Nov 02 03:07:50.731 INFO testing tangle-0.4.0 against beta-2018-10-30 for beta-1.31-1
Nov 02 03:07:50.732 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-1/worker-2/beta-2018-10-30:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/beta-1.31-1/beta-2018-10-30:/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 +beta-2018-10-30 build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 02 03:07:51.115 INFO blam! 290727e8fb62786c32ec1fbac6c3916df2cc667d41c63e679979ebc460bd0d42
Nov 02 03:07:51.121 INFO running `"docker" "start" "-a" "290727e8fb62786c32ec1fbac6c3916df2cc667d41c63e679979ebc460bd0d42"`
Nov 02 03:07:52.348 INFO kablam! usermod: no changes
Nov 02 03:07:52.424 INFO kablam!    Compiling tangle v0.4.0 (/source)
Nov 02 03:07:53.071 INFO kablam! warning: unused import: `std::thread`
Nov 02 03:07:53.071 INFO kablam!  --> src/lib.rs:7:5
Nov 02 03:07:53.071 INFO kablam!   |
Nov 02 03:07:53.071 INFO kablam! 7 | use std::thread;
Nov 02 03:07:53.071 INFO kablam!   |     ^^^^^^^^^^^
Nov 02 03:07:53.071 INFO kablam!   |
Nov 02 03:07:53.071 INFO kablam!   = note: #[warn(unused_imports)] on by default
Nov 02 03:07:53.071 INFO kablam! 
Nov 02 03:07:53.071 INFO kablam! warning: unused import: `std::convert`
Nov 02 03:07:53.071 INFO kablam!   --> src/lib.rs:10:5
Nov 02 03:07:53.071 INFO kablam!    |
Nov 02 03:07:53.071 INFO kablam! 10 | use std::convert;
Nov 02 03:07:53.071 INFO kablam!    |     ^^^^^^^^^^^^
Nov 02 03:07:53.071 INFO kablam! 
Nov 02 03:07:53.074 INFO kablam! warning: defaults for type parameters are only allowed in `struct`, `enum`, `type`, or `trait` definitions.
Nov 02 03:07:53.074 INFO kablam!    --> src/lib.rs:178:9
Nov 02 03:07:53.074 INFO kablam!     |
Nov 02 03:07:53.074 INFO kablam! 178 | impl<T, E=()> Future<T, E>
Nov 02 03:07:53.074 INFO kablam!     |         ^
Nov 02 03:07:53.074 INFO kablam!     |
Nov 02 03:07:53.074 INFO kablam!     = note: #[warn(invalid_type_param_default)] on by default
Nov 02 03:07:53.074 INFO kablam!     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
Nov 02 03:07:53.074 INFO kablam!     = note: for more information, see issue #36887 <https://github.com/rust-lang/rust/issues/36887>
Nov 02 03:07:53.074 INFO kablam! 
Nov 02 03:07:53.151 INFO kablam! warning: unused variable: `cont`
Nov 02 03:07:53.151 INFO kablam!   --> src/lib.rs:46:29
Nov 02 03:07:53.151 INFO kablam!    |
Nov 02 03:07:53.151 INFO kablam! 46 |             Async::Continue(cont) => panic!("Cannot map on `Async::Continue`. Use `map_future` for that.")
Nov 02 03:07:53.151 INFO kablam!    |                             ^^^^ help: consider using `_cont` instead
Nov 02 03:07:53.151 INFO kablam!    |
Nov 02 03:07:53.151 INFO kablam!    = note: #[warn(unused_variables)] on by default
Nov 02 03:07:53.151 INFO kablam! 
Nov 02 03:07:53.151 INFO kablam! warning: unused variable: `cont`
Nov 02 03:07:53.151 INFO kablam!   --> src/lib.rs:54:29
Nov 02 03:07:53.151 INFO kablam!    |
Nov 02 03:07:53.151 INFO kablam! 54 |             Async::Continue(cont) => panic!("Cannot map on `Async::Continue`. Use `map_future` for that.")
Nov 02 03:07:53.151 INFO kablam!    |                             ^^^^ help: consider using `_cont` instead
Nov 02 03:07:53.151 INFO kablam! 
