Nov 17 15:55:25.623 INFO testing DenialAdams/t_test_runner against try#2e026d6e5d7621634147ad4c8074f1d964dbb1be for pr-55982
Nov 17 15:55:25.623 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-4/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-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"`
Nov 17 15:55:25.943 INFO [stdout] 05edbb7b93851e7a5929c696b271696f5a131fed59e6520252b1710d217d6ff2
Nov 17 15:55:25.945 INFO running `"docker" "start" "-a" "05edbb7b93851e7a5929c696b271696f5a131fed59e6520252b1710d217d6ff2"`
Nov 17 15:55:26.469 INFO [stderr] usermod: no changes
Nov 17 15:55:26.584 INFO [stderr]    Compiling os_pipe v0.8.0
Nov 17 15:55:27.312 INFO [stderr]    Compiling test_runner v0.3.0 (/source)
Nov 17 15:55:28.407 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 15:55:28.407 INFO [stderr]   --> src/main.rs:72:13
Nov 17 15:55:28.407 INFO [stderr]    |
Nov 17 15:55:28.407 INFO [stderr] 72 |             write!(&mut out_handle, "{}: ", entry.file_name().unwrap().to_str().unwrap());
Nov 17 15:55:28.407 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:55:28.407 INFO [stderr]    |
Nov 17 15:55:28.407 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 17 15:55:28.407 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 15:55:28.407 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 17 15:55:28.407 INFO [stderr] 
Nov 17 15:55:28.407 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 15:55:28.407 INFO [stderr]   --> src/main.rs:74:13
Nov 17 15:55:28.407 INFO [stderr]    |
Nov 17 15:55:28.407 INFO [stderr] 74 |             writeln!(&mut out_handle, "ok");
Nov 17 15:55:28.407 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:55:28.407 INFO [stderr]    |
Nov 17 15:55:28.407 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 15:55:28.407 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 17 15:55:28.407 INFO [stderr] 
Nov 17 15:55:28.407 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 15:55:28.407 INFO [stderr]   --> src/main.rs:81:13
Nov 17 15:55:28.407 INFO [stderr]    |
Nov 17 15:55:28.407 INFO [stderr] 81 |             writeln!(&mut out_handle, "--------------------");
Nov 17 15:55:28.407 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:55:28.407 INFO [stderr]    |
Nov 17 15:55:28.407 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 15:55:28.407 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 17 15:55:28.407 INFO [stderr] 
Nov 17 15:55:28.407 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 15:55:28.407 INFO [stderr]   --> src/main.rs:82:13
Nov 17 15:55:28.407 INFO [stderr]    |
Nov 17 15:55:28.407 INFO [stderr] 82 |             write!(&mut out_handle, "{}: ", entry.file_name().unwrap().to_str().unwrap());
Nov 17 15:55:28.407 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:55:28.407 INFO [stderr]    |
Nov 17 15:55:28.407 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 15:55:28.407 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 17 15:55:28.407 INFO [stderr] 
Nov 17 15:55:28.407 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 15:55:28.407 INFO [stderr]   --> src/main.rs:84:13
Nov 17 15:55:28.407 INFO [stderr]    |
Nov 17 15:55:28.407 INFO [stderr] 84 |             writeln!(&mut out_handle, "FAILED");
Nov 17 15:55:28.407 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:55:28.407 INFO [stderr]    |
Nov 17 15:55:28.407 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 15:55:28.407 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 17 15:55:28.407 INFO [stderr] 
Nov 17 15:55:28.407 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 15:55:28.407 INFO [stderr]   --> src/main.rs:88:19
Nov 17 15:55:28.407 INFO [stderr]    |
Nov 17 15:55:28.407 INFO [stderr] 88 |                   writeln!(&mut out_handle, "Compilation was supposed to fail, but it succeeded.");
Nov 17 15:55:28.407 INFO [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:55:28.407 INFO [stderr]    |
Nov 17 15:55:28.407 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 15:55:28.407 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 17 15:55:28.407 INFO [stderr] 
Nov 17 15:55:28.407 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 15:55:28.408 INFO [stderr]   --> src/main.rs:91:19
Nov 17 15:55:28.408 INFO [stderr]    |
Nov 17 15:55:28.408 INFO [stderr] 91 |                   writeln!(&mut out_handle, "Compilation was supposed to succeed, but it failed:");
