Dec 05 02:51:27.239 INFO checking DenialAdams/t_test_runner against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 02:51:27.239 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-0/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-alt check --frozen --all --all-targets" "-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 02:51:27.637 INFO [stdout] 976c27091258fc4ee59936d2c7f981815981f758892d58e0ac901c00261fc835
Dec 05 02:51:27.639 INFO running `"docker" "start" "-a" "976c27091258fc4ee59936d2c7f981815981f758892d58e0ac901c00261fc835"`
Dec 05 02:51:29.053 INFO [stderr] usermod: no changes
Dec 05 02:51:29.150 INFO [stderr]     Checking os_pipe v0.8.0
Dec 05 02:51:29.788 INFO [stderr]     Checking test_runner v0.3.0 (/source)
Dec 05 02:51:31.083 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:51:31.083 INFO [stderr]   --> src/main.rs:72:13
Dec 05 02:51:31.083 INFO [stderr]    |
Dec 05 02:51:31.083 INFO [stderr] 72 |             write!(&mut out_handle, "{}: ", entry.file_name().unwrap().to_str().unwrap());
Dec 05 02:51:31.083 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:51:31.083 INFO [stderr]    |
Dec 05 02:51:31.083 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 02:51:31.084 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:51:31.084 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 02:51:31.084 INFO [stderr] 
Dec 05 02:51:31.084 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:51:31.084 INFO [stderr]   --> src/main.rs:74:13
Dec 05 02:51:31.084 INFO [stderr]    |
Dec 05 02:51:31.084 INFO [stderr] 74 |             writeln!(&mut out_handle, "ok");
Dec 05 02:51:31.084 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:51:31.084 INFO [stderr]    |
Dec 05 02:51:31.084 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:51:31.084 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 02:51:31.084 INFO [stderr] 
Dec 05 02:51:31.084 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:51:31.084 INFO [stderr]   --> src/main.rs:81:13
Dec 05 02:51:31.084 INFO [stderr]    |
Dec 05 02:51:31.084 INFO [stderr] 81 |             writeln!(&mut out_handle, "--------------------");
Dec 05 02:51:31.084 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:51:31.084 INFO [stderr]    |
Dec 05 02:51:31.084 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:51:31.084 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 02:51:31.084 INFO [stderr] 
Dec 05 02:51:31.084 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:51:31.084 INFO [stderr]   --> src/main.rs:82:13
Dec 05 02:51:31.084 INFO [stderr]    |
Dec 05 02:51:31.084 INFO [stderr] 82 |             write!(&mut out_handle, "{}: ", entry.file_name().unwrap().to_str().unwrap());
Dec 05 02:51:31.084 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:51:31.084 INFO [stderr]    |
Dec 05 02:51:31.084 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:51:31.084 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 02:51:31.084 INFO [stderr] 
Dec 05 02:51:31.084 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:51:31.084 INFO [stderr]   --> src/main.rs:84:13
Dec 05 02:51:31.084 INFO [stderr]    |
Dec 05 02:51:31.084 INFO [stderr] 84 |             writeln!(&mut out_handle, "FAILED");
Dec 05 02:51:31.084 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:51:31.084 INFO [stderr]    |
Dec 05 02:51:31.084 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:51:31.084 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 02:51:31.084 INFO [stderr] 
Dec 05 02:51:31.084 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:51:31.084 INFO [stderr]   --> src/main.rs:88:19
Dec 05 02:51:31.084 INFO [stderr]    |
Dec 05 02:51:31.084 INFO [stderr] 88 |                   writeln!(&mut out_handle, "Compilation was supposed to fail, but it succeeded.");
Dec 05 02:51:31.084 INFO [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:51:31.084 INFO [stderr]    |
Dec 05 02:51:31.084 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:51:31.084 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 02:51:31.084 INFO [stderr] 
Dec 05 02:51:31.084 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:51:31.084 INFO [stderr]   --> src/main.rs:91:19
Dec 05 02:51:31.084 INFO [stderr]    |
Dec 05 02:51:31.084 INFO [stderr] 91 |                   writeln!(&mut out_handle, "Compilation was supposed to succeed, but it failed:");
Dec 05 02:51:31.084 INFO [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:51:31.084 INFO [stderr]    |
Dec 05 02:51:31.084 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:51:31.084 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 02:51:31.084 INFO [stderr] 
Dec 05 02:51:31.084 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:51:31.084 INFO [stderr]   --> src/main.rs:92:19
