[INFO] updating cached repository 1wilkens/rs-gzip
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/1wilkens/rs-gzip
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/1wilkens/rs-gzip" "work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/1wilkens/rs-gzip"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/1wilkens/rs-gzip'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/1wilkens/rs-gzip" "work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/1wilkens/rs-gzip"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/1wilkens/rs-gzip'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 718f27eea62e931abe46d919757616d2882aa9c7
[INFO] sha for GitHub repo 1wilkens/rs-gzip: 718f27eea62e931abe46d919757616d2882aa9c7
[INFO] validating manifest of 1wilkens/rs-gzip on toolchain master#0f88167f89fffe321590c5148f21b7d51d44388d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of 1wilkens/rs-gzip on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing 1wilkens/rs-gzip
[INFO] finished frobbing 1wilkens/rs-gzip
[INFO] frobbed toml for 1wilkens/rs-gzip written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/1wilkens/rs-gzip/Cargo.toml
[INFO] started frobbing 1wilkens/rs-gzip
[INFO] finished frobbing 1wilkens/rs-gzip
[INFO] frobbed toml for 1wilkens/rs-gzip written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/1wilkens/rs-gzip/Cargo.toml
[INFO] crate 1wilkens/rs-gzip already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/1wilkens/rs-gzip/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bitio v0.0.4
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on the registry index
[INFO] checking 1wilkens/rs-gzip against try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b for pr-58948
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-4/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/1wilkens/rs-gzip:/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" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 7a5e90db85c462b032cd359885fbeba86afb44b9173636be53bc46af3d238c69
[INFO] running `"docker" "start" "-a" "7a5e90db85c462b032cd359885fbeba86afb44b9173636be53bc46af3d238c69"`
[INFO] [stderr]     Checking bitio v0.0.4
[INFO] [stderr]     Checking rs-gzip v0.0.5 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `bit_reader`
[INFO] [stderr]   --> src/gzip.rs:77:10
[INFO] [stderr]    |
[INFO] [stderr] 77 |     let mut bit_reader = BitReader::new(reader);
[INFO] [stderr]    |             ^^^^^^^^^^ help: consider prefixing with an underscore: `_bit_reader`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `verbose`
[INFO] [stderr]   --> src/gzip.rs:76:41
[INFO] [stderr]    |
[INFO] [stderr] 76 | pub fn compress<R: io::Read>(reader: R, verbose: bool) {
[INFO] [stderr]    |                                         ^^^^^^^ help: consider prefixing with an underscore: `_verbose`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/gzip.rs:77:6
[INFO] [stderr]    |
[INFO] [stderr] 77 |     let mut bit_reader = BitReader::new(reader);
[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: unused variable: `bit_reader`
[INFO] [stderr]   --> src/gzip.rs:77:10
[INFO] [stderr]    |
[INFO] [stderr] 77 |     let mut bit_reader = BitReader::new(reader);
[INFO] [stderr]    |             ^^^^^^^^^^ help: consider prefixing with an underscore: `_bit_reader`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `verbose`
[INFO] [stderr]   --> src/gzip.rs:76:41
[INFO] [stderr]    |
[INFO] [stderr] 76 | pub fn compress<R: io::Read>(reader: R, verbose: bool) {
[INFO] [stderr]    |                                         ^^^^^^^ help: consider prefixing with an underscore: `_verbose`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `meta_data`
[INFO] [stderr]   --> src/gzip.rs:20:2
[INFO] [stderr]    |
[INFO] [stderr] 20 |     meta_data:  MemberMetaData,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `content`
[INFO] [stderr]   --> src/gzip.rs:21:2
[INFO] [stderr]    |
[INFO] [stderr] 21 |     content:    Vec<u8>
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `content`
[INFO] [stderr]   --> src/gzip.rs:45:2
[INFO] [stderr]    |
[INFO] [stderr] 45 |     content: Vec<u8>
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `is_last_block`
[INFO] [stderr]   --> src/gzip.rs:49:2
[INFO] [stderr]    |
[INFO] [stderr] 49 |     is_last_block: bool,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/gzip.rs:77:6
[INFO] [stderr]    |
[INFO] [stderr] 77 |     let mut bit_reader = BitReader::new(reader);
[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: field is never used: `meta_data`
[INFO] [stderr]   --> src/gzip.rs:20:2
[INFO] [stderr]    |
[INFO] [stderr] 20 |     meta_data:  MemberMetaData,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `content`
[INFO] [stderr]   --> src/gzip.rs:21:2
[INFO] [stderr]    |
[INFO] [stderr] 21 |     content:    Vec<u8>
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `content`
[INFO] [stderr]   --> src/gzip.rs:45:2
[INFO] [stderr]    |
[INFO] [stderr] 45 |     content: Vec<u8>
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `is_last_block`
[INFO] [stderr]   --> src/gzip.rs:49:2
[INFO] [stderr]    |
[INFO] [stderr] 49 |     is_last_block: bool,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `"docker" "inspect" "7a5e90db85c462b032cd359885fbeba86afb44b9173636be53bc46af3d238c69"`
[INFO] running `"docker" "rm" "-f" "7a5e90db85c462b032cd359885fbeba86afb44b9173636be53bc46af3d238c69"`
[INFO] [stdout] 7a5e90db85c462b032cd359885fbeba86afb44b9173636be53bc46af3d238c69