Dec 05 17:38:39.113 INFO testing kirjavascript/duplex against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 05 17:38:39.113 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-5/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 05 17:38:39.592 INFO [stdout] a97e53476a50b06f1d5aa73947464f333b8d731ec95c5235740275eeb8a4cb8a
Dec 05 17:38:39.595 INFO running `"docker" "start" "-a" "a97e53476a50b06f1d5aa73947464f333b8d731ec95c5235740275eeb8a4cb8a"`
Dec 05 17:38:41.340 INFO [stderr] usermod: no changes
Dec 05 17:38:41.462 INFO [stderr]    Compiling memchr v2.1.1
Dec 05 17:38:43.446 INFO [stderr]    Compiling nom v4.1.1
Dec 05 17:38:45.974 INFO [stderr]    Compiling duplex v0.1.0 (/source)
Dec 05 17:38:46.908 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:46.909 INFO [stderr]    --> src/cube.rs:546:9
Dec 05 17:38:46.909 INFO [stderr]     |
Dec 05 17:38:46.910 INFO [stderr] 546 |         write!(f, "{} ", self.corners[0]);
Dec 05 17:38:46.910 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:46.910 INFO [stderr]     |
Dec 05 17:38:46.911 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 05 17:38:46.911 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:46.911 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 05 17:38:46.911 INFO [stderr] 
Dec 05 17:38:46.912 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:46.912 INFO [stderr]    --> src/cube.rs:547:9
Dec 05 17:38:46.912 INFO [stderr]     |
Dec 05 17:38:46.913 INFO [stderr] 547 |         write!(f, "{} ", self.edges[0]);
Dec 05 17:38:46.913 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:46.914 INFO [stderr]     |
Dec 05 17:38:46.914 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:46.914 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 05 17:38:46.914 INFO [stderr] 
Dec 05 17:38:46.915 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:46.915 INFO [stderr]    --> src/cube.rs:548:9
Dec 05 17:38:46.916 INFO [stderr]     |
Dec 05 17:38:46.916 INFO [stderr] 548 |         write!(f, "{}\n", self.corners[1]);
Dec 05 17:38:46.916 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:46.917 INFO [stderr]     |
Dec 05 17:38:46.917 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:46.917 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 05 17:38:46.918 INFO [stderr] 
Dec 05 17:38:46.918 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:46.918 INFO [stderr]    --> src/cube.rs:549:9
Dec 05 17:38:46.919 INFO [stderr]     |
Dec 05 17:38:46.919 INFO [stderr] 549 |         write!(f, "{}  ", self.edges[3]);
Dec 05 17:38:46.919 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:46.920 INFO [stderr]     |
Dec 05 17:38:46.920 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:46.921 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 05 17:38:46.921 INFO [stderr] 
Dec 05 17:38:46.921 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:46.922 INFO [stderr]    --> src/cube.rs:550:9
Dec 05 17:38:46.922 INFO [stderr]     |
Dec 05 17:38:46.922 INFO [stderr] 550 |         write!(f, "{:?}  ", self.centres[0]);
Dec 05 17:38:46.923 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:46.923 INFO [stderr]     |
Dec 05 17:38:46.923 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:46.924 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 05 17:38:46.924 INFO [stderr] 
Dec 05 17:38:46.924 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:46.924 INFO [stderr]    --> src/cube.rs:551:9
Dec 05 17:38:46.925 INFO [stderr]     |
Dec 05 17:38:46.925 INFO [stderr] 551 |         write!(f, "{}  \n", self.edges[1]);
Dec 05 17:38:46.926 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:46.926 INFO [stderr]     |
Dec 05 17:38:46.926 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:46.927 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 05 17:38:46.927 INFO [stderr] 
Dec 05 17:38:46.927 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:46.928 INFO [stderr]    --> src/cube.rs:552:9
Dec 05 17:38:46.928 INFO [stderr]     |
Dec 05 17:38:46.928 INFO [stderr] 552 |         write!(f, "{} ", self.corners[3]);
Dec 05 17:38:46.929 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:46.929 INFO [stderr]     |
Dec 05 17:38:46.929 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:46.929 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 05 17:38:46.929 INFO [stderr] 
Dec 05 17:38:46.930 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:46.930 INFO [stderr]    --> src/cube.rs:553:9
