Nov 28 13:57:51.652 INFO checking DenialAdams/t_test_runner against master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5 for pr-56074
Nov 28 13:57:51.652 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-7/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56074/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/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 +0b9f19dff1347e29bf4362ab5a8fab84b43023b5-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"`
Nov 28 13:57:52.020 INFO [stdout] 193c37d60ef219bc9920a23cf1b7c435030635e96cd38cca7114ed9be4dd9540
Nov 28 13:57:52.021 INFO running `"docker" "start" "-a" "193c37d60ef219bc9920a23cf1b7c435030635e96cd38cca7114ed9be4dd9540"`
Nov 28 13:57:53.424 INFO [stderr] usermod: no changes
Nov 28 13:57:53.564 INFO [stderr]     Checking os_pipe v0.8.0
Nov 28 13:57:54.575 INFO [stderr]     Checking test_runner v0.3.0 (/source)
Nov 28 13:57:56.678 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 13:57:56.678 INFO [stderr]   --> src/main.rs:72:13
Nov 28 13:57:56.678 INFO [stderr]    |
Nov 28 13:57:56.678 INFO [stderr] 72 |             write!(&mut out_handle, "{}: ", entry.file_name().unwrap().to_str().unwrap());
Nov 28 13:57:56.678 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 13:57:56.678 INFO [stderr]    |
Nov 28 13:57:56.678 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 28 13:57:56.678 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 13:57:56.678 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)
Nov 28 13:57:56.678 INFO [stderr] 
Nov 28 13:57:56.689 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 13:57:56.689 INFO [stderr]   --> src/main.rs:74:13
Nov 28 13:57:56.689 INFO [stderr]    |
Nov 28 13:57:56.689 INFO [stderr] 74 |             writeln!(&mut out_handle, "ok");
Nov 28 13:57:56.689 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 13:57:56.689 INFO [stderr]    |
Nov 28 13:57:56.689 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 13:57:56.689 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)
Nov 28 13:57:56.689 INFO [stderr] 
Nov 28 13:57:56.689 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 13:57:56.689 INFO [stderr]   --> src/main.rs:81:13
Nov 28 13:57:56.689 INFO [stderr]    |
Nov 28 13:57:56.689 INFO [stderr] 81 |             writeln!(&mut out_handle, "--------------------");
Nov 28 13:57:56.689 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 13:57:56.689 INFO [stderr]    |
Nov 28 13:57:56.689 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 13:57:56.690 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)
Nov 28 13:57:56.690 INFO [stderr] 
Nov 28 13:57:56.690 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 13:57:56.690 INFO [stderr]   --> src/main.rs:82:13
Nov 28 13:57:56.690 INFO [stderr]    |
Nov 28 13:57:56.690 INFO [stderr] 82 |             write!(&mut out_handle, "{}: ", entry.file_name().unwrap().to_str().unwrap());
Nov 28 13:57:56.690 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 13:57:56.690 INFO [stderr]    |
Nov 28 13:57:56.690 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 13:57:56.690 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)
Nov 28 13:57:56.690 INFO [stderr] 
Nov 28 13:57:56.690 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 13:57:56.690 INFO [stderr]   --> src/main.rs:84:13
Nov 28 13:57:56.690 INFO [stderr]    |
Nov 28 13:57:56.690 INFO [stderr] 84 |             writeln!(&mut out_handle, "FAILED");
Nov 28 13:57:56.690 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 13:57:56.690 INFO [stderr]    |
Nov 28 13:57:56.690 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 13:57:56.690 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)
Nov 28 13:57:56.690 INFO [stderr] 
Nov 28 13:57:56.690 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 13:57:56.690 INFO [stderr]   --> src/main.rs:88:19
Nov 28 13:57:56.690 INFO [stderr]    |
Nov 28 13:57:56.690 INFO [stderr] 88 |                   writeln!(&mut out_handle, "Compilation was supposed to fail, but it succeeded.");
Nov 28 13:57:56.690 INFO [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 13:57:56.690 INFO [stderr]    |