Dec 05 02:51:31.084 INFO [stderr]    |
Dec 05 02:51:31.084 INFO [stderr] 92 |                   writeln!(&mut out_handle, "```");
Dec 05 02:51:31.084 INFO [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:51:31.084 INFO [stderr]    |
Dec 05 02:51:31.084 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:51:31.084 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 02:51:31.084 INFO [stderr] 
Dec 05 02:51:31.084 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:51:31.084 INFO [stderr]   --> src/main.rs:93:19
Dec 05 02:51:31.084 INFO [stderr]    |
Dec 05 02:51:31.084 INFO [stderr] 93 |                   writeln!(&mut out_handle, "{}", String::from_utf8_lossy(&tc_output.stderr));
Dec 05 02:51:31.084 INFO [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:51:31.084 INFO [stderr]    |
Dec 05 02:51:31.084 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:51:31.084 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 02:51:31.084 INFO [stderr] 
Dec 05 02:51:31.084 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:51:31.084 INFO [stderr]   --> src/main.rs:94:19
Dec 05 02:51:31.084 INFO [stderr]    |
Dec 05 02:51:31.084 INFO [stderr] 94 |                   writeln!(&mut out_handle, "```");
Dec 05 02:51:31.084 INFO [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:51:31.084 INFO [stderr]    |
Dec 05 02:51:31.084 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:51:31.085 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 02:51:31.085 INFO [stderr] 
Dec 05 02:51:31.085 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:51:31.085 INFO [stderr]    --> src/main.rs:97:19
Dec 05 02:51:31.085 INFO [stderr]     |
Dec 05 02:51:31.085 INFO [stderr] 97  | /                   writeln!(
Dec 05 02:51:31.085 INFO [stderr] 98  | |                      &mut out_handle,
Dec 05 02:51:31.085 INFO [stderr] 99  | |                      "Compiled OK, but execution of the program produced a different result than expected:"
Dec 05 02:51:31.085 INFO [stderr] 100 | |                   );
Dec 05 02:51:31.085 INFO [stderr]     | |____________________^
Dec 05 02:51:31.085 INFO [stderr]     |
Dec 05 02:51:31.085 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:51:31.085 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 02:51:31.085 INFO [stderr] 
Dec 05 02:51:31.085 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:51:31.085 INFO [stderr]    --> src/main.rs:101:19
Dec 05 02:51:31.085 INFO [stderr]     |
Dec 05 02:51:31.085 INFO [stderr] 101 |                   writeln!(&mut out_handle, "```");
Dec 05 02:51:31.085 INFO [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:51:31.085 INFO [stderr]     |
Dec 05 02:51:31.085 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:51:31.085 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 02:51:31.085 INFO [stderr] 
Dec 05 02:51:31.085 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:51:31.085 INFO [stderr]    --> src/main.rs:103:19
Dec 05 02:51:31.085 INFO [stderr]     |
Dec 05 02:51:31.085 INFO [stderr] 103 |                   writeln!(&mut out_handle, "```");
Dec 05 02:51:31.085 INFO [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:51:31.085 INFO [stderr]     |
Dec 05 02:51:31.085 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:51:31.085 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 02:51:31.085 INFO [stderr] 
Dec 05 02:51:31.085 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:51:31.085 INFO [stderr]    --> src/main.rs:106:19
Dec 05 02:51:31.085 INFO [stderr]     |
Dec 05 02:51:31.085 INFO [stderr] 106 | /                   writeln!(
Dec 05 02:51:31.085 INFO [stderr] 107 | |                      &mut out_handle,
Dec 05 02:51:31.085 INFO [stderr] 108 | |                      "Failed to compile, but the compilation error was different than expected:"
Dec 05 02:51:31.085 INFO [stderr] 109 | |                   );
Dec 05 02:51:31.085 INFO [stderr]     | |____________________^
Dec 05 02:51:31.085 INFO [stderr]     |
Dec 05 02:51:31.085 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:51:31.085 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 02:51:31.085 INFO [stderr] 
Dec 05 02:51:31.085 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:51:31.085 INFO [stderr]    --> src/main.rs:110:19
Dec 05 02:51:31.085 INFO [stderr]     |
Dec 05 02:51:31.085 INFO [stderr] 110 |                   writeln!(&mut out_handle, "```");
Dec 05 02:51:31.085 INFO [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:51:31.085 INFO [stderr]     |
Dec 05 02:51:31.085 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:51:31.085 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 02:51:31.085 INFO [stderr] 
Dec 05 02:51:31.085 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:51:31.085 INFO [stderr]    --> src/main.rs:112:19
