Nov 28 10:35:54.190 INFO checking UgnilJoZ/rust-pv against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 10:35:54.190 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-7/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/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 10:35:58.049 INFO [stdout] 4350c90c654f790d05727616ba858ad7a1d6c3dd8520c4fb4b650054cae4cacf
Nov 28 10:35:58.051 INFO running `"docker" "start" "-a" "4350c90c654f790d05727616ba858ad7a1d6c3dd8520c4fb4b650054cae4cacf"`
Nov 28 10:35:58.476 INFO [stderr] usermod: no changes
Nov 28 10:35:58.521 INFO [stderr]     Checking pv v0.3.0 (/source)
Nov 28 10:35:59.149 INFO [stderr] warning: unused import: `Stdio`
Nov 28 10:35:59.149 INFO [stderr]  --> src/main.rs:8:28
Nov 28 10:35:59.149 INFO [stderr]   |
Nov 28 10:35:59.149 INFO [stderr] 8 | use std::process::{Command,Stdio,exit};
Nov 28 10:35:59.149 INFO [stderr]   |                            ^^^^^
Nov 28 10:35:59.149 INFO [stderr]   |
Nov 28 10:35:59.149 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 28 10:35:59.149 INFO [stderr] 
Nov 28 10:35:59.149 INFO [stderr] warning: unused import: `fs`
Nov 28 10:35:59.149 INFO [stderr]   --> src/main.rs:10:31
Nov 28 10:35:59.149 INFO [stderr]    |
Nov 28 10:35:59.149 INFO [stderr] 10 | use std::{thread,time,cmp,env,fs};
Nov 28 10:35:59.149 INFO [stderr]    |                               ^^
Nov 28 10:35:59.149 INFO [stderr] 
Nov 28 10:35:59.160 INFO [stderr] warning: unused import: `Stdio`
Nov 28 10:35:59.160 INFO [stderr]  --> src/main.rs:8:28
Nov 28 10:35:59.160 INFO [stderr]   |
Nov 28 10:35:59.160 INFO [stderr] 8 | use std::process::{Command,Stdio,exit};
Nov 28 10:35:59.160 INFO [stderr]   |                            ^^^^^
Nov 28 10:35:59.160 INFO [stderr]   |
Nov 28 10:35:59.160 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 28 10:35:59.160 INFO [stderr] 
Nov 28 10:35:59.160 INFO [stderr] warning: unused import: `fs`
Nov 28 10:35:59.160 INFO [stderr]   --> src/main.rs:10:31
Nov 28 10:35:59.160 INFO [stderr]    |
Nov 28 10:35:59.160 INFO [stderr] 10 | use std::{thread,time,cmp,env,fs};
Nov 28 10:35:59.160 INFO [stderr]    |                               ^^
Nov 28 10:35:59.160 INFO [stderr] 
Nov 28 10:35:59.244 INFO [stderr] warning: unused variable: `size`
Nov 28 10:35:59.244 INFO [stderr]   --> src/main.rs:68:48
Nov 28 10:35:59.244 INFO [stderr]    |
Nov 28 10:35:59.244 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>>) {
Nov 28 10:35:59.244 INFO [stderr]    |                                                ^^^^ help: consider using `_size` instead
Nov 28 10:35:59.244 INFO [stderr]    |
Nov 28 10:35:59.244 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 28 10:35:59.244 INFO [stderr] 
Nov 28 10:35:59.244 INFO [stderr] warning: unused variable: `size`
Nov 28 10:35:59.244 INFO [stderr]   --> src/main.rs:76:51
Nov 28 10:35:59.244 INFO [stderr]    |
Nov 28 10:35:59.244 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>>) {
Nov 28 10:35:59.244 INFO [stderr]    |                                                   ^^^^ help: consider using `_size` instead
Nov 28 10:35:59.244 INFO [stderr] 
Nov 28 10:35:59.245 INFO [stderr] warning: unused variable: `prog`
Nov 28 10:35:59.245 INFO [stderr]   --> src/main.rs:88:6
Nov 28 10:35:59.245 INFO [stderr]    |
Nov 28 10:35:59.245 INFO [stderr] 88 |     let prog = args[0].clone();
Nov 28 10:35:59.245 INFO [stderr]    |         ^^^^ help: consider using `_prog` instead
Nov 28 10:35:59.245 INFO [stderr] 
Nov 28 10:35:59.245 INFO [stderr] warning: unused variable: `size`
Nov 28 10:35:59.245 INFO [stderr]   --> src/main.rs:68:48
Nov 28 10:35:59.245 INFO [stderr]    |
Nov 28 10:35:59.245 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>>) {
Nov 28 10:35:59.245 INFO [stderr]    |                                                ^^^^ help: consider using `_size` instead
Nov 28 10:35:59.245 INFO [stderr]    |
Nov 28 10:35:59.245 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 28 10:35:59.245 INFO [stderr] 
Nov 28 10:35:59.245 INFO [stderr] warning: unused variable: `size`