Nov 17 15:55:28.408 INFO [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:55:28.408 INFO [stderr]    |
Nov 17 15:55:28.408 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 15:55:28.408 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 17 15:55:28.408 INFO [stderr] 
Nov 17 15:55:28.408 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 15:55:28.408 INFO [stderr]   --> src/main.rs:92:19
Nov 17 15:55:28.408 INFO [stderr]    |
Nov 17 15:55:28.408 INFO [stderr] 92 |                   writeln!(&mut out_handle, "```");
Nov 17 15:55:28.408 INFO [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:55:28.408 INFO [stderr]    |
Nov 17 15:55:28.408 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 15:55:28.408 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 17 15:55:28.408 INFO [stderr] 
Nov 17 15:55:28.408 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 15:55:28.408 INFO [stderr]   --> src/main.rs:93:19
Nov 17 15:55:28.408 INFO [stderr]    |
Nov 17 15:55:28.408 INFO [stderr] 93 |                   writeln!(&mut out_handle, "{}", String::from_utf8_lossy(&tc_output.stderr));
Nov 17 15:55:28.408 INFO [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:55:28.408 INFO [stderr]    |
Nov 17 15:55:28.408 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 15:55:28.408 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 17 15:55:28.408 INFO [stderr] 
Nov 17 15:55:28.408 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 15:55:28.408 INFO [stderr]   --> src/main.rs:94:19
Nov 17 15:55:28.408 INFO [stderr]    |
Nov 17 15:55:28.408 INFO [stderr] 94 |                   writeln!(&mut out_handle, "```");
Nov 17 15:55:28.408 INFO [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:55:28.408 INFO [stderr]    |
Nov 17 15:55:28.408 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 15:55:28.408 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 17 15:55:28.408 INFO [stderr] 
Nov 17 15:55:28.408 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 15:55:28.408 INFO [stderr]    --> src/main.rs:97:19
Nov 17 15:55:28.408 INFO [stderr]     |
Nov 17 15:55:28.408 INFO [stderr] 97  | /                   writeln!(
Nov 17 15:55:28.408 INFO [stderr] 98  | |                      &mut out_handle,
Nov 17 15:55:28.408 INFO [stderr] 99  | |                      "Compiled OK, but execution of the program produced a different result than expected:"
Nov 17 15:55:28.408 INFO [stderr] 100 | |                   );
Nov 17 15:55:28.408 INFO [stderr]     | |____________________^
Nov 17 15:55:28.408 INFO [stderr]     |
Nov 17 15:55:28.408 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 15:55:28.408 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 17 15:55:28.408 INFO [stderr] 
Nov 17 15:55:28.408 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 15:55:28.408 INFO [stderr]    --> src/main.rs:101:19
Nov 17 15:55:28.408 INFO [stderr]     |
Nov 17 15:55:28.408 INFO [stderr] 101 |                   writeln!(&mut out_handle, "```");
Nov 17 15:55:28.408 INFO [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:55:28.408 INFO [stderr]     |
Nov 17 15:55:28.408 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 15:55:28.408 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 17 15:55:28.408 INFO [stderr] 
Nov 17 15:55:28.408 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 15:55:28.408 INFO [stderr]    --> src/main.rs:103:19
Nov 17 15:55:28.408 INFO [stderr]     |
Nov 17 15:55:28.408 INFO [stderr] 103 |                   writeln!(&mut out_handle, "```");
Nov 17 15:55:28.408 INFO [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:55:28.408 INFO [stderr]     |
Nov 17 15:55:28.408 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 15:55:28.408 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 17 15:55:28.408 INFO [stderr] 
Nov 17 15:55:28.408 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 15:55:28.408 INFO [stderr]    --> src/main.rs:106:19
Nov 17 15:55:28.408 INFO [stderr]     |
Nov 17 15:55:28.408 INFO [stderr] 106 | /                   writeln!(
Nov 17 15:55:28.408 INFO [stderr] 107 | |                      &mut out_handle,
Nov 17 15:55:28.408 INFO [stderr] 108 | |                      "Failed to compile, but the compilation error was different than expected:"
Nov 17 15:55:28.408 INFO [stderr] 109 | |                   );
Nov 17 15:55:28.408 INFO [stderr]     | |____________________^
