Dec 04 23:38:17.998 INFO checking UgnilJoZ/rust-pv against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 23:38:17.998 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-1/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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 04 23:38:18.210 INFO [stdout] d3d338bfc397fef0b833260547e7957f8c4e34ac11c03011f8a1f1e917638105
Dec 04 23:38:18.216 INFO running `"docker" "start" "-a" "d3d338bfc397fef0b833260547e7957f8c4e34ac11c03011f8a1f1e917638105"`
Dec 04 23:38:18.702 INFO [stderr] usermod: no changes
Dec 04 23:38:18.763 INFO [stderr]     Checking pv v0.3.0 (/source)
Dec 04 23:38:19.159 INFO [stderr] warning: unused import: `Stdio`
Dec 04 23:38:19.159 INFO [stderr]  --> src/main.rs:8:28
Dec 04 23:38:19.159 INFO [stderr]   |
Dec 04 23:38:19.159 INFO [stderr] 8 | use std::process::{Command,Stdio,exit};
Dec 04 23:38:19.159 INFO [stderr]   |                            ^^^^^
Dec 04 23:38:19.161 INFO [stderr]   |
Dec 04 23:38:19.161 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 23:38:19.161 INFO [stderr] 
Dec 04 23:38:19.161 INFO [stderr] warning: unused import: `fs`
Dec 04 23:38:19.161 INFO [stderr]   --> src/main.rs:10:31
Dec 04 23:38:19.161 INFO [stderr]    |
Dec 04 23:38:19.161 INFO [stderr] 10 | use std::{thread,time,cmp,env,fs};
Dec 04 23:38:19.161 INFO [stderr]    |                               ^^
Dec 04 23:38:19.161 INFO [stderr] 
Dec 04 23:38:19.241 INFO [stderr] warning: unused variable: `size`
Dec 04 23:38:19.241 INFO [stderr]   --> src/main.rs:68:48
Dec 04 23:38:19.242 INFO [stderr]    |
Dec 04 23:38:19.242 INFO [stderr] 68 | fn read_bytes<R: Read, W: Write>(file: &mut R, size: usize, output: &mut W, ref bytes_read: &std::sync::Arc<Mutex<usize>>, end_of_file: Arc<Mutex<bool>>) {
Dec 04 23:38:19.242 INFO [stderr]    |                                                ^^^^ help: consider using `_size` instead
Dec 04 23:38:19.242 INFO [stderr]    |
Dec 04 23:38:19.244 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 23:38:19.244 INFO [stderr] 
Dec 04 23:38:19.244 INFO [stderr] warning: unused variable: `size`
Dec 04 23:38:19.244 INFO [stderr]   --> src/main.rs:76:51
Dec 04 23:38:19.244 INFO [stderr]    |
Dec 04 23:38:19.244 INFO [stderr] 76 | fn read_lines<R: BufRead, W: Write>(file: &mut R, size: usize, output: &mut W, ref bytes_read: &std::sync::Arc<Mutex<usize>>, end_of_file: Arc<Mutex<bool>>) {
Dec 04 23:38:19.244 INFO [stderr]    |                                                   ^^^^ help: consider using `_size` instead
Dec 04 23:38:19.244 INFO [stderr] 
Dec 04 23:38:19.244 INFO [stderr] warning: unused variable: `prog`
Dec 04 23:38:19.244 INFO [stderr]   --> src/main.rs:88:6
Dec 04 23:38:19.244 INFO [stderr]    |
Dec 04 23:38:19.244 INFO [stderr] 88 |     let prog = args[0].clone();
Dec 04 23:38:19.244 INFO [stderr]    |         ^^^^ help: consider using `_prog` instead
Dec 04 23:38:19.244 INFO [stderr] 
Dec 04 23:38:19.280 INFO [stderr] warning: variable does not need to be mutable
Dec 04 23:38:19.280 INFO [stderr]    --> src/main.rs:142:7
Dec 04 23:38:19.280 INFO [stderr]     |
Dec 04 23:38:19.280 INFO [stderr] 142 |         let mut file = File::open(filename).unwrap();
Dec 04 23:38:19.280 INFO [stderr]     |             ----^^^^
Dec 04 23:38:19.280 INFO [stderr]     |             |
Dec 04 23:38:19.280 INFO [stderr]     |             help: remove this `mut`
Dec 04 23:38:19.280 INFO [stderr]     |
Dec 04 23:38:19.280 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 04 23:38:19.280 INFO [stderr] 
Dec 04 23:38:19.280 INFO [stderr] warning: variable does not need to be mutable
Dec 04 23:38:19.280 INFO [stderr]    --> src/main.rs:149:7
Dec 04 23:38:19.280 INFO [stderr]     |
Dec 04 23:38:19.280 INFO [stderr] 149 |         let mut file = io::stdin();
Dec 04 23:38:19.280 INFO [stderr]     |             ----^^^^
Dec 04 23:38:19.280 INFO [stderr]     |             |
Dec 04 23:38:19.280 INFO [stderr]     |             help: remove this `mut`
Dec 04 23:38:19.280 INFO [stderr] 
Dec 04 23:38:19.281 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 23:38:19.281 INFO [stderr]   --> src/main.rs:36:2
Dec 04 23:38:19.281 INFO [stderr]    |
Dec 04 23:38:19.281 INFO [stderr] 36 |     io::stderr().write(sequence.as_slice());
