Dec 13 18:52:01.582 INFO testing futurepaul/hello_server_learning against try#aa49d8ef14939ddec0e34b346b60174a5673d48f for pr-56550
Dec 13 18:52:01.582 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-3/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 13 18:52:01.799 INFO [stdout] 128fc0da0151290833bad172488a76b6d7b8405f2df4fbda51bdd2770ae6a809
Dec 13 18:52:01.802 INFO running `"docker" "start" "-a" "128fc0da0151290833bad172488a76b6d7b8405f2df4fbda51bdd2770ae6a809"`
Dec 13 18:52:02.286 INFO [stderr] usermod: no changes
Dec 13 18:52:02.388 INFO [stderr]    Compiling hello v0.1.0 (/source)
Dec 13 18:52:03.146 INFO [stderr] warning: unused imports: `Error`, `Fail`
Dec 13 18:52:03.147 INFO [stderr]  --> src/lib.rs:7:15
Dec 13 18:52:03.147 INFO [stderr]   |
Dec 13 18:52:03.147 INFO [stderr] 7 | use failure::{Error, Fail};
Dec 13 18:52:03.147 INFO [stderr]   |               ^^^^^  ^^^^
Dec 13 18:52:03.147 INFO [stderr]   |
Dec 13 18:52:03.147 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 13 18:52:03.147 INFO [stderr] 
Dec 13 18:52:03.198 INFO [stderr] warning: field is never used: `workers`
Dec 13 18:52:03.198 INFO [stderr]   --> src/lib.rs:10:3
Dec 13 18:52:03.198 INFO [stderr]    |
Dec 13 18:52:03.198 INFO [stderr] 10 |   workers: Vec<Worker>,
Dec 13 18:52:03.198 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^
Dec 13 18:52:03.198 INFO [stderr]    |
Dec 13 18:52:03.198 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 13 18:52:03.198 INFO [stderr] 
Dec 13 18:52:03.198 INFO [stderr] warning: field is never used: `id`
Dec 13 18:52:03.198 INFO [stderr]   --> src/lib.rs:59:3
Dec 13 18:52:03.198 INFO [stderr]    |
Dec 13 18:52:03.198 INFO [stderr] 59 |   id: usize,
Dec 13 18:52:03.198 INFO [stderr]    |   ^^^^^^^^^
Dec 13 18:52:03.198 INFO [stderr] 
Dec 13 18:52:03.198 INFO [stderr] warning: field is never used: `thread`
Dec 13 18:52:03.198 INFO [stderr]   --> src/lib.rs:60:3
Dec 13 18:52:03.198 INFO [stderr]    |
Dec 13 18:52:03.198 INFO [stderr] 60 |   thread: thread::JoinHandle<()>,
Dec 13 18:52:03.198 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 18:52:03.198 INFO [stderr] 
Dec 13 18:52:04.402 INFO [stderr] warning: unused `#[macro_use]` import
Dec 13 18:52:04.402 INFO [stderr]  --> src/main.rs:1:1
Dec 13 18:52:04.402 INFO [stderr]   |
Dec 13 18:52:04.402 INFO [stderr] 1 | #[macro_use]
Dec 13 18:52:04.402 INFO [stderr]   | ^^^^^^^^^^^^
Dec 13 18:52:04.402 INFO [stderr]   |
Dec 13 18:52:04.402 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 13 18:52:04.402 INFO [stderr] 
Dec 13 18:52:04.443 INFO [stderr] warning: unused variable: `how_much_we_read`
Dec 13 18:52:04.443 INFO [stderr]   --> src/main.rs:28:7
Dec 13 18:52:04.443 INFO [stderr]    |
Dec 13 18:52:04.443 INFO [stderr] 28 |   let how_much_we_read = stream.read(&mut buffer).unwrap();
Dec 13 18:52:04.443 INFO [stderr]    |       ^^^^^^^^^^^^^^^^ help: consider using `_how_much_we_read` instead
Dec 13 18:52:04.443 INFO [stderr]    |
Dec 13 18:52:04.443 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 13 18:52:04.443 INFO [stderr] 
Dec 13 18:52:04.443 INFO [stderr] warning: unused variable: `how_much_written`
Dec 13 18:52:04.443 INFO [stderr]   --> src/main.rs:59:7
Dec 13 18:52:04.443 INFO [stderr]    |
