Nov 28 08:17:22.635 INFO checking bstrydo/xconf against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 08:17:22.637 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-3/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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 08:17:23.085 INFO [stdout] c6a070a44c935e106655f2542080d3561ddbfee7996787e72377bbaf9507cf6b
Nov 28 08:17:23.088 INFO running `"docker" "start" "-a" "c6a070a44c935e106655f2542080d3561ddbfee7996787e72377bbaf9507cf6b"`
Nov 28 08:17:24.633 INFO [stderr] usermod: no changes
Nov 28 08:17:24.820 INFO [stderr]     Checking idna v0.1.2
Nov 28 08:17:26.857 INFO [stderr]     Checking url v1.5.1
Nov 28 08:17:28.608 INFO [stderr]     Checking hyper v0.10.12
Nov 28 08:17:33.016 INFO [stderr]     Checking iron v0.5.1
Nov 28 08:17:34.656 INFO [stderr]     Checking router v0.5.1
Nov 28 08:17:36.327 INFO [stderr]     Checking xconf v0.1.0 (/source)
Nov 28 08:17:38.068 INFO [stderr] warning: variable does not need to be mutable
Nov 28 08:17:38.068 INFO [stderr]   --> src/bin/thread_example.rs:12:9
Nov 28 08:17:38.068 INFO [stderr]    |
Nov 28 08:17:38.068 INFO [stderr] 12 |     let mut handles = vec![
Nov 28 08:17:38.068 INFO [stderr]    |         ----^^^^^^^
Nov 28 08:17:38.068 INFO [stderr]    |         |
Nov 28 08:17:38.068 INFO [stderr]    |         help: remove this `mut`
Nov 28 08:17:38.068 INFO [stderr]    |
Nov 28 08:17:38.068 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 28 08:17:38.068 INFO [stderr] 
Nov 28 08:17:38.237 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 08:17:38.237 INFO [stderr]   --> src/bin/thread_example.rs:18:9
Nov 28 08:17:38.237 INFO [stderr]    |
Nov 28 08:17:38.237 INFO [stderr] 18 |         handle.join();
Nov 28 08:17:38.237 INFO [stderr]    |         ^^^^^^^^^^^^^^
Nov 28 08:17:38.237 INFO [stderr]    |
Nov 28 08:17:38.237 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 28 08:17:38.237 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 08:17:38.238 INFO [stderr] 
Nov 28 08:17:38.756 INFO [stderr] warning: variable `weird` is assigned to, but never used
Nov 28 08:17:38.757 INFO [stderr]   --> src/bin/lifetimes.rs:11:9
Nov 28 08:17:38.757 INFO [stderr]    |
Nov 28 08:17:38.757 INFO [stderr] 11 |     let weird; //starts living here
Nov 28 08:17:38.758 INFO [stderr]    |         ^^^^^
Nov 28 08:17:38.758 INFO [stderr]    |
Nov 28 08:17:38.759 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 28 08:17:38.759 INFO [stderr]    = note: consider using `_weird` instead
Nov 28 08:17:38.760 INFO [stderr] 
Nov 28 08:17:38.764 INFO [stderr] warning: value assigned to `weird` is never read
Nov 28 08:17:38.765 INFO [stderr]   --> src/bin/lifetimes.rs:15:9
Nov 28 08:17:38.765 INFO [stderr]    |
Nov 28 08:17:38.766 INFO [stderr] 15 |         weird = do_something_weird(&my_v1, 3, my_v2);
Nov 28 08:17:38.766 INFO [stderr]    |         ^^^^^
Nov 28 08:17:38.767 INFO [stderr]    |
Nov 28 08:17:38.767 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Nov 28 08:17:38.767 INFO [stderr] 
Nov 28 08:17:38.939 INFO [stderr] warning: variable `weird` is assigned to, but never used
Nov 28 08:17:38.939 INFO [stderr]   --> src/bin/lifetimes.rs:11:9
Nov 28 08:17:38.939 INFO [stderr]    |
Nov 28 08:17:38.939 INFO [stderr] 11 |     let weird; //starts living here
Nov 28 08:17:38.939 INFO [stderr]    |         ^^^^^
Nov 28 08:17:38.939 INFO [stderr]    |
Nov 28 08:17:38.956 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 28 08:17:38.957 INFO [stderr]    = note: consider using `_weird` instead
Nov 28 08:17:38.957 INFO [stderr] 
Nov 28 08:17:38.957 INFO [stderr] warning: value assigned to `weird` is never read
Nov 28 08:17:38.957 INFO [stderr]   --> src/bin/lifetimes.rs:15:9
Nov 28 08:17:38.957 INFO [stderr]    |
Nov 28 08:17:38.957 INFO [stderr] 15 |         weird = do_something_weird(&my_v1, 3, my_v2);
Nov 28 08:17:38.957 INFO [stderr]    |         ^^^^^
Nov 28 08:17:38.958 INFO [stderr]    |
Nov 28 08:17:38.958 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Nov 28 08:17:38.958 INFO [stderr] 
Nov 28 08:17:39.402 INFO [stderr] warning: variable does not need to be mutable
Nov 28 08:17:39.402 INFO [stderr]   --> src/bin/thread_example.rs:12:9
Nov 28 08:17:39.402 INFO [stderr]    |
Nov 28 08:17:39.402 INFO [stderr] 12 |     let mut handles = vec![
Nov 28 08:17:39.402 INFO [stderr]    |         ----^^^^^^^
Nov 28 08:17:39.402 INFO [stderr]    |         |
Nov 28 08:17:39.402 INFO [stderr]    |         help: remove this `mut`
Nov 28 08:17:39.403 INFO [stderr]    |
Nov 28 08:17:39.403 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 28 08:17:39.403 INFO [stderr] 
Nov 28 08:17:39.549 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 08:17:39.549 INFO [stderr]   --> src/bin/thread_example.rs:18:9
Nov 28 08:17:39.549 INFO [stderr]    |
Nov 28 08:17:39.549 INFO [stderr] 18 |         handle.join();
Nov 28 08:17:39.549 INFO [stderr]    |         ^^^^^^^^^^^^^^
Nov 28 08:17:39.549 INFO [stderr]    |
Nov 28 08:17:39.560 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 28 08:17:39.561 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 08:17:39.561 INFO [stderr] 
Nov 28 08:17:43.660 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.00s
Nov 28 08:17:43.676 INFO [stderr] su: No module specific data is present
Nov 28 08:17:44.726 INFO running `"docker" "inspect" "c6a070a44c935e106655f2542080d3561ddbfee7996787e72377bbaf9507cf6b"`
Nov 28 08:17:45.005 INFO running `"docker" "rm" "-f" "c6a070a44c935e106655f2542080d3561ddbfee7996787e72377bbaf9507cf6b"`
Nov 28 08:17:45.312 INFO [stdout] c6a070a44c935e106655f2542080d3561ddbfee7996787e72377bbaf9507cf6b