Nov 30 19:31:18.755 INFO checking mhash-0.3.0 against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 30 19:31:18.756 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-1/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/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 +32252761328f59ccfadb1bafb8148c685bc830b3-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"`
Nov 30 19:31:19.140 INFO [stdout] c0069414ff12bc0d439801e38496bb3e0987117af6b83ffdc8ad5e225caf9aa1
Nov 30 19:31:19.148 INFO running `"docker" "start" "-a" "c0069414ff12bc0d439801e38496bb3e0987117af6b83ffdc8ad5e225caf9aa1"`
Nov 30 19:31:20.347 INFO [stderr] usermod: no changes
Nov 30 19:31:20.486 INFO [stderr]     Checking varmint v0.1.3
Nov 30 19:31:21.212 INFO [stderr]     Checking mhash v0.3.0 (/source)
Nov 30 19:31:21.284 INFO [stderr] warning: lint `fat_ptr_transmutes` has been removed: `was accidentally removed back in 2014`
Nov 30 19:31:21.284 INFO [stderr]  --> src/lib.rs:4:9
Nov 30 19:31:21.284 INFO [stderr]   |
Nov 30 19:31:21.284 INFO [stderr] 4 | #![warn(fat_ptr_transmutes)]
Nov 30 19:31:21.284 INFO [stderr]   |         ^^^^^^^^^^^^^^^^^^
Nov 30 19:31:21.284 INFO [stderr]   |
Nov 30 19:31:21.284 INFO [stderr]   = note: #[warn(renamed_and_removed_lints)] on by default
Nov 30 19:31:21.284 INFO [stderr] 
Nov 30 19:31:21.296 INFO [stderr] warning: lint `fat_ptr_transmutes` has been removed: `was accidentally removed back in 2014`
Nov 30 19:31:21.296 INFO [stderr]  --> src/lib.rs:4:9
Nov 30 19:31:21.296 INFO [stderr]   |
Nov 30 19:31:21.296 INFO [stderr] 4 | #![warn(fat_ptr_transmutes)]
Nov 30 19:31:21.296 INFO [stderr]   |         ^^^^^^^^^^^^^^^^^^
Nov 30 19:31:21.296 INFO [stderr]   |
Nov 30 19:31:21.296 INFO [stderr]   = note: #[warn(renamed_and_removed_lints)] on by default
Nov 30 19:31:21.296 INFO [stderr] 
Nov 30 19:31:22.904 INFO [stderr] warning: variable does not need to be mutable
Nov 30 19:31:22.904 INFO [stderr]   --> src/multihash_vec.rs:23:17
Nov 30 19:31:22.904 INFO [stderr]    |
Nov 30 19:31:22.904 INFO [stderr] 23 |             let mut writer = &mut bytes;
Nov 30 19:31:22.904 INFO [stderr]    |                 ----^^^^^^
Nov 30 19:31:22.904 INFO [stderr]    |                 |
Nov 30 19:31:22.904 INFO [stderr]    |                 help: remove this `mut`
Nov 30 19:31:22.904 INFO [stderr]    |
Nov 30 19:31:22.904 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 30 19:31:22.904 INFO [stderr] 
Nov 30 19:31:23.116 INFO [stderr] warning: variable does not need to be mutable
Nov 30 19:31:23.116 INFO [stderr]   --> src/multihash_vec.rs:23:17
Nov 30 19:31:23.116 INFO [stderr]    |
Nov 30 19:31:23.116 INFO [stderr] 23 |             let mut writer = &mut bytes;
Nov 30 19:31:23.116 INFO [stderr]    |                 ----^^^^^^
Nov 30 19:31:23.116 INFO [stderr]    |                 |
Nov 30 19:31:23.116 INFO [stderr]    |                 help: remove this `mut`
Nov 30 19:31:23.116 INFO [stderr]    |
Nov 30 19:31:23.116 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 30 19:31:23.116 INFO [stderr] 
Nov 30 19:31:23.168 INFO [stderr] warning: unused result
Nov 30 19:31:23.168 INFO [stderr]   --> src/read.rs:83:9
Nov 30 19:31:23.168 INFO [stderr]    |
Nov 30 19:31:23.168 INFO [stderr] 83 |         buffer.read_multihash().is_err();
Nov 30 19:31:23.168 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 19:31:23.168 INFO [stderr]    |
Nov 30 19:31:23.168 INFO [stderr] note: lint level defined here
Nov 30 19:31:23.168 INFO [stderr]   --> src/lib.rs:11:9
Nov 30 19:31:23.168 INFO [stderr]    |
Nov 30 19:31:23.168 INFO [stderr] 11 | #![warn(unused_results)]
Nov 30 19:31:23.168 INFO [stderr]    |         ^^^^^^^^^^^^^^
Nov 30 19:31:23.168 INFO [stderr] 
Nov 30 19:31:23.168 INFO [stderr] warning: unused result
Nov 30 19:31:23.168 INFO [stderr]   --> src/read.rs:89:9
Nov 30 19:31:23.168 INFO [stderr]    |
Nov 30 19:31:23.168 INFO [stderr] 89 |         buffer.read_multihash().is_err();
Nov 30 19:31:23.169 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 19:31:23.169 INFO [stderr] 
Nov 30 19:31:23.169 INFO [stderr] warning: unused result
Nov 30 19:31:23.169 INFO [stderr]   --> src/read.rs:95:9
Nov 30 19:31:23.169 INFO [stderr]    |
Nov 30 19:31:23.169 INFO [stderr] 95 |         buffer.read_multihash().is_err();
Nov 30 19:31:23.169 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 19:31:23.169 INFO [stderr] 
Nov 30 19:31:23.169 INFO [stderr] warning: unused result
Nov 30 19:31:23.169 INFO [stderr]    --> src/read.rs:101:9
Nov 30 19:31:23.169 INFO [stderr]     |
Nov 30 19:31:23.169 INFO [stderr] 101 |         buffer.read_multihash().is_err();
Nov 30 19:31:23.169 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 19:31:23.169 INFO [stderr] 
Nov 30 19:31:23.169 INFO [stderr] warning: unused result
Nov 30 19:31:23.169 INFO [stderr]    --> src/read.rs:113:9
Nov 30 19:31:23.169 INFO [stderr]     |
Nov 30 19:31:23.169 INFO [stderr] 113 |         buffer.read_multihash().is_err();
Nov 30 19:31:23.169 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 19:31:23.169 INFO [stderr] 
Nov 30 19:31:23.205 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.83s
Nov 30 19:31:23.209 INFO [stderr] su: No module specific data is present
Nov 30 19:31:24.077 INFO running `"docker" "inspect" "c0069414ff12bc0d439801e38496bb3e0987117af6b83ffdc8ad5e225caf9aa1"`
Nov 30 19:31:24.376 INFO running `"docker" "rm" "-f" "c0069414ff12bc0d439801e38496bb3e0987117af6b83ffdc8ad5e225caf9aa1"`
Nov 30 19:31:24.683 INFO [stdout] c0069414ff12bc0d439801e38496bb3e0987117af6b83ffdc8ad5e225caf9aa1