Nov 02 03:07:53.187 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 02 03:07:53.187 INFO kablam!    --> src/lib.rs:192:48
Nov 02 03:07:53.187 INFO kablam!     |
Nov 02 03:07:53.187 INFO kablam! 192 |         POOL.lock().unwrap().execute(move || { tx.send(f()); });
Nov 02 03:07:53.187 INFO kablam!     |                                                ^^^^^^^^^^^^^
Nov 02 03:07:53.187 INFO kablam!     |
Nov 02 03:07:53.187 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Nov 02 03:07:53.187 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 02 03:07:53.187 INFO kablam! 
Nov 02 03:07:53.187 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 02 03:07:53.187 INFO kablam!    --> src/lib.rs:274:30
Nov 02 03:07:53.187 INFO kablam!     |
Nov 02 03:07:53.187 INFO kablam! 274 |                 Ok(val) => { tx.send(f(val)); },
Nov 02 03:07:53.187 INFO kablam!     |                              ^^^^^^^^^^^^^^^^
Nov 02 03:07:53.187 INFO kablam!     |
Nov 02 03:07:53.187 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 02 03:07:53.187 INFO kablam! 
Nov 02 03:07:53.187 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 02 03:07:53.187 INFO kablam!    --> src/lib.rs:275:31
Nov 02 03:07:53.187 INFO kablam!     |
Nov 02 03:07:53.187 INFO kablam! 275 |                 Err(err) => { tx.send(Async::Err(err)); }
Nov 02 03:07:53.187 INFO kablam!     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 03:07:53.187 INFO kablam!     |
Nov 02 03:07:53.187 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 02 03:07:53.187 INFO kablam! 
Nov 02 03:07:53.187 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 02 03:07:53.187 INFO kablam!    --> src/lib.rs:305:30
Nov 02 03:07:53.187 INFO kablam!     |
Nov 02 03:07:53.187 INFO kablam! 305 |                 Ok(val) => { tx.send(Async::Ok(f(val))); },
Nov 02 03:07:53.187 INFO kablam!     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 03:07:53.187 INFO kablam!     |
Nov 02 03:07:53.187 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 02 03:07:53.187 INFO kablam! 
Nov 02 03:07:53.187 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 02 03:07:53.187 INFO kablam!    --> src/lib.rs:306:31
Nov 02 03:07:53.187 INFO kablam!     |
Nov 02 03:07:53.187 INFO kablam! 306 |                 Err(err) => { tx.send(Async::Err(err)); }
Nov 02 03:07:53.187 INFO kablam!     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 03:07:53.187 INFO kablam!     |
Nov 02 03:07:53.187 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 02 03:07:53.187 INFO kablam! 
Nov 02 03:07:53.187 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 02 03:07:53.188 INFO kablam!    --> src/lib.rs:338:9
Nov 02 03:07:53.188 INFO kablam!     |
Nov 02 03:07:53.188 INFO kablam! 338 |         tx.send(Async::Ok(val));
Nov 02 03:07:53.188 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 03:07:53.188 INFO kablam!     |
Nov 02 03:07:53.188 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 02 03:07:53.188 INFO kablam! 
Nov 02 03:07:53.188 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 02 03:07:53.188 INFO kablam!    --> src/lib.rs:354:9
Nov 02 03:07:53.188 INFO kablam!     |
Nov 02 03:07:53.188 INFO kablam! 354 |         tx.send(Async::Err(err));
Nov 02 03:07:53.188 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 03:07:53.188 INFO kablam!     |
Nov 02 03:07:53.188 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 02 03:07:53.188 INFO kablam! 