Dec 04 23:38:19.281 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:38:19.281 INFO [stderr]    |
Dec 04 23:38:19.281 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 23:38:19.281 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 23:38:19.281 INFO [stderr] 
Dec 04 23:38:19.282 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 23:38:19.282 INFO [stderr]   --> src/main.rs:37:2
Dec 04 23:38:19.282 INFO [stderr]    |
Dec 04 23:38:19.282 INFO [stderr] 37 |     io::stderr().flush();
Dec 04 23:38:19.282 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:38:19.282 INFO [stderr]    |
Dec 04 23:38:19.282 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 23:38:19.282 INFO [stderr] 
Dec 04 23:38:19.282 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 23:38:19.283 INFO [stderr]   --> src/main.rs:43:2
Dec 04 23:38:19.283 INFO [stderr]    |
Dec 04 23:38:19.283 INFO [stderr] 43 |     io::stderr().write(sequence.as_slice());
Dec 04 23:38:19.283 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:38:19.287 INFO [stderr]    |
Dec 04 23:38:19.287 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 23:38:19.287 INFO [stderr] 
Dec 04 23:38:19.287 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 23:38:19.287 INFO [stderr]   --> src/main.rs:44:2
Dec 04 23:38:19.287 INFO [stderr]    |
Dec 04 23:38:19.287 INFO [stderr] 44 |     io::stderr().flush();
Dec 04 23:38:19.287 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:38:19.287 INFO [stderr]    |
Dec 04 23:38:19.287 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 23:38:19.287 INFO [stderr] 
Dec 04 23:38:19.287 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 23:38:19.287 INFO [stderr]    --> src/main.rs:161:2
Dec 04 23:38:19.287 INFO [stderr]     |
Dec 04 23:38:19.287 INFO [stderr] 161 |     write!(io::stderr(), "\n{} {}.\n", *bytes_read.lock().unwrap(), unit);
Dec 04 23:38:19.287 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:38:19.287 INFO [stderr]     |
Dec 04 23:38:19.287 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 23:38:19.287 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 04 23:38:19.287 INFO [stderr] 
Dec 04 23:38:19.327 INFO [stderr] warning: unused import: `Stdio`
Dec 04 23:38:19.328 INFO [stderr]  --> src/main.rs:8:28
Dec 04 23:38:19.328 INFO [stderr]   |
Dec 04 23:38:19.328 INFO [stderr] 8 | use std::process::{Command,Stdio,exit};
Dec 04 23:38:19.328 INFO [stderr]   |                            ^^^^^
Dec 04 23:38:19.328 INFO [stderr]   |
Dec 04 23:38:19.328 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 23:38:19.328 INFO [stderr] 
Dec 04 23:38:19.328 INFO [stderr] warning: unused import: `fs`
Dec 04 23:38:19.328 INFO [stderr]   --> src/main.rs:10:31
Dec 04 23:38:19.328 INFO [stderr]    |
Dec 04 23:38:19.328 INFO [stderr] 10 | use std::{thread,time,cmp,env,fs};
Dec 04 23:38:19.328 INFO [stderr]    |                               ^^
Dec 04 23:38:19.328 INFO [stderr] 
Dec 04 23:38:19.415 INFO [stderr] warning: unused variable: `size`
Dec 04 23:38:19.415 INFO [stderr]   --> src/main.rs:68:48
Dec 04 23:38:19.415 INFO [stderr]    |
Dec 04 23:38:19.415 INFO [stderr] 68 | fn read_bytes<R: Read, W: Write>(file: &mut R, size: usize, output: &mut W, ref bytes_read: &std::sync::Arc<Mutex<usize>>, end_of_file: Arc<Mutex<bool>>) {
Dec 04 23:38:19.415 INFO [stderr]    |                                                ^^^^ help: consider using `_size` instead
Dec 04 23:38:19.415 INFO [stderr]    |
Dec 04 23:38:19.415 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 23:38:19.415 INFO [stderr] 
Dec 04 23:38:19.415 INFO [stderr] warning: unused variable: `size`
Dec 04 23:38:19.415 INFO [stderr]   --> src/main.rs:76:51
Dec 04 23:38:19.415 INFO [stderr]    |
Dec 04 23:38:19.415 INFO [stderr] 76 | fn read_lines<R: BufRead, W: Write>(file: &mut R, size: usize, output: &mut W, ref bytes_read: &std::sync::Arc<Mutex<usize>>, end_of_file: Arc<Mutex<bool>>) {
Dec 04 23:38:19.415 INFO [stderr]    |                                                   ^^^^ help: consider using `_size` instead
Dec 04 23:38:19.415 INFO [stderr] 
Dec 04 23:38:19.415 INFO [stderr] warning: unused variable: `prog`
Dec 04 23:38:19.415 INFO [stderr]   --> src/main.rs:88:6
