Dec 18 00:22:00.051 INFO checking felipesere/dotter against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 00:22:00.051 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-1/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/felipesere/dotter:/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 00:22:00.431 INFO [stdout] 006252d7ed1bb231aba48cf8d9e4b3b2319d728d4c38a01056408493cb537073
Dec 18 00:22:00.433 INFO running `"docker" "start" "-a" "006252d7ed1bb231aba48cf8d9e4b3b2319d728d4c38a01056408493cb537073"`
Dec 18 00:22:03.806 INFO [stderr]    Compiling git-version v0.2.1
Dec 18 00:22:03.813 INFO [stderr]     Checking symlink v0.1.0
Dec 18 00:22:03.923 INFO [stderr]     Checking serde_json v1.0.27
Dec 18 00:22:03.932 INFO [stderr]    Compiling syn v0.14.9
Dec 18 00:22:03.944 INFO [stderr]     Checking serde_urlencoded v0.5.3
Dec 18 00:22:05.692 INFO [stderr]    Compiling dotter v0.1.0 (/opt/crater/workdir)
Dec 18 00:22:08.910 INFO [stderr]     Checking reqwest v0.9.1
Dec 18 00:22:16.749 INFO [stderr]    Compiling synstructure v0.9.0
Dec 18 00:22:19.154 INFO [stderr]    Compiling failure_derive v0.1.2
Dec 18 00:22:21.021 INFO [stderr]     Checking failure v0.1.2
Dec 18 00:22:23.424 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 00:22:23.424 INFO [stderr]    --> src/homebrew.rs:179:9
Dec 18 00:22:23.424 INFO [stderr]     |
Dec 18 00:22:23.424 INFO [stderr] 179 |         brew.execute(&context);
Dec 18 00:22:23.424 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:22:23.424 INFO [stderr]     |
Dec 18 00:22:23.424 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 00:22:23.424 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 00:22:23.424 INFO [stderr] 
Dec 18 00:22:23.424 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 00:22:23.424 INFO [stderr]    --> src/homebrew.rs:182:9
Dec 18 00:22:23.424 INFO [stderr]     |
Dec 18 00:22:23.424 INFO [stderr] 182 |         brew.rollback(&context);
Dec 18 00:22:23.424 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:22:23.424 INFO [stderr]     |
Dec 18 00:22:23.424 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 00:22:23.424 INFO [stderr] 
Dec 18 00:22:23.424 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 00:22:23.424 INFO [stderr]    --> src/homebrew.rs:197:9
Dec 18 00:22:23.424 INFO [stderr]     |
Dec 18 00:22:23.424 INFO [stderr] 197 |         brew_cask.execute(&context);
Dec 18 00:22:23.424 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:22:23.424 INFO [stderr]     |
Dec 18 00:22:23.424 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 00:22:23.424 INFO [stderr] 
Dec 18 00:22:23.424 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 00:22:23.424 INFO [stderr]    --> src/homebrew.rs:200:9
Dec 18 00:22:23.424 INFO [stderr]     |
Dec 18 00:22:23.425 INFO [stderr] 200 |         brew_cask.rollback(&context);
Dec 18 00:22:23.425 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:22:23.425 INFO [stderr]     |
Dec 18 00:22:23.425 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 00:22:23.425 INFO [stderr] 
Dec 18 00:22:23.425 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 00:22:23.425 INFO [stderr]    --> src/homebrew.rs:216:9
Dec 18 00:22:23.425 INFO [stderr]     |
Dec 18 00:22:23.425 INFO [stderr] 216 |         brew_cask.execute(&context);
Dec 18 00:22:23.425 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:22:23.425 INFO [stderr]     |
Dec 18 00:22:23.425 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 00:22:23.425 INFO [stderr] 
Dec 18 00:22:23.425 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 00:22:23.425 INFO [stderr]    --> src/homebrew.rs:219:9
Dec 18 00:22:23.425 INFO [stderr]     |
Dec 18 00:22:23.425 INFO [stderr] 219 |         brew_cask.rollback(&context);
Dec 18 00:22:23.425 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:22:23.425 INFO [stderr]     |
Dec 18 00:22:23.425 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 00:22:23.425 INFO [stderr] 
Dec 18 00:22:23.425 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 00:22:23.425 INFO [stderr]   --> src/shell.rs:41:9
Dec 18 00:22:23.425 INFO [stderr]    |
Dec 18 00:22:23.425 INFO [stderr] 41 |         echo_command.execute(&context);
Dec 18 00:22:23.425 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:22:23.425 INFO [stderr]    |
Dec 18 00:22:23.425 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 00:22:23.425 INFO [stderr] 
Dec 18 00:22:23.425 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 00:22:23.425 INFO [stderr]    --> src/symlinks.rs:110:9
Dec 18 00:22:23.425 INFO [stderr]     |
Dec 18 00:22:23.425 INFO [stderr] 110 |         linker.execute(&context);
Dec 18 00:22:23.425 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:22:23.425 INFO [stderr]     |
Dec 18 00:22:23.425 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 00:22:23.425 INFO [stderr] 
Dec 18 00:22:23.425 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 00:22:23.425 INFO [stderr]    --> src/symlinks.rs:115:9
Dec 18 00:22:23.425 INFO [stderr]     |
Dec 18 00:22:23.425 INFO [stderr] 115 |         linker.rollback(&context);
Dec 18 00:22:23.425 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:22:23.425 INFO [stderr]     |
Dec 18 00:22:23.425 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 00:22:23.425 INFO [stderr] 
Dec 18 00:22:23.425 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 00:22:23.425 INFO [stderr]    --> src/symlinks.rs:141:9
Dec 18 00:22:23.425 INFO [stderr]     |
Dec 18 00:22:23.425 INFO [stderr] 141 |         linker.execute(&context);
Dec 18 00:22:23.425 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:22:23.425 INFO [stderr]     |
Dec 18 00:22:23.425 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 00:22:23.425 INFO [stderr] 
Dec 18 00:22:23.425 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 00:22:23.425 INFO [stderr]    --> src/symlinks.rs:146:9
Dec 18 00:22:23.425 INFO [stderr]     |
Dec 18 00:22:23.425 INFO [stderr] 146 |         linker.rollback(&context);
Dec 18 00:22:23.425 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:22:23.425 INFO [stderr]     |
Dec 18 00:22:23.425 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 00:22:23.425 INFO [stderr] 
Dec 18 00:22:23.611 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.19s
Dec 18 00:22:24.456 INFO running `"docker" "inspect" "006252d7ed1bb231aba48cf8d9e4b3b2319d728d4c38a01056408493cb537073"`
Dec 18 00:22:24.728 INFO running `"docker" "rm" "-f" "006252d7ed1bb231aba48cf8d9e4b3b2319d728d4c38a01056408493cb537073"`
Dec 18 00:22:25.020 INFO [stdout] 006252d7ed1bb231aba48cf8d9e4b3b2319d728d4c38a01056408493cb537073