Dec 19 14:27:42.797 INFO checking kenpratt/jvm-assembler against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 14:27:42.797 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-6/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/kenpratt/jvm-assembler:/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 14:27:42.983 INFO [stdout] 5ce4eb0ca69d0d56c58f1e31f03c2ef86030ec2ca8e6aeb058c3b93e858bbab2
Dec 19 14:27:42.986 INFO running `"docker" "start" "-a" "5ce4eb0ca69d0d56c58f1e31f03c2ef86030ec2ca8e6aeb058c3b93e858bbab2"`
Dec 19 14:27:43.644 INFO [stderr]     Checking jvm-assembler v0.0.1 (/opt/crater/workdir)
Dec 19 14:27:44.384 INFO [stderr] warning: variable does not need to be mutable
Dec 19 14:27:44.384 INFO [stderr]   --> src/serialization.rs:21:13
Dec 19 14:27:44.384 INFO [stderr]    |
Dec 19 14:27:44.384 INFO [stderr] 21 |         let mut buf = &mut Deserializer::new(Box::new(stream.bytes().map(|r| r.unwrap())));
Dec 19 14:27:44.384 INFO [stderr]    |             ----^^^
Dec 19 14:27:44.384 INFO [stderr]    |             |
Dec 19 14:27:44.384 INFO [stderr]    |             help: remove this `mut`
Dec 19 14:27:44.384 INFO [stderr]    |
Dec 19 14:27:44.384 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 14:27:44.384 INFO [stderr] 
Dec 19 14:27:44.404 INFO [stderr] warning: variable does not need to be mutable
Dec 19 14:27:44.404 INFO [stderr]    --> src/serialization.rs:279:13
Dec 19 14:27:44.404 INFO [stderr]     |
Dec 19 14:27:44.404 INFO [stderr] 279 |         let mut code_buf = &mut Deserializer::new(Box::new(code.into_iter()));
Dec 19 14:27:44.404 INFO [stderr]     |             ----^^^^^^^^
Dec 19 14:27:44.404 INFO [stderr]     |             |
Dec 19 14:27:44.404 INFO [stderr]     |             help: remove this `mut`
Dec 19 14:27:44.404 INFO [stderr] 
Dec 19 14:27:44.413 INFO [stderr] warning: variable does not need to be mutable
Dec 19 14:27:44.413 INFO [stderr]    --> src/serialization.rs:377:13
Dec 19 14:27:44.413 INFO [stderr]     |
Dec 19 14:27:44.413 INFO [stderr] 377 |         let mut attribute_name_index;
Dec 19 14:27:44.413 INFO [stderr]     |             ----^^^^^^^^^^^^^^^^^^^^
Dec 19 14:27:44.413 INFO [stderr]     |             |
Dec 19 14:27:44.413 INFO [stderr]     |             help: remove this `mut`
Dec 19 14:27:44.413 INFO [stderr] 
Dec 19 14:27:44.413 INFO [stderr] warning: variable does not need to be mutable
Dec 19 14:27:44.413 INFO [stderr]    --> src/serialization.rs:380:17
Dec 19 14:27:44.413 INFO [stderr]     |
Dec 19 14:27:44.413 INFO [stderr] 380 |             let mut body_buf = &mut attribute_body;
Dec 19 14:27:44.413 INFO [stderr]     |                 ----^^^^^^^^
Dec 19 14:27:44.413 INFO [stderr]     |                 |
Dec 19 14:27:44.413 INFO [stderr]     |                 help: remove this `mut`
Dec 19 14:27:44.413 INFO [stderr] 
Dec 19 14:27:44.413 INFO [stderr] warning: variable does not need to be mutable
Dec 19 14:27:44.413 INFO [stderr]    --> src/serialization.rs:416:13
Dec 19 14:27:44.413 INFO [stderr]     |
Dec 19 14:27:44.413 INFO [stderr] 416 |         let mut buf2 = &mut Deserializer::new(Box::new(attribute_body.into_iter()));
Dec 19 14:27:44.413 INFO [stderr]     |             ----^^^^
Dec 19 14:27:44.413 INFO [stderr]     |             |
