[INFO] updating cached repository nuclearfurnace/synchrotron
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/nuclearfurnace/synchrotron
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/nuclearfurnace/synchrotron" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/nuclearfurnace/synchrotron"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/nuclearfurnace/synchrotron'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/nuclearfurnace/synchrotron" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/nuclearfurnace/synchrotron"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/nuclearfurnace/synchrotron'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8732ceaad3a6efec8485e5281f765c243631a823
[INFO] sha for GitHub repo nuclearfurnace/synchrotron: 8732ceaad3a6efec8485e5281f765c243631a823
[INFO] validating manifest of nuclearfurnace/synchrotron on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of nuclearfurnace/synchrotron on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing nuclearfurnace/synchrotron
[INFO] finished frobbing nuclearfurnace/synchrotron
[INFO] frobbed toml for nuclearfurnace/synchrotron written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/nuclearfurnace/synchrotron/Cargo.toml
[INFO] started frobbing nuclearfurnace/synchrotron
[INFO] finished frobbing nuclearfurnace/synchrotron
[INFO] frobbed toml for nuclearfurnace/synchrotron written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/nuclearfurnace/synchrotron/Cargo.toml
[INFO] crate nuclearfurnace/synchrotron has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing nuclearfurnace/synchrotron against try#7fea0229842e79db1159ea58ad9a653b288efee9 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-5/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/nuclearfurnace/synchrotron:/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=forbid" "-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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "build" "--frozen"`
[INFO] [stdout] 8596dec0059eeb10ccc4e64a594b7ca79710deffee1942baa86fdd0992e26973
[INFO] running `"docker" "start" "-a" "8596dec0059eeb10ccc4e64a594b7ca79710deffee1942baa86fdd0992e26973"`
[INFO] [stderr]    Compiling slog v2.4.1
[INFO] [stderr]    Compiling synchrotron v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]    Compiling arc-swap v0.3.0
[INFO] [stderr]    Compiling term v0.5.1
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling crossbeam-utils v0.3.2
[INFO] [stderr]    Compiling futures-turnstyle v3.0.0
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling bytes v0.4.11
[INFO] [stderr]    Compiling crossbeam-epoch v0.5.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.6.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.4.3
[INFO] [stderr]    Compiling mio v0.6.16
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling signal-hook v0.1.5
[INFO] [stderr]    Compiling tokio-evacuate v1.1.0
[INFO] [stderr]    Compiling btoi v0.4.0
[INFO] [stderr]    Compiling serde_json v1.0.33
[INFO] [stderr]    Compiling nom v4.1.0
[INFO] [stderr]    Compiling crossbeam-arccell v0.6.4
[INFO] [stderr]    Compiling tokio-io v0.1.9
[INFO] [stderr]    Compiling crossbeam-deque v0.6.1
[INFO] [stderr]    Compiling crossbeam-deque v0.5.2
[INFO] [stderr]    Compiling flate2 v1.0.3
[INFO] [stderr]    Compiling chrono v0.4.6
[INFO] [stderr]    Compiling digest v0.6.2
[INFO] [stderr]    Compiling regex v1.0.5
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling serde_derive v1.0.80
[INFO] [stderr]    Compiling tokio-threadpool v0.1.7
[INFO] [stderr]    Compiling rand v0.6.1
[INFO] [stderr]    Compiling pruefung v0.2.1
[INFO] [stderr]    Compiling slog-scope v4.0.1
[INFO] [stderr]    Compiling slog-async v2.3.0
[INFO] [stderr]    Compiling tokio-codec v0.1.1
[INFO] [stderr]    Compiling hdrhistogram v6.1.0
[INFO] [stderr]    Compiling tokio-reactor v0.1.6
[INFO] [stderr]    Compiling crossbeam-channel v0.2.6
[INFO] [stderr]    Compiling slog-term v2.4.0
[INFO] [stderr]    Compiling config v0.9.1
[INFO] [stderr]    Compiling slog-stdlog v3.0.2
[INFO] [stderr]    Compiling tokio-fs v0.1.3
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling crossbeam v0.4.1
[INFO] [stderr]    Compiling env_logger v0.5.13
[INFO] [stderr]    Compiling tokio-tcp v0.1.2
[INFO] [stderr]    Compiling tokio-uds v0.2.2
[INFO] [stderr]    Compiling tokio-udp v0.1.2
[INFO] [stderr]    Compiling parking_lot v0.7.0
[INFO] [stderr]    Compiling hotmic v0.2.1
[INFO] [stderr]    Compiling tokio v0.1.11
[INFO] [stderr]    Compiling tokio-io-pool v0.1.4
[INFO] [stderr] warning: unused variable: `client_addr`
[INFO] [stderr]    --> src/listener.rs:194:17
[INFO] [stderr]     |
[INFO] [stderr] 194 |             let client_addr = client.peer_addr().unwrap();
[INFO] [stderr]     |                 ^^^^^^^^^^^ help: consider prefixing with an underscore: `_client_addr`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `update_latency`
[INFO] [stderr]    --> src/metrics/mod.rs:102:5
[INFO] [stderr]     |
[INFO] [stderr] 102 |     pub fn update_latency(&mut self, key: Metrics, start: Instant, stop: Instant) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Empty`
[INFO] [stderr]   --> src/protocol/errors.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     Empty,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `client_closed`
[INFO] [stderr]   --> src/protocol/errors.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     pub fn client_closed(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `REDIS_STATUS_BUF`
