[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 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-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 7fdd9b5ea240e7fd5f14bb65136bea774ead5d96056b6304ca420aa0c32719fe
[INFO] running `"docker" "start" "-a" "7fdd9b5ea240e7fd5f14bb65136bea774ead5d96056b6304ca420aa0c32719fe"`
[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 0.56s
[INFO] running `"docker" "inspect" "7fdd9b5ea240e7fd5f14bb65136bea774ead5d96056b6304ca420aa0c32719fe"`
[INFO] running `"docker" "rm" "-f" "7fdd9b5ea240e7fd5f14bb65136bea774ead5d96056b6304ca420aa0c32719fe"`
[INFO] [stdout] 7fdd9b5ea240e7fd5f14bb65136bea774ead5d96056b6304ca420aa0c32719fe
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 14cb0d4700dad7275c72c077d5858ddf6cd8dac03b1ea72cd8d4d62ae3486285
[INFO] running `"docker" "start" "-a" "14cb0d4700dad7275c72c077d5858ddf6cd8dac03b1ea72cd8d4d62ae3486285"`
[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 2.36s
[INFO] running `"docker" "inspect" "14cb0d4700dad7275c72c077d5858ddf6cd8dac03b1ea72cd8d4d62ae3486285"`
[INFO] running `"docker" "rm" "-f" "14cb0d4700dad7275c72c077d5858ddf6cd8dac03b1ea72cd8d4d62ae3486285"`
[INFO] [stdout] 14cb0d4700dad7275c72c077d5858ddf6cd8dac03b1ea72cd8d4d62ae3486285
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 3505099955a57737a37f48102237c4337db9c378220df98ff6cf5dbf2f6f48a3
[INFO] running `"docker" "start" "-a" "3505099955a57737a37f48102237c4337db9c378220df98ff6cf5dbf2f6f48a3"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/sink_splitter-5d55602a0002e6c2
[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_close ... 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] 
[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" "3505099955a57737a37f48102237c4337db9c378220df98ff6cf5dbf2f6f48a3"`
[INFO] running `"docker" "rm" "-f" "3505099955a57737a37f48102237c4337db9c378220df98ff6cf5dbf2f6f48a3"`
[INFO] [stdout] 3505099955a57737a37f48102237c4337db9c378220df98ff6cf5dbf2f6f48a3