Nov 02 03:07:53.319 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.93s
Nov 02 03:07:53.327 INFO kablam! su: No module specific data is present
Nov 02 03:07:53.708 INFO running `"docker" "rm" "-f" "290727e8fb62786c32ec1fbac6c3916df2cc667d41c63e679979ebc460bd0d42"`
Nov 02 03:07:54.047 INFO blam! 290727e8fb62786c32ec1fbac6c3916df2cc667d41c63e679979ebc460bd0d42
Nov 02 03:07:54.050 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-1/worker-2/beta-2018-10-30:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/beta-1.31-1/beta-2018-10-30:/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 +beta-2018-10-30 test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 02 03:07:54.498 INFO blam! 3fad269ceffd24f71b16108e49856198c89a38597eecc060f94a4707b32640af
Nov 02 03:07:54.507 INFO running `"docker" "start" "-a" "3fad269ceffd24f71b16108e49856198c89a38597eecc060f94a4707b32640af"`
Nov 02 03:07:55.643 INFO kablam! usermod: no changes
Nov 02 03:07:55.711 INFO kablam!    Compiling tangle v0.4.0 (/source)
Nov 02 03:07:56.339 INFO kablam! warning: unused import: `std::thread`
Nov 02 03:07:56.339 INFO kablam!  --> src/lib.rs:7:5
Nov 02 03:07:56.340 INFO kablam!   |
Nov 02 03:07:56.340 INFO kablam! 7 | use std::thread;
Nov 02 03:07:56.340 INFO kablam!   |     ^^^^^^^^^^^
Nov 02 03:07:56.340 INFO kablam!   |
Nov 02 03:07:56.341 INFO kablam!   = note: #[warn(unused_imports)] on by default
Nov 02 03:07:56.341 INFO kablam! 
Nov 02 03:07:56.341 INFO kablam! warning: unused import: `std::convert`
Nov 02 03:07:56.342 INFO kablam!   --> src/lib.rs:10:5
Nov 02 03:07:56.342 INFO kablam!    |
Nov 02 03:07:56.342 INFO kablam! 10 | use std::convert;
Nov 02 03:07:56.342 INFO kablam!    |     ^^^^^^^^^^^^
Nov 02 03:07:56.343 INFO kablam! 
Nov 02 03:07:56.343 INFO kablam! warning: unused imports: `Receiver`, `Sender`
Nov 02 03:07:56.343 INFO kablam!    --> src/lib.rs:368:36
Nov 02 03:07:56.344 INFO kablam!     |
Nov 02 03:07:56.344 INFO kablam! 368 |     use std::sync::mpsc::{channel, Receiver, Sender};
Nov 02 03:07:56.344 INFO kablam!     |                                    ^^^^^^^^  ^^^^^^
Nov 02 03:07:56.344 INFO kablam! 
Nov 02 03:07:56.345 INFO kablam! warning: defaults for type parameters are only allowed in `struct`, `enum`, `type`, or `trait` definitions.
Nov 02 03:07:56.345 INFO kablam!    --> src/lib.rs:178:9
Nov 02 03:07:56.345 INFO kablam!     |
Nov 02 03:07:56.345 INFO kablam! 178 | impl<T, E=()> Future<T, E>
Nov 02 03:07:56.346 INFO kablam!     |         ^
Nov 02 03:07:56.346 INFO kablam!     |
Nov 02 03:07:56.346 INFO kablam!     = note: #[warn(invalid_type_param_default)] on by default
Nov 02 03:07:56.347 INFO kablam!     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
Nov 02 03:07:56.347 INFO kablam!     = note: for more information, see issue #36887 <https://github.com/rust-lang/rust/issues/36887>
Nov 02 03:07:56.347 INFO kablam! 
Nov 02 03:07:56.508 INFO kablam! warning: unused variable: `v`
Nov 02 03:07:56.509 INFO kablam!    --> src/lib.rs:386:17
Nov 02 03:07:56.510 INFO kablam!     |
Nov 02 03:07:56.510 INFO kablam! 386 |             let v = async!(v);
Nov 02 03:07:56.510 INFO kablam!     |                 ^ help: consider using `_v` instead
Nov 02 03:07:56.511 INFO kablam!     |
Nov 02 03:07:56.511 INFO kablam!     = note: #[warn(unused_variables)] on by default
Nov 02 03:07:56.511 INFO kablam! 
Nov 02 03:07:56.511 INFO kablam! warning: unused variable: `err`
Nov 02 03:07:56.512 INFO kablam!    --> src/lib.rs:429:17
Nov 02 03:07:56.512 INFO kablam!     |
Nov 02 03:07:56.512 INFO kablam! 429 |             Err(err) => panic!("Unexpected case.")
