Nov 29 20:50:58.815 INFO checking padenot/trace-filtering against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 29 20:50:58.815 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-4/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/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 +32252761328f59ccfadb1bafb8148c685bc830b3-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 29 20:50:59.284 INFO [stdout] f98af97b2ea8c7cd14f9f6a75fb70578fbe53434498597d953e9527ce79724d7
Nov 29 20:50:59.290 INFO running `"docker" "start" "-a" "f98af97b2ea8c7cd14f9f6a75fb70578fbe53434498597d953e9527ce79724d7"`
Nov 29 20:51:00.284 INFO [stderr] usermod: no changes
Nov 29 20:51:00.407 INFO [stderr]     Checking trace-filtering v0.1.0 (/source)
Nov 29 20:51:01.028 INFO [stderr] warning: unused import: `std::io::Read`
Nov 29 20:51:01.028 INFO [stderr]  --> src/main.rs:7:5
Nov 29 20:51:01.028 INFO [stderr]   |
Nov 29 20:51:01.028 INFO [stderr] 7 | use std::io::Read;
Nov 29 20:51:01.028 INFO [stderr]   |     ^^^^^^^^^^^^^
Nov 29 20:51:01.028 INFO [stderr]   |
Nov 29 20:51:01.028 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 29 20:51:01.028 INFO [stderr] 
Nov 29 20:51:01.057 INFO [stderr] warning: unused import: `std::io::Read`
Nov 29 20:51:01.057 INFO [stderr]  --> src/main.rs:7:5
Nov 29 20:51:01.057 INFO [stderr]   |
Nov 29 20:51:01.057 INFO [stderr] 7 | use std::io::Read;
Nov 29 20:51:01.057 INFO [stderr]   |     ^^^^^^^^^^^^^
Nov 29 20:51:01.058 INFO [stderr]   |
Nov 29 20:51:01.058 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 29 20:51:01.058 INFO [stderr] 
Nov 29 20:51:01.176 INFO [stderr] warning: unused variable: `duration`
Nov 29 20:51:01.176 INFO [stderr]   --> src/main.rs:33:13
Nov 29 20:51:01.176 INFO [stderr]    |
Nov 29 20:51:01.176 INFO [stderr] 33 |     let mut duration = 0;
Nov 29 20:51:01.176 INFO [stderr]    |             ^^^^^^^^ help: consider using `_duration` instead
Nov 29 20:51:01.176 INFO [stderr]    |
Nov 29 20:51:01.176 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 29 20:51:01.176 INFO [stderr] 
Nov 29 20:51:01.240 INFO [stderr] warning: variable does not need to be mutable
Nov 29 20:51:01.240 INFO [stderr]   --> src/main.rs:27:9
Nov 29 20:51:01.240 INFO [stderr]    |
Nov 29 20:51:01.240 INFO [stderr] 27 |     let mut f = File::open("trace.log.child-1").expect("file not found");
Nov 29 20:51:01.240 INFO [stderr]    |         ----^
Nov 29 20:51:01.240 INFO [stderr]    |         |
Nov 29 20:51:01.240 INFO [stderr]    |         help: remove this `mut`
Nov 29 20:51:01.240 INFO [stderr]    |
Nov 29 20:51:01.240 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 29 20:51:01.240 INFO [stderr] 
Nov 29 20:51:01.240 INFO [stderr] warning: variable does not need to be mutable
Nov 29 20:51:01.240 INFO [stderr]   --> src/main.rs:33:9
Nov 29 20:51:01.240 INFO [stderr]    |
Nov 29 20:51:01.240 INFO [stderr] 33 |     let mut duration = 0;
Nov 29 20:51:01.240 INFO [stderr]    |         ----^^^^^^^^
Nov 29 20:51:01.240 INFO [stderr]    |         |
Nov 29 20:51:01.240 INFO [stderr]    |         help: remove this `mut`
Nov 29 20:51:01.240 INFO [stderr] 
Nov 29 20:51:01.388 INFO [stderr] warning: unused variable: `duration`
Nov 29 20:51:01.388 INFO [stderr]   --> src/main.rs:33:13
Nov 29 20:51:01.388 INFO [stderr]    |
Nov 29 20:51:01.388 INFO [stderr] 33 |     let mut duration = 0;
Nov 29 20:51:01.388 INFO [stderr]    |             ^^^^^^^^ help: consider using `_duration` instead
Nov 29 20:51:01.388 INFO [stderr]    |
Nov 29 20:51:01.388 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 29 20:51:01.388 INFO [stderr] 
Nov 29 20:51:01.480 INFO [stderr] warning: variable does not need to be mutable
Nov 29 20:51:01.480 INFO [stderr]   --> src/main.rs:27:9
Nov 29 20:51:01.480 INFO [stderr]    |
Nov 29 20:51:01.480 INFO [stderr] 27 |     let mut f = File::open("trace.log.child-1").expect("file not found");
Nov 29 20:51:01.480 INFO [stderr]    |         ----^
Nov 29 20:51:01.480 INFO [stderr]    |         |
Nov 29 20:51:01.480 INFO [stderr]    |         help: remove this `mut`
Nov 29 20:51:01.480 INFO [stderr]    |
Nov 29 20:51:01.480 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 29 20:51:01.480 INFO [stderr] 
Nov 29 20:51:01.480 INFO [stderr] warning: variable does not need to be mutable
Nov 29 20:51:01.480 INFO [stderr]   --> src/main.rs:33:9
Nov 29 20:51:01.480 INFO [stderr]    |
Nov 29 20:51:01.480 INFO [stderr] 33 |     let mut duration = 0;
Nov 29 20:51:01.480 INFO [stderr]    |         ----^^^^^^^^
Nov 29 20:51:01.480 INFO [stderr]    |         |
Nov 29 20:51:01.480 INFO [stderr]    |         help: remove this `mut`
Nov 29 20:51:01.480 INFO [stderr] 
Nov 29 20:51:01.503 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.20s
Nov 29 20:51:01.509 INFO [stderr] su: No module specific data is present
Nov 29 20:51:02.048 INFO running `"docker" "inspect" "f98af97b2ea8c7cd14f9f6a75fb70578fbe53434498597d953e9527ce79724d7"`
Nov 29 20:51:02.290 INFO running `"docker" "rm" "-f" "f98af97b2ea8c7cd14f9f6a75fb70578fbe53434498597d953e9527ce79724d7"`
Nov 29 20:51:02.591 INFO [stdout] f98af97b2ea8c7cd14f9f6a75fb70578fbe53434498597d953e9527ce79724d7