Dec 18 09:29:53.757 INFO checking vtkio-0.1.6 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 09:29:53.757 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-5/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/vtkio/0.1.6:/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 09:29:54.314 INFO [stdout] 91ebaf474cc5f358d21738d17b8507ad48fd9b352b9ee239e585f8fd2e8b7304
Dec 18 09:29:54.316 INFO running `"docker" "start" "-a" "91ebaf474cc5f358d21738d17b8507ad48fd9b352b9ee239e585f8fd2e8b7304"`
Dec 18 09:29:56.076 INFO [stderr]     Checking reinterpret v0.1.2
Dec 18 09:29:56.385 INFO [stderr]     Checking data-buffer v0.4.3
Dec 18 09:29:57.002 INFO [stderr]     Checking vtkio v0.1.6 (/opt/crater/workdir)
Dec 18 09:30:01.892 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 09:30:01.893 INFO [stderr]   --> src/writer.rs:40:17
Dec 18 09:30:01.893 INFO [stderr]    |
Dec 18 09:30:01.893 INFO [stderr] 40 |                 write!(self, "\n");
Dec 18 09:30:01.893 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^
Dec 18 09:30:01.894 INFO [stderr]    |
Dec 18 09:30:01.894 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 09:30:01.894 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 09:30:01.895 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 09:30:01.895 INFO [stderr] 
Dec 18 09:30:01.896 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 09:30:01.896 INFO [stderr]    --> src/writer.rs:169:21
Dec 18 09:30:01.896 INFO [stderr]     |
Dec 18 09:30:01.896 INFO [stderr] 169 |                     write!(self, "\n");
Dec 18 09:30:01.897 INFO [stderr]     |                     ^^^^^^^^^^^^^^^^^^^
Dec 18 09:30:01.897 INFO [stderr]     |
Dec 18 09:30:01.897 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 09:30:01.898 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 09:30:01.898 INFO [stderr] 
Dec 18 09:30:01.899 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 09:30:01.899 INFO [stderr]    --> src/writer.rs:331:13
Dec 18 09:30:01.899 INFO [stderr]     |
Dec 18 09:30:01.899 INFO [stderr] 331 |             write!(self, "\n");
Dec 18 09:30:01.900 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^
Dec 18 09:30:01.900 INFO [stderr]     |
Dec 18 09:30:01.900 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 09:30:01.901 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 09:30:01.901 INFO [stderr] 
Dec 18 09:30:01.904 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 09:30:01.904 INFO [stderr]   --> src/writer.rs:40:17
Dec 18 09:30:01.904 INFO [stderr]    |
Dec 18 09:30:01.904 INFO [stderr] 40 |                 write!(self, "\n");
Dec 18 09:30:01.904 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^
Dec 18 09:30:01.904 INFO [stderr]    |
Dec 18 09:30:01.904 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 09:30:01.905 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 09:30:01.905 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 09:30:01.905 INFO [stderr] 
Dec 18 09:30:01.908 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 09:30:01.908 INFO [stderr]    --> src/writer.rs:169:21
Dec 18 09:30:01.908 INFO [stderr]     |
Dec 18 09:30:01.908 INFO [stderr] 169 |                     write!(self, "\n");
Dec 18 09:30:01.908 INFO [stderr]     |                     ^^^^^^^^^^^^^^^^^^^
Dec 18 09:30:01.908 INFO [stderr]     |
Dec 18 09:30:01.908 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 09:30:01.908 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 09:30:01.908 INFO [stderr] 
Dec 18 09:30:01.908 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 09:30:01.908 INFO [stderr]    --> src/writer.rs:331:13
Dec 18 09:30:01.908 INFO [stderr]     |
Dec 18 09:30:01.908 INFO [stderr] 331 |             write!(self, "\n");
Dec 18 09:30:01.908 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^
Dec 18 09:30:01.908 INFO [stderr]     |
Dec 18 09:30:01.908 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 09:30:01.908 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 09:30:01.908 INFO [stderr] 
Dec 18 09:30:03.089 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.10s
Dec 18 09:30:04.457 INFO running `"docker" "inspect" "91ebaf474cc5f358d21738d17b8507ad48fd9b352b9ee239e585f8fd2e8b7304"`
Dec 18 09:30:04.772 INFO running `"docker" "rm" "-f" "91ebaf474cc5f358d21738d17b8507ad48fd9b352b9ee239e585f8fd2e8b7304"`
Dec 18 09:30:05.112 INFO [stdout] 91ebaf474cc5f358d21738d17b8507ad48fd9b352b9ee239e585f8fd2e8b7304