Dec 18 14:01:35.503 INFO checking mhash-0.3.0 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 14:01:35.503 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-7/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 14:01:35.760 INFO [stdout] f41760cbee165fe372632e8ebc36afd41b2378e88f0404ba2f8156a4c7f64bdc
Dec 18 14:01:35.766 INFO running `"docker" "start" "-a" "f41760cbee165fe372632e8ebc36afd41b2378e88f0404ba2f8156a4c7f64bdc"`
Dec 18 14:01:36.574 INFO [stderr]     Checking varmint v0.1.3
Dec 18 14:01:36.574 INFO [stderr]     Checking bs58 v0.2.2
Dec 18 14:01:37.133 INFO [stderr]     Checking mhash v0.3.0 (/opt/crater/workdir)
Dec 18 14:01:37.254 INFO [stderr] warning: lint `fat_ptr_transmutes` has been removed: `was accidentally removed back in 2014`
Dec 18 14:01:37.254 INFO [stderr]  --> src/lib.rs:4:9
Dec 18 14:01:37.254 INFO [stderr]   |
Dec 18 14:01:37.254 INFO [stderr] 4 | #![warn(fat_ptr_transmutes)]
Dec 18 14:01:37.254 INFO [stderr]   |         ^^^^^^^^^^^^^^^^^^
Dec 18 14:01:37.254 INFO [stderr]   |
Dec 18 14:01:37.254 INFO [stderr]   = note: #[warn(renamed_and_removed_lints)] on by default
Dec 18 14:01:37.254 INFO [stderr] 
Dec 18 14:01:37.388 INFO [stderr] warning: lint `fat_ptr_transmutes` has been removed: `was accidentally removed back in 2014`
Dec 18 14:01:37.388 INFO [stderr]  --> src/lib.rs:4:9
Dec 18 14:01:37.388 INFO [stderr]   |
Dec 18 14:01:37.388 INFO [stderr] 4 | #![warn(fat_ptr_transmutes)]
Dec 18 14:01:37.388 INFO [stderr]   |         ^^^^^^^^^^^^^^^^^^
Dec 18 14:01:37.388 INFO [stderr]   |
Dec 18 14:01:37.388 INFO [stderr]   = note: #[warn(renamed_and_removed_lints)] on by default
Dec 18 14:01:37.388 INFO [stderr] 
Dec 18 14:01:38.096 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 18 14:01:38.097 INFO [stderr]   --> src/error.rs:29:5
Dec 18 14:01:38.097 INFO [stderr]    |
Dec 18 14:01:38.097 INFO [stderr] 29 | /     error_chain! {
Dec 18 14:01:38.098 INFO [stderr] 30 | |         links {
Dec 18 14:01:38.098 INFO [stderr] 31 | |             creation::Error, creation::ErrorKind, Creation;
Dec 18 14:01:38.098 INFO [stderr] 32 | |         }
Dec 18 14:01:38.098 INFO [stderr] ...  |
Dec 18 14:01:38.099 INFO [stderr] 45 | |         }
Dec 18 14:01:38.099 INFO [stderr] 46 | |     }
Dec 18 14:01:38.099 INFO [stderr]    | |_____^
Dec 18 14:01:38.099 INFO [stderr]    |
Dec 18 14:01:38.099 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 18 14:01:38.100 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 14:01:38.100 INFO [stderr] 
Dec 18 14:01:38.100 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 18 14:01:38.100 INFO [stderr]   --> src/error.rs:54:5
Dec 18 14:01:38.101 INFO [stderr]    |
Dec 18 14:01:38.101 INFO [stderr] 54 | /     error_chain! {
Dec 18 14:01:38.101 INFO [stderr] 55 | |         links {
Dec 18 14:01:38.101 INFO [stderr] 56 | |             from_bytes::Error, from_bytes::ErrorKind, FromBytes;
Dec 18 14:01:38.101 INFO [stderr] 57 | |         }
Dec 18 14:01:38.102 INFO [stderr] ...  |
Dec 18 14:01:38.102 INFO [stderr] 61 | |         }
Dec 18 14:01:38.102 INFO [stderr] 62 | |     }
Dec 18 14:01:38.102 INFO [stderr]    | |_____^
Dec 18 14:01:38.103 INFO [stderr]    |
Dec 18 14:01:38.103 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 14:01:38.103 INFO [stderr] 
Dec 18 14:01:38.193 INFO [stderr] warning: variable does not need to be mutable
Dec 18 14:01:38.193 INFO [stderr]   --> src/multihash_vec.rs:23:17
Dec 18 14:01:38.193 INFO [stderr]    |
Dec 18 14:01:38.194 INFO [stderr] 23 |             let mut writer = &mut bytes;
Dec 18 14:01:38.194 INFO [stderr]    |                 ----^^^^^^
Dec 18 14:01:38.194 INFO [stderr]    |                 |
Dec 18 14:01:38.194 INFO [stderr]    |                 help: remove this `mut`
Dec 18 14:01:38.195 INFO [stderr]    |
Dec 18 14:01:38.195 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 14:01:38.195 INFO [stderr] 
Dec 18 14:01:38.216 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 18 14:01:38.216 INFO [stderr]   --> src/error.rs:29:5
Dec 18 14:01:38.216 INFO [stderr]    |
Dec 18 14:01:38.216 INFO [stderr] 29 | /     error_chain! {
Dec 18 14:01:38.216 INFO [stderr] 30 | |         links {
Dec 18 14:01:38.217 INFO [stderr] 31 | |             creation::Error, creation::ErrorKind, Creation;
