Dec 04 10:55:52.040 INFO checking saarw/cstruct2rs against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 10:55:52.040 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-7/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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 04 10:55:52.596 INFO [stdout] 015c41b00980fba256a3ae2ba609cce70bee8e57fd3f20ee12731c27bc58a376
Dec 04 10:55:52.597 INFO running `"docker" "start" "-a" "015c41b00980fba256a3ae2ba609cce70bee8e57fd3f20ee12731c27bc58a376"`
Dec 04 10:55:53.934 INFO [stderr] usermod: no changes
Dec 04 10:55:54.031 INFO [stderr]     Checking cstruct2rs v0.0.1 (/source)
Dec 04 10:55:54.647 INFO [stderr] warning: variable does not need to be mutable
Dec 04 10:55:54.647 INFO [stderr]   --> src/cinfo.rs:90:6
Dec 04 10:55:54.647 INFO [stderr]    |
Dec 04 10:55:54.647 INFO [stderr] 90 |     let mut name_buf: Cow<String>;
Dec 04 10:55:54.647 INFO [stderr]    |         ----^^^^^^^^
Dec 04 10:55:54.647 INFO [stderr]    |         |
Dec 04 10:55:54.647 INFO [stderr]    |         help: remove this `mut`
Dec 04 10:55:54.647 INFO [stderr]    |
Dec 04 10:55:54.647 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 10:55:54.647 INFO [stderr] 
Dec 04 10:55:54.647 INFO [stderr] warning: variable does not need to be mutable
Dec 04 10:55:54.647 INFO [stderr]   --> src/cinfo.rs:91:6
Dec 04 10:55:54.647 INFO [stderr]    |
Dec 04 10:55:54.647 INFO [stderr] 91 |     let mut var_name: Cow<str>;    
Dec 04 10:55:54.647 INFO [stderr]    |         ----^^^^^^^^
Dec 04 10:55:54.647 INFO [stderr]    |         |
Dec 04 10:55:54.647 INFO [stderr]    |         help: remove this `mut`
Dec 04 10:55:54.647 INFO [stderr] 
Dec 04 10:55:54.769 INFO [stderr] warning: variable does not need to be mutable
Dec 04 10:55:54.769 INFO [stderr]   --> src/cinfo.rs:90:6
Dec 04 10:55:54.770 INFO [stderr]    |
Dec 04 10:55:54.770 INFO [stderr] 90 |     let mut name_buf: Cow<String>;
Dec 04 10:55:54.770 INFO [stderr]    |         ----^^^^^^^^
Dec 04 10:55:54.770 INFO [stderr]    |         |
Dec 04 10:55:54.770 INFO [stderr]    |         help: remove this `mut`
Dec 04 10:55:54.770 INFO [stderr]    |
Dec 04 10:55:54.770 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 10:55:54.770 INFO [stderr] 
Dec 04 10:55:54.770 INFO [stderr] warning: variable does not need to be mutable
Dec 04 10:55:54.770 INFO [stderr]   --> src/cinfo.rs:91:6
Dec 04 10:55:54.770 INFO [stderr]    |
Dec 04 10:55:54.770 INFO [stderr] 91 |     let mut var_name: Cow<str>;    
Dec 04 10:55:54.770 INFO [stderr]    |         ----^^^^^^^^
Dec 04 10:55:54.770 INFO [stderr]    |         |
Dec 04 10:55:54.770 INFO [stderr]    |         help: remove this `mut`
Dec 04 10:55:54.770 INFO [stderr] 
Dec 04 10:55:54.821 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.85s
Dec 04 10:55:54.823 INFO [stderr] su: No module specific data is present
Dec 04 10:55:56.363 INFO running `"docker" "inspect" "015c41b00980fba256a3ae2ba609cce70bee8e57fd3f20ee12731c27bc58a376"`
Dec 04 10:55:56.673 INFO running `"docker" "rm" "-f" "015c41b00980fba256a3ae2ba609cce70bee8e57fd3f20ee12731c27bc58a376"`
Dec 04 10:55:57.111 INFO [stdout] 015c41b00980fba256a3ae2ba609cce70bee8e57fd3f20ee12731c27bc58a376