Dec 11 21:22:40.057 INFO checking bstrydo/xconf against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 21:22:40.057 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-7/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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"`
Dec 11 21:22:40.482 INFO [stdout] 9f7492e1972a1c09e51efe1e8451a03d021f8087ed214542e81abc077ec3d6d3
Dec 11 21:22:40.484 INFO running `"docker" "start" "-a" "9f7492e1972a1c09e51efe1e8451a03d021f8087ed214542e81abc077ec3d6d3"`
Dec 11 21:22:42.225 INFO [stderr] usermod: no changes
Dec 11 21:22:42.429 INFO [stderr]     Checking hyper v0.10.12
Dec 11 21:22:46.677 INFO [stderr]     Checking iron v0.5.1
Dec 11 21:22:48.251 INFO [stderr]     Checking router v0.5.1
Dec 11 21:22:50.033 INFO [stderr]     Checking xconf v0.1.0 (/source)
Dec 11 21:22:51.709 INFO [stderr] warning: variable `weird` is assigned to, but never used
Dec 11 21:22:51.709 INFO [stderr]   --> src/bin/lifetimes.rs:11:9
Dec 11 21:22:51.709 INFO [stderr]    |
Dec 11 21:22:51.709 INFO [stderr] 11 |     let weird; //starts living here
Dec 11 21:22:51.709 INFO [stderr]    |         ^^^^^
Dec 11 21:22:51.709 INFO [stderr]    |
Dec 11 21:22:51.709 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 21:22:51.709 INFO [stderr]    = note: consider using `_weird` instead
Dec 11 21:22:51.709 INFO [stderr] 
Dec 11 21:22:51.709 INFO [stderr] warning: value assigned to `weird` is never read
Dec 11 21:22:51.709 INFO [stderr]   --> src/bin/lifetimes.rs:15:9
Dec 11 21:22:51.709 INFO [stderr]    |
Dec 11 21:22:51.709 INFO [stderr] 15 |         weird = do_something_weird(&my_v1, 3, my_v2);
Dec 11 21:22:51.709 INFO [stderr]    |         ^^^^^
Dec 11 21:22:51.709 INFO [stderr]    |
Dec 11 21:22:51.709 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 11 21:22:51.709 INFO [stderr] 
Dec 11 21:22:53.088 INFO [stderr] warning: variable does not need to be mutable
Dec 11 21:22:53.088 INFO [stderr]   --> src/bin/thread_example.rs:12:9
Dec 11 21:22:53.088 INFO [stderr]    |
Dec 11 21:22:53.088 INFO [stderr] 12 |     let mut handles = vec![
Dec 11 21:22:53.088 INFO [stderr]    |         ----^^^^^^^
Dec 11 21:22:53.088 INFO [stderr]    |         |
Dec 11 21:22:53.088 INFO [stderr]    |         help: remove this `mut`
Dec 11 21:22:53.120 INFO [stderr]    |
Dec 11 21:22:53.120 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 11 21:22:53.120 INFO [stderr] 
Dec 11 21:22:53.229 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 21:22:53.229 INFO [stderr]   --> src/bin/thread_example.rs:18:9
Dec 11 21:22:53.229 INFO [stderr]    |
Dec 11 21:22:53.229 INFO [stderr] 18 |         handle.join();
Dec 11 21:22:53.229 INFO [stderr]    |         ^^^^^^^^^^^^^^
Dec 11 21:22:53.240 INFO [stderr]    |
Dec 11 21:22:53.240 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 21:22:53.241 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 21:22:53.241 INFO [stderr] 
Dec 11 21:22:55.140 INFO [stderr] warning: variable `weird` is assigned to, but never used
Dec 11 21:22:55.140 INFO [stderr]   --> src/bin/lifetimes.rs:11:9
Dec 11 21:22:55.140 INFO [stderr]    |
Dec 11 21:22:55.140 INFO [stderr] 11 |     let weird; //starts living here
Dec 11 21:22:55.140 INFO [stderr]    |         ^^^^^
Dec 11 21:22:55.160 INFO [stderr]    |
Dec 11 21:22:55.160 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 21:22:55.160 INFO [stderr]    = note: consider using `_weird` instead
Dec 11 21:22:55.160 INFO [stderr] 
Dec 11 21:22:55.160 INFO [stderr] warning: value assigned to `weird` is never read
Dec 11 21:22:55.160 INFO [stderr]   --> src/bin/lifetimes.rs:15:9
Dec 11 21:22:55.160 INFO [stderr]    |
Dec 11 21:22:55.160 INFO [stderr] 15 |         weird = do_something_weird(&my_v1, 3, my_v2);
Dec 11 21:22:55.160 INFO [stderr]    |         ^^^^^
Dec 11 21:22:55.160 INFO [stderr]    |
Dec 11 21:22:55.160 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 11 21:22:55.160 INFO [stderr] 
Dec 11 21:22:56.084 INFO [stderr] warning: variable does not need to be mutable
Dec 11 21:22:56.084 INFO [stderr]   --> src/bin/thread_example.rs:12:9
Dec 11 21:22:56.084 INFO [stderr]    |
Dec 11 21:22:56.084 INFO [stderr] 12 |     let mut handles = vec![
Dec 11 21:22:56.084 INFO [stderr]    |         ----^^^^^^^
Dec 11 21:22:56.084 INFO [stderr]    |         |
Dec 11 21:22:56.084 INFO [stderr]    |         help: remove this `mut`
Dec 11 21:22:56.084 INFO [stderr]    |
Dec 11 21:22:56.084 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 11 21:22:56.084 INFO [stderr] 
Dec 11 21:22:56.132 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 21:22:56.132 INFO [stderr]   --> src/bin/thread_example.rs:18:9
Dec 11 21:22:56.132 INFO [stderr]    |
Dec 11 21:22:56.132 INFO [stderr] 18 |         handle.join();
Dec 11 21:22:56.132 INFO [stderr]    |         ^^^^^^^^^^^^^^
Dec 11 21:22:56.132 INFO [stderr]    |
Dec 11 21:22:56.132 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 21:22:56.132 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 21:22:56.132 INFO [stderr] 
Dec 11 21:22:57.489 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.24s
Dec 11 21:22:57.495 INFO [stderr] su: No module specific data is present
Dec 11 21:22:58.602 INFO running `"docker" "inspect" "9f7492e1972a1c09e51efe1e8451a03d021f8087ed214542e81abc077ec3d6d3"`
Dec 11 21:22:58.884 INFO running `"docker" "rm" "-f" "9f7492e1972a1c09e51efe1e8451a03d021f8087ed214542e81abc077ec3d6d3"`
Dec 11 21:22:59.143 INFO [stdout] 9f7492e1972a1c09e51efe1e8451a03d021f8087ed214542e81abc077ec3d6d3