[INFO] updating cached repository https://github.com/walfie/rs-streams-test [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 1bf0ab52883491bdbc7197f348862811bf024f5b [INFO] checking walfie/rs-streams-test against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwalfie%2Frs-streams-test" "/workspace/builds/worker-2/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/walfie/rs-streams-test on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd [INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/walfie/rs-streams-test [INFO] finished tweaking git repo https://github.com/walfie/rs-streams-test [INFO] tweaked toml for git repo https://github.com/walfie/rs-streams-test written to /workspace/builds/worker-2/source/Cargo.toml [INFO] crate git repo https://github.com/walfie/rs-streams-test already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] c0f341475fda810b77299cfda1fca1e0e2df0548298880c3a8ffb6427f2036c8 [INFO] running `"docker" "start" "-a" "c0f341475fda810b77299cfda1fca1e0e2df0548298880c3a8ffb6427f2036c8"` [INFO] [stderr] Checking libc v0.2.22 [INFO] [stderr] Checking futures v0.1.13 [INFO] [stderr] Checking scoped-tls v0.1.0 [INFO] [stderr] Checking iovec v0.1.0 [INFO] [stderr] Checking net2 v0.2.29 [INFO] [stderr] Checking bytes v0.4.3 [INFO] [stderr] Checking mio v0.6.7 [INFO] [stderr] Checking tokio-io v0.1.1 [INFO] [stderr] Checking tokio-core v0.1.7 [INFO] [stderr] Checking streams v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused variable: `sub` [INFO] [stderr] --> src/broadcast.rs:237:25 [INFO] [stderr] | [INFO] [stderr] 237 | let sub = manager.subscribe(1, tx); [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_sub` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `new` [INFO] [stderr] --> src/broadcast.rs:8:1 [INFO] [stderr] | [INFO] [stderr] 8 | / pub fn new(messages: MsgStream) [INFO] [stderr] 9 | | -> (SubscriptionManager, [INFO] [stderr] 10 | | Broadcast>) [INFO] [stderr] 11 | | where [INFO] [stderr] ... | [INFO] [stderr] 29 | | (manager, broadcast) [INFO] [stderr] 30 | | } [INFO] [stderr] | |_^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `subscribe` [INFO] [stderr] --> src/broadcast.rs:56:5 [INFO] [stderr] | [INFO] [stderr] 56 | / fn subscribe [INFO] [stderr] 57 | | ( [INFO] [stderr] 58 | | &self, [INFO] [stderr] 59 | | id: SubId, [INFO] [stderr] ... | [INFO] [stderr] 73 | | ) [INFO] [stderr] 74 | | } [INFO] [stderr] | |_____^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Subscribe` [INFO] [stderr] --> src/broadcast.rs:110:5 [INFO] [stderr] | [INFO] [stderr] 110 | Subscribe { id: SubId, subscriber: Sub }, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Message` [INFO] [stderr] --> src/broadcast.rs:112:5 [INFO] [stderr] | [INFO] [stderr] 112 | Message(Msg), [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Backlog` [INFO] [stderr] --> src/backlog.rs:4:1 [INFO] [stderr] | [INFO] [stderr] 4 | struct Backlog { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `with_capacity` [INFO] [stderr] --> src/backlog.rs:18:5 [INFO] [stderr] | [INFO] [stderr] 18 | fn with_capacity(capacity: usize) -> Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `insert` [INFO] [stderr] --> src/backlog.rs:32:5 [INFO] [stderr] | [INFO] [stderr] 32 | fn insert(&mut self, item: T) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `snapshot` [INFO] [stderr] --> src/backlog.rs:42:5 [INFO] [stderr] | [INFO] [stderr] 42 | fn snapshot(&self) -> Arc> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 7.83s [INFO] running `"docker" "inspect" "c0f341475fda810b77299cfda1fca1e0e2df0548298880c3a8ffb6427f2036c8"` [INFO] running `"docker" "rm" "-f" "c0f341475fda810b77299cfda1fca1e0e2df0548298880c3a8ffb6427f2036c8"` [INFO] [stdout] c0f341475fda810b77299cfda1fca1e0e2df0548298880c3a8ffb6427f2036c8