Dec 13 18:52:04.443 INFO [stderr] 59 |   let how_much_written = stream.write(response.as_slice()).unwrap();
Dec 13 18:52:04.443 INFO [stderr]    |       ^^^^^^^^^^^^^^^^ help: consider using `_how_much_written` instead
Dec 13 18:52:04.443 INFO [stderr] 
Dec 13 18:52:05.112 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.80s
Dec 13 18:52:05.116 INFO [stderr] su: No module specific data is present
Dec 13 18:52:05.545 INFO running `"docker" "inspect" "128fc0da0151290833bad172488a76b6d7b8405f2df4fbda51bdd2770ae6a809"`
Dec 13 18:52:05.712 INFO running `"docker" "rm" "-f" "128fc0da0151290833bad172488a76b6d7b8405f2df4fbda51bdd2770ae6a809"`
Dec 13 18:52:05.860 INFO [stdout] 128fc0da0151290833bad172488a76b6d7b8405f2df4fbda51bdd2770ae6a809
Dec 13 18:52:05.863 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-3/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 13 18:52:06.123 INFO [stdout] 6492498c546e72ce0a7198f7c0419b75f689549a26806aaa60a348fe314570a4
Dec 13 18:52:06.124 INFO running `"docker" "start" "-a" "6492498c546e72ce0a7198f7c0419b75f689549a26806aaa60a348fe314570a4"`
Dec 13 18:52:06.804 INFO [stderr] usermod: no changes
Dec 13 18:52:06.829 INFO [stderr]    Compiling hello v0.1.0 (/source)
Dec 13 18:52:07.400 INFO [stderr] warning: unused `#[macro_use]` import
Dec 13 18:52:07.400 INFO [stderr]  --> src/main.rs:1:1
Dec 13 18:52:07.400 INFO [stderr]   |
Dec 13 18:52:07.400 INFO [stderr] 1 | #[macro_use]
Dec 13 18:52:07.400 INFO [stderr]   | ^^^^^^^^^^^^
Dec 13 18:52:07.400 INFO [stderr]   |
Dec 13 18:52:07.400 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 13 18:52:07.401 INFO [stderr] 
Dec 13 18:52:07.435 INFO [stderr] warning: unused imports: `Error`, `Fail`
Dec 13 18:52:07.435 INFO [stderr]  --> src/lib.rs:7:15
Dec 13 18:52:07.435 INFO [stderr]   |
Dec 13 18:52:07.435 INFO [stderr] 7 | use failure::{Error, Fail};
Dec 13 18:52:07.435 INFO [stderr]   |               ^^^^^  ^^^^
Dec 13 18:52:07.435 INFO [stderr]   |
Dec 13 18:52:07.435 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 13 18:52:07.435 INFO [stderr] 
Dec 13 18:52:07.450 INFO [stderr] warning: unused variable: `how_much_we_read`
Dec 13 18:52:07.450 INFO [stderr]   --> src/main.rs:28:7
Dec 13 18:52:07.450 INFO [stderr]    |
Dec 13 18:52:07.450 INFO [stderr] 28 |   let how_much_we_read = stream.read(&mut buffer).unwrap();
Dec 13 18:52:07.450 INFO [stderr]    |       ^^^^^^^^^^^^^^^^ help: consider using `_how_much_we_read` instead
Dec 13 18:52:07.450 INFO [stderr]    |
Dec 13 18:52:07.450 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 13 18:52:07.450 INFO [stderr] 
Dec 13 18:52:07.450 INFO [stderr] warning: unused variable: `how_much_written`
Dec 13 18:52:07.450 INFO [stderr]   --> src/main.rs:59:7
Dec 13 18:52:07.450 INFO [stderr]    |
Dec 13 18:52:07.450 INFO [stderr] 59 |   let how_much_written = stream.write(response.as_slice()).unwrap();
Dec 13 18:52:07.450 INFO [stderr]    |       ^^^^^^^^^^^^^^^^ help: consider using `_how_much_written` instead
Dec 13 18:52:07.450 INFO [stderr] 
Dec 13 18:52:07.485 INFO [stderr] warning: field is never used: `workers`
Dec 13 18:52:07.485 INFO [stderr]   --> src/lib.rs:10:3
Dec 13 18:52:07.485 INFO [stderr]    |
Dec 13 18:52:07.485 INFO [stderr] 10 |   workers: Vec<Worker>,