Dec 04 23:38:19.415 INFO [stderr]    |
Dec 04 23:38:19.415 INFO [stderr] 88 |     let prog = args[0].clone();
Dec 04 23:38:19.415 INFO [stderr]    |         ^^^^ help: consider using `_prog` instead
Dec 04 23:38:19.415 INFO [stderr] 
Dec 04 23:38:19.455 INFO [stderr] warning: variable does not need to be mutable
Dec 04 23:38:19.455 INFO [stderr]    --> src/main.rs:142:7
Dec 04 23:38:19.455 INFO [stderr]     |
Dec 04 23:38:19.455 INFO [stderr] 142 |         let mut file = File::open(filename).unwrap();
Dec 04 23:38:19.455 INFO [stderr]     |             ----^^^^
Dec 04 23:38:19.455 INFO [stderr]     |             |
Dec 04 23:38:19.455 INFO [stderr]     |             help: remove this `mut`
Dec 04 23:38:19.455 INFO [stderr]     |
Dec 04 23:38:19.455 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 04 23:38:19.455 INFO [stderr] 
Dec 04 23:38:19.455 INFO [stderr] warning: variable does not need to be mutable
Dec 04 23:38:19.455 INFO [stderr]    --> src/main.rs:149:7
Dec 04 23:38:19.455 INFO [stderr]     |
Dec 04 23:38:19.455 INFO [stderr] 149 |         let mut file = io::stdin();
Dec 04 23:38:19.455 INFO [stderr]     |             ----^^^^
Dec 04 23:38:19.455 INFO [stderr]     |             |
Dec 04 23:38:19.455 INFO [stderr]     |             help: remove this `mut`
Dec 04 23:38:19.455 INFO [stderr] 
Dec 04 23:38:19.455 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 23:38:19.455 INFO [stderr]   --> src/main.rs:36:2
Dec 04 23:38:19.455 INFO [stderr]    |
Dec 04 23:38:19.455 INFO [stderr] 36 |     io::stderr().write(sequence.as_slice());
Dec 04 23:38:19.455 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:38:19.455 INFO [stderr]    |
Dec 04 23:38:19.455 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 23:38:19.455 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 23:38:19.455 INFO [stderr] 
Dec 04 23:38:19.455 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 23:38:19.455 INFO [stderr]   --> src/main.rs:37:2
Dec 04 23:38:19.455 INFO [stderr]    |
Dec 04 23:38:19.455 INFO [stderr] 37 |     io::stderr().flush();
Dec 04 23:38:19.455 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:38:19.455 INFO [stderr]    |
Dec 04 23:38:19.455 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 23:38:19.455 INFO [stderr] 
Dec 04 23:38:19.455 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 23:38:19.455 INFO [stderr]   --> src/main.rs:43:2
Dec 04 23:38:19.455 INFO [stderr]    |
Dec 04 23:38:19.455 INFO [stderr] 43 |     io::stderr().write(sequence.as_slice());
Dec 04 23:38:19.455 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:38:19.455 INFO [stderr]    |
Dec 04 23:38:19.455 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 23:38:19.455 INFO [stderr] 
Dec 04 23:38:19.455 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 23:38:19.455 INFO [stderr]   --> src/main.rs:44:2
Dec 04 23:38:19.455 INFO [stderr]    |
Dec 04 23:38:19.455 INFO [stderr] 44 |     io::stderr().flush();
Dec 04 23:38:19.455 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:38:19.455 INFO [stderr]    |
Dec 04 23:38:19.455 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 23:38:19.455 INFO [stderr] 
Dec 04 23:38:19.455 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 23:38:19.456 INFO [stderr]    --> src/main.rs:161:2
Dec 04 23:38:19.456 INFO [stderr]     |
Dec 04 23:38:19.456 INFO [stderr] 161 |     write!(io::stderr(), "\n{} {}.\n", *bytes_read.lock().unwrap(), unit);
Dec 04 23:38:19.456 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:38:19.456 INFO [stderr]     |
Dec 04 23:38:19.456 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 23:38:19.456 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 04 23:38:19.456 INFO [stderr] 
Dec 04 23:38:19.483 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
Dec 04 23:38:19.483 INFO [stderr] su: No module specific data is present
Dec 04 23:38:19.936 INFO running `"docker" "inspect" "d3d338bfc397fef0b833260547e7957f8c4e34ac11c03011f8a1f1e917638105"`
Dec 04 23:38:20.084 INFO running `"docker" "rm" "-f" "d3d338bfc397fef0b833260547e7957f8c4e34ac11c03011f8a1f1e917638105"`
Dec 04 23:38:20.205 INFO [stdout] d3d338bfc397fef0b833260547e7957f8c4e34ac11c03011f8a1f1e917638105