Nov 28 13:57:56.690 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 13:57:56.690 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)
Nov 28 13:57:56.690 INFO [stderr] 
Nov 28 13:57:56.690 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 13:57:56.690 INFO [stderr]   --> src/main.rs:91:19
Nov 28 13:57:56.690 INFO [stderr]    |
Nov 28 13:57:56.690 INFO [stderr] 91 |                   writeln!(&mut out_handle, "Compilation was supposed to succeed, but it failed:");
Nov 28 13:57:56.690 INFO [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 13:57:56.690 INFO [stderr]    |
Nov 28 13:57:56.690 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 13:57:56.690 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)
Nov 28 13:57:56.690 INFO [stderr] 
Nov 28 13:57:56.690 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 13:57:56.690 INFO [stderr]   --> src/main.rs:92:19
Nov 28 13:57:56.690 INFO [stderr]    |
Nov 28 13:57:56.690 INFO [stderr] 92 |                   writeln!(&mut out_handle, "```");
Nov 28 13:57:56.690 INFO [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 13:57:56.690 INFO [stderr]    |
Nov 28 13:57:56.690 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 13:57:56.690 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)
Nov 28 13:57:56.690 INFO [stderr] 
Nov 28 13:57:56.690 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 13:57:56.690 INFO [stderr]   --> src/main.rs:93:19
Nov 28 13:57:56.690 INFO [stderr]    |
Nov 28 13:57:56.690 INFO [stderr] 93 |                   writeln!(&mut out_handle, "{}", String::from_utf8_lossy(&tc_output.stderr));
Nov 28 13:57:56.690 INFO [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 13:57:56.690 INFO [stderr]    |
Nov 28 13:57:56.690 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 13:57:56.690 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)
Nov 28 13:57:56.690 INFO [stderr] 
Nov 28 13:57:56.690 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 13:57:56.690 INFO [stderr]   --> src/main.rs:94:19
Nov 28 13:57:56.690 INFO [stderr]    |
Nov 28 13:57:56.690 INFO [stderr] 94 |                   writeln!(&mut out_handle, "```");
Nov 28 13:57:56.690 INFO [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 13:57:56.690 INFO [stderr]    |
Nov 28 13:57:56.690 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 13:57:56.690 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)
Nov 28 13:57:56.690 INFO [stderr] 
Nov 28 13:57:56.690 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 13:57:56.690 INFO [stderr]    --> src/main.rs:97:19
Nov 28 13:57:56.690 INFO [stderr]     |
Nov 28 13:57:56.690 INFO [stderr] 97  | /                   writeln!(
Nov 28 13:57:56.690 INFO [stderr] 98  | |                      &mut out_handle,
Nov 28 13:57:56.690 INFO [stderr] 99  | |                      "Compiled OK, but execution of the program produced a different result than expected:"
Nov 28 13:57:56.690 INFO [stderr] 100 | |                   );
Nov 28 13:57:56.690 INFO [stderr]     | |____________________^
Nov 28 13:57:56.690 INFO [stderr]     |
Nov 28 13:57:56.690 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 13:57:56.690 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)
Nov 28 13:57:56.690 INFO [stderr] 
Nov 28 13:57:56.690 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 13:57:56.690 INFO [stderr]    --> src/main.rs:101:19
Nov 28 13:57:56.690 INFO [stderr]     |
Nov 28 13:57:56.691 INFO [stderr] 101 |                   writeln!(&mut out_handle, "```");
Nov 28 13:57:56.691 INFO [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 13:57:56.691 INFO [stderr]     |
Nov 28 13:57:56.691 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 13:57:56.691 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)
Nov 28 13:57:56.691 INFO [stderr] 
Nov 28 13:57:56.691 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 13:57:56.691 INFO [stderr]    --> src/main.rs:103:19
Nov 28 13:57:56.691 INFO [stderr]     |
Nov 28 13:57:56.691 INFO [stderr] 103 |                   writeln!(&mut out_handle, "```");
