[INFO] crate sink-splitter 0.1.0 is already in cache
[INFO] extracting crate sink-splitter 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/sink-splitter/0.1.0
[INFO] extracting crate sink-splitter 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/sink-splitter/0.1.0
[INFO] validating manifest of sink-splitter-0.1.0 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 sink-splitter-0.1.0 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 sink-splitter-0.1.0
[INFO] finished frobbing sink-splitter-0.1.0
[INFO] frobbed toml for sink-splitter-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/sink-splitter/0.1.0/Cargo.toml
[INFO] started frobbing sink-splitter-0.1.0
[INFO] finished frobbing sink-splitter-0.1.0
[INFO] frobbed toml for sink-splitter-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/sink-splitter/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 sink-splitter-0.1.0 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/sink-splitter/0.1.0:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] e687e6f56bef742a0d6aa893d11e00f445c282f5eba9bbf624a5e39ddc6ebdf2
[INFO] running `"docker" "start" "-a" "e687e6f56bef742a0d6aa893d11e00f445c282f5eba9bbf624a5e39ddc6ebdf2"`
[INFO] [stderr]    Compiling sink-splitter v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:102:19
[INFO] [stderr]     |
[INFO] [stderr] 102 |         for (key, mut sink) in &mut self.inner.borrow_mut().sinks {
[INFO] [stderr]     |                   ----^^^^
[INFO] [stderr]     |                   |
[INFO] [stderr]     |                   help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]    --> src/lib.rs:1:9
[INFO] [stderr]     |
[INFO] [stderr] 1   | #![deny(warnings)]
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr]     = note: `#[warn(unused_mut)]` implied by `#[warn(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:133:19
[INFO] [stderr]     |
[INFO] [stderr] 133 |         for (key, mut sink) in &mut self.inner.borrow_mut().sinks {
[INFO] [stderr]     |                   ----^^^^
[INFO] [stderr]     |                   |
[INFO] [stderr]     |                   help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `"docker" "inspect" "e687e6f56bef742a0d6aa893d11e00f445c282f5eba9bbf624a5e39ddc6ebdf2"`
[INFO] running `"docker" "rm" "-f" "e687e6f56bef742a0d6aa893d11e00f445c282f5eba9bbf624a5e39ddc6ebdf2"`
[INFO] [stdout] e687e6f56bef742a0d6aa893d11e00f445c282f5eba9bbf624a5e39ddc6ebdf2
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/sink-splitter/0.1.0:/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] cd99179157604c11d2563e85ba3918ae24b475a182ba9cb571f298f0b5415a61
[INFO] running `"docker" "start" "-a" "cd99179157604c11d2563e85ba3918ae24b475a182ba9cb571f298f0b5415a61"`
[INFO] [stderr]    Compiling error-test-sinks v0.1.1
[INFO] [stderr]    Compiling sink-splitter v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:102:19
[INFO] [stderr]     |
[INFO] [stderr] 102 |         for (key, mut sink) in &mut self.inner.borrow_mut().sinks {
[INFO] [stderr]     |                   ----^^^^
[INFO] [stderr]     |                   |
[INFO] [stderr]     |                   help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]    --> src/lib.rs:1:9
[INFO] [stderr]     |
[INFO] [stderr] 1   | #![deny(warnings)]
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr]     = note: `#[warn(unused_mut)]` implied by `#[warn(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:133:19
[INFO] [stderr]     |
[INFO] [stderr] 133 |         for (key, mut sink) in &mut self.inner.borrow_mut().sinks {
[INFO] [stderr]     |                   ----^^^^
[INFO] [stderr]     |                   |
[INFO] [stderr]     |                   help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.46s
[INFO] running `"docker" "inspect" "cd99179157604c11d2563e85ba3918ae24b475a182ba9cb571f298f0b5415a61"`
[INFO] running `"docker" "rm" "-f" "cd99179157604c11d2563e85ba3918ae24b475a182ba9cb571f298f0b5415a61"`
[INFO] [stdout] cd99179157604c11d2563e85ba3918ae24b475a182ba9cb571f298f0b5415a61
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/sink-splitter/0.1.0:/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 71a2cd9af11d140def74e33a832a538361ed159f57e29e19d88fbb43e020ab1c
[INFO] running `"docker" "start" "-a" "71a2cd9af11d140def74e33a832a538361ed159f57e29e19d88fbb43e020ab1c"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/sink_splitter-2d76915edafa609c
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test test::basic ... ok
[INFO] [stdout] test test::test_error_output_sink_start_send ... ok
[INFO] [stdout] test test::test_error_output_sink_poll_complete ... ok
[INFO] [stdout] test test::test_error_output_sink_does_not_exist ... ok
[INFO] [stdout] test test::test_error_output_sink_close ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests sink-splitter
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs -  (line 9) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "71a2cd9af11d140def74e33a832a538361ed159f57e29e19d88fbb43e020ab1c"`
[INFO] running `"docker" "rm" "-f" "71a2cd9af11d140def74e33a832a538361ed159f57e29e19d88fbb43e020ab1c"`
[INFO] [stdout] 71a2cd9af11d140def74e33a832a538361ed159f57e29e19d88fbb43e020ab1c