Nov 17 15:55:28.408 INFO [stderr]     |
Nov 17 15:55:28.408 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 15:55:28.408 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 17 15:55:28.408 INFO [stderr] 
Nov 17 15:55:28.408 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 15:55:28.408 INFO [stderr]    --> src/main.rs:110:19
Nov 17 15:55:28.408 INFO [stderr]     |
Nov 17 15:55:28.408 INFO [stderr] 110 |                   writeln!(&mut out_handle, "```");
Nov 17 15:55:28.408 INFO [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:55:28.408 INFO [stderr]     |
Nov 17 15:55:28.408 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 15:55:28.408 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 17 15:55:28.408 INFO [stderr] 
Nov 17 15:55:28.408 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 15:55:28.409 INFO [stderr]    --> src/main.rs:112:19
Nov 17 15:55:28.409 INFO [stderr]     |
Nov 17 15:55:28.409 INFO [stderr] 112 |                   writeln!(&mut out_handle, "```");
Nov 17 15:55:28.409 INFO [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:55:28.409 INFO [stderr]     |
Nov 17 15:55:28.409 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 15:55:28.409 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 17 15:55:28.409 INFO [stderr] 
Nov 17 15:55:28.409 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 15:55:28.409 INFO [stderr]    --> src/main.rs:115:13
Nov 17 15:55:28.409 INFO [stderr]     |
Nov 17 15:55:28.409 INFO [stderr] 115 |             writeln!(&mut out_handle, "--------------------");
Nov 17 15:55:28.409 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:55:28.409 INFO [stderr]     |
Nov 17 15:55:28.409 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 15:55:28.409 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 17 15:55:28.409 INFO [stderr] 
Nov 17 15:55:28.409 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 15:55:28.409 INFO [stderr]    --> src/main.rs:128:13
Nov 17 15:55:28.409 INFO [stderr]     |
Nov 17 15:55:28.409 INFO [stderr] 128 |             writeln!(t, "{}", x);
Nov 17 15:55:28.409 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:55:28.409 INFO [stderr]     |
Nov 17 15:55:28.409 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 15:55:28.409 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 17 15:55:28.409 INFO [stderr] 
Nov 17 15:55:28.409 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 15:55:28.409 INFO [stderr]    --> src/main.rs:132:13
Nov 17 15:55:28.409 INFO [stderr]     |
Nov 17 15:55:28.409 INFO [stderr] 132 |             writeln!(t, "+{}", x);
Nov 17 15:55:28.409 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:55:28.409 INFO [stderr]     |
Nov 17 15:55:28.409 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 15:55:28.409 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 17 15:55:28.409 INFO [stderr] 
Nov 17 15:55:28.409 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 15:55:28.409 INFO [stderr]    --> src/main.rs:136:13
Nov 17 15:55:28.409 INFO [stderr]     |
Nov 17 15:55:28.409 INFO [stderr] 136 |             writeln!(t, "-{}", x);
Nov 17 15:55:28.409 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:55:28.409 INFO [stderr]     |
Nov 17 15:55:28.409 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 15:55:28.409 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 17 15:55:28.409 INFO [stderr] 
Nov 17 15:55:29.393 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.89s
Nov 17 15:55:29.397 INFO [stderr] su: No module specific data is present
Nov 17 15:55:29.776 INFO running `"docker" "inspect" "05edbb7b93851e7a5929c696b271696f5a131fed59e6520252b1710d217d6ff2"`
Nov 17 15:55:29.903 INFO running `"docker" "rm" "-f" "05edbb7b93851e7a5929c696b271696f5a131fed59e6520252b1710d217d6ff2"`
Nov 17 15:55:30.017 INFO [stdout] 05edbb7b93851e7a5929c696b271696f5a131fed59e6520252b1710d217d6ff2
Nov 17 15:55:30.027 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-4/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-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"`
Nov 17 15:55:30.224 INFO [stdout] 615cf70e2750e561c9dae1cb44b1ceff378cde1d26981d51326286348876fe02
Nov 17 15:55:30.226 INFO running `"docker" "start" "-a" "615cf70e2750e561c9dae1cb44b1ceff378cde1d26981d51326286348876fe02"`
Nov 17 15:55:30.794 INFO [stderr] usermod: no changes
Nov 17 15:55:30.855 INFO [stderr]    Compiling test_runner v0.3.0 (/source)