Nov 02 03:07:56.513 INFO kablam!     |                 ^^^ help: consider using `_err` instead
Nov 02 03:07:56.513 INFO kablam! 
Nov 02 03:07:56.513 INFO kablam! warning: unused variable: `err`
Nov 02 03:07:56.513 INFO kablam!    --> src/lib.rs:478:17
Nov 02 03:07:56.514 INFO kablam!     |
Nov 02 03:07:56.514 INFO kablam! 478 |             Err(err) => panic!("Unexpected value")
Nov 02 03:07:56.514 INFO kablam!     |                 ^^^ help: consider using `_err` instead
Nov 02 03:07:56.519 INFO kablam! 
Nov 02 03:07:56.519 INFO kablam! warning: unused variable: `err`
Nov 02 03:07:56.520 INFO kablam!    --> src/lib.rs:488:17
Nov 02 03:07:56.520 INFO kablam!     |
Nov 02 03:07:56.520 INFO kablam! 488 |             Err(err) => panic!("Unexpected value")
Nov 02 03:07:56.520 INFO kablam!     |                 ^^^ help: consider using `_err` instead
Nov 02 03:07:56.521 INFO kablam! 
Nov 02 03:07:56.521 INFO kablam! warning: unused variable: `n`
Nov 02 03:07:56.521 INFO kablam!    --> src/lib.rs:496:51
Nov 02 03:07:56.522 INFO kablam!     |
Nov 02 03:07:56.522 INFO kablam! 496 |         let curr: Future<usize> = count.and_then(|n| {
Nov 02 03:07:56.522 INFO kablam!     |                                                   ^ help: consider using `_n` instead
Nov 02 03:07:56.523 INFO kablam! 
Nov 02 03:07:56.523 INFO kablam! warning: unused variable: `err`
Nov 02 03:07:56.523 INFO kablam!    --> src/lib.rs:504:17
Nov 02 03:07:56.524 INFO kablam!     |
Nov 02 03:07:56.524 INFO kablam! 504 |             Err(err) => panic!("Unexpected value")
Nov 02 03:07:56.524 INFO kablam!     |                 ^^^ help: consider using `_err` instead
Nov 02 03:07:56.524 INFO kablam! 
Nov 02 03:07:56.525 INFO kablam! warning: unused variable: `cont`
Nov 02 03:07:56.525 INFO kablam!   --> src/lib.rs:46:29
Nov 02 03:07:56.525 INFO kablam!    |
Nov 02 03:07:56.526 INFO kablam! 46 |             Async::Continue(cont) => panic!("Cannot map on `Async::Continue`. Use `map_future` for that.")
Nov 02 03:07:56.526 INFO kablam!    |                             ^^^^ help: consider using `_cont` instead
Nov 02 03:07:56.526 INFO kablam! 
Nov 02 03:07:56.527 INFO kablam! warning: unused variable: `cont`
Nov 02 03:07:56.527 INFO kablam!   --> src/lib.rs:54:29
Nov 02 03:07:56.527 INFO kablam!    |
Nov 02 03:07:56.528 INFO kablam! 54 |             Async::Continue(cont) => panic!("Cannot map on `Async::Continue`. Use `map_future` for that.")
Nov 02 03:07:56.528 INFO kablam!    |                             ^^^^ help: consider using `_cont` instead
Nov 02 03:07:56.528 INFO kablam! 
Nov 02 03:07:56.566 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 02 03:07:56.566 INFO kablam!    --> src/lib.rs:192:48
Nov 02 03:07:56.567 INFO kablam!     |
Nov 02 03:07:56.567 INFO kablam! 192 |         POOL.lock().unwrap().execute(move || { tx.send(f()); });
Nov 02 03:07:56.567 INFO kablam!     |                                                ^^^^^^^^^^^^^
Nov 02 03:07:56.567 INFO kablam!     |
Nov 02 03:07:56.568 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Nov 02 03:07:56.568 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 02 03:07:56.568 INFO kablam! 