[INFO] [stderr]   --> src/protocol/redis.rs:39:1
[INFO] [stderr]    |
[INFO] [stderr] 39 | const REDIS_STATUS_BUF: [u8; 1] = [REDIS_COMMAND_STATUS];
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from_status`
[INFO] [stderr]    --> src/protocol/redis.rs:127:5
[INFO] [stderr]     |
[INFO] [stderr] 127 |     pub fn from_status(status_str: &str) -> RedisMessage {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 27s
[INFO] running `"docker" "inspect" "8596dec0059eeb10ccc4e64a594b7ca79710deffee1942baa86fdd0992e26973"`
[INFO] running `"docker" "rm" "-f" "8596dec0059eeb10ccc4e64a594b7ca79710deffee1942baa86fdd0992e26973"`
[INFO] [stdout] 8596dec0059eeb10ccc4e64a594b7ca79710deffee1942baa86fdd0992e26973
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-5/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/nuclearfurnace/synchrotron:/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=forbid" "-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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 8b32adf67375abeeecc8415f189cdafcc51bf421df2309fd2b36fab3ec0be39a
[INFO] running `"docker" "start" "-a" "8b32adf67375abeeecc8415f189cdafcc51bf421df2309fd2b36fab3ec0be39a"`
[INFO] [stderr]    Compiling spectral v0.6.0
[INFO] [stderr]    Compiling synchrotron v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `client_addr`
[INFO] [stderr]    --> src/listener.rs:194:17
[INFO] [stderr]     |
[INFO] [stderr] 194 |             let client_addr = client.peer_addr().unwrap();
[INFO] [stderr]     |                 ^^^^^^^^^^^ help: consider prefixing with an underscore: `_client_addr`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `update_latency`
[INFO] [stderr]    --> src/metrics/mod.rs:102:5
[INFO] [stderr]     |
[INFO] [stderr] 102 |     pub fn update_latency(&mut self, key: Metrics, start: Instant, stop: Instant) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Empty`
[INFO] [stderr]   --> src/protocol/errors.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     Empty,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `client_closed`
[INFO] [stderr]   --> src/protocol/errors.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     pub fn client_closed(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.50s
[INFO] running `"docker" "inspect" "8b32adf67375abeeecc8415f189cdafcc51bf421df2309fd2b36fab3ec0be39a"`
[INFO] running `"docker" "rm" "-f" "8b32adf67375abeeecc8415f189cdafcc51bf421df2309fd2b36fab3ec0be39a"`
[INFO] [stdout] 8b32adf67375abeeecc8415f189cdafcc51bf421df2309fd2b36fab3ec0be39a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-5/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/nuclearfurnace/synchrotron:/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=forbid" "-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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen"`
[INFO] [stdout] 62b60b538c33a1e92b79231ea5a5f5a9706eb2759031f200c17d72bb42bdf317
[INFO] running `"docker" "start" "-a" "62b60b538c33a1e92b79231ea5a5f5a9706eb2759031f200c17d72bb42bdf317"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.23s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/synchrotron-ce3fb68e40547214
[INFO] [stdout] 
[INFO] [stdout] running 26 tests
[INFO] [stdout] test backend::redis::tests::test_get_data_buffer ... ok
[INFO] [stdout] test protocol::redis::tests::bench_ping_lower ... ok
[INFO] [stdout] test protocol::redis::tests::bench_short_circuit_0_zero_data ... ok
[INFO] [stdout] test protocol::redis::tests::bench_short_circuit_1_no_array_crlf ... ok
[INFO] [stdout] test protocol::redis::tests::bench_short_circuit_4_missing_arg ... ok
[INFO] [stdout] test protocol::redis::tests::bench_short_circuit_2_no_arg_len_crlf ... ok
[INFO] [stdout] test protocol::redis::tests::bench_short_circuit_3_partial_arg ... ok
[INFO] [stdout] test protocol::redis::tests::bench_ping_upper ... ok
[INFO] [stdout] test protocol::redis::tests::parse_error ... ok
[INFO] [stdout] test protocol::redis::tests::bench_short_circuit_5_arg_len_past_end ... ok
[INFO] [stdout] test protocol::redis::tests::parse_bulk_with_null ... ok
[INFO] [stdout] test protocol::redis::tests::parse_get_simple ... ok
[INFO] [stdout] test protocol::redis::tests::parse_integer ... ok
[INFO] [stdout] test protocol::redis::tests::parse_null ... ok
[INFO] [stdout] test protocol::redis::tests::parse_short_circuit_arg_len_past_end ... ok
[INFO] [stdout] test protocol::redis::tests::parse_ok ... ok
[INFO] [stdout] test protocol::redis::tests::parse_short_circuit_missing_arg ... ok
[INFO] [stdout] test protocol::redis::tests::parse_short_circuit_no_array_crlf ... ok
[INFO] [stdout] test protocol::redis::tests::parse_short_circuit_partial_arg ... ok
[INFO] [stdout] test protocol::redis::tests::parse_short_circuit_no_arg_len_crlf ... ok
[INFO] [stdout] test protocol::redis::tests::parse_short_circuit_zero_data ... ok
[INFO] [stdout] test protocol::redis::tests::parse_status ... ok
[INFO] [stdout] test backend::redis::tests::test_is_multi_message ... ok
[INFO] [stdout] test protocol::redis::tests::bench_parse_get_simple ... ok
[INFO] [stdout] test protocol::redis::tests::parse_quit ... ok
[INFO] [stdout] test protocol::redis::tests::parse_ping ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 26 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "62b60b538c33a1e92b79231ea5a5f5a9706eb2759031f200c17d72bb42bdf317"`
[INFO] running `"docker" "rm" "-f" "62b60b538c33a1e92b79231ea5a5f5a9706eb2759031f200c17d72bb42bdf317"`
[INFO] [stdout] 62b60b538c33a1e92b79231ea5a5f5a9706eb2759031f200c17d72bb42bdf317