Nov 17 15:55:31.773 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 15:55:31.773 INFO [stderr]   --> src/main.rs:72:13
Nov 17 15:55:31.773 INFO [stderr]    |
Nov 17 15:55:31.773 INFO [stderr] 72 |             write!(&mut out_handle, "{}: ", entry.file_name().unwrap().to_str().unwrap());
Nov 17 15:55:31.773 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:55:31.773 INFO [stderr]    |
Nov 17 15:55:31.773 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 17 15:55:31.773 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 15:55:31.773 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 17 15:55:31.773 INFO [stderr] 
Nov 17 15:55:31.773 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 15:55:31.773 INFO [stderr]   --> src/main.rs:74:13
Nov 17 15:55:31.773 INFO [stderr]    |
Nov 17 15:55:31.773 INFO [stderr] 74 |             writeln!(&mut out_handle, "ok");
Nov 17 15:55:31.773 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:55:31.773 INFO [stderr]    |
Nov 17 15:55:31.773 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 15:55:31.773 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 17 15:55:31.773 INFO [stderr] 
Nov 17 15:55:31.773 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 15:55:31.773 INFO [stderr]   --> src/main.rs:81:13
Nov 17 15:55:31.773 INFO [stderr]    |
Nov 17 15:55:31.773 INFO [stderr] 81 |             writeln!(&mut out_handle, "--------------------");
Nov 17 15:55:31.773 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:55:31.773 INFO [stderr]    |
Nov 17 15:55:31.773 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 15:55:31.773 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 17 15:55:31.773 INFO [stderr] 
Nov 17 15:55:31.773 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 15:55:31.773 INFO [stderr]   --> src/main.rs:82:13
Nov 17 15:55:31.773 INFO [stderr]    |
Nov 17 15:55:31.773 INFO [stderr] 82 |             write!(&mut out_handle, "{}: ", entry.file_name().unwrap().to_str().unwrap());
Nov 17 15:55:31.773 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:55:31.773 INFO [stderr]    |
Nov 17 15:55:31.773 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 15:55:31.773 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 17 15:55:31.773 INFO [stderr] 
Nov 17 15:55:31.773 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 15:55:31.773 INFO [stderr]   --> src/main.rs:84:13
Nov 17 15:55:31.773 INFO [stderr]    |
Nov 17 15:55:31.773 INFO [stderr] 84 |             writeln!(&mut out_handle, "FAILED");
Nov 17 15:55:31.773 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:55:31.773 INFO [stderr]    |
Nov 17 15:55:31.773 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 15:55:31.773 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 17 15:55:31.773 INFO [stderr] 
Nov 17 15:55:31.773 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 15:55:31.773 INFO [stderr]   --> src/main.rs:88:19
Nov 17 15:55:31.773 INFO [stderr]    |
Nov 17 15:55:31.773 INFO [stderr] 88 |                   writeln!(&mut out_handle, "Compilation was supposed to fail, but it succeeded.");
Nov 17 15:55:31.773 INFO [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:55:31.773 INFO [stderr]    |
Nov 17 15:55:31.773 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 15:55:31.773 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 17 15:55:31.773 INFO [stderr] 
Nov 17 15:55:31.773 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 15:55:31.773 INFO [stderr]   --> src/main.rs:91:19
Nov 17 15:55:31.773 INFO [stderr]    |
Nov 17 15:55:31.773 INFO [stderr] 91 |                   writeln!(&mut out_handle, "Compilation was supposed to succeed, but it failed:");
Nov 17 15:55:31.774 INFO [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:55:31.774 INFO [stderr]    |
Nov 17 15:55:31.774 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 15:55:31.774 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 17 15:55:31.774 INFO [stderr] 
Nov 17 15:55:31.774 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 15:55:31.774 INFO [stderr]   --> src/main.rs:92:19
Nov 17 15:55:31.774 INFO [stderr]    |
Nov 17 15:55:31.774 INFO [stderr] 92 |                   writeln!(&mut out_handle, "```");
Nov 17 15:55:31.774 INFO [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:55:31.774 INFO [stderr]    |
