Dec 18 14:01:35.435 INFO checking mhash-0.3.0 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 14:01:35.435 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/mhash/0.3.0:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 14:01:35.607 INFO [stdout] 5bb4a6c0c05b8cdbf5954bd41d24e7cee26356c2546471eb88647cf2cd617769
Dec 18 14:01:35.609 INFO running `"docker" "start" "-a" "5bb4a6c0c05b8cdbf5954bd41d24e7cee26356c2546471eb88647cf2cd617769"`
Dec 18 14:01:36.573 INFO [stderr]     Checking varmint v0.1.3
Dec 18 14:01:36.959 INFO [stderr]     Checking mhash v0.3.0 (/opt/crater/workdir)
Dec 18 14:01:37.060 INFO [stderr] warning: lint `fat_ptr_transmutes` has been removed: `was accidentally removed back in 2014`
Dec 18 14:01:37.060 INFO [stderr]  --> src/lib.rs:4:9
Dec 18 14:01:37.060 INFO [stderr]   |
Dec 18 14:01:37.060 INFO [stderr] 4 | #![warn(fat_ptr_transmutes)]
Dec 18 14:01:37.060 INFO [stderr]   |         ^^^^^^^^^^^^^^^^^^
Dec 18 14:01:37.060 INFO [stderr]   |
Dec 18 14:01:37.060 INFO [stderr]   = note: #[warn(renamed_and_removed_lints)] on by default
Dec 18 14:01:37.060 INFO [stderr] 
Dec 18 14:01:37.192 INFO [stderr] warning: lint `fat_ptr_transmutes` has been removed: `was accidentally removed back in 2014`
Dec 18 14:01:37.193 INFO [stderr]  --> src/lib.rs:4:9
Dec 18 14:01:37.193 INFO [stderr]   |
Dec 18 14:01:37.193 INFO [stderr] 4 | #![warn(fat_ptr_transmutes)]
Dec 18 14:01:37.193 INFO [stderr]   |         ^^^^^^^^^^^^^^^^^^
Dec 18 14:01:37.193 INFO [stderr]   |
Dec 18 14:01:37.193 INFO [stderr]   = note: #[warn(renamed_and_removed_lints)] on by default
Dec 18 14:01:37.193 INFO [stderr] 
Dec 18 14:01:37.592 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 18 14:01:37.592 INFO [stderr]   --> src/error.rs:29:5
Dec 18 14:01:37.592 INFO [stderr]    |
Dec 18 14:01:37.592 INFO [stderr] 29 | /     error_chain! {
Dec 18 14:01:37.592 INFO [stderr] 30 | |         links {
Dec 18 14:01:37.592 INFO [stderr] 31 | |             creation::Error, creation::ErrorKind, Creation;
Dec 18 14:01:37.592 INFO [stderr] 32 | |         }
Dec 18 14:01:37.592 INFO [stderr] ...  |
Dec 18 14:01:37.592 INFO [stderr] 45 | |         }
Dec 18 14:01:37.592 INFO [stderr] 46 | |     }
Dec 18 14:01:37.592 INFO [stderr]    | |_____^
Dec 18 14:01:37.592 INFO [stderr]    |
Dec 18 14:01:37.592 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 18 14:01:37.592 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 18 14:01:37.592 INFO [stderr] 
Dec 18 14:01:37.592 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 18 14:01:37.592 INFO [stderr]   --> src/error.rs:54:5
Dec 18 14:01:37.592 INFO [stderr]    |
Dec 18 14:01:37.592 INFO [stderr] 54 | /     error_chain! {
Dec 18 14:01:37.592 INFO [stderr] 55 | |         links {
Dec 18 14:01:37.592 INFO [stderr] 56 | |             from_bytes::Error, from_bytes::ErrorKind, FromBytes;
Dec 18 14:01:37.592 INFO [stderr] 57 | |         }
Dec 18 14:01:37.592 INFO [stderr] ...  |
Dec 18 14:01:37.592 INFO [stderr] 61 | |         }
Dec 18 14:01:37.592 INFO [stderr] 62 | |     }
Dec 18 14:01:37.592 INFO [stderr]    | |_____^
Dec 18 14:01:37.592 INFO [stderr]    |
Dec 18 14:01:37.592 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 18 14:01:37.596 INFO [stderr] 
Dec 18 14:01:37.728 INFO [stderr] warning: variable does not need to be mutable
Dec 18 14:01:37.728 INFO [stderr]   --> src/multihash_vec.rs:23:17
Dec 18 14:01:37.728 INFO [stderr]    |
Dec 18 14:01:37.728 INFO [stderr] 23 |             let mut writer = &mut bytes;
Dec 18 14:01:37.728 INFO [stderr]    |                 ----^^^^^^
Dec 18 14:01:37.728 INFO [stderr]    |                 |
Dec 18 14:01:37.728 INFO [stderr]    |                 help: remove this `mut`
Dec 18 14:01:37.728 INFO [stderr]    |
Dec 18 14:01:37.740 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 14:01:37.740 INFO [stderr] 
Dec 18 14:01:37.808 INFO [stderr] warning: unused result
Dec 18 14:01:37.808 INFO [stderr]   --> src/read.rs:83:9
Dec 18 14:01:37.808 INFO [stderr]    |
Dec 18 14:01:37.808 INFO [stderr] 83 |         buffer.read_multihash().is_err();
Dec 18 14:01:37.808 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 14:01:37.809 INFO [stderr]    |
Dec 18 14:01:37.809 INFO [stderr] note: lint level defined here