Dec 05 17:38:46.930 INFO [stderr]     |
Dec 05 17:38:46.930 INFO [stderr] 553 |         write!(f, "{} ", self.edges[2]);
Dec 05 17:38:46.930 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:46.930 INFO [stderr]     |
Dec 05 17:38:46.931 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:46.931 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 05 17:38:46.931 INFO [stderr] 
Dec 05 17:38:46.931 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:46.931 INFO [stderr]    --> src/cube.rs:554:9
Dec 05 17:38:46.931 INFO [stderr]     |
Dec 05 17:38:46.931 INFO [stderr] 554 |         write!(f, "{}\n", self.corners[2]);
Dec 05 17:38:46.931 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:46.932 INFO [stderr]     |
Dec 05 17:38:46.932 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:46.932 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 05 17:38:46.932 INFO [stderr] 
Dec 05 17:38:46.932 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:46.932 INFO [stderr]    --> src/cube.rs:555:9
Dec 05 17:38:46.932 INFO [stderr]     |
Dec 05 17:38:46.932 INFO [stderr] 555 |         write!(f, "--  -- --\n");
Dec 05 17:38:46.932 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:46.932 INFO [stderr]     |
Dec 05 17:38:46.933 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:46.933 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 05 17:38:46.933 INFO [stderr] 
Dec 05 17:38:46.933 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:46.933 INFO [stderr]    --> src/cube.rs:556:9
Dec 05 17:38:46.933 INFO [stderr]     |
Dec 05 17:38:46.933 INFO [stderr] 556 |         write!(f, "{}  ", self.edges[4]);
Dec 05 17:38:46.933 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:46.933 INFO [stderr]     |
Dec 05 17:38:46.934 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:46.934 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 05 17:38:46.934 INFO [stderr] 
Dec 05 17:38:46.934 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:46.934 INFO [stderr]    --> src/cube.rs:557:9
Dec 05 17:38:46.934 INFO [stderr]     |
Dec 05 17:38:46.934 INFO [stderr] 557 |         write!(f, "{:?}  ", self.centres[2]);
Dec 05 17:38:46.934 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:46.934 INFO [stderr]     |
Dec 05 17:38:46.935 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:46.935 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 05 17:38:46.935 INFO [stderr] 
Dec 05 17:38:46.935 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:46.935 INFO [stderr]    --> src/cube.rs:558:9
Dec 05 17:38:46.936 INFO [stderr]     |
Dec 05 17:38:46.936 INFO [stderr] 558 |         write!(f, "{}  \n", self.edges[5]);
Dec 05 17:38:46.936 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:46.936 INFO [stderr]     |
Dec 05 17:38:46.937 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:46.937 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 05 17:38:46.937 INFO [stderr] 
Dec 05 17:38:46.937 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:46.937 INFO [stderr]    --> src/cube.rs:559:9
Dec 05 17:38:46.938 INFO [stderr]     |
Dec 05 17:38:46.938 INFO [stderr] 559 |         write!(f, "{:?}       ", self.centres[5]);
Dec 05 17:38:46.938 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:46.938 INFO [stderr]     |
Dec 05 17:38:46.938 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:46.938 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 05 17:38:46.938 INFO [stderr] 
Dec 05 17:38:46.938 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:46.938 INFO [stderr]    --> src/cube.rs:560:9
Dec 05 17:38:46.938 INFO [stderr]     |
Dec 05 17:38:46.939 INFO [stderr] 560 |         write!(f, "{:?}\n", self.centres[3]);
Dec 05 17:38:46.939 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:46.939 INFO [stderr]     |
Dec 05 17:38:46.939 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:46.939 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 05 17:38:46.940 INFO [stderr] 
Dec 05 17:38:46.940 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:46.940 INFO [stderr]    --> src/cube.rs:561:9
Dec 05 17:38:46.940 INFO [stderr]     |
Dec 05 17:38:46.940 INFO [stderr] 561 |         write!(f, "{}  ", self.edges[7]);
Dec 05 17:38:46.940 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:46.941 INFO [stderr]     |
Dec 05 17:38:46.941 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:46.941 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 05 17:38:46.941 INFO [stderr] 
