[INFO] cloning repository https://github.com/1wilkens/rs-gzip
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/1wilkens/rs-gzip" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F1wilkens%2Frs-gzip"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F1wilkens%2Frs-gzip'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 718f27eea62e931abe46d919757616d2882aa9c7
[INFO] checking 1wilkens/rs-gzip against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F1wilkens%2Frs-gzip" "/workspace/builds/worker-9/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/1wilkens/rs-gzip on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/1wilkens/rs-gzip
[INFO] finished tweaking git repo https://github.com/1wilkens/rs-gzip
[INFO] tweaked toml for git repo https://github.com/1wilkens/rs-gzip written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/1wilkens/rs-gzip already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /workspace/builds/worker-9/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 11a4b8aa209d80c4dafe0bc0f9d57132e8b30b1b3f023c54ba55befd8b3ff76d
[INFO] running `"docker" "start" "-a" "11a4b8aa209d80c4dafe0bc0f9d57132e8b30b1b3f023c54ba55befd8b3ff76d"`
[INFO] [stderr]     Checking bitio v0.0.4
[INFO] [stderr]     Checking rs-gzip v0.0.5 (/opt/rustwide/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 1.50s
[INFO] running `"docker" "inspect" "11a4b8aa209d80c4dafe0bc0f9d57132e8b30b1b3f023c54ba55befd8b3ff76d"`
[INFO] running `"docker" "rm" "-f" "11a4b8aa209d80c4dafe0bc0f9d57132e8b30b1b3f023c54ba55befd8b3ff76d"`
[INFO] [stdout] 11a4b8aa209d80c4dafe0bc0f9d57132e8b30b1b3f023c54ba55befd8b3ff76d