Dec 05 02:51:31.085 INFO [stderr]     |
Dec 05 02:51:31.085 INFO [stderr] 112 |                   writeln!(&mut out_handle, "```");
Dec 05 02:51:31.085 INFO [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:51:31.085 INFO [stderr]     |
Dec 05 02:51:31.085 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:51:31.085 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 02:51:31.085 INFO [stderr] 
Dec 05 02:51:31.085 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:51:31.085 INFO [stderr]    --> src/main.rs:115:13
Dec 05 02:51:31.085 INFO [stderr]     |
Dec 05 02:51:31.085 INFO [stderr] 115 |             writeln!(&mut out_handle, "--------------------");
Dec 05 02:51:31.085 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:51:31.085 INFO [stderr]     |
Dec 05 02:51:31.085 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:51:31.085 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 02:51:31.085 INFO [stderr] 
Dec 05 02:51:31.085 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:51:31.085 INFO [stderr]    --> src/main.rs:128:13
Dec 05 02:51:31.085 INFO [stderr]     |
Dec 05 02:51:31.085 INFO [stderr] 128 |             writeln!(t, "{}", x);
Dec 05 02:51:31.085 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:51:31.085 INFO [stderr]     |
Dec 05 02:51:31.085 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:51:31.085 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 02:51:31.085 INFO [stderr] 
Dec 05 02:51:31.085 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:51:31.085 INFO [stderr]    --> src/main.rs:132:13
Dec 05 02:51:31.086 INFO [stderr]     |
Dec 05 02:51:31.086 INFO [stderr] 132 |             writeln!(t, "+{}", x);
Dec 05 02:51:31.086 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:51:31.086 INFO [stderr]     |
Dec 05 02:51:31.086 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:51:31.086 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 02:51:31.086 INFO [stderr] 
Dec 05 02:51:31.086 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:51:31.086 INFO [stderr]    --> src/main.rs:136:13
Dec 05 02:51:31.086 INFO [stderr]     |
Dec 05 02:51:31.086 INFO [stderr] 136 |             writeln!(t, "-{}", x);
Dec 05 02:51:31.086 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:51:31.086 INFO [stderr]     |
Dec 05 02:51:31.086 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:51:31.086 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 02:51:31.086 INFO [stderr] 
Dec 05 02:51:31.362 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:51:31.362 INFO [stderr]   --> src/main.rs:72:13
Dec 05 02:51:31.362 INFO [stderr]    |
Dec 05 02:51:31.362 INFO [stderr] 72 |             write!(&mut out_handle, "{}: ", entry.file_name().unwrap().to_str().unwrap());
Dec 05 02:51:31.362 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:51:31.362 INFO [stderr]    |
Dec 05 02:51:31.362 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 02:51:31.363 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:51:31.363 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 02:51:31.363 INFO [stderr] 
Dec 05 02:51:31.363 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:51:31.363 INFO [stderr]   --> src/main.rs:74:13
Dec 05 02:51:31.363 INFO [stderr]    |
Dec 05 02:51:31.363 INFO [stderr] 74 |             writeln!(&mut out_handle, "ok");
Dec 05 02:51:31.363 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:51:31.363 INFO [stderr]    |
Dec 05 02:51:31.364 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:51:31.364 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 02:51:31.364 INFO [stderr] 
Dec 05 02:51:31.364 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:51:31.364 INFO [stderr]   --> src/main.rs:81:13
Dec 05 02:51:31.367 INFO [stderr]    |
Dec 05 02:51:31.367 INFO [stderr] 81 |             writeln!(&mut out_handle, "--------------------");
Dec 05 02:51:31.367 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:51:31.367 INFO [stderr]    |
Dec 05 02:51:31.367 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:51:31.367 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 02:51:31.367 INFO [stderr] 
Dec 05 02:51:31.367 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:51:31.367 INFO [stderr]   --> src/main.rs:82:13
Dec 05 02:51:31.367 INFO [stderr]    |
Dec 05 02:51:31.367 INFO [stderr] 82 |             write!(&mut out_handle, "{}: ", entry.file_name().unwrap().to_str().unwrap());
Dec 05 02:51:31.368 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:51:31.368 INFO [stderr]    |
Dec 05 02:51:31.368 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:51:31.368 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 02:51:31.368 INFO [stderr] 
