [stderr]     Checking futures-core v0.3.10
[INFO] [stderr]     Checking pin-project-lite v0.2.4
[INFO] [stderr]     Checking futures-io v0.3.10
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]     Checking fastrand v1.4.0
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking event-listener v2.5.1
[INFO] [stderr]     Checking vec-arena v1.0.0
[INFO] [stderr]     Checking async-task v4.0.3
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]     Checking nb-connect v1.0.2
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking async-mutex v1.4.0
[INFO] [stderr]    Compiling async-attributes v1.1.1
[INFO] [stderr]     Checking async-channel v1.5.1
[INFO] [stderr]     Checking polling v2.0.2
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking futures-lite v1.11.3
[INFO] [stderr]     Checking async-io v1.3.1
[INFO] [stderr]     Checking async-executor v1.4.0
[INFO] [stderr]     Checking blocking v1.0.2
[INFO] [stderr]     Checking async-global-executor v1.4.3
[INFO] [stderr]     Checking async-std v1.8.0
[INFO] [stderr]     Checking r-cache v0.3.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: no method named `remove_expired_items` found for struct `Cache<i8, &str>` in the current scope
[INFO] [stdout]    --> src/cache.rs:125:15
[INFO] [stdout]     |
[INFO] [stdout] 8   | pub struct Cache<T, V> {
[INFO] [stdout]     | ---------------------- method `remove_expired_items` not found for this
[INFO] [stdout] ...
[INFO] [stdout] 125 |         cache.remove_expired_items().await;
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^ help: there is an associated function with a similar name: `remove_expired`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `remove_expired_items` found for struct `Cache<i8, &str>` in the current scope
[INFO] [stdout]    --> src/cache.rs:135:15
[INFO] [stdout]     |
[INFO] [stdout] 8   | pub struct Cache<T, V> {
[INFO] [stdout]     | ---------------------- method `remove_expired_items` not found for this
[INFO] [stdout] ...
[INFO] [stdout] 135 |         cache.remove_expired_items().await;
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^ help: there is an associated function with a similar name: `remove_expired`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `remove_all_items` found for struct `Cache<i8, &str>` in the current scope
[INFO] [stdout]    --> src/cache.rs:145:15
[INFO] [stdout]     |
[INFO] [stdout] 8   | pub struct Cache<T, V> {
[INFO] [stdout]     | ---------------------- method `remove_all_items` not found for this
[INFO] [stdout] ...
[INFO] [stdout] 145 |         cache.remove_all_items().await;
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^ method not found in `Cache<i8, &str>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 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 `r-cache`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "d9e0a03048c49d3a84c077f726b9977cffee8375d91b71d2156f336a6062634d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9e0a03048c49d3a84c077f726b9977cffee8375d91b71d2156f336a6062634d", kill_on_drop: false }`
[INFO] [stdout] d9e0a03048c49d3a84c077f726b9977cffee8375d91b71d2156f336a6062634d