Dec 05 08:42:07.278 INFO checking qcow2-0.1.2 against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 08:42:07.278 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-3/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/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 05 08:42:07.563 INFO [stdout] 673d9d1618bf3e15e43ae20aa3913ad883b19916359e26129b2f5f38e1f808e6
Dec 05 08:42:07.571 INFO running `"docker" "start" "-a" "673d9d1618bf3e15e43ae20aa3913ad883b19916359e26129b2f5f38e1f808e6"`
Dec 05 08:42:08.230 INFO [stderr] usermod: no changes
Dec 05 08:42:08.286 INFO [stderr]     Checking linked-hash-map v0.0.9
Dec 05 08:42:08.286 INFO [stderr]     Checking positioned-io v0.2.2
Dec 05 08:42:08.878 INFO [stderr]     Checking lru-cache v0.0.7
Dec 05 08:42:09.407 INFO [stderr]     Checking qcow2 v0.1.2 (/source)
Dec 05 08:42:10.135 INFO [stderr] warning: use of deprecated item 'std::ascii::AsciiExt': use inherent methods instead
Dec 05 08:42:10.135 INFO [stderr]  --> src/extension.rs:1:5
Dec 05 08:42:10.135 INFO [stderr]   |
Dec 05 08:42:10.135 INFO [stderr] 1 | use std::ascii::AsciiExt;
Dec 05 08:42:10.135 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Dec 05 08:42:10.135 INFO [stderr]   |
Dec 05 08:42:10.135 INFO [stderr]   = note: #[warn(deprecated)] on by default
Dec 05 08:42:10.135 INFO [stderr] 
Dec 05 08:42:10.159 INFO [stderr] warning: use of deprecated item 'std::ascii::AsciiExt': use inherent methods instead
Dec 05 08:42:10.159 INFO [stderr]  --> src/extension.rs:1:5
Dec 05 08:42:10.159 INFO [stderr]   |
Dec 05 08:42:10.159 INFO [stderr] 1 | use std::ascii::AsciiExt;
Dec 05 08:42:10.159 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Dec 05 08:42:10.159 INFO [stderr]   |
Dec 05 08:42:10.159 INFO [stderr]   = note: #[warn(deprecated)] on by default
Dec 05 08:42:10.159 INFO [stderr] 
Dec 05 08:42:10.303 INFO [stderr] warning: unused import: `std::ascii::AsciiExt`
Dec 05 08:42:10.303 INFO [stderr]  --> src/extension.rs:1:5
Dec 05 08:42:10.303 INFO [stderr]   |
Dec 05 08:42:10.303 INFO [stderr] 1 | use std::ascii::AsciiExt;
Dec 05 08:42:10.303 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Dec 05 08:42:10.303 INFO [stderr]   |
Dec 05 08:42:10.303 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 08:42:10.303 INFO [stderr] 
Dec 05 08:42:10.303 INFO [stderr] warning: unused import: `byteorder::ReadBytesExt`
Dec 05 08:42:10.303 INFO [stderr]  --> src/extension.rs:7:5
Dec 05 08:42:10.303 INFO [stderr]   |
Dec 05 08:42:10.303 INFO [stderr] 7 | use byteorder::ReadBytesExt;
Dec 05 08:42:10.303 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 08:42:10.303 INFO [stderr] 
Dec 05 08:42:10.337 INFO [stderr] warning: unused import: `std::ascii::AsciiExt`
Dec 05 08:42:10.337 INFO [stderr]  --> src/extension.rs:1:5
Dec 05 08:42:10.337 INFO [stderr]   |
Dec 05 08:42:10.337 INFO [stderr] 1 | use std::ascii::AsciiExt;
Dec 05 08:42:10.337 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Dec 05 08:42:10.337 INFO [stderr]   |
Dec 05 08:42:10.337 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 08:42:10.337 INFO [stderr] 
Dec 05 08:42:10.337 INFO [stderr] warning: unused import: `byteorder::ReadBytesExt`
Dec 05 08:42:10.337 INFO [stderr]  --> src/extension.rs:7:5
Dec 05 08:42:10.337 INFO [stderr]   |
Dec 05 08:42:10.337 INFO [stderr] 7 | use byteorder::ReadBytesExt;
Dec 05 08:42:10.337 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 08:42:10.337 INFO [stderr] 
Dec 05 08:42:10.363 INFO [stderr] warning: variable does not need to be mutable
Dec 05 08:42:10.363 INFO [stderr]    --> src/header.rs:207:21
Dec 05 08:42:10.363 INFO [stderr]     |
Dec 05 08:42:10.363 INFO [stderr] 207 |                 let mut ext = self.v3.extension(ext_code);
Dec 05 08:42:10.363 INFO [stderr]     |                     ----^^^
Dec 05 08:42:10.363 INFO [stderr]     |                     |
