[INFO] updating cached repository walfie/rs-streams-test [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/walfie/rs-streams-test [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/walfie/rs-streams-test" "work/ex/beta-1.38-1/sources/1.37.0/gh/walfie/rs-streams-test"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/walfie/rs-streams-test'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/walfie/rs-streams-test" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/walfie/rs-streams-test"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/walfie/rs-streams-test'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 1bf0ab52883491bdbc7197f348862811bf024f5b [INFO] sha for GitHub repo walfie/rs-streams-test: 1bf0ab52883491bdbc7197f348862811bf024f5b [INFO] validating manifest of walfie/rs-streams-test on toolchain 1.37.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of walfie/rs-streams-test on toolchain beta-2019-08-13 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing walfie/rs-streams-test [INFO] finished frobbing walfie/rs-streams-test [INFO] frobbed toml for walfie/rs-streams-test written to work/ex/beta-1.38-1/sources/1.37.0/gh/walfie/rs-streams-test/Cargo.toml [INFO] started frobbing walfie/rs-streams-test [INFO] finished frobbing walfie/rs-streams-test [INFO] frobbed toml for walfie/rs-streams-test written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/walfie/rs-streams-test/Cargo.toml [INFO] crate walfie/rs-streams-test already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing walfie/rs-streams-test against 1.37.0 for beta-1.38-1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/walfie/rs-streams-test:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"` [INFO] [stdout] 6d4e1c4fce90402a45981503be85ad9de2b52967884c09c5b603222bd82550a9 [INFO] running `"docker" "start" "-a" "6d4e1c4fce90402a45981503be85ad9de2b52967884c09c5b603222bd82550a9"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling iovec v0.1.0 [INFO] [stderr] Compiling net2 v0.2.29 [INFO] [stderr] Compiling bytes v0.4.3 [INFO] [stderr] Compiling mio v0.6.7 [INFO] [stderr] Compiling tokio-io v0.1.1 [INFO] [stderr] Compiling tokio-core v0.1.7 [INFO] [stderr] Compiling streams v0.1.0 (/opt/crater/workdir) [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: struct is never constructed: `EventStream` [INFO] [stderr] --> src/broadcast.rs:33:1 [INFO] [stderr] | [INFO] [stderr] 33 | / pub struct EventStream( [INFO] [stderr] 34 | | Select>, [INFO] [stderr] 35 | | Map Event>> [INFO] [stderr] 36 | | ); [INFO] [stderr] | |__^ [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: `Broadcast` [INFO] [stderr] --> src/broadcast.rs:115:1 [INFO] [stderr] | [INFO] [stderr] 115 | pub struct Broadcast { [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 11.25s [INFO] running `"docker" "inspect" "6d4e1c4fce90402a45981503be85ad9de2b52967884c09c5b603222bd82550a9"` [INFO] running `"docker" "rm" "-f" "6d4e1c4fce90402a45981503be85ad9de2b52967884c09c5b603222bd82550a9"` [INFO] [stdout] 6d4e1c4fce90402a45981503be85ad9de2b52967884c09c5b603222bd82550a9 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/walfie/rs-streams-test:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen" "--no-run"` [INFO] [stdout] 709fcbaa0bad5a9c8147a4d1deb81692d0ed9a2fe4cb2ffa91b85af34bcf1432 [INFO] running `"docker" "start" "-a" "709fcbaa0bad5a9c8147a4d1deb81692d0ed9a2fe4cb2ffa91b85af34bcf1432"` [INFO] [stderr] Compiling streams v0.1.0 (/opt/crater/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] Finished dev [unoptimized + debuginfo] target(s) in 2.36s [INFO] running `"docker" "inspect" "709fcbaa0bad5a9c8147a4d1deb81692d0ed9a2fe4cb2ffa91b85af34bcf1432"` [INFO] running `"docker" "rm" "-f" "709fcbaa0bad5a9c8147a4d1deb81692d0ed9a2fe4cb2ffa91b85af34bcf1432"` [INFO] [stdout] 709fcbaa0bad5a9c8147a4d1deb81692d0ed9a2fe4cb2ffa91b85af34bcf1432 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/walfie/rs-streams-test:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen"` [INFO] [stdout] 235dbef7f8f3163cf981cbb5951918833147af6e26e246e848fbf505ba12f986 [INFO] running `"docker" "start" "-a" "235dbef7f8f3163cf981cbb5951918833147af6e26e246e848fbf505ba12f986"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.05s [INFO] [stderr] Running /opt/crater/target/debug/deps/streams-ce449aab2fdd59f2 [INFO] [stdout] [INFO] [stdout] running 4 tests [INFO] [stdout] test backlog::test::maintain_initial_capacity ... ok [INFO] [stdout] test backlog::test::multiple_overflows ... ok [INFO] [stdout] test broadcast::test::test_broadcast ... ok [INFO] [stdout] test broadcast::test::unsubscribe_when_out_of_scope ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `"docker" "inspect" "235dbef7f8f3163cf981cbb5951918833147af6e26e246e848fbf505ba12f986"` [INFO] running `"docker" "rm" "-f" "235dbef7f8f3163cf981cbb5951918833147af6e26e246e848fbf505ba12f986"` [INFO] [stdout] 235dbef7f8f3163cf981cbb5951918833147af6e26e246e848fbf505ba12f986