Nov 28 10:35:59.245 INFO [stderr]   --> src/main.rs:76:51
Nov 28 10:35:59.245 INFO [stderr]    |
Nov 28 10:35:59.245 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>>) {
Nov 28 10:35:59.245 INFO [stderr]    |                                                   ^^^^ help: consider using `_size` instead
Nov 28 10:35:59.245 INFO [stderr] 
Nov 28 10:35:59.245 INFO [stderr] warning: unused variable: `prog`
Nov 28 10:35:59.245 INFO [stderr]   --> src/main.rs:88:6
Nov 28 10:35:59.245 INFO [stderr]    |
Nov 28 10:35:59.245 INFO [stderr] 88 |     let prog = args[0].clone();
Nov 28 10:35:59.245 INFO [stderr]    |         ^^^^ help: consider using `_prog` instead
Nov 28 10:35:59.245 INFO [stderr] 
Nov 28 10:35:59.272 INFO [stderr] warning: variable does not need to be mutable
Nov 28 10:35:59.272 INFO [stderr]    --> src/main.rs:142:7
Nov 28 10:35:59.272 INFO [stderr]     |
Nov 28 10:35:59.272 INFO [stderr] 142 |         let mut file = File::open(filename).unwrap();
Nov 28 10:35:59.272 INFO [stderr]     |             ----^^^^
Nov 28 10:35:59.272 INFO [stderr]     |             |
Nov 28 10:35:59.272 INFO [stderr]     |             help: remove this `mut`
Nov 28 10:35:59.272 INFO [stderr]     |
Nov 28 10:35:59.272 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 28 10:35:59.272 INFO [stderr] 
Nov 28 10:35:59.272 INFO [stderr] warning: variable does not need to be mutable
Nov 28 10:35:59.272 INFO [stderr]    --> src/main.rs:149:7
Nov 28 10:35:59.272 INFO [stderr]     |
Nov 28 10:35:59.272 INFO [stderr] 149 |         let mut file = io::stdin();
Nov 28 10:35:59.272 INFO [stderr]     |             ----^^^^
Nov 28 10:35:59.272 INFO [stderr]     |             |
Nov 28 10:35:59.272 INFO [stderr]     |             help: remove this `mut`
Nov 28 10:35:59.272 INFO [stderr] 
Nov 28 10:35:59.274 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 10:35:59.277 INFO [stderr]   --> src/main.rs:36:2
Nov 28 10:35:59.277 INFO [stderr]    |
Nov 28 10:35:59.277 INFO [stderr] 36 |     io::stderr().write(sequence.as_slice());
Nov 28 10:35:59.277 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 10:35:59.277 INFO [stderr]    |
Nov 28 10:35:59.277 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 28 10:35:59.277 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 10:35:59.277 INFO [stderr] 
Nov 28 10:35:59.277 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 10:35:59.277 INFO [stderr]   --> src/main.rs:37:2
Nov 28 10:35:59.277 INFO [stderr]    |
Nov 28 10:35:59.277 INFO [stderr] 37 |     io::stderr().flush();
Nov 28 10:35:59.277 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Nov 28 10:35:59.277 INFO [stderr]    |
Nov 28 10:35:59.277 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 10:35:59.277 INFO [stderr] 
Nov 28 10:35:59.277 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 10:35:59.277 INFO [stderr]   --> src/main.rs:43:2
Nov 28 10:35:59.277 INFO [stderr]    |
Nov 28 10:35:59.277 INFO [stderr] 43 |     io::stderr().write(sequence.as_slice());
Nov 28 10:35:59.277 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 10:35:59.277 INFO [stderr]    |
Nov 28 10:35:59.277 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 10:35:59.277 INFO [stderr] 
Nov 28 10:35:59.277 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 10:35:59.277 INFO [stderr]   --> src/main.rs:44:2
Nov 28 10:35:59.277 INFO [stderr]    |
Nov 28 10:35:59.277 INFO [stderr] 44 |     io::stderr().flush();
Nov 28 10:35:59.277 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Nov 28 10:35:59.277 INFO [stderr]    |
Nov 28 10:35:59.277 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 10:35:59.277 INFO [stderr] 
Nov 28 10:35:59.277 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 10:35:59.277 INFO [stderr]    --> src/main.rs:161:2
Nov 28 10:35:59.277 INFO [stderr]     |
Nov 28 10:35:59.277 INFO [stderr] 161 |     write!(io::stderr(), "\n{} {}.\n", *bytes_read.lock().unwrap(), unit);
Nov 28 10:35:59.277 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 10:35:59.277 INFO [stderr]     |
Nov 28 10:35:59.277 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 10:35:59.277 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)
