[INFO] crate kafka 0.7.0 is already in cache
[INFO] extracting crate kafka 0.7.0 into work/ex/pr-57483/sources/master#2bde39b8edce6463e1c37f8a8082a875e7b536b1/reg/kafka/0.7.0
[INFO] extracting crate kafka 0.7.0 into work/ex/pr-57483/sources/try#0d8b5d1f16bab9e975695518ff8705bdab9fe94c/reg/kafka/0.7.0
[INFO] validating manifest of kafka-0.7.0 on toolchain master#2bde39b8edce6463e1c37f8a8082a875e7b536b1
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+2bde39b8edce6463e1c37f8a8082a875e7b536b1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of kafka-0.7.0 on toolchain try#0d8b5d1f16bab9e975695518ff8705bdab9fe94c
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0d8b5d1f16bab9e975695518ff8705bdab9fe94c-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing kafka-0.7.0
[INFO] finished frobbing kafka-0.7.0
[INFO] frobbed toml for kafka-0.7.0 written to work/ex/pr-57483/sources/master#2bde39b8edce6463e1c37f8a8082a875e7b536b1/reg/kafka/0.7.0/Cargo.toml
[INFO] started frobbing kafka-0.7.0
[INFO] finished frobbing kafka-0.7.0
[INFO] frobbed toml for kafka-0.7.0 written to work/ex/pr-57483/sources/try#0d8b5d1f16bab9e975695518ff8705bdab9fe94c/reg/kafka/0.7.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+2bde39b8edce6463e1c37f8a8082a875e7b536b1-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0d8b5d1f16bab9e975695518ff8705bdab9fe94c-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+2bde39b8edce6463e1c37f8a8082a875e7b536b1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0d8b5d1f16bab9e975695518ff8705bdab9fe94c-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking kafka-0.7.0 against master#2bde39b8edce6463e1c37f8a8082a875e7b536b1 for pr-57483
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57483/worker-7/master#2bde39b8edce6463e1c37f8a8082a875e7b536b1:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57483/sources/master#2bde39b8edce6463e1c37f8a8082a875e7b536b1/reg/kafka/0.7.0:/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=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" "+2bde39b8edce6463e1c37f8a8082a875e7b536b1-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 5fb555544f566a4c94ab9062d63d504dd15ae45d6a248c89754d0ade6442c14e
[INFO] running `"docker" "start" "-a" "5fb555544f566a4c94ab9062d63d504dd15ae45d6a248c89754d0ade6442c14e"`
[INFO] [stderr]     Checking twox-hash v1.1.2
[INFO] [stderr]     Checking kafka v0.7.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/compression/gzip.rs:14:8
[INFO] [stderr]    |
[INFO] [stderr] 14 |     Ok((compressed_bytes))
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/compression/gzip.rs:14:8
[INFO] [stderr]    |
[INFO] [stderr] 14 |     Ok((compressed_bytes))
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/consumer/mod.rs:225:13
[INFO] [stderr]     |
[INFO] [stderr] 225 |         let mut retry_partitions = &mut self.state.retry_partitions;
[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: variable does not need to be mutable
[INFO] [stderr]    --> src/consumer/mod.rs:225:13
[INFO] [stderr]     |
[INFO] [stderr] 225 |         let mut retry_partitions = &mut self.state.retry_partitions;
[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: use of deprecated item 'std::ascii::AsciiExt': use inherent methods instead
[INFO] [stderr]    --> examples/console-producer.rs:196:13
[INFO] [stderr]     |
[INFO] [stderr] 196 |         use std::ascii::AsciiExt;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ascii::AsciiExt`
[INFO] [stderr]    --> examples/console-producer.rs:196:13
[INFO] [stderr]     |
[INFO] [stderr] 196 |         use std::ascii::AsciiExt;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> examples/console-producer.rs:137:13
[INFO] [stderr]     |
[INFO] [stderr] 137 |         let mut rec = &mut rec_stash[next_rec];
[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: use of deprecated item 'std::ascii::AsciiExt': use inherent methods instead
[INFO] [stderr]   --> examples/console-consumer.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::ascii::AsciiExt;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ascii::AsciiExt`
[INFO] [stderr]   --> examples/console-consumer.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::ascii::AsciiExt;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'example::openssl::ssl::SslConnectorBuilder::builder_mut': SslConnectorBuilder now implements DerefMut<Target=SslContextBuilder>
[INFO] [stderr]   --> examples/example-ssl.rs:38:35
[INFO] [stderr]    |
[INFO] [stderr] 38 |             let mut ctx = builder.builder_mut();
[INFO] [stderr]    |                                   ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> examples/example-ssl.rs:38:17
[INFO] [stderr]    |
[INFO] [stderr] 38 |             let mut ctx = builder.builder_mut();
[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: use of deprecated item 'std::ascii::AsciiExt': use inherent methods instead
[INFO] [stderr]  --> examples/offset-monitor.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::ascii::AsciiExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ascii::AsciiExt`
[INFO] [stderr]  --> examples/offset-monitor.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::ascii::AsciiExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.02s
[INFO] running `"docker" "inspect" "5fb555544f566a4c94ab9062d63d504dd15ae45d6a248c89754d0ade6442c14e"`
[INFO] running `"docker" "rm" "-f" "5fb555544f566a4c94ab9062d63d504dd15ae45d6a248c89754d0ade6442c14e"`
[INFO] [stdout] 5fb555544f566a4c94ab9062d63d504dd15ae45d6a248c89754d0ade6442c14e