Nov 02 03:07:56.568 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 02 03:07:56.569 INFO kablam!    --> src/lib.rs:274:30
Nov 02 03:07:56.569 INFO kablam!     |
Nov 02 03:07:56.569 INFO kablam! 274 |                 Ok(val) => { tx.send(f(val)); },
Nov 02 03:07:56.570 INFO kablam!     |                              ^^^^^^^^^^^^^^^^
Nov 02 03:07:56.570 INFO kablam!     |
Nov 02 03:07:56.570 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 02 03:07:56.570 INFO kablam! 
Nov 02 03:07:56.571 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 02 03:07:56.571 INFO kablam!    --> src/lib.rs:275:31
Nov 02 03:07:56.571 INFO kablam!     |
Nov 02 03:07:56.572 INFO kablam! 275 |                 Err(err) => { tx.send(Async::Err(err)); }
Nov 02 03:07:56.572 INFO kablam!     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 03:07:56.572 INFO kablam!     |
Nov 02 03:07:56.573 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 02 03:07:56.573 INFO kablam! 
Nov 02 03:07:56.573 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 02 03:07:56.573 INFO kablam!    --> src/lib.rs:305:30
Nov 02 03:07:56.574 INFO kablam!     |
Nov 02 03:07:56.574 INFO kablam! 305 |                 Ok(val) => { tx.send(Async::Ok(f(val))); },
Nov 02 03:07:56.574 INFO kablam!     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 03:07:56.575 INFO kablam!     |
Nov 02 03:07:56.575 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 02 03:07:56.575 INFO kablam! 
Nov 02 03:07:56.575 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 02 03:07:56.576 INFO kablam!    --> src/lib.rs:306:31
Nov 02 03:07:56.576 INFO kablam!     |
Nov 02 03:07:56.576 INFO kablam! 306 |                 Err(err) => { tx.send(Async::Err(err)); }
Nov 02 03:07:56.577 INFO kablam!     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 03:07:56.577 INFO kablam!     |
Nov 02 03:07:56.577 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 02 03:07:56.577 INFO kablam! 
Nov 02 03:07:56.578 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 02 03:07:56.578 INFO kablam!    --> src/lib.rs:338:9
Nov 02 03:07:56.578 INFO kablam!     |
Nov 02 03:07:56.579 INFO kablam! 338 |         tx.send(Async::Ok(val));
Nov 02 03:07:56.579 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 03:07:56.579 INFO kablam!     |
Nov 02 03:07:56.579 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 02 03:07:56.580 INFO kablam! 
Nov 02 03:07:56.580 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 02 03:07:56.580 INFO kablam!    --> src/lib.rs:354:9
Nov 02 03:07:56.581 INFO kablam!     |
Nov 02 03:07:56.581 INFO kablam! 354 |         tx.send(Async::Err(err));
Nov 02 03:07:56.581 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 03:07:56.581 INFO kablam!     |
Nov 02 03:07:56.582 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 02 03:07:56.582 INFO kablam! 
Nov 02 03:07:56.582 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 02 03:07:56.583 INFO kablam!    --> src/lib.rs:425:9
Nov 02 03:07:56.583 INFO kablam!     |
Nov 02 03:07:56.583 INFO kablam! 425 |         tx.send(123);
Nov 02 03:07:56.583 INFO kablam!     |         ^^^^^^^^^^^^^
Nov 02 03:07:56.583 INFO kablam!     |
Nov 02 03:07:56.584 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 02 03:07:56.584 INFO kablam! 
Nov 02 03:07:56.584 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 02 03:07:56.584 INFO kablam!    --> src/lib.rs:447:9
Nov 02 03:07:56.584 INFO kablam!     |
Nov 02 03:07:56.585 INFO kablam! 447 |         tx.send(555);
Nov 02 03:07:56.585 INFO kablam!     |         ^^^^^^^^^^^^^
Nov 02 03:07:56.585 INFO kablam!     |
Nov 02 03:07:56.585 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 02 03:07:56.586 INFO kablam! 