Nov 28 13:57:56.691 INFO [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 13:57:56.691 INFO [stderr]     |
Nov 28 13:57:56.691 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 13:57:56.691 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)
Nov 28 13:57:56.691 INFO [stderr] 
Nov 28 13:57:56.691 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 13:57:56.691 INFO [stderr]    --> src/main.rs:106:19
Nov 28 13:57:56.691 INFO [stderr]     |
Nov 28 13:57:56.691 INFO [stderr] 106 | /                   writeln!(
Nov 28 13:57:56.691 INFO [stderr] 107 | |                      &mut out_handle,
Nov 28 13:57:56.691 INFO [stderr] 108 | |                      "Failed to compile, but the compilation error was different than expected:"
Nov 28 13:57:56.691 INFO [stderr] 109 | |                   );
Nov 28 13:57:56.691 INFO [stderr]     | |____________________^
Nov 28 13:57:56.691 INFO [stderr]     |
Nov 28 13:57:56.691 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 13:57:56.691 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)
Nov 28 13:57:56.691 INFO [stderr] 
Nov 28 13:57:56.691 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 13:57:56.691 INFO [stderr]    --> src/main.rs:110:19
Nov 28 13:57:56.691 INFO [stderr]     |
Nov 28 13:57:56.691 INFO [stderr] 110 |                   writeln!(&mut out_handle, "```");
Nov 28 13:57:56.691 INFO [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 13:57:56.691 INFO [stderr]     |
Nov 28 13:57:56.691 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 13:57:56.691 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)
Nov 28 13:57:56.691 INFO [stderr] 
Nov 28 13:57:56.691 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 13:57:56.691 INFO [stderr]    --> src/main.rs:112:19
Nov 28 13:57:56.691 INFO [stderr]     |
Nov 28 13:57:56.691 INFO [stderr] 112 |                   writeln!(&mut out_handle, "```");
Nov 28 13:57:56.691 INFO [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 13:57:56.691 INFO [stderr]     |
Nov 28 13:57:56.691 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 13:57:56.691 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)
Nov 28 13:57:56.691 INFO [stderr] 
Nov 28 13:57:56.691 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 13:57:56.691 INFO [stderr]    --> src/main.rs:115:13
Nov 28 13:57:56.691 INFO [stderr]     |
Nov 28 13:57:56.691 INFO [stderr] 115 |             writeln!(&mut out_handle, "--------------------");
Nov 28 13:57:56.691 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 13:57:56.691 INFO [stderr]     |
Nov 28 13:57:56.691 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 13:57:56.691 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)
Nov 28 13:57:56.691 INFO [stderr] 
Nov 28 13:57:56.691 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 13:57:56.691 INFO [stderr]    --> src/main.rs:128:13
Nov 28 13:57:56.691 INFO [stderr]     |
Nov 28 13:57:56.691 INFO [stderr] 128 |             writeln!(t, "{}", x);
Nov 28 13:57:56.691 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^
Nov 28 13:57:56.691 INFO [stderr]     |
Nov 28 13:57:56.691 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 13:57:56.691 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)
Nov 28 13:57:56.691 INFO [stderr] 
Nov 28 13:57:56.691 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 13:57:56.691 INFO [stderr]    --> src/main.rs:132:13
Nov 28 13:57:56.691 INFO [stderr]     |
Nov 28 13:57:56.691 INFO [stderr] 132 |             writeln!(t, "+{}", x);
Nov 28 13:57:56.691 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^
Nov 28 13:57:56.691 INFO [stderr]     |
Nov 28 13:57:56.691 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 13:57:56.691 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)
Nov 28 13:57:56.691 INFO [stderr] 
Nov 28 13:57:56.691 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 13:57:56.691 INFO [stderr]    --> src/main.rs:136:13
Nov 28 13:57:56.691 INFO [stderr]     |
Nov 28 13:57:56.691 INFO [stderr] 136 |             writeln!(t, "-{}", x);
Nov 28 13:57:56.691 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^