Dec 05 02:51:31.368 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:51:31.368 INFO [stderr]   --> src/main.rs:84:13
Dec 05 02:51:31.368 INFO [stderr]    |
Dec 05 02:51:31.369 INFO [stderr] 84 |             writeln!(&mut out_handle, "FAILED");
Dec 05 02:51:31.369 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:51:31.369 INFO [stderr]    |
Dec 05 02:51:31.369 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:51:31.369 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 02:51:31.369 INFO [stderr] 
Dec 05 02:51:31.369 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:51:31.369 INFO [stderr]   --> src/main.rs:88:19
Dec 05 02:51:31.369 INFO [stderr]    |
Dec 05 02:51:31.370 INFO [stderr] 88 |                   writeln!(&mut out_handle, "Compilation was supposed to fail, but it succeeded.");
Dec 05 02:51:31.370 INFO [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:51:31.370 INFO [stderr]    |
Dec 05 02:51:31.370 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:51:31.370 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 02:51:31.370 INFO [stderr] 
Dec 05 02:51:31.370 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:51:31.371 INFO [stderr]   --> src/main.rs:91:19
Dec 05 02:51:31.371 INFO [stderr]    |
Dec 05 02:51:31.371 INFO [stderr] 91 |                   writeln!(&mut out_handle, "Compilation was supposed to succeed, but it failed:");
Dec 05 02:51:31.371 INFO [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:51:31.371 INFO [stderr]    |
Dec 05 02:51:31.372 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:51:31.372 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 02:51:31.372 INFO [stderr] 
Dec 05 02:51:31.372 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:51:31.372 INFO [stderr]   --> src/main.rs:92:19
Dec 05 02:51:31.372 INFO [stderr]    |
Dec 05 02:51:31.373 INFO [stderr] 92 |                   writeln!(&mut out_handle, "```");
Dec 05 02:51:31.373 INFO [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:51:31.373 INFO [stderr]    |
Dec 05 02:51:31.373 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:51:31.373 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 02:51:31.373 INFO [stderr] 
Dec 05 02:51:31.374 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:51:31.374 INFO [stderr]   --> src/main.rs:93:19
Dec 05 02:51:31.374 INFO [stderr]    |
Dec 05 02:51:31.374 INFO [stderr] 93 |                   writeln!(&mut out_handle, "{}", String::from_utf8_lossy(&tc_output.stderr));
Dec 05 02:51:31.374 INFO [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:51:31.375 INFO [stderr]    |
Dec 05 02:51:31.375 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:51:31.376 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 02:51:31.376 INFO [stderr] 
Dec 05 02:51:31.376 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:51:31.376 INFO [stderr]   --> src/main.rs:94:19
Dec 05 02:51:31.376 INFO [stderr]    |
Dec 05 02:51:31.376 INFO [stderr] 94 |                   writeln!(&mut out_handle, "```");
Dec 05 02:51:31.376 INFO [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:51:31.376 INFO [stderr]    |
Dec 05 02:51:31.376 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:51:31.376 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 02:51:31.376 INFO [stderr] 
Dec 05 02:51:31.376 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:51:31.376 INFO [stderr]    --> src/main.rs:97:19
Dec 05 02:51:31.376 INFO [stderr]     |
Dec 05 02:51:31.376 INFO [stderr] 97  | /                   writeln!(
Dec 05 02:51:31.376 INFO [stderr] 98  | |                      &mut out_handle,
Dec 05 02:51:31.376 INFO [stderr] 99  | |                      "Compiled OK, but execution of the program produced a different result than expected:"
Dec 05 02:51:31.376 INFO [stderr] 100 | |                   );
Dec 05 02:51:31.376 INFO [stderr]     | |____________________^
Dec 05 02:51:31.376 INFO [stderr]     |
Dec 05 02:51:31.376 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:51:31.376 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 02:51:31.376 INFO [stderr] 
Dec 05 02:51:31.376 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:51:31.376 INFO [stderr]    --> src/main.rs:101:19
Dec 05 02:51:31.376 INFO [stderr]     |
Dec 05 02:51:31.376 INFO [stderr] 101 |                   writeln!(&mut out_handle, "```");
Dec 05 02:51:31.376 INFO [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:51:31.376 INFO [stderr]     |
Dec 05 02:51:31.376 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:51:31.376 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 02:51:31.376 INFO [stderr] 
Dec 05 02:51:31.376 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:51:31.376 INFO [stderr]    --> src/main.rs:103:19
Dec 05 02:51:31.376 INFO [stderr]     |
