[INFO] crate spaniel 0.1.0 is already in cache
[INFO] extracting crate spaniel 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/spaniel/0.1.0
[INFO] extracting crate spaniel 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/spaniel/0.1.0
[INFO] validating manifest of spaniel-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 spaniel-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 spaniel-0.1.0
[INFO] finished frobbing spaniel-0.1.0
[INFO] frobbed toml for spaniel-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/spaniel/0.1.0/Cargo.toml
[INFO] started frobbing spaniel-0.1.0
[INFO] finished frobbing spaniel-0.1.0
[INFO] frobbed toml for spaniel-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/spaniel/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 spaniel-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-2/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/spaniel/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] 986e209dcac2def88213752c1839b1d1c4ce687e9f969864e9ce7ae1ffa6e1d4
[INFO] running `"docker" "start" "-a" "986e209dcac2def88213752c1839b1d1c4ce687e9f969864e9ce7ae1ffa6e1d4"`
[INFO] [stderr]    Compiling spaniel v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'tokio_io::codec::length_delimited': Moved to tokio-codec
[INFO] [stderr]   --> src/protocol/codec/mod.rs:11:41
[INFO] [stderr]    |
[INFO] [stderr] 11 | use tokio_io::codec::length_delimited::{self, Framed};
[INFO] [stderr]    |                                         ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'tokio_io::codec::length_delimited::Framed': Moved to tokio-codec
[INFO] [stderr]   --> src/protocol/codec/mod.rs:11:47
[INFO] [stderr]    |
[INFO] [stderr] 11 | use tokio_io::codec::length_delimited::{self, Framed};
[INFO] [stderr]    |                                               ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'tokio_io::codec::length_delimited::Framed': Moved to tokio-codec
[INFO] [stderr]   --> src/protocol/codec/mod.rs:23:12
[INFO] [stderr]    |
[INFO] [stderr] 23 |     inner: Framed<T, Bytes>,
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'tokio_io::codec::length_delimited::Builder': Moved to tokio-codec
[INFO] [stderr]   --> src/protocol/codec/mod.rs:32:20
[INFO] [stderr]    |
[INFO] [stderr] 32 |             inner: length_delimited::Builder::new()
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'tokio_io::codec::length_delimited': Moved to tokio-codec
[INFO] [stderr]  --> src/protocol/codec/reader.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use tokio_io::codec::length_delimited;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'tokio_io::codec::length_delimited::FramedRead': Moved to tokio-codec
[INFO] [stderr]   --> src/protocol/codec/reader.rs:12:10
[INFO] [stderr]    |
[INFO] [stderr] 12 |     src: length_delimited::FramedRead<T>,
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'tokio_io::codec::length_delimited::Builder': Moved to tokio-codec
[INFO] [stderr]   --> src/protocol/codec/reader.rs:19:19
[INFO] [stderr]    |
[INFO] [stderr] 19 |         let src = length_delimited::Builder::new()
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `src`
[INFO] [stderr]    --> src/protocol/frames.rs:305:28
[INFO] [stderr]     |
[INFO] [stderr] 305 |     fn decode_from<B: Buf>(src: &mut B) -> Result<Frame, FramingError> {
[INFO] [stderr]     |                            ^^^ help: consider prefixing with an underscore: `_src`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dst`
[INFO] [stderr]    --> src/protocol/frames.rs:309:38
[INFO] [stderr]     |
[INFO] [stderr] 309 |     fn encode_into<B: BufMut>(&self, dst: &mut B) -> Result<(), ()> {
[INFO] [stderr]     |                                      ^^^ help: consider prefixing with an underscore: `_dst`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/protocol/codec/writer.rs:196:21
[INFO] [stderr]     |
[INFO] [stderr] 196 |                 let mut buf = self.current.as_mut().unwrap();
[INFO] [stderr]     |                     ----^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `notify_all`
[INFO] [stderr]    --> src/connection.rs:195:5
[INFO] [stderr]     |
[INFO] [stderr] 195 |     fn notify_all(&mut self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `CreditBased`
[INFO] [stderr]  --> src/flow_control.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     CreditBased(FlowControlRatio),
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `push_front`
[INFO] [stderr]   --> src/protocol/codec/buffer.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn push_front(&mut self, value: B) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Error`
[INFO] [stderr]   --> src/protocol/codec/writer.rs:72:5
[INFO] [stderr]    |
[INFO] [stderr] 72 |     Error,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_watermarks`
[INFO] [stderr]    --> src/protocol/codec/writer.rs:119:5
[INFO] [stderr]     |
[INFO] [stderr] 119 |     pub fn set_watermarks(&mut self, high: usize, low: usize) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `write_and_flush`
[INFO] [stderr]    --> src/protocol/codec/writer.rs:220:5
[INFO] [stderr]     |
[INFO] [stderr] 220 |     pub fn write_and_flush(&mut self, data: Bytes) -> Poll<(), std::io::Error> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.46s
[INFO] running `"docker" "inspect" "986e209dcac2def88213752c1839b1d1c4ce687e9f969864e9ce7ae1ffa6e1d4"`
[INFO] running `"docker" "rm" "-f" "986e209dcac2def88213752c1839b1d1c4ce687e9f969864e9ce7ae1ffa6e1d4"`