Dec 19 14:27:44.413 INFO [stderr]     |             help: remove this `mut`
Dec 19 14:27:44.413 INFO [stderr] 
Dec 19 14:27:44.552 INFO [stderr] warning: variable does not need to be mutable
Dec 19 14:27:44.552 INFO [stderr]   --> src/serialization.rs:21:13
Dec 19 14:27:44.552 INFO [stderr]    |
Dec 19 14:27:44.552 INFO [stderr] 21 |         let mut buf = &mut Deserializer::new(Box::new(stream.bytes().map(|r| r.unwrap())));
Dec 19 14:27:44.552 INFO [stderr]    |             ----^^^
Dec 19 14:27:44.552 INFO [stderr]    |             |
Dec 19 14:27:44.552 INFO [stderr]    |             help: remove this `mut`
Dec 19 14:27:44.552 INFO [stderr]    |
Dec 19 14:27:44.552 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 14:27:44.552 INFO [stderr] 
Dec 19 14:27:44.588 INFO [stderr] warning: variable does not need to be mutable
Dec 19 14:27:44.588 INFO [stderr]    --> src/serialization.rs:279:13
Dec 19 14:27:44.588 INFO [stderr]     |
Dec 19 14:27:44.588 INFO [stderr] 279 |         let mut code_buf = &mut Deserializer::new(Box::new(code.into_iter()));
Dec 19 14:27:44.588 INFO [stderr]     |             ----^^^^^^^^
Dec 19 14:27:44.588 INFO [stderr]     |             |
Dec 19 14:27:44.588 INFO [stderr]     |             help: remove this `mut`
Dec 19 14:27:44.588 INFO [stderr] 
Dec 19 14:27:44.596 INFO [stderr] warning: variable does not need to be mutable
Dec 19 14:27:44.596 INFO [stderr]    --> src/serialization.rs:377:13
Dec 19 14:27:44.596 INFO [stderr]     |
Dec 19 14:27:44.596 INFO [stderr] 377 |         let mut attribute_name_index;
Dec 19 14:27:44.596 INFO [stderr]     |             ----^^^^^^^^^^^^^^^^^^^^
Dec 19 14:27:44.596 INFO [stderr]     |             |
Dec 19 14:27:44.596 INFO [stderr]     |             help: remove this `mut`
Dec 19 14:27:44.596 INFO [stderr] 
Dec 19 14:27:44.596 INFO [stderr] warning: variable does not need to be mutable
Dec 19 14:27:44.596 INFO [stderr]    --> src/serialization.rs:380:17
Dec 19 14:27:44.596 INFO [stderr]     |
Dec 19 14:27:44.596 INFO [stderr] 380 |             let mut body_buf = &mut attribute_body;
Dec 19 14:27:44.596 INFO [stderr]     |                 ----^^^^^^^^
Dec 19 14:27:44.596 INFO [stderr]     |                 |
Dec 19 14:27:44.596 INFO [stderr]     |                 help: remove this `mut`
Dec 19 14:27:44.596 INFO [stderr] 
Dec 19 14:27:44.596 INFO [stderr] warning: variable does not need to be mutable
Dec 19 14:27:44.596 INFO [stderr]    --> src/serialization.rs:416:13
Dec 19 14:27:44.596 INFO [stderr]     |
Dec 19 14:27:44.596 INFO [stderr] 416 |         let mut buf2 = &mut Deserializer::new(Box::new(attribute_body.into_iter()));
Dec 19 14:27:44.597 INFO [stderr]     |             ----^^^^
Dec 19 14:27:44.597 INFO [stderr]     |             |
Dec 19 14:27:44.597 INFO [stderr]     |             help: remove this `mut`
Dec 19 14:27:44.597 INFO [stderr] 
Dec 19 14:27:45.568 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.94s
Dec 19 14:27:45.889 INFO running `"docker" "inspect" "5ce4eb0ca69d0d56c58f1e31f03c2ef86030ec2ca8e6aeb058c3b93e858bbab2"`
Dec 19 14:27:46.094 INFO running `"docker" "rm" "-f" "5ce4eb0ca69d0d56c58f1e31f03c2ef86030ec2ca8e6aeb058c3b93e858bbab2"`
Dec 19 14:27:46.255 INFO [stdout] 5ce4eb0ca69d0d56c58f1e31f03c2ef86030ec2ca8e6aeb058c3b93e858bbab2