Nov 02 03:07:58.486 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.81s
Nov 02 03:07:58.488 INFO kablam! su: No module specific data is present
Nov 02 03:07:59.284 INFO running `"docker" "rm" "-f" "3fad269ceffd24f71b16108e49856198c89a38597eecc060f94a4707b32640af"`
Nov 02 03:07:59.683 INFO blam! 3fad269ceffd24f71b16108e49856198c89a38597eecc060f94a4707b32640af
Nov 02 03:07:59.687 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-1/worker-2/beta-2018-10-30:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/beta-1.31-1/beta-2018-10-30:/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 +beta-2018-10-30 test --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 02 03:08:00.116 INFO blam! 4fe9bbe40c43b7969ee32b7c7dccef6b6f1bae111ea4bbe4c532c8b3c477a0b6
Nov 02 03:08:00.119 INFO running `"docker" "start" "-a" "4fe9bbe40c43b7969ee32b7c7dccef6b6f1bae111ea4bbe4c532c8b3c477a0b6"`
Nov 02 03:08:02.012 INFO kablam! usermod: no changes
Nov 02 03:08:02.083 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
Nov 02 03:08:02.099 INFO kablam!      Running /target/debug/deps/tangle-112a3300d036f84b
Nov 02 03:08:02.103 INFO blam! 
Nov 02 03:08:02.103 INFO blam! running 11 tests
Nov 02 03:08:02.103 INFO blam! test tests::async_map_err ... ok
Nov 02 03:08:02.107 INFO blam! test tests::async_map ... ok
Nov 02 03:08:02.107 INFO blam! test tests::async_macro_err ... ok
Nov 02 03:08:02.107 INFO blam! test tests::async_macro ... ok
Nov 02 03:08:02.107 INFO blam! test tests::resolve_from_value ... ok
Nov 02 03:08:02.107 INFO blam! test tests::to_future_macro ... ok
Nov 02 03:08:02.107 INFO blam! test tests::from_chan1 ... ok
Nov 02 03:08:02.112 INFO blam! test tests::map_promise ... ok
Nov 02 03:08:02.112 INFO blam! test tests::create_channel ... ok
Nov 02 03:08:02.151 INFO blam! test tests::async_map_fail ... ok
Nov 02 03:08:02.258 INFO blam! test tests::test_async ... ok
Nov 02 03:08:02.258 INFO blam! 
Nov 02 03:08:02.258 INFO blam! test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 02 03:08:02.258 INFO blam! 
Nov 02 03:08:02.260 INFO kablam!    Doc-tests tangle
Nov 02 03:08:03.431 INFO blam! 
Nov 02 03:08:03.431 INFO blam! running 7 tests
Nov 02 03:08:11.021 INFO blam! test src/lib.rs - Future<T, E>::and_then (line 254) ... ok
Nov 02 03:08:11.715 INFO blam! test src/lib.rs - Future<T, E>::err (line 346) ... ok
Nov 02 03:08:12.706 INFO blam! test src/lib.rs - Future<T, E>::new (line 182) ... ok
Nov 02 03:08:13.387 INFO blam! test src/lib.rs - Future<T, E>::unit (line 330) ... ok
Nov 02 03:08:13.887 INFO blam! test src/lib.rs - Future<T, E>::map (line 285) ... ok
Nov 02 03:08:13.984 INFO blam! test src/lib.rs - Future<T, E>::from_channel (line 226) ... ok
Nov 02 03:08:13.995 INFO blam! test src/lib.rs - Promise<T, E>::new (line 145) ... ok
Nov 02 03:08:13.995 INFO blam! 
Nov 02 03:08:13.995 INFO blam! test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 02 03:08:13.995 INFO blam! 
Nov 02 03:08:14.011 INFO kablam! su: No module specific data is present
Nov 02 03:08:14.775 INFO running `"docker" "rm" "-f" "4fe9bbe40c43b7969ee32b7c7dccef6b6f1bae111ea4bbe4c532c8b3c477a0b6"`
Nov 02 03:08:15.078 INFO blam! 4fe9bbe40c43b7969ee32b7c7dccef6b6f1bae111ea4bbe4c532c8b3c477a0b6