Dec 05 17:38:46.941 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:46.941 INFO [stderr]    --> src/cube.rs:562:9
Dec 05 17:38:46.941 INFO [stderr]     |
Dec 05 17:38:46.942 INFO [stderr] 562 |         write!(f, "{:?}  ", self.centres[4]);
Dec 05 17:38:46.942 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:46.942 INFO [stderr]     |
Dec 05 17:38:46.942 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:46.942 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 05 17:38:46.942 INFO [stderr] 
Dec 05 17:38:46.942 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:46.943 INFO [stderr]    --> src/cube.rs:563:9
Dec 05 17:38:46.943 INFO [stderr]     |
Dec 05 17:38:46.943 INFO [stderr] 563 |         write!(f, "{}\n", self.edges[6]);
Dec 05 17:38:46.943 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:46.943 INFO [stderr]     |
Dec 05 17:38:46.943 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:46.944 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 05 17:38:46.944 INFO [stderr] 
Dec 05 17:38:46.944 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:46.944 INFO [stderr]    --> src/cube.rs:564:9
Dec 05 17:38:46.944 INFO [stderr]     |
Dec 05 17:38:46.944 INFO [stderr] 564 |         write!(f, "--  -- --\n");
Dec 05 17:38:46.945 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:46.945 INFO [stderr]     |
Dec 05 17:38:46.945 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:46.945 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 05 17:38:46.945 INFO [stderr] 
Dec 05 17:38:46.945 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:46.945 INFO [stderr]    --> src/cube.rs:565:9
Dec 05 17:38:46.946 INFO [stderr]     |
Dec 05 17:38:46.946 INFO [stderr] 565 |         write!(f, "{} ", self.corners[4]);
Dec 05 17:38:46.946 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:46.946 INFO [stderr]     |
Dec 05 17:38:46.946 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:46.947 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 05 17:38:46.947 INFO [stderr] 
Dec 05 17:38:46.947 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:46.947 INFO [stderr]    --> src/cube.rs:566:9
Dec 05 17:38:46.947 INFO [stderr]     |
Dec 05 17:38:46.947 INFO [stderr] 566 |         write!(f, "{} ", self.edges[8]);
Dec 05 17:38:46.948 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:46.948 INFO [stderr]     |
Dec 05 17:38:46.948 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:46.948 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 05 17:38:46.948 INFO [stderr] 
Dec 05 17:38:46.948 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:46.948 INFO [stderr]    --> src/cube.rs:567:9
Dec 05 17:38:46.948 INFO [stderr]     |
Dec 05 17:38:46.948 INFO [stderr] 567 |         write!(f, "{}\n", self.corners[5]);
Dec 05 17:38:46.948 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:46.949 INFO [stderr]     |
Dec 05 17:38:46.949 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:46.949 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 05 17:38:46.949 INFO [stderr] 
Dec 05 17:38:46.949 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:46.949 INFO [stderr]    --> src/cube.rs:568:9
Dec 05 17:38:46.949 INFO [stderr]     |
Dec 05 17:38:46.949 INFO [stderr] 568 |         write!(f, "{}  ", self.edges[11]);
Dec 05 17:38:46.949 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:46.950 INFO [stderr]     |
Dec 05 17:38:46.950 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:46.950 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 05 17:38:46.950 INFO [stderr] 
Dec 05 17:38:46.950 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:46.950 INFO [stderr]    --> src/cube.rs:569:9
Dec 05 17:38:46.951 INFO [stderr]     |
Dec 05 17:38:46.951 INFO [stderr] 569 |         write!(f, "{:?}  ", self.centres[1]);
Dec 05 17:38:46.951 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:46.951 INFO [stderr]     |
Dec 05 17:38:46.951 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:46.951 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 05 17:38:46.952 INFO [stderr] 
Dec 05 17:38:46.952 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:46.952 INFO [stderr]    --> src/cube.rs:570:9
Dec 05 17:38:46.952 INFO [stderr]     |
Dec 05 17:38:46.952 INFO [stderr] 570 |         write!(f, "{}  \n", self.edges[9]);
Dec 05 17:38:46.952 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:46.953 INFO [stderr]     |