Dec 18 14:01:38.217 INFO [stderr] 32 | |         }
Dec 18 14:01:38.217 INFO [stderr] ...  |
Dec 18 14:01:38.217 INFO [stderr] 45 | |         }
Dec 18 14:01:38.217 INFO [stderr] 46 | |     }
Dec 18 14:01:38.217 INFO [stderr]    | |_____^
Dec 18 14:01:38.217 INFO [stderr]    |
Dec 18 14:01:38.217 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 18 14:01:38.217 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 14:01:38.217 INFO [stderr] 
Dec 18 14:01:38.217 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 18 14:01:38.217 INFO [stderr]   --> src/error.rs:54:5
Dec 18 14:01:38.217 INFO [stderr]    |
Dec 18 14:01:38.217 INFO [stderr] 54 | /     error_chain! {
Dec 18 14:01:38.218 INFO [stderr] 55 | |         links {
Dec 18 14:01:38.218 INFO [stderr] 56 | |             from_bytes::Error, from_bytes::ErrorKind, FromBytes;
Dec 18 14:01:38.218 INFO [stderr] 57 | |         }
Dec 18 14:01:38.218 INFO [stderr] ...  |
Dec 18 14:01:38.218 INFO [stderr] 61 | |         }
Dec 18 14:01:38.218 INFO [stderr] 62 | |     }
Dec 18 14:01:38.218 INFO [stderr]    | |_____^
Dec 18 14:01:38.218 INFO [stderr]    |
Dec 18 14:01:38.218 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 14:01:38.218 INFO [stderr] 
Dec 18 14:01:38.396 INFO [stderr] warning: variable does not need to be mutable
Dec 18 14:01:38.396 INFO [stderr]   --> src/multihash_vec.rs:23:17
Dec 18 14:01:38.396 INFO [stderr]    |
Dec 18 14:01:38.396 INFO [stderr] 23 |             let mut writer = &mut bytes;
Dec 18 14:01:38.396 INFO [stderr]    |                 ----^^^^^^
Dec 18 14:01:38.396 INFO [stderr]    |                 |
Dec 18 14:01:38.396 INFO [stderr]    |                 help: remove this `mut`
Dec 18 14:01:38.396 INFO [stderr]    |
Dec 18 14:01:38.396 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 14:01:38.396 INFO [stderr] 
Dec 18 14:01:38.468 INFO [stderr] warning: unused result
Dec 18 14:01:38.468 INFO [stderr]   --> src/read.rs:83:9
Dec 18 14:01:38.468 INFO [stderr]    |
Dec 18 14:01:38.468 INFO [stderr] 83 |         buffer.read_multihash().is_err();
Dec 18 14:01:38.468 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 14:01:38.468 INFO [stderr]    |
Dec 18 14:01:38.468 INFO [stderr] note: lint level defined here
Dec 18 14:01:38.468 INFO [stderr]   --> src/lib.rs:11:9
Dec 18 14:01:38.468 INFO [stderr]    |
Dec 18 14:01:38.468 INFO [stderr] 11 | #![warn(unused_results)]
Dec 18 14:01:38.468 INFO [stderr]    |         ^^^^^^^^^^^^^^
Dec 18 14:01:38.468 INFO [stderr] 
Dec 18 14:01:38.468 INFO [stderr] warning: unused result
Dec 18 14:01:38.468 INFO [stderr]   --> src/read.rs:89:9
Dec 18 14:01:38.468 INFO [stderr]    |
Dec 18 14:01:38.468 INFO [stderr] 89 |         buffer.read_multihash().is_err();
Dec 18 14:01:38.469 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 14:01:38.469 INFO [stderr] 
Dec 18 14:01:38.469 INFO [stderr] warning: unused result
Dec 18 14:01:38.469 INFO [stderr]   --> src/read.rs:95:9
Dec 18 14:01:38.469 INFO [stderr]    |
Dec 18 14:01:38.469 INFO [stderr] 95 |         buffer.read_multihash().is_err();
Dec 18 14:01:38.469 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 14:01:38.469 INFO [stderr] 
Dec 18 14:01:38.469 INFO [stderr] warning: unused result
Dec 18 14:01:38.469 INFO [stderr]    --> src/read.rs:101:9
Dec 18 14:01:38.469 INFO [stderr]     |
Dec 18 14:01:38.469 INFO [stderr] 101 |         buffer.read_multihash().is_err();
Dec 18 14:01:38.469 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 14:01:38.469 INFO [stderr] 
Dec 18 14:01:38.469 INFO [stderr] warning: unused result
Dec 18 14:01:38.469 INFO [stderr]    --> src/read.rs:113:9
Dec 18 14:01:38.469 INFO [stderr]     |
Dec 18 14:01:38.469 INFO [stderr] 113 |         buffer.read_multihash().is_err();
Dec 18 14:01:38.469 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 14:01:38.469 INFO [stderr] 
Dec 18 14:01:38.512 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.00s
Dec 18 14:01:39.285 INFO running `"docker" "inspect" "f41760cbee165fe372632e8ebc36afd41b2378e88f0404ba2f8156a4c7f64bdc"`
Dec 18 14:01:39.595 INFO running `"docker" "rm" "-f" "f41760cbee165fe372632e8ebc36afd41b2378e88f0404ba2f8156a4c7f64bdc"`
Dec 18 14:01:39.784 INFO [stdout] f41760cbee165fe372632e8ebc36afd41b2378e88f0404ba2f8156a4c7f64bdc