Nov 17 15:55:31.774 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 15:55:31.774 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 17 15:55:31.774 INFO [stderr] 
Nov 17 15:55:31.774 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 15:55:31.774 INFO [stderr]   --> src/main.rs:93:19
Nov 17 15:55:31.774 INFO [stderr]    |
Nov 17 15:55:31.774 INFO [stderr] 93 |                   writeln!(&mut out_handle, "{}", String::from_utf8_lossy(&tc_output.stderr));
Nov 17 15:55:31.774 INFO [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:55:31.774 INFO [stderr]    |
Nov 17 15:55:31.774 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 15:55:31.774 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 17 15:55:31.774 INFO [stderr] 
Nov 17 15:55:31.774 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 15:55:31.774 INFO [stderr]   --> src/main.rs:94:19
Nov 17 15:55:31.774 INFO [stderr]    |
Nov 17 15:55:31.774 INFO [stderr] 94 |                   writeln!(&mut out_handle, "```");
Nov 17 15:55:31.774 INFO [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:55:31.774 INFO [stderr]    |
Nov 17 15:55:31.774 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 15:55:31.774 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 17 15:55:31.774 INFO [stderr] 
Nov 17 15:55:31.774 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 15:55:31.774 INFO [stderr]    --> src/main.rs:97:19
Nov 17 15:55:31.774 INFO [stderr]     |
Nov 17 15:55:31.774 INFO [stderr] 97  | /                   writeln!(
Nov 17 15:55:31.774 INFO [stderr] 98  | |                      &mut out_handle,
Nov 17 15:55:31.774 INFO [stderr] 99  | |                      "Compiled OK, but execution of the program produced a different result than expected:"
Nov 17 15:55:31.774 INFO [stderr] 100 | |                   );
Nov 17 15:55:31.774 INFO [stderr]     | |____________________^
Nov 17 15:55:31.774 INFO [stderr]     |
Nov 17 15:55:31.774 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 15:55:31.774 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 17 15:55:31.774 INFO [stderr] 
Nov 17 15:55:31.774 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 15:55:31.774 INFO [stderr]    --> src/main.rs:101:19
Nov 17 15:55:31.774 INFO [stderr]     |
Nov 17 15:55:31.774 INFO [stderr] 101 |                   writeln!(&mut out_handle, "```");
Nov 17 15:55:31.774 INFO [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:55:31.774 INFO [stderr]     |
Nov 17 15:55:31.774 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 15:55:31.774 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 17 15:55:31.774 INFO [stderr] 
Nov 17 15:55:31.774 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 15:55:31.774 INFO [stderr]    --> src/main.rs:103:19
Nov 17 15:55:31.774 INFO [stderr]     |
Nov 17 15:55:31.774 INFO [stderr] 103 |                   writeln!(&mut out_handle, "```");
Nov 17 15:55:31.774 INFO [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:55:31.774 INFO [stderr]     |
Nov 17 15:55:31.774 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 15:55:31.774 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 17 15:55:31.774 INFO [stderr] 
Nov 17 15:55:31.774 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 15:55:31.774 INFO [stderr]    --> src/main.rs:106:19
Nov 17 15:55:31.774 INFO [stderr]     |
Nov 17 15:55:31.774 INFO [stderr] 106 | /                   writeln!(
Nov 17 15:55:31.774 INFO [stderr] 107 | |                      &mut out_handle,
Nov 17 15:55:31.774 INFO [stderr] 108 | |                      "Failed to compile, but the compilation error was different than expected:"
Nov 17 15:55:31.774 INFO [stderr] 109 | |                   );
Nov 17 15:55:31.774 INFO [stderr]     | |____________________^
Nov 17 15:55:31.774 INFO [stderr]     |
Nov 17 15:55:31.774 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 15:55:31.788 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 17 15:55:31.788 INFO [stderr] 
Nov 17 15:55:31.788 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 15:55:31.788 INFO [stderr]    --> src/main.rs:110:19
Nov 17 15:55:31.788 INFO [stderr]     |
Nov 17 15:55:31.788 INFO [stderr] 110 |                   writeln!(&mut out_handle, "```");
Nov 17 15:55:31.788 INFO [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:55:31.788 INFO [stderr]     |
Nov 17 15:55:31.788 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 15:55:31.788 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 17 15:55:31.788 INFO [stderr] 