Nov 28 13:57:56.691 INFO [stderr]     |
Nov 28 13:57:56.691 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 13:57:56.692 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)
Nov 28 13:57:56.692 INFO [stderr] 
Nov 28 13:57:56.708 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 13:57:56.708 INFO [stderr]   --> src/main.rs:72:13
Nov 28 13:57:56.708 INFO [stderr]    |
Nov 28 13:57:56.708 INFO [stderr] 72 |             write!(&mut out_handle, "{}: ", entry.file_name().unwrap().to_str().unwrap());
Nov 28 13:57:56.708 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 13:57:56.720 INFO [stderr]    |
Nov 28 13:57:56.720 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 28 13:57:56.720 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 13:57:56.720 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)
Nov 28 13:57:56.720 INFO [stderr] 
Nov 28 13:57:56.720 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 13:57:56.721 INFO [stderr]   --> src/main.rs:74:13
Nov 28 13:57:56.721 INFO [stderr]    |
Nov 28 13:57:56.721 INFO [stderr] 74 |             writeln!(&mut out_handle, "ok");
Nov 28 13:57:56.721 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 13:57:56.721 INFO [stderr]    |
Nov 28 13:57:56.721 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 13:57:56.721 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)
Nov 28 13:57:56.721 INFO [stderr] 
Nov 28 13:57:56.721 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 13:57:56.721 INFO [stderr]   --> src/main.rs:81:13
Nov 28 13:57:56.721 INFO [stderr]    |
Nov 28 13:57:56.721 INFO [stderr] 81 |             writeln!(&mut out_handle, "--------------------");
Nov 28 13:57:56.721 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 13:57:56.721 INFO [stderr]    |
Nov 28 13:57:56.721 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 13:57:56.721 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)
Nov 28 13:57:56.721 INFO [stderr] 
Nov 28 13:57:56.721 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 13:57:56.722 INFO [stderr]   --> src/main.rs:82:13
Nov 28 13:57:56.722 INFO [stderr]    |
Nov 28 13:57:56.722 INFO [stderr] 82 |             write!(&mut out_handle, "{}: ", entry.file_name().unwrap().to_str().unwrap());
Nov 28 13:57:56.722 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 13:57:56.722 INFO [stderr]    |
Nov 28 13:57:56.722 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 13:57:56.722 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)
Nov 28 13:57:56.722 INFO [stderr] 
Nov 28 13:57:56.722 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 13:57:56.722 INFO [stderr]   --> src/main.rs:84:13
Nov 28 13:57:56.722 INFO [stderr]    |
Nov 28 13:57:56.722 INFO [stderr] 84 |             writeln!(&mut out_handle, "FAILED");
Nov 28 13:57:56.722 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 13:57:56.722 INFO [stderr]    |
Nov 28 13:57:56.722 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 13:57:56.722 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)
Nov 28 13:57:56.722 INFO [stderr] 
Nov 28 13:57:56.723 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 13:57:56.723 INFO [stderr]   --> src/main.rs:88:19
Nov 28 13:57:56.723 INFO [stderr]    |
Nov 28 13:57:56.723 INFO [stderr] 88 |                   writeln!(&mut out_handle, "Compilation was supposed to fail, but it succeeded.");
Nov 28 13:57:56.723 INFO [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 13:57:56.723 INFO [stderr]    |
Nov 28 13:57:56.723 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 13:57:56.723 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)
Nov 28 13:57:56.723 INFO [stderr] 
Nov 28 13:57:56.723 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 13:57:56.723 INFO [stderr]   --> src/main.rs:91:19
Nov 28 13:57:56.723 INFO [stderr]    |
Nov 28 13:57:56.723 INFO [stderr] 91 |                   writeln!(&mut out_handle, "Compilation was supposed to succeed, but it failed:");
Nov 28 13:57:56.723 INFO [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 13:57:56.723 INFO [stderr]    |