Dec 05 17:38:46.953 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:46.953 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 05 17:38:46.953 INFO [stderr] 
Dec 05 17:38:46.953 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:46.953 INFO [stderr]    --> src/cube.rs:571:9
Dec 05 17:38:46.953 INFO [stderr]     |
Dec 05 17:38:46.953 INFO [stderr] 571 |         write!(f, "{} ", self.corners[7]);
Dec 05 17:38:46.954 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:46.954 INFO [stderr]     |
Dec 05 17:38:46.954 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:46.954 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 05 17:38:46.954 INFO [stderr] 
Dec 05 17:38:46.955 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:46.955 INFO [stderr]    --> src/cube.rs:572:9
Dec 05 17:38:46.955 INFO [stderr]     |
Dec 05 17:38:46.955 INFO [stderr] 572 |         write!(f, "{} ", self.edges[10]);
Dec 05 17:38:46.955 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:46.956 INFO [stderr]     |
Dec 05 17:38:46.956 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:46.956 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 05 17:38:46.956 INFO [stderr] 
Dec 05 17:38:48.363 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.00s
Dec 05 17:38:48.367 INFO [stderr] su: No module specific data is present
Dec 05 17:38:49.764 INFO running `"docker" "inspect" "a97e53476a50b06f1d5aa73947464f333b8d731ec95c5235740275eeb8a4cb8a"`
Dec 05 17:38:50.102 INFO running `"docker" "rm" "-f" "a97e53476a50b06f1d5aa73947464f333b8d731ec95c5235740275eeb8a4cb8a"`
Dec 05 17:38:50.376 INFO [stdout] a97e53476a50b06f1d5aa73947464f333b8d731ec95c5235740275eeb8a4cb8a
Dec 05 17:38:50.378 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-5/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 05 17:38:50.770 INFO [stdout] aea8d15bc83c06dfe7d1d21192517c2f333b88398d09b600487e2c2922bcdbfe
Dec 05 17:38:50.773 INFO running `"docker" "start" "-a" "aea8d15bc83c06dfe7d1d21192517c2f333b88398d09b600487e2c2922bcdbfe"`
Dec 05 17:38:53.193 INFO [stderr] usermod: no changes
Dec 05 17:38:53.257 INFO [stderr]    Compiling duplex v0.1.0 (/source)
Dec 05 17:38:54.226 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:54.226 INFO [stderr]    --> src/cube.rs:546:9
Dec 05 17:38:54.226 INFO [stderr]     |
Dec 05 17:38:54.226 INFO [stderr] 546 |         write!(f, "{} ", self.corners[0]);
Dec 05 17:38:54.226 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:54.226 INFO [stderr]     |
Dec 05 17:38:54.226 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 05 17:38:54.226 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:54.226 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 05 17:38:54.226 INFO [stderr] 
Dec 05 17:38:54.226 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:54.226 INFO [stderr]    --> src/cube.rs:547:9
Dec 05 17:38:54.226 INFO [stderr]     |
Dec 05 17:38:54.226 INFO [stderr] 547 |         write!(f, "{} ", self.edges[0]);
Dec 05 17:38:54.226 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:54.226 INFO [stderr]     |
Dec 05 17:38:54.226 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:54.226 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 05 17:38:54.226 INFO [stderr] 
Dec 05 17:38:54.226 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:54.226 INFO [stderr]    --> src/cube.rs:548:9
Dec 05 17:38:54.226 INFO [stderr]     |
Dec 05 17:38:54.226 INFO [stderr] 548 |         write!(f, "{}\n", self.corners[1]);
Dec 05 17:38:54.227 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:54.227 INFO [stderr]     |
Dec 05 17:38:54.227 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:54.227 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 05 17:38:54.227 INFO [stderr] 
Dec 05 17:38:54.227 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:54.227 INFO [stderr]    --> src/cube.rs:549:9
Dec 05 17:38:54.227 INFO [stderr]     |
Dec 05 17:38:54.227 INFO [stderr] 549 |         write!(f, "{}  ", self.edges[3]);
Dec 05 17:38:54.227 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:54.227 INFO [stderr]     |
Dec 05 17:38:54.227 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:54.227 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 05 17:38:54.227 INFO [stderr] 
Dec 05 17:38:54.227 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:54.227 INFO [stderr]    --> src/cube.rs:550:9