Nov 17 15:55:31.788 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 15:55:31.788 INFO [stderr]    --> src/main.rs:112:19
Nov 17 15:55:31.788 INFO [stderr]     |
Nov 17 15:55:31.788 INFO [stderr] 112 |                   writeln!(&mut out_handle, "```");
Nov 17 15:55:31.788 INFO [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:55:31.788 INFO [stderr]     |
Nov 17 15:55:31.788 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 15:55:31.788 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 17 15:55:31.788 INFO [stderr] 
Nov 17 15:55:31.788 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 15:55:31.788 INFO [stderr]    --> src/main.rs:115:13
Nov 17 15:55:31.788 INFO [stderr]     |
Nov 17 15:55:31.788 INFO [stderr] 115 |             writeln!(&mut out_handle, "--------------------");
Nov 17 15:55:31.788 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:55:31.789 INFO [stderr]     |
Nov 17 15:55:31.789 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 15:55:31.789 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 17 15:55:31.789 INFO [stderr] 
Nov 17 15:55:31.789 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 15:55:31.789 INFO [stderr]    --> src/main.rs:128:13
Nov 17 15:55:31.789 INFO [stderr]     |
Nov 17 15:55:31.789 INFO [stderr] 128 |             writeln!(t, "{}", x);
Nov 17 15:55:31.789 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:55:31.789 INFO [stderr]     |
Nov 17 15:55:31.789 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 15:55:31.789 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 17 15:55:31.789 INFO [stderr] 
Nov 17 15:55:31.789 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 15:55:31.789 INFO [stderr]    --> src/main.rs:132:13
Nov 17 15:55:31.789 INFO [stderr]     |
Nov 17 15:55:31.789 INFO [stderr] 132 |             writeln!(t, "+{}", x);
Nov 17 15:55:31.789 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:55:31.789 INFO [stderr]     |
Nov 17 15:55:31.789 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 15:55:31.789 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 17 15:55:31.789 INFO [stderr] 
Nov 17 15:55:31.789 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 15:55:31.789 INFO [stderr]    --> src/main.rs:136:13
Nov 17 15:55:31.789 INFO [stderr]     |
Nov 17 15:55:31.789 INFO [stderr] 136 |             writeln!(t, "-{}", x);
Nov 17 15:55:31.789 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:55:31.789 INFO [stderr]     |
Nov 17 15:55:31.789 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 15:55:31.789 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 17 15:55:31.789 INFO [stderr] 
Nov 17 15:55:32.027 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.22s
Nov 17 15:55:32.032 INFO [stderr] su: No module specific data is present
Nov 17 15:55:32.483 INFO running `"docker" "inspect" "615cf70e2750e561c9dae1cb44b1ceff378cde1d26981d51326286348876fe02"`
Nov 17 15:55:32.598 INFO running `"docker" "rm" "-f" "615cf70e2750e561c9dae1cb44b1ceff378cde1d26981d51326286348876fe02"`
Nov 17 15:55:32.707 INFO [stdout] 615cf70e2750e561c9dae1cb44b1ceff378cde1d26981d51326286348876fe02
Nov 17 15:55:32.709 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-4/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-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"`
Nov 17 15:55:32.894 INFO [stdout] 91614da5a864fcf66c30fe1b36ae17ae5373944ff59677c6282ebe0cf49bab68
Nov 17 15:55:32.901 INFO running `"docker" "start" "-a" "91614da5a864fcf66c30fe1b36ae17ae5373944ff59677c6282ebe0cf49bab68"`
Nov 17 15:55:33.416 INFO [stderr] usermod: no changes
Nov 17 15:55:33.469 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
Nov 17 15:55:33.470 INFO [stderr]      Running /target/debug/deps/test_runner-65c389cfc6968835
Nov 17 15:55:33.472 INFO [stdout] 
Nov 17 15:55:33.472 INFO [stdout] running 0 tests
Nov 17 15:55:33.472 INFO [stdout] 
Nov 17 15:55:33.472 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 17 15:55:33.472 INFO [stdout] 
Nov 17 15:55:33.474 INFO [stderr] su: No module specific data is present
Nov 17 15:55:33.836 INFO running `"docker" "inspect" "91614da5a864fcf66c30fe1b36ae17ae5373944ff59677c6282ebe0cf49bab68"`
Nov 17 15:55:34.005 INFO running `"docker" "rm" "-f" "91614da5a864fcf66c30fe1b36ae17ae5373944ff59677c6282ebe0cf49bab68"`
Nov 17 15:55:34.109 INFO [stdout] 91614da5a864fcf66c30fe1b36ae17ae5373944ff59677c6282ebe0cf49bab68