[INFO] [stdout] 986e209dcac2def88213752c1839b1d1c4ce687e9f969864e9ce7ae1ffa6e1d4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/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/spaniel/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] e40ca55a24153f5694cf468cbb2c8df66610cefaae207f16b10963f147e2c91e
[INFO] running `"docker" "start" "-a" "e40ca55a24153f5694cf468cbb2c8df66610cefaae207f16b10963f147e2c91e"`
[INFO] [stderr]    Compiling spaniel v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'tokio_io::codec::length_delimited': Moved to tokio-codec
[INFO] [stderr]   --> src/protocol/codec/mod.rs:11:41
[INFO] [stderr]    |
[INFO] [stderr] 11 | use tokio_io::codec::length_delimited::{self, Framed};
[INFO] [stderr]    |                                         ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'tokio_io::codec::length_delimited::Framed': Moved to tokio-codec
[INFO] [stderr]   --> src/protocol/codec/mod.rs:11:47
[INFO] [stderr]    |
[INFO] [stderr] 11 | use tokio_io::codec::length_delimited::{self, Framed};
[INFO] [stderr]    |                                               ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'tokio_io::codec::length_delimited::Framed': Moved to tokio-codec
[INFO] [stderr]   --> src/protocol/codec/mod.rs:23:12
[INFO] [stderr]    |
[INFO] [stderr] 23 |     inner: Framed<T, Bytes>,
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'tokio_io::codec::length_delimited::Builder': Moved to tokio-codec
[INFO] [stderr]   --> src/protocol/codec/mod.rs:32:20
[INFO] [stderr]    |
[INFO] [stderr] 32 |             inner: length_delimited::Builder::new()
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'tokio_io::codec::length_delimited': Moved to tokio-codec
[INFO] [stderr]  --> src/protocol/codec/reader.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use tokio_io::codec::length_delimited;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'tokio_io::codec::length_delimited::FramedRead': Moved to tokio-codec
[INFO] [stderr]   --> src/protocol/codec/reader.rs:12:10
[INFO] [stderr]    |
[INFO] [stderr] 12 |     src: length_delimited::FramedRead<T>,
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'tokio_io::codec::length_delimited::Builder': Moved to tokio-codec
[INFO] [stderr]   --> src/protocol/codec/reader.rs:19:19
[INFO] [stderr]    |
[INFO] [stderr] 19 |         let src = length_delimited::Builder::new()
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `src`
[INFO] [stderr]    --> src/protocol/frames.rs:305:28
[INFO] [stderr]     |
[INFO] [stderr] 305 |     fn decode_from<B: Buf>(src: &mut B) -> Result<Frame, FramingError> {
[INFO] [stderr]     |                            ^^^ help: consider prefixing with an underscore: `_src`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dst`
[INFO] [stderr]    --> src/protocol/frames.rs:309:38
[INFO] [stderr]     |
[INFO] [stderr] 309 |     fn encode_into<B: BufMut>(&self, dst: &mut B) -> Result<(), ()> {
[INFO] [stderr]     |                                      ^^^ help: consider prefixing with an underscore: `_dst`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/protocol/codec/writer.rs:196:21
[INFO] [stderr]     |
[INFO] [stderr] 196 |                 let mut buf = self.current.as_mut().unwrap();
[INFO] [stderr]     |                     ----^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `notify_all`
[INFO] [stderr]    --> src/connection.rs:195:5
[INFO] [stderr]     |
[INFO] [stderr] 195 |     fn notify_all(&mut self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `CreditBased`
[INFO] [stderr]  --> src/flow_control.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     CreditBased(FlowControlRatio),
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `push_front`
[INFO] [stderr]   --> src/protocol/codec/buffer.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn push_front(&mut self, value: B) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Error`
[INFO] [stderr]   --> src/protocol/codec/writer.rs:72:5
[INFO] [stderr]    |
[INFO] [stderr] 72 |     Error,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_watermarks`
[INFO] [stderr]    --> src/protocol/codec/writer.rs:119:5
[INFO] [stderr]     |
[INFO] [stderr] 119 |     pub fn set_watermarks(&mut self, high: usize, low: usize) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `write_and_flush`
[INFO] [stderr]    --> src/protocol/codec/writer.rs:220:5
[INFO] [stderr]     |
[INFO] [stderr] 220 |     pub fn write_and_flush(&mut self, data: Bytes) -> Poll<(), std::io::Error> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.33s
[INFO] running `"docker" "inspect" "e40ca55a24153f5694cf468cbb2c8df66610cefaae207f16b10963f147e2c91e"`
[INFO] running `"docker" "rm" "-f" "e40ca55a24153f5694cf468cbb2c8df66610cefaae207f16b10963f147e2c91e"`
[INFO] [stdout] e40ca55a24153f5694cf468cbb2c8df66610cefaae207f16b10963f147e2c91e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/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/spaniel/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] fc246defcc81ad81a8ccdfd4ac586ca0b5dbb1dda3dc600694dbd71981ca728e
[INFO] running `"docker" "start" "-a" "fc246defcc81ad81a8ccdfd4ac586ca0b5dbb1dda3dc600694dbd71981ca728e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/spaniel-c7cba9a011bae1c4
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests spaniel
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "fc246defcc81ad81a8ccdfd4ac586ca0b5dbb1dda3dc600694dbd71981ca728e"`
[INFO] running `"docker" "rm" "-f" "fc246defcc81ad81a8ccdfd4ac586ca0b5dbb1dda3dc600694dbd71981ca728e"`
[INFO] [stdout] fc246defcc81ad81a8ccdfd4ac586ca0b5dbb1dda3dc600694dbd71981ca728e