Nov 28 13:57:56.723 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 13:57:56.723 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)
Nov 28 13:57:56.723 INFO [stderr] 
Nov 28 13:57:56.724 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 13:57:56.724 INFO [stderr]   --> src/main.rs:92:19
Nov 28 13:57:56.724 INFO [stderr]    |
Nov 28 13:57:56.724 INFO [stderr] 92 |                   writeln!(&mut out_handle, "```");
Nov 28 13:57:56.724 INFO [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 13:57:56.724 INFO [stderr]    |
Nov 28 13:57:56.724 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 13:57:56.724 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)
Nov 28 13:57:56.724 INFO [stderr] 
Nov 28 13:57:56.724 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 13:57:56.724 INFO [stderr]   --> src/main.rs:93:19
Nov 28 13:57:56.724 INFO [stderr]    |
Nov 28 13:57:56.724 INFO [stderr] 93 |                   writeln!(&mut out_handle, "{}", String::from_utf8_lossy(&tc_output.stderr));
Nov 28 13:57:56.724 INFO [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 13:57:56.724 INFO [stderr]    |
Nov 28 13:57:56.724 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 13:57:56.724 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)
Nov 28 13:57:56.724 INFO [stderr] 
Nov 28 13:57:56.725 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 13:57:56.725 INFO [stderr]   --> src/main.rs:94:19
Nov 28 13:57:56.725 INFO [stderr]    |
Nov 28 13:57:56.725 INFO [stderr] 94 |                   writeln!(&mut out_handle, "```");
Nov 28 13:57:56.725 INFO [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 13:57:56.725 INFO [stderr]    |
Nov 28 13:57:56.725 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 13:57:56.725 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)
Nov 28 13:57:56.725 INFO [stderr] 
Nov 28 13:57:56.725 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 13:57:56.725 INFO [stderr]    --> src/main.rs:97:19
Nov 28 13:57:56.725 INFO [stderr]     |
Nov 28 13:57:56.725 INFO [stderr] 97  | /                   writeln!(
Nov 28 13:57:56.725 INFO [stderr] 98  | |                      &mut out_handle,
Nov 28 13:57:56.725 INFO [stderr] 99  | |                      "Compiled OK, but execution of the program produced a different result than expected:"
Nov 28 13:57:56.725 INFO [stderr] 100 | |                   );
Nov 28 13:57:56.725 INFO [stderr]     | |____________________^
Nov 28 13:57:56.725 INFO [stderr]     |
Nov 28 13:57:56.725 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 13:57:56.725 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)
Nov 28 13:57:56.725 INFO [stderr] 
Nov 28 13:57:56.726 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 13:57:56.726 INFO [stderr]    --> src/main.rs:101:19
Nov 28 13:57:56.726 INFO [stderr]     |
Nov 28 13:57:56.726 INFO [stderr] 101 |                   writeln!(&mut out_handle, "```");
Nov 28 13:57:56.726 INFO [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 13:57:56.726 INFO [stderr]     |
Nov 28 13:57:56.726 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 13:57:56.726 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)
Nov 28 13:57:56.726 INFO [stderr] 
Nov 28 13:57:56.726 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 13:57:56.726 INFO [stderr]    --> src/main.rs:103:19
Nov 28 13:57:56.726 INFO [stderr]     |
Nov 28 13:57:56.726 INFO [stderr] 103 |                   writeln!(&mut out_handle, "```");
Nov 28 13:57:56.726 INFO [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 13:57:56.726 INFO [stderr]     |
Nov 28 13:57:56.726 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 13:57:56.726 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)
Nov 28 13:57:56.727 INFO [stderr] 
Nov 28 13:57:56.727 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 13:57:56.727 INFO [stderr]    --> src/main.rs:106:19
Nov 28 13:57:56.727 INFO [stderr]     |
Nov 28 13:57:56.727 INFO [stderr] 106 | /                   writeln!(
Nov 28 13:57:56.727 INFO [stderr] 107 | |                      &mut out_handle,
Nov 28 13:57:56.727 INFO [stderr] 108 | |                      "Failed to compile, but the compilation error was different than expected:"