Dec 05 17:38:54.227 INFO [stderr]     |
Dec 05 17:38:54.227 INFO [stderr] 550 |         write!(f, "{:?}  ", self.centres[0]);
Dec 05 17:38:54.227 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:54.227 INFO [stderr]     |
Dec 05 17:38:54.227 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:54.227 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 05 17:38:54.227 INFO [stderr] 
Dec 05 17:38:54.227 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:54.227 INFO [stderr]    --> src/cube.rs:551:9
Dec 05 17:38:54.227 INFO [stderr]     |
Dec 05 17:38:54.227 INFO [stderr] 551 |         write!(f, "{}  \n", self.edges[1]);
Dec 05 17:38:54.227 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:54.227 INFO [stderr]     |
Dec 05 17:38:54.227 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:54.227 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 05 17:38:54.227 INFO [stderr] 
Dec 05 17:38:54.227 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:54.227 INFO [stderr]    --> src/cube.rs:552:9
Dec 05 17:38:54.227 INFO [stderr]     |
Dec 05 17:38:54.227 INFO [stderr] 552 |         write!(f, "{} ", self.corners[3]);
Dec 05 17:38:54.227 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:54.227 INFO [stderr]     |
Dec 05 17:38:54.227 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:54.227 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 05 17:38:54.227 INFO [stderr] 
Dec 05 17:38:54.227 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:54.227 INFO [stderr]    --> src/cube.rs:553:9
Dec 05 17:38:54.227 INFO [stderr]     |
Dec 05 17:38:54.227 INFO [stderr] 553 |         write!(f, "{} ", self.edges[2]);
Dec 05 17:38:54.227 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:54.227 INFO [stderr]     |
Dec 05 17:38:54.227 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:54.227 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 05 17:38:54.227 INFO [stderr] 
Dec 05 17:38:54.227 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:54.227 INFO [stderr]    --> src/cube.rs:554:9
Dec 05 17:38:54.227 INFO [stderr]     |
Dec 05 17:38:54.227 INFO [stderr] 554 |         write!(f, "{}\n", self.corners[2]);
Dec 05 17:38:54.227 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:54.227 INFO [stderr]     |
Dec 05 17:38:54.227 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:54.227 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 05 17:38:54.227 INFO [stderr] 
Dec 05 17:38:54.228 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:54.228 INFO [stderr]    --> src/cube.rs:555:9
Dec 05 17:38:54.228 INFO [stderr]     |
Dec 05 17:38:54.228 INFO [stderr] 555 |         write!(f, "--  -- --\n");
Dec 05 17:38:54.228 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:54.228 INFO [stderr]     |
Dec 05 17:38:54.228 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:54.228 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 05 17:38:54.228 INFO [stderr] 
Dec 05 17:38:54.228 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:54.228 INFO [stderr]    --> src/cube.rs:556:9
Dec 05 17:38:54.228 INFO [stderr]     |
Dec 05 17:38:54.228 INFO [stderr] 556 |         write!(f, "{}  ", self.edges[4]);
Dec 05 17:38:54.228 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:54.228 INFO [stderr]     |
Dec 05 17:38:54.228 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:54.228 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 05 17:38:54.228 INFO [stderr] 
Dec 05 17:38:54.228 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:54.228 INFO [stderr]    --> src/cube.rs:557:9
Dec 05 17:38:54.228 INFO [stderr]     |
Dec 05 17:38:54.228 INFO [stderr] 557 |         write!(f, "{:?}  ", self.centres[2]);
Dec 05 17:38:54.228 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:54.228 INFO [stderr]     |
Dec 05 17:38:54.228 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:54.228 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 05 17:38:54.228 INFO [stderr] 
Dec 05 17:38:54.228 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:54.228 INFO [stderr]    --> src/cube.rs:558:9
Dec 05 17:38:54.228 INFO [stderr]     |
Dec 05 17:38:54.228 INFO [stderr] 558 |         write!(f, "{}  \n", self.edges[5]);
Dec 05 17:38:54.228 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:54.228 INFO [stderr]     |
Dec 05 17:38:54.228 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:54.228 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 05 17:38:54.228 INFO [stderr] 