Dec 05 02:51:31.376 INFO [stderr] 103 |                   writeln!(&mut out_handle, "```");
Dec 05 02:51:31.376 INFO [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:51:31.376 INFO [stderr]     |
Dec 05 02:51:31.376 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:51:31.376 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 02:51:31.376 INFO [stderr] 
Dec 05 02:51:31.376 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:51:31.376 INFO [stderr]    --> src/main.rs:106:19
Dec 05 02:51:31.376 INFO [stderr]     |
Dec 05 02:51:31.376 INFO [stderr] 106 | /                   writeln!(
Dec 05 02:51:31.376 INFO [stderr] 107 | |                      &mut out_handle,
Dec 05 02:51:31.376 INFO [stderr] 108 | |                      "Failed to compile, but the compilation error was different than expected:"
Dec 05 02:51:31.376 INFO [stderr] 109 | |                   );
Dec 05 02:51:31.376 INFO [stderr]     | |____________________^
Dec 05 02:51:31.376 INFO [stderr]     |
Dec 05 02:51:31.376 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:51:31.376 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 02:51:31.376 INFO [stderr] 
Dec 05 02:51:31.376 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:51:31.376 INFO [stderr]    --> src/main.rs:110:19
Dec 05 02:51:31.376 INFO [stderr]     |
Dec 05 02:51:31.376 INFO [stderr] 110 |                   writeln!(&mut out_handle, "```");
Dec 05 02:51:31.376 INFO [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:51:31.376 INFO [stderr]     |
Dec 05 02:51:31.376 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:51:31.376 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 02:51:31.376 INFO [stderr] 
Dec 05 02:51:31.376 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:51:31.376 INFO [stderr]    --> src/main.rs:112:19
Dec 05 02:51:31.376 INFO [stderr]     |
Dec 05 02:51:31.376 INFO [stderr] 112 |                   writeln!(&mut out_handle, "```");
Dec 05 02:51:31.376 INFO [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:51:31.376 INFO [stderr]     |
Dec 05 02:51:31.376 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:51:31.376 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 02:51:31.376 INFO [stderr] 
Dec 05 02:51:31.376 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:51:31.376 INFO [stderr]    --> src/main.rs:115:13
Dec 05 02:51:31.376 INFO [stderr]     |
Dec 05 02:51:31.376 INFO [stderr] 115 |             writeln!(&mut out_handle, "--------------------");
Dec 05 02:51:31.376 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:51:31.376 INFO [stderr]     |
Dec 05 02:51:31.376 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:51:31.376 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 02:51:31.376 INFO [stderr] 
Dec 05 02:51:31.376 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:51:31.376 INFO [stderr]    --> src/main.rs:128:13
Dec 05 02:51:31.376 INFO [stderr]     |
Dec 05 02:51:31.376 INFO [stderr] 128 |             writeln!(t, "{}", x);
Dec 05 02:51:31.376 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:51:31.376 INFO [stderr]     |
Dec 05 02:51:31.376 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:51:31.376 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 02:51:31.376 INFO [stderr] 
Dec 05 02:51:31.377 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:51:31.377 INFO [stderr]    --> src/main.rs:132:13
Dec 05 02:51:31.377 INFO [stderr]     |
Dec 05 02:51:31.377 INFO [stderr] 132 |             writeln!(t, "+{}", x);
Dec 05 02:51:31.377 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:51:31.377 INFO [stderr]     |
Dec 05 02:51:31.377 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:51:31.377 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 02:51:31.377 INFO [stderr] 
Dec 05 02:51:31.377 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 02:51:31.377 INFO [stderr]    --> src/main.rs:136:13
Dec 05 02:51:31.377 INFO [stderr]     |
Dec 05 02:51:31.377 INFO [stderr] 136 |             writeln!(t, "-{}", x);
Dec 05 02:51:31.377 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:51:31.377 INFO [stderr]     |
Dec 05 02:51:31.377 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 02:51:31.377 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 02:51:31.377 INFO [stderr] 
Dec 05 02:51:31.407 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.31s
Dec 05 02:51:31.411 INFO [stderr] su: No module specific data is present
Dec 05 02:51:32.051 INFO running `"docker" "inspect" "976c27091258fc4ee59936d2c7f981815981f758892d58e0ac901c00261fc835"`
Dec 05 02:51:32.341 INFO running `"docker" "rm" "-f" "976c27091258fc4ee59936d2c7f981815981f758892d58e0ac901c00261fc835"`
Dec 05 02:51:32.675 INFO [stdout] 976c27091258fc4ee59936d2c7f981815981f758892d58e0ac901c00261fc835