Dec 18 14:01:37.809 INFO [stderr]   --> src/lib.rs:11:9
Dec 18 14:01:37.809 INFO [stderr]    |
Dec 18 14:01:37.809 INFO [stderr] 11 | #![warn(unused_results)]
Dec 18 14:01:37.809 INFO [stderr]    |         ^^^^^^^^^^^^^^
Dec 18 14:01:37.809 INFO [stderr] 
Dec 18 14:01:37.809 INFO [stderr] warning: unused result
Dec 18 14:01:37.809 INFO [stderr]   --> src/read.rs:89:9
Dec 18 14:01:37.809 INFO [stderr]    |
Dec 18 14:01:37.809 INFO [stderr] 89 |         buffer.read_multihash().is_err();
Dec 18 14:01:37.809 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 14:01:37.810 INFO [stderr] 
Dec 18 14:01:37.810 INFO [stderr] warning: unused result
Dec 18 14:01:37.810 INFO [stderr]   --> src/read.rs:95:9
Dec 18 14:01:37.810 INFO [stderr]    |
Dec 18 14:01:37.810 INFO [stderr] 95 |         buffer.read_multihash().is_err();
Dec 18 14:01:37.810 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 14:01:37.810 INFO [stderr] 
Dec 18 14:01:37.813 INFO [stderr] warning: unused result
Dec 18 14:01:37.813 INFO [stderr]    --> src/read.rs:101:9
Dec 18 14:01:37.813 INFO [stderr]     |
Dec 18 14:01:37.813 INFO [stderr] 101 |         buffer.read_multihash().is_err();
Dec 18 14:01:37.813 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 14:01:37.813 INFO [stderr] 
Dec 18 14:01:37.813 INFO [stderr] warning: unused result
Dec 18 14:01:37.813 INFO [stderr]    --> src/read.rs:113:9
Dec 18 14:01:37.813 INFO [stderr]     |
Dec 18 14:01:37.813 INFO [stderr] 113 |         buffer.read_multihash().is_err();
Dec 18 14:01:37.813 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 14:01:37.813 INFO [stderr] 
Dec 18 14:01:37.983 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 18 14:01:37.983 INFO [stderr]   --> src/error.rs:29:5
Dec 18 14:01:37.983 INFO [stderr]    |
Dec 18 14:01:37.983 INFO [stderr] 29 | /     error_chain! {
Dec 18 14:01:37.983 INFO [stderr] 30 | |         links {
Dec 18 14:01:37.983 INFO [stderr] 31 | |             creation::Error, creation::ErrorKind, Creation;
Dec 18 14:01:37.983 INFO [stderr] 32 | |         }
Dec 18 14:01:37.983 INFO [stderr] ...  |
Dec 18 14:01:37.983 INFO [stderr] 45 | |         }
Dec 18 14:01:37.983 INFO [stderr] 46 | |     }
Dec 18 14:01:37.983 INFO [stderr]    | |_____^
Dec 18 14:01:37.983 INFO [stderr]    |
Dec 18 14:01:37.983 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 18 14:01:37.983 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 18 14:01:37.983 INFO [stderr] 
Dec 18 14:01:37.984 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 18 14:01:37.984 INFO [stderr]   --> src/error.rs:54:5
Dec 18 14:01:37.984 INFO [stderr]    |
Dec 18 14:01:37.984 INFO [stderr] 54 | /     error_chain! {
Dec 18 14:01:37.984 INFO [stderr] 55 | |         links {
Dec 18 14:01:37.984 INFO [stderr] 56 | |             from_bytes::Error, from_bytes::ErrorKind, FromBytes;
Dec 18 14:01:37.984 INFO [stderr] 57 | |         }
Dec 18 14:01:37.984 INFO [stderr] ...  |
Dec 18 14:01:37.984 INFO [stderr] 61 | |         }
Dec 18 14:01:37.984 INFO [stderr] 62 | |     }
Dec 18 14:01:37.984 INFO [stderr]    | |_____^
Dec 18 14:01:37.984 INFO [stderr]    |
Dec 18 14:01:37.984 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 18 14:01:37.984 INFO [stderr] 
Dec 18 14:01:38.054 INFO [stderr] warning: variable does not need to be mutable
Dec 18 14:01:38.054 INFO [stderr]   --> src/multihash_vec.rs:23:17
Dec 18 14:01:38.054 INFO [stderr]    |
Dec 18 14:01:38.054 INFO [stderr] 23 |             let mut writer = &mut bytes;
Dec 18 14:01:38.054 INFO [stderr]    |                 ----^^^^^^
Dec 18 14:01:38.054 INFO [stderr]    |                 |
Dec 18 14:01:38.055 INFO [stderr]    |                 help: remove this `mut`
Dec 18 14:01:38.055 INFO [stderr]    |
Dec 18 14:01:38.055 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 14:01:38.055 INFO [stderr] 
Dec 18 14:01:38.148 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.63s
Dec 18 14:01:39.219 INFO running `"docker" "inspect" "5bb4a6c0c05b8cdbf5954bd41d24e7cee26356c2546471eb88647cf2cd617769"`
Dec 18 14:01:39.538 INFO running `"docker" "rm" "-f" "5bb4a6c0c05b8cdbf5954bd41d24e7cee26356c2546471eb88647cf2cd617769"`
Dec 18 14:01:39.696 INFO [stdout] 5bb4a6c0c05b8cdbf5954bd41d24e7cee26356c2546471eb88647cf2cd617769