Dec 11 15:36:22.482 INFO checking kenpratt/jvm-assembler against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 15:36:22.483 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-4/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +3a75e80557a103497cffbcab395a2f37061a77ea-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 11 15:36:22.716 INFO [stdout] b24d2f11b6d04d53dec7f5144a96c2ac0d932024bf008d1fed0e13d6684602d7
Dec 11 15:36:22.717 INFO running `"docker" "start" "-a" "b24d2f11b6d04d53dec7f5144a96c2ac0d932024bf008d1fed0e13d6684602d7"`
Dec 11 15:36:23.528 INFO [stderr] usermod: no changes
Dec 11 15:36:23.616 INFO [stderr]     Checking jvm-assembler v0.0.1 (/source)
Dec 11 15:36:24.924 INFO [stderr] warning: variable does not need to be mutable
Dec 11 15:36:24.924 INFO [stderr]   --> src/serialization.rs:21:13
Dec 11 15:36:24.924 INFO [stderr]    |
Dec 11 15:36:24.924 INFO [stderr] 21 |         let mut buf = &mut Deserializer::new(Box::new(stream.bytes().map(|r| r.unwrap())));
Dec 11 15:36:24.924 INFO [stderr]    |             ----^^^
Dec 11 15:36:24.924 INFO [stderr]    |             |
Dec 11 15:36:24.924 INFO [stderr]    |             help: remove this `mut`
Dec 11 15:36:24.924 INFO [stderr]    |
Dec 11 15:36:24.924 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 11 15:36:24.924 INFO [stderr] 
Dec 11 15:36:24.948 INFO [stderr] warning: variable does not need to be mutable
Dec 11 15:36:24.948 INFO [stderr]    --> src/serialization.rs:279:13
Dec 11 15:36:24.948 INFO [stderr]     |
Dec 11 15:36:24.948 INFO [stderr] 279 |         let mut code_buf = &mut Deserializer::new(Box::new(code.into_iter()));
Dec 11 15:36:24.948 INFO [stderr]     |             ----^^^^^^^^
Dec 11 15:36:24.948 INFO [stderr]     |             |
Dec 11 15:36:24.948 INFO [stderr]     |             help: remove this `mut`
Dec 11 15:36:24.948 INFO [stderr] 
Dec 11 15:36:24.948 INFO [stderr] warning: variable does not need to be mutable
Dec 11 15:36:24.948 INFO [stderr]    --> src/serialization.rs:377:13
Dec 11 15:36:24.948 INFO [stderr]     |
Dec 11 15:36:24.948 INFO [stderr] 377 |         let mut attribute_name_index;
Dec 11 15:36:24.948 INFO [stderr]     |             ----^^^^^^^^^^^^^^^^^^^^
Dec 11 15:36:24.948 INFO [stderr]     |             |
Dec 11 15:36:24.948 INFO [stderr]     |             help: remove this `mut`
Dec 11 15:36:24.948 INFO [stderr] 
Dec 11 15:36:24.948 INFO [stderr] warning: variable does not need to be mutable
Dec 11 15:36:24.948 INFO [stderr]    --> src/serialization.rs:380:17
Dec 11 15:36:24.948 INFO [stderr]     |
Dec 11 15:36:24.948 INFO [stderr] 380 |             let mut body_buf = &mut attribute_body;
Dec 11 15:36:24.948 INFO [stderr]     |                 ----^^^^^^^^
Dec 11 15:36:24.948 INFO [stderr]     |                 |
Dec 11 15:36:24.948 INFO [stderr]     |                 help: remove this `mut`
Dec 11 15:36:24.948 INFO [stderr] 
Dec 11 15:36:24.956 INFO [stderr] warning: variable does not need to be mutable
Dec 11 15:36:24.956 INFO [stderr]    --> src/serialization.rs:416:13
Dec 11 15:36:24.956 INFO [stderr]     |
Dec 11 15:36:24.956 INFO [stderr] 416 |         let mut buf2 = &mut Deserializer::new(Box::new(attribute_body.into_iter()));
Dec 11 15:36:24.956 INFO [stderr]     |             ----^^^^
Dec 11 15:36:24.956 INFO [stderr]     |             |