Dec 05 17:38:54.228 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:54.228 INFO [stderr]    --> src/cube.rs:559:9
Dec 05 17:38:54.228 INFO [stderr]     |
Dec 05 17:38:54.228 INFO [stderr] 559 |         write!(f, "{:?}       ", self.centres[5]);
Dec 05 17:38:54.228 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:54.228 INFO [stderr]     |
Dec 05 17:38:54.228 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:54.228 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 05 17:38:54.228 INFO [stderr] 
Dec 05 17:38:54.228 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:54.228 INFO [stderr]    --> src/cube.rs:560:9
Dec 05 17:38:54.228 INFO [stderr]     |
Dec 05 17:38:54.228 INFO [stderr] 560 |         write!(f, "{:?}\n", self.centres[3]);
Dec 05 17:38:54.228 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:54.228 INFO [stderr]     |
Dec 05 17:38:54.228 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:54.228 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 05 17:38:54.228 INFO [stderr] 
Dec 05 17:38:54.229 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:54.229 INFO [stderr]    --> src/cube.rs:561:9
Dec 05 17:38:54.229 INFO [stderr]     |
Dec 05 17:38:54.229 INFO [stderr] 561 |         write!(f, "{}  ", self.edges[7]);
Dec 05 17:38:54.229 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:54.229 INFO [stderr]     |
Dec 05 17:38:54.229 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:54.229 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 05 17:38:54.229 INFO [stderr] 
Dec 05 17:38:54.229 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:54.229 INFO [stderr]    --> src/cube.rs:562:9
Dec 05 17:38:54.229 INFO [stderr]     |
Dec 05 17:38:54.229 INFO [stderr] 562 |         write!(f, "{:?}  ", self.centres[4]);
Dec 05 17:38:54.229 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:54.229 INFO [stderr]     |
Dec 05 17:38:54.229 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:54.229 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 05 17:38:54.229 INFO [stderr] 
Dec 05 17:38:54.229 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:54.229 INFO [stderr]    --> src/cube.rs:563:9
Dec 05 17:38:54.229 INFO [stderr]     |
Dec 05 17:38:54.229 INFO [stderr] 563 |         write!(f, "{}\n", self.edges[6]);
Dec 05 17:38:54.229 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:54.229 INFO [stderr]     |
Dec 05 17:38:54.229 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:54.229 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 05 17:38:54.229 INFO [stderr] 
Dec 05 17:38:54.229 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:54.229 INFO [stderr]    --> src/cube.rs:564:9
Dec 05 17:38:54.229 INFO [stderr]     |
Dec 05 17:38:54.229 INFO [stderr] 564 |         write!(f, "--  -- --\n");
Dec 05 17:38:54.229 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:54.229 INFO [stderr]     |
Dec 05 17:38:54.229 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:54.229 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 05 17:38:54.229 INFO [stderr] 
Dec 05 17:38:54.229 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:54.229 INFO [stderr]    --> src/cube.rs:565:9
Dec 05 17:38:54.229 INFO [stderr]     |
Dec 05 17:38:54.229 INFO [stderr] 565 |         write!(f, "{} ", self.corners[4]);
Dec 05 17:38:54.229 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:54.230 INFO [stderr]     |
Dec 05 17:38:54.230 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:54.230 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 05 17:38:54.230 INFO [stderr] 
Dec 05 17:38:54.230 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:54.230 INFO [stderr]    --> src/cube.rs:566:9
Dec 05 17:38:54.230 INFO [stderr]     |
Dec 05 17:38:54.230 INFO [stderr] 566 |         write!(f, "{} ", self.edges[8]);
Dec 05 17:38:54.230 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:54.230 INFO [stderr]     |
Dec 05 17:38:54.230 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:54.230 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 05 17:38:54.230 INFO [stderr] 
Dec 05 17:38:54.231 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:54.231 INFO [stderr]    --> src/cube.rs:567:9
Dec 05 17:38:54.231 INFO [stderr]     |
Dec 05 17:38:54.231 INFO [stderr] 567 |         write!(f, "{}\n", self.corners[5]);
Dec 05 17:38:54.232 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:54.232 INFO [stderr]     |