Dec 13 18:52:07.485 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^
Dec 13 18:52:07.485 INFO [stderr]    |
Dec 13 18:52:07.485 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 13 18:52:07.485 INFO [stderr] 
Dec 13 18:52:07.485 INFO [stderr] warning: field is never used: `id`
Dec 13 18:52:07.485 INFO [stderr]   --> src/lib.rs:59:3
Dec 13 18:52:07.485 INFO [stderr]    |
Dec 13 18:52:07.485 INFO [stderr] 59 |   id: usize,
Dec 13 18:52:07.485 INFO [stderr]    |   ^^^^^^^^^
Dec 13 18:52:07.485 INFO [stderr] 
Dec 13 18:52:07.485 INFO [stderr] warning: field is never used: `thread`
Dec 13 18:52:07.485 INFO [stderr]   --> src/lib.rs:60:3
Dec 13 18:52:07.485 INFO [stderr]    |
Dec 13 18:52:07.485 INFO [stderr] 60 |   thread: thread::JoinHandle<()>,
Dec 13 18:52:07.485 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 18:52:07.485 INFO [stderr] 
Dec 13 18:52:07.706 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.91s
Dec 13 18:52:07.712 INFO [stderr] su: No module specific data is present
Dec 13 18:52:07.985 INFO running `"docker" "inspect" "6492498c546e72ce0a7198f7c0419b75f689549a26806aaa60a348fe314570a4"`
Dec 13 18:52:08.279 INFO running `"docker" "rm" "-f" "6492498c546e72ce0a7198f7c0419b75f689549a26806aaa60a348fe314570a4"`
Dec 13 18:52:08.373 INFO [stdout] 6492498c546e72ce0a7198f7c0419b75f689549a26806aaa60a348fe314570a4
Dec 13 18:52:08.425 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-3/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-alt test --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 13 18:52:08.695 INFO [stdout] c40fdbe5325c86f7643ff1da2c4708467b3c4c15dee35edf457c92450ba617fb
Dec 13 18:52:08.700 INFO running `"docker" "start" "-a" "c40fdbe5325c86f7643ff1da2c4708467b3c4c15dee35edf457c92450ba617fb"`
Dec 13 18:52:09.403 INFO [stderr] usermod: no changes
Dec 13 18:52:09.450 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
Dec 13 18:52:09.462 INFO [stderr]      Running /target/debug/deps/hello-9a366a5372c16727
Dec 13 18:52:09.464 INFO [stdout] 
Dec 13 18:52:09.464 INFO [stdout] running 0 tests
Dec 13 18:52:09.464 INFO [stdout] 
Dec 13 18:52:09.464 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 13 18:52:09.464 INFO [stdout] 
Dec 13 18:52:09.464 INFO [stderr]      Running /target/debug/deps/hello-b0844a86eedb426d
Dec 13 18:52:09.465 INFO [stdout] 
Dec 13 18:52:09.465 INFO [stdout] running 0 tests
Dec 13 18:52:09.465 INFO [stdout] 
Dec 13 18:52:09.465 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 13 18:52:09.465 INFO [stdout] 
Dec 13 18:52:09.465 INFO [stderr]    Doc-tests hello
Dec 13 18:52:10.306 INFO [stdout] 
Dec 13 18:52:10.306 INFO [stdout] running 0 tests
Dec 13 18:52:10.306 INFO [stdout] 
Dec 13 18:52:10.306 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 13 18:52:10.306 INFO [stdout] 
Dec 13 18:52:10.313 INFO [stderr] su: No module specific data is present
Dec 13 18:52:10.725 INFO running `"docker" "inspect" "c40fdbe5325c86f7643ff1da2c4708467b3c4c15dee35edf457c92450ba617fb"`
Dec 13 18:52:10.956 INFO running `"docker" "rm" "-f" "c40fdbe5325c86f7643ff1da2c4708467b3c4c15dee35edf457c92450ba617fb"`
Dec 13 18:52:11.133 INFO [stdout] c40fdbe5325c86f7643ff1da2c4708467b3c4c15dee35edf457c92450ba617fb