Dec 11 15:36:24.956 INFO [stderr]     |             help: remove this `mut`
Dec 11 15:36:24.956 INFO [stderr] 
Dec 11 15:36:24.956 INFO [stderr] warning: variable does not need to be mutable
Dec 11 15:36:24.956 INFO [stderr]   --> src/serialization.rs:21:13
Dec 11 15:36:24.956 INFO [stderr]    |
Dec 11 15:36:24.956 INFO [stderr] 21 |         let mut buf = &mut Deserializer::new(Box::new(stream.bytes().map(|r| r.unwrap())));
Dec 11 15:36:24.956 INFO [stderr]    |             ----^^^
Dec 11 15:36:24.956 INFO [stderr]    |             |
Dec 11 15:36:24.956 INFO [stderr]    |             help: remove this `mut`
Dec 11 15:36:24.956 INFO [stderr]    |
Dec 11 15:36:24.956 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 11 15:36:24.956 INFO [stderr] 
Dec 11 15:36:24.984 INFO [stderr] warning: variable does not need to be mutable
Dec 11 15:36:24.984 INFO [stderr]    --> src/serialization.rs:279:13
Dec 11 15:36:24.984 INFO [stderr]     |
Dec 11 15:36:24.984 INFO [stderr] 279 |         let mut code_buf = &mut Deserializer::new(Box::new(code.into_iter()));
Dec 11 15:36:24.984 INFO [stderr]     |             ----^^^^^^^^
Dec 11 15:36:24.984 INFO [stderr]     |             |
Dec 11 15:36:24.984 INFO [stderr]     |             help: remove this `mut`
Dec 11 15:36:24.984 INFO [stderr] 
Dec 11 15:36:24.984 INFO [stderr] warning: variable does not need to be mutable
Dec 11 15:36:24.984 INFO [stderr]    --> src/serialization.rs:377:13
Dec 11 15:36:24.984 INFO [stderr]     |
Dec 11 15:36:24.984 INFO [stderr] 377 |         let mut attribute_name_index;
Dec 11 15:36:24.984 INFO [stderr]     |             ----^^^^^^^^^^^^^^^^^^^^
Dec 11 15:36:24.984 INFO [stderr]     |             |
Dec 11 15:36:24.984 INFO [stderr]     |             help: remove this `mut`
Dec 11 15:36:24.984 INFO [stderr] 
Dec 11 15:36:24.984 INFO [stderr] warning: variable does not need to be mutable
Dec 11 15:36:24.984 INFO [stderr]    --> src/serialization.rs:380:17
Dec 11 15:36:24.984 INFO [stderr]     |
Dec 11 15:36:24.984 INFO [stderr] 380 |             let mut body_buf = &mut attribute_body;
Dec 11 15:36:24.984 INFO [stderr]     |                 ----^^^^^^^^
Dec 11 15:36:24.984 INFO [stderr]     |                 |
Dec 11 15:36:24.984 INFO [stderr]     |                 help: remove this `mut`
Dec 11 15:36:24.985 INFO [stderr] 
Dec 11 15:36:24.992 INFO [stderr] warning: variable does not need to be mutable
Dec 11 15:36:24.992 INFO [stderr]    --> src/serialization.rs:416:13
Dec 11 15:36:24.992 INFO [stderr]     |
Dec 11 15:36:24.992 INFO [stderr] 416 |         let mut buf2 = &mut Deserializer::new(Box::new(attribute_body.into_iter()));
Dec 11 15:36:24.992 INFO [stderr]     |             ----^^^^
Dec 11 15:36:24.992 INFO [stderr]     |             |
Dec 11 15:36:24.992 INFO [stderr]     |             help: remove this `mut`
Dec 11 15:36:24.992 INFO [stderr] 
Dec 11 15:36:26.116 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.55s
Dec 11 15:36:26.124 INFO [stderr] su: No module specific data is present
Dec 11 15:36:26.702 INFO running `"docker" "inspect" "b24d2f11b6d04d53dec7f5144a96c2ac0d932024bf008d1fed0e13d6684602d7"`
Dec 11 15:36:26.900 INFO running `"docker" "rm" "-f" "b24d2f11b6d04d53dec7f5144a96c2ac0d932024bf008d1fed0e13d6684602d7"`
Dec 11 15:36:27.125 INFO [stdout] b24d2f11b6d04d53dec7f5144a96c2ac0d932024bf008d1fed0e13d6684602d7