Dec 18 11:20:03.161 INFO checking settingsfile-0.2.5 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 11:20:03.161 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-7/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/settingsfile/0.2.5:/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 11:20:03.608 INFO [stdout] 39341ef4b7b746b1161d8ec5e439d1e3b71de69a92cb259eac6d18ee222ab70f
Dec 18 11:20:03.620 INFO running `"docker" "start" "-a" "39341ef4b7b746b1161d8ec5e439d1e3b71de69a92cb259eac6d18ee222ab70f"`
Dec 18 11:20:05.184 INFO [stderr]     Checking settingsfile v0.2.5 (/opt/crater/workdir)
Dec 18 11:20:06.978 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 11:20:06.978 INFO [stderr]    --> src/structs/types.rs:103:17
Dec 18 11:20:06.978 INFO [stderr]     |
Dec 18 11:20:06.978 INFO [stderr] 103 |                 write!(f,"[ ");
Dec 18 11:20:06.978 INFO [stderr]     |                 ^^^^^^^^^^^^^^^
Dec 18 11:20:06.978 INFO [stderr]     |
Dec 18 11:20:06.978 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 11:20:06.978 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 11:20:06.985 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 11:20:06.985 INFO [stderr] 
Dec 18 11:20:06.985 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 11:20:06.985 INFO [stderr]    --> src/structs/types.rs:105:21
Dec 18 11:20:06.985 INFO [stderr]     |
Dec 18 11:20:06.985 INFO [stderr] 105 |                     write!(f,"{}",value[i]);
Dec 18 11:20:06.985 INFO [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 11:20:06.985 INFO [stderr]     |
Dec 18 11:20:06.985 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 11:20:06.985 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 11:20:06.985 INFO [stderr] 
Dec 18 11:20:06.985 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 11:20:06.985 INFO [stderr]    --> src/structs/types.rs:107:25
Dec 18 11:20:06.985 INFO [stderr]     |
Dec 18 11:20:06.985 INFO [stderr] 107 |                         write!(f,", ");
Dec 18 11:20:06.985 INFO [stderr]     |                         ^^^^^^^^^^^^^^^
Dec 18 11:20:06.985 INFO [stderr]     |
Dec 18 11:20:06.985 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 11:20:06.985 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 11:20:06.985 INFO [stderr] 
Dec 18 11:20:06.985 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 11:20:06.985 INFO [stderr]    --> src/structs/types.rs:113:17
Dec 18 11:20:06.985 INFO [stderr]     |
Dec 18 11:20:06.985 INFO [stderr] 113 |                 write!(f,"{{ ");
Dec 18 11:20:06.985 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^
Dec 18 11:20:06.985 INFO [stderr]     |
Dec 18 11:20:06.985 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 11:20:06.985 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 11:20:06.985 INFO [stderr] 
Dec 18 11:20:06.985 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 11:20:06.985 INFO [stderr]    --> src/structs/types.rs:115:21
Dec 18 11:20:06.985 INFO [stderr]     |
Dec 18 11:20:06.985 INFO [stderr] 115 |                     write!(f,"{} : {}, ", k,v);
Dec 18 11:20:06.985 INFO [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 11:20:06.985 INFO [stderr]     |
Dec 18 11:20:06.985 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 11:20:06.985 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 11:20:06.985 INFO [stderr] 
Dec 18 11:20:07.012 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 11:20:07.012 INFO [stderr]    --> src/structs/types.rs:103:17
Dec 18 11:20:07.012 INFO [stderr]     |
Dec 18 11:20:07.012 INFO [stderr] 103 |                 write!(f,"[ ");
Dec 18 11:20:07.012 INFO [stderr]     |                 ^^^^^^^^^^^^^^^
Dec 18 11:20:07.012 INFO [stderr]     |
Dec 18 11:20:07.012 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 11:20:07.012 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 11:20:07.012 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 11:20:07.012 INFO [stderr] 
Dec 18 11:20:07.012 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 11:20:07.012 INFO [stderr]    --> src/structs/types.rs:105:21
Dec 18 11:20:07.012 INFO [stderr]     |
Dec 18 11:20:07.012 INFO [stderr] 105 |                     write!(f,"{}",value[i]);
Dec 18 11:20:07.012 INFO [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 11:20:07.012 INFO [stderr]     |
Dec 18 11:20:07.013 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 11:20:07.013 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 11:20:07.013 INFO [stderr] 
Dec 18 11:20:07.013 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 11:20:07.013 INFO [stderr]    --> src/structs/types.rs:107:25
Dec 18 11:20:07.013 INFO [stderr]     |
Dec 18 11:20:07.013 INFO [stderr] 107 |                         write!(f,", ");
Dec 18 11:20:07.013 INFO [stderr]     |                         ^^^^^^^^^^^^^^^
Dec 18 11:20:07.013 INFO [stderr]     |
Dec 18 11:20:07.013 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 11:20:07.013 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 11:20:07.013 INFO [stderr] 
Dec 18 11:20:07.013 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 11:20:07.013 INFO [stderr]    --> src/structs/types.rs:113:17
Dec 18 11:20:07.013 INFO [stderr]     |
Dec 18 11:20:07.013 INFO [stderr] 113 |                 write!(f,"{{ ");
Dec 18 11:20:07.013 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^
Dec 18 11:20:07.013 INFO [stderr]     |
Dec 18 11:20:07.013 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 11:20:07.013 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 11:20:07.013 INFO [stderr] 
Dec 18 11:20:07.013 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 11:20:07.013 INFO [stderr]    --> src/structs/types.rs:115:21
Dec 18 11:20:07.013 INFO [stderr]     |
Dec 18 11:20:07.013 INFO [stderr] 115 |                     write!(f,"{} : {}, ", k,v);
Dec 18 11:20:07.013 INFO [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 11:20:07.013 INFO [stderr]     |
Dec 18 11:20:07.013 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 11:20:07.013 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 11:20:07.013 INFO [stderr] 
Dec 18 11:20:08.316 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.25s
Dec 18 11:20:08.962 INFO running `"docker" "inspect" "39341ef4b7b746b1161d8ec5e439d1e3b71de69a92cb259eac6d18ee222ab70f"`
Dec 18 11:20:09.146 INFO running `"docker" "rm" "-f" "39341ef4b7b746b1161d8ec5e439d1e3b71de69a92cb259eac6d18ee222ab70f"`
Dec 18 11:20:09.412 INFO [stdout] 39341ef4b7b746b1161d8ec5e439d1e3b71de69a92cb259eac6d18ee222ab70f