Dec 11 12:10:30.843 INFO checking padenot/trace-filtering against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 12:10:30.843 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-4/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/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 12:10:31.304 INFO [stdout] a3709e2355213e20ac98d6ee6392a6d73fcb237a51f8f927ce9d9c30602e7c65
Dec 11 12:10:31.312 INFO running `"docker" "start" "-a" "a3709e2355213e20ac98d6ee6392a6d73fcb237a51f8f927ce9d9c30602e7c65"`
Dec 11 12:10:33.094 INFO [stderr] usermod: no changes
Dec 11 12:10:33.197 INFO [stderr]     Checking trace-filtering v0.1.0 (/source)
Dec 11 12:10:33.836 INFO [stderr] warning: unused import: `std::io::Read`
Dec 11 12:10:33.836 INFO [stderr]  --> src/main.rs:7:5
Dec 11 12:10:33.836 INFO [stderr]   |
Dec 11 12:10:33.836 INFO [stderr] 7 | use std::io::Read;
Dec 11 12:10:33.836 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 11 12:10:33.836 INFO [stderr]   |
Dec 11 12:10:33.836 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 12:10:33.836 INFO [stderr] 
Dec 11 12:10:33.924 INFO [stderr] warning: unused import: `std::io::Read`
Dec 11 12:10:33.924 INFO [stderr]  --> src/main.rs:7:5
Dec 11 12:10:33.924 INFO [stderr]   |
Dec 11 12:10:33.924 INFO [stderr] 7 | use std::io::Read;
Dec 11 12:10:33.924 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 11 12:10:33.924 INFO [stderr]   |
Dec 11 12:10:33.924 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 12:10:33.924 INFO [stderr] 
Dec 11 12:10:33.944 INFO [stderr] warning: unused variable: `duration`
Dec 11 12:10:33.944 INFO [stderr]   --> src/main.rs:33:13
Dec 11 12:10:33.944 INFO [stderr]    |
Dec 11 12:10:33.944 INFO [stderr] 33 |     let mut duration = 0;
Dec 11 12:10:33.944 INFO [stderr]    |             ^^^^^^^^ help: consider using `_duration` instead
Dec 11 12:10:33.944 INFO [stderr]    |
Dec 11 12:10:33.944 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 12:10:33.944 INFO [stderr] 
Dec 11 12:10:34.052 INFO [stderr] warning: variable does not need to be mutable
Dec 11 12:10:34.052 INFO [stderr]   --> src/main.rs:27:9
Dec 11 12:10:34.052 INFO [stderr]    |
Dec 11 12:10:34.052 INFO [stderr] 27 |     let mut f = File::open("trace.log.child-1").expect("file not found");
Dec 11 12:10:34.052 INFO [stderr]    |         ----^
Dec 11 12:10:34.052 INFO [stderr]    |         |
Dec 11 12:10:34.052 INFO [stderr]    |         help: remove this `mut`
Dec 11 12:10:34.052 INFO [stderr]    |
Dec 11 12:10:34.052 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 11 12:10:34.052 INFO [stderr] 
Dec 11 12:10:34.052 INFO [stderr] warning: variable does not need to be mutable
Dec 11 12:10:34.052 INFO [stderr]   --> src/main.rs:33:9
Dec 11 12:10:34.052 INFO [stderr]    |
Dec 11 12:10:34.052 INFO [stderr] 33 |     let mut duration = 0;
Dec 11 12:10:34.052 INFO [stderr]    |         ----^^^^^^^^
Dec 11 12:10:34.052 INFO [stderr]    |         |
Dec 11 12:10:34.052 INFO [stderr]    |         help: remove this `mut`
Dec 11 12:10:34.052 INFO [stderr] 
Dec 11 12:10:34.080 INFO [stderr] warning: unused variable: `duration`
Dec 11 12:10:34.080 INFO [stderr]   --> src/main.rs:33:13
Dec 11 12:10:34.080 INFO [stderr]    |
Dec 11 12:10:34.080 INFO [stderr] 33 |     let mut duration = 0;
Dec 11 12:10:34.080 INFO [stderr]    |             ^^^^^^^^ help: consider using `_duration` instead
Dec 11 12:10:34.080 INFO [stderr]    |
Dec 11 12:10:34.080 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 12:10:34.080 INFO [stderr] 
Dec 11 12:10:34.140 INFO [stderr] warning: variable does not need to be mutable
Dec 11 12:10:34.140 INFO [stderr]   --> src/main.rs:27:9
Dec 11 12:10:34.140 INFO [stderr]    |
Dec 11 12:10:34.140 INFO [stderr] 27 |     let mut f = File::open("trace.log.child-1").expect("file not found");
Dec 11 12:10:34.140 INFO [stderr]    |         ----^
Dec 11 12:10:34.140 INFO [stderr]    |         |
Dec 11 12:10:34.140 INFO [stderr]    |         help: remove this `mut`
Dec 11 12:10:34.140 INFO [stderr]    |
Dec 11 12:10:34.140 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 11 12:10:34.140 INFO [stderr] 
Dec 11 12:10:34.140 INFO [stderr] warning: variable does not need to be mutable
Dec 11 12:10:34.140 INFO [stderr]   --> src/main.rs:33:9
Dec 11 12:10:34.140 INFO [stderr]    |
Dec 11 12:10:34.140 INFO [stderr] 33 |     let mut duration = 0;
Dec 11 12:10:34.140 INFO [stderr]    |         ----^^^^^^^^
Dec 11 12:10:34.140 INFO [stderr]    |         |
Dec 11 12:10:34.140 INFO [stderr]    |         help: remove this `mut`
Dec 11 12:10:34.140 INFO [stderr] 
Dec 11 12:10:34.184 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.06s
Dec 11 12:10:34.192 INFO [stderr] su: No module specific data is present
Dec 11 12:10:35.204 INFO running `"docker" "inspect" "a3709e2355213e20ac98d6ee6392a6d73fcb237a51f8f927ce9d9c30602e7c65"`
Dec 11 12:10:35.584 INFO running `"docker" "rm" "-f" "a3709e2355213e20ac98d6ee6392a6d73fcb237a51f8f927ce9d9c30602e7c65"`
Dec 11 12:10:35.988 INFO [stdout] a3709e2355213e20ac98d6ee6392a6d73fcb237a51f8f927ce9d9c30602e7c65