Dec 05 08:42:10.363 INFO [stderr]     |                     help: remove this `mut`
Dec 05 08:42:10.363 INFO [stderr]     |
Dec 05 08:42:10.363 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 05 08:42:10.363 INFO [stderr] 
Dec 05 08:42:10.389 INFO [stderr] warning: variable does not need to be mutable
Dec 05 08:42:10.389 INFO [stderr]    --> src/read.rs:146:58
Dec 05 08:42:10.389 INFO [stderr]     |
Dec 05 08:42:10.389 INFO [stderr] 146 |     fn guest_read<T: ReadIntAt>(&self, l1: &T, pos: u64, mut buf: &mut [u8]) -> io::Result<usize> {
Dec 05 08:42:10.389 INFO [stderr]     |                                                          ----^^^
Dec 05 08:42:10.389 INFO [stderr]     |                                                          |
Dec 05 08:42:10.389 INFO [stderr]     |                                                          help: remove this `mut`
Dec 05 08:42:10.389 INFO [stderr] 
Dec 05 08:42:10.391 INFO [stderr] warning: variable does not need to be mutable
Dec 05 08:42:10.391 INFO [stderr]    --> src/read.rs:193:33
Dec 05 08:42:10.391 INFO [stderr]     |
Dec 05 08:42:10.391 INFO [stderr] 193 |     fn read_at(&self, pos: u64, mut buf: &mut [u8]) -> io::Result<usize> {
Dec 05 08:42:10.391 INFO [stderr]     |                                 ----^^^
Dec 05 08:42:10.391 INFO [stderr]     |                                 |
Dec 05 08:42:10.391 INFO [stderr]     |                                 help: remove this `mut`
Dec 05 08:42:10.391 INFO [stderr] 
Dec 05 08:42:10.411 INFO [stderr] warning: variable does not need to be mutable
Dec 05 08:42:10.411 INFO [stderr]    --> src/header.rs:207:21
Dec 05 08:42:10.411 INFO [stderr]     |
Dec 05 08:42:10.411 INFO [stderr] 207 |                 let mut ext = self.v3.extension(ext_code);
Dec 05 08:42:10.411 INFO [stderr]     |                     ----^^^
Dec 05 08:42:10.411 INFO [stderr]     |                     |
Dec 05 08:42:10.411 INFO [stderr]     |                     help: remove this `mut`
Dec 05 08:42:10.411 INFO [stderr]     |
Dec 05 08:42:10.411 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 05 08:42:10.411 INFO [stderr] 
Dec 05 08:42:10.435 INFO [stderr] warning: variable does not need to be mutable
Dec 05 08:42:10.435 INFO [stderr]    --> src/read.rs:146:58
Dec 05 08:42:10.435 INFO [stderr]     |
Dec 05 08:42:10.435 INFO [stderr] 146 |     fn guest_read<T: ReadIntAt>(&self, l1: &T, pos: u64, mut buf: &mut [u8]) -> io::Result<usize> {
Dec 05 08:42:10.435 INFO [stderr]     |                                                          ----^^^
Dec 05 08:42:10.435 INFO [stderr]     |                                                          |
Dec 05 08:42:10.435 INFO [stderr]     |                                                          help: remove this `mut`
Dec 05 08:42:10.439 INFO [stderr] 
Dec 05 08:42:10.443 INFO [stderr] warning: variable does not need to be mutable
Dec 05 08:42:10.443 INFO [stderr]    --> src/read.rs:193:33
Dec 05 08:42:10.443 INFO [stderr]     |
Dec 05 08:42:10.443 INFO [stderr] 193 |     fn read_at(&self, pos: u64, mut buf: &mut [u8]) -> io::Result<usize> {
Dec 05 08:42:10.443 INFO [stderr]     |                                 ----^^^
Dec 05 08:42:10.443 INFO [stderr]     |                                 |
Dec 05 08:42:10.443 INFO [stderr]     |                                 help: remove this `mut`
Dec 05 08:42:10.443 INFO [stderr] 
Dec 05 08:42:11.695 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.43s
Dec 05 08:42:11.695 INFO [stderr] su: No module specific data is present
Dec 05 08:42:12.189 INFO running `"docker" "inspect" "673d9d1618bf3e15e43ae20aa3913ad883b19916359e26129b2f5f38e1f808e6"`
Dec 05 08:42:12.483 INFO running `"docker" "rm" "-f" "673d9d1618bf3e15e43ae20aa3913ad883b19916359e26129b2f5f38e1f808e6"`
Dec 05 08:42:12.853 INFO [stdout] 673d9d1618bf3e15e43ae20aa3913ad883b19916359e26129b2f5f38e1f808e6