Nov 28 13:57:56.727 INFO [stderr] 109 | |                   );
Nov 28 13:57:56.727 INFO [stderr]     | |____________________^
Nov 28 13:57:56.727 INFO [stderr]     |
Nov 28 13:57:56.727 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 13:57:56.727 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)
Nov 28 13:57:56.727 INFO [stderr] 
Nov 28 13:57:56.727 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 13:57:56.727 INFO [stderr]    --> src/main.rs:110:19
Nov 28 13:57:56.727 INFO [stderr]     |
Nov 28 13:57:56.727 INFO [stderr] 110 |                   writeln!(&mut out_handle, "```");
Nov 28 13:57:56.727 INFO [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 13:57:56.727 INFO [stderr]     |
Nov 28 13:57:56.727 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 13:57:56.727 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)
Nov 28 13:57:56.727 INFO [stderr] 
Nov 28 13:57:56.728 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 13:57:56.728 INFO [stderr]    --> src/main.rs:112:19
Nov 28 13:57:56.728 INFO [stderr]     |
Nov 28 13:57:56.728 INFO [stderr] 112 |                   writeln!(&mut out_handle, "```");
Nov 28 13:57:56.728 INFO [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 13:57:56.728 INFO [stderr]     |
Nov 28 13:57:56.728 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 13:57:56.728 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)
Nov 28 13:57:56.728 INFO [stderr] 
Nov 28 13:57:56.732 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 13:57:56.732 INFO [stderr]    --> src/main.rs:115:13
Nov 28 13:57:56.732 INFO [stderr]     |
Nov 28 13:57:56.732 INFO [stderr] 115 |             writeln!(&mut out_handle, "--------------------");
Nov 28 13:57:56.732 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 13:57:56.732 INFO [stderr]     |
Nov 28 13:57:56.732 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 13:57:56.732 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)
Nov 28 13:57:56.732 INFO [stderr] 
Nov 28 13:57:56.732 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 13:57:56.732 INFO [stderr]    --> src/main.rs:128:13
Nov 28 13:57:56.732 INFO [stderr]     |
Nov 28 13:57:56.732 INFO [stderr] 128 |             writeln!(t, "{}", x);
Nov 28 13:57:56.732 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^
Nov 28 13:57:56.732 INFO [stderr]     |
Nov 28 13:57:56.732 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 13:57:56.732 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)
Nov 28 13:57:56.732 INFO [stderr] 
Nov 28 13:57:56.732 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 13:57:56.732 INFO [stderr]    --> src/main.rs:132:13
Nov 28 13:57:56.732 INFO [stderr]     |
Nov 28 13:57:56.732 INFO [stderr] 132 |             writeln!(t, "+{}", x);
Nov 28 13:57:56.732 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^
Nov 28 13:57:56.732 INFO [stderr]     |
Nov 28 13:57:56.732 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 13:57:56.733 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)
Nov 28 13:57:56.733 INFO [stderr] 
Nov 28 13:57:56.733 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 13:57:56.733 INFO [stderr]    --> src/main.rs:136:13
Nov 28 13:57:56.733 INFO [stderr]     |
Nov 28 13:57:56.733 INFO [stderr] 136 |             writeln!(t, "-{}", x);
Nov 28 13:57:56.733 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^
Nov 28 13:57:56.733 INFO [stderr]     |
Nov 28 13:57:56.733 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 13:57:56.733 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)
Nov 28 13:57:56.733 INFO [stderr] 
Nov 28 13:57:56.752 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.29s
Nov 28 13:57:56.764 INFO [stderr] su: No module specific data is present
Nov 28 13:57:57.876 INFO running `"docker" "inspect" "193c37d60ef219bc9920a23cf1b7c435030635e96cd38cca7114ed9be4dd9540"`
Nov 28 13:57:58.190 INFO running `"docker" "rm" "-f" "193c37d60ef219bc9920a23cf1b7c435030635e96cd38cca7114ed9be4dd9540"`
Nov 28 13:57:58.440 INFO [stdout] 193c37d60ef219bc9920a23cf1b7c435030635e96cd38cca7114ed9be4dd9540