Dec 05 17:38:54.232 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:54.233 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 05 17:38:54.233 INFO [stderr] 
Dec 05 17:38:54.233 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:54.233 INFO [stderr]    --> src/cube.rs:568:9
Dec 05 17:38:54.234 INFO [stderr]     |
Dec 05 17:38:54.234 INFO [stderr] 568 |         write!(f, "{}  ", self.edges[11]);
Dec 05 17:38:54.234 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:54.234 INFO [stderr]     |
Dec 05 17:38:54.234 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:54.235 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 05 17:38:54.235 INFO [stderr] 
Dec 05 17:38:54.235 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:54.236 INFO [stderr]    --> src/cube.rs:569:9
Dec 05 17:38:54.236 INFO [stderr]     |
Dec 05 17:38:54.236 INFO [stderr] 569 |         write!(f, "{:?}  ", self.centres[1]);
Dec 05 17:38:54.236 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:54.237 INFO [stderr]     |
Dec 05 17:38:54.237 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:54.237 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 05 17:38:54.237 INFO [stderr] 
Dec 05 17:38:54.238 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:54.238 INFO [stderr]    --> src/cube.rs:570:9
Dec 05 17:38:54.238 INFO [stderr]     |
Dec 05 17:38:54.239 INFO [stderr] 570 |         write!(f, "{}  \n", self.edges[9]);
Dec 05 17:38:54.239 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:54.239 INFO [stderr]     |
Dec 05 17:38:54.240 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:54.240 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 05 17:38:54.240 INFO [stderr] 
Dec 05 17:38:54.241 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:54.241 INFO [stderr]    --> src/cube.rs:571:9
Dec 05 17:38:54.241 INFO [stderr]     |
Dec 05 17:38:54.242 INFO [stderr] 571 |         write!(f, "{} ", self.corners[7]);
Dec 05 17:38:54.242 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:54.242 INFO [stderr]     |
Dec 05 17:38:54.242 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:54.243 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 05 17:38:54.243 INFO [stderr] 
Dec 05 17:38:54.243 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:38:54.244 INFO [stderr]    --> src/cube.rs:572:9
Dec 05 17:38:54.244 INFO [stderr]     |
Dec 05 17:38:54.244 INFO [stderr] 572 |         write!(f, "{} ", self.edges[10]);
Dec 05 17:38:54.244 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:38:54.245 INFO [stderr]     |
Dec 05 17:38:54.245 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:38:54.245 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 05 17:38:54.245 INFO [stderr] 
Dec 05 17:38:54.865 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.65s
Dec 05 17:38:54.868 INFO [stderr] su: No module specific data is present
Dec 05 17:38:56.439 INFO running `"docker" "inspect" "aea8d15bc83c06dfe7d1d21192517c2f333b88398d09b600487e2c2922bcdbfe"`
Dec 05 17:38:56.782 INFO running `"docker" "rm" "-f" "aea8d15bc83c06dfe7d1d21192517c2f333b88398d09b600487e2c2922bcdbfe"`
Dec 05 17:38:57.128 INFO [stdout] aea8d15bc83c06dfe7d1d21192517c2f333b88398d09b600487e2c2922bcdbfe
Dec 05 17:38:57.134 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-5/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 05 17:38:57.628 INFO [stdout] 3f5a5cdc805cc8fbcebeaf986ee3d8572fbaba6df4e4b94e7684747210d2035a
Dec 05 17:38:57.630 INFO running `"docker" "start" "-a" "3f5a5cdc805cc8fbcebeaf986ee3d8572fbaba6df4e4b94e7684747210d2035a"`
Dec 05 17:38:59.821 INFO [stderr] usermod: no changes
Dec 05 17:38:59.895 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
Dec 05 17:38:59.908 INFO [stderr]      Running /target/debug/deps/duplex-78179252e6125229
Dec 05 17:38:59.910 INFO [stdout] 
Dec 05 17:38:59.910 INFO [stdout] running 0 tests
Dec 05 17:38:59.910 INFO [stdout] 
Dec 05 17:38:59.910 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 05 17:38:59.910 INFO [stdout] 
Dec 05 17:38:59.912 INFO [stderr] su: No module specific data is present
Dec 05 17:39:01.577 INFO running `"docker" "inspect" "3f5a5cdc805cc8fbcebeaf986ee3d8572fbaba6df4e4b94e7684747210d2035a"`
Dec 05 17:39:01.950 INFO running `"docker" "rm" "-f" "3f5a5cdc805cc8fbcebeaf986ee3d8572fbaba6df4e4b94e7684747210d2035a"`
Dec 05 17:39:02.230 INFO [stdout] 3f5a5cdc805cc8fbcebeaf986ee3d8572fbaba6df4e4b94e7684747210d2035a