Nov 28 10:35:59.277 INFO [stderr] 
Nov 28 10:35:59.280 INFO [stderr] warning: variable does not need to be mutable
Nov 28 10:35:59.280 INFO [stderr]    --> src/main.rs:142:7
Nov 28 10:35:59.280 INFO [stderr]     |
Nov 28 10:35:59.280 INFO [stderr] 142 |         let mut file = File::open(filename).unwrap();
Nov 28 10:35:59.280 INFO [stderr]     |             ----^^^^
Nov 28 10:35:59.280 INFO [stderr]     |             |
Nov 28 10:35:59.280 INFO [stderr]     |             help: remove this `mut`
Nov 28 10:35:59.280 INFO [stderr]     |
Nov 28 10:35:59.280 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 28 10:35:59.280 INFO [stderr] 
Nov 28 10:35:59.280 INFO [stderr] warning: variable does not need to be mutable
Nov 28 10:35:59.280 INFO [stderr]    --> src/main.rs:149:7
Nov 28 10:35:59.280 INFO [stderr]     |
Nov 28 10:35:59.280 INFO [stderr] 149 |         let mut file = io::stdin();
Nov 28 10:35:59.280 INFO [stderr]     |             ----^^^^
Nov 28 10:35:59.280 INFO [stderr]     |             |
Nov 28 10:35:59.280 INFO [stderr]     |             help: remove this `mut`
Nov 28 10:35:59.280 INFO [stderr] 
Nov 28 10:35:59.280 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 10:35:59.280 INFO [stderr]   --> src/main.rs:36:2
Nov 28 10:35:59.280 INFO [stderr]    |
Nov 28 10:35:59.280 INFO [stderr] 36 |     io::stderr().write(sequence.as_slice());
Nov 28 10:35:59.280 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 10:35:59.280 INFO [stderr]    |
Nov 28 10:35:59.280 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 28 10:35:59.280 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 10:35:59.280 INFO [stderr] 
Nov 28 10:35:59.280 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 10:35:59.280 INFO [stderr]   --> src/main.rs:37:2
Nov 28 10:35:59.280 INFO [stderr]    |
Nov 28 10:35:59.280 INFO [stderr] 37 |     io::stderr().flush();
Nov 28 10:35:59.280 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Nov 28 10:35:59.280 INFO [stderr]    |
Nov 28 10:35:59.280 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 10:35:59.280 INFO [stderr] 
Nov 28 10:35:59.280 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 10:35:59.280 INFO [stderr]   --> src/main.rs:43:2
Nov 28 10:35:59.281 INFO [stderr]    |
Nov 28 10:35:59.281 INFO [stderr] 43 |     io::stderr().write(sequence.as_slice());
Nov 28 10:35:59.281 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 10:35:59.281 INFO [stderr]    |
Nov 28 10:35:59.281 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 10:35:59.281 INFO [stderr] 
Nov 28 10:35:59.281 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 10:35:59.281 INFO [stderr]   --> src/main.rs:44:2
Nov 28 10:35:59.281 INFO [stderr]    |
Nov 28 10:35:59.281 INFO [stderr] 44 |     io::stderr().flush();
Nov 28 10:35:59.281 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Nov 28 10:35:59.281 INFO [stderr]    |
Nov 28 10:35:59.281 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 10:35:59.281 INFO [stderr] 
Nov 28 10:35:59.281 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 10:35:59.281 INFO [stderr]    --> src/main.rs:161:2
Nov 28 10:35:59.281 INFO [stderr]     |
Nov 28 10:35:59.281 INFO [stderr] 161 |     write!(io::stderr(), "\n{} {}.\n", *bytes_read.lock().unwrap(), unit);
Nov 28 10:35:59.281 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 10:35:59.281 INFO [stderr]     |
Nov 28 10:35:59.281 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 10:35:59.281 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)
Nov 28 10:35:59.281 INFO [stderr] 
Nov 28 10:35:59.316 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
Nov 28 10:35:59.319 INFO [stderr] su: No module specific data is present
Nov 28 10:35:59.882 INFO running `"docker" "inspect" "4350c90c654f790d05727616ba858ad7a1d6c3dd8520c4fb4b650054cae4cacf"`
Nov 28 10:35:59.988 INFO running `"docker" "rm" "-f" "4350c90c654f790d05727616ba858ad7a1d6c3dd8520c4fb4b650054cae4cacf"`
Nov 28 10:36:00.076 INFO [stdout] 4350c90c654f790d05727616ba858ad7a1d6c3dd8520c4fb4b650054cae4cacf