Sep 10 12:27:37.462 INFO checking qcow2-0.1.2 against try#3a2610c2a16575649896925631bf8cec4f4b1961 for pr-54090
Sep 10 12:27:37.462 INFO running: cargo +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets
Sep 10 12:27:37.462 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-54090/try#3a2610c2a16575649896925631bf8cec4f4b1961:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-0/try#3a2610c2a16575649896925631bf8cec4f4b1961:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "CMD=cargo +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 12:27:37.726 INFO blam! b4fed0caca8a9d6cd52f376a7c761fb9078ec41464d4407044fbd5af7d7d1a4e
Sep 10 12:27:37.728 INFO running `"docker" "start" "-a" "b4fed0caca8a9d6cd52f376a7c761fb9078ec41464d4407044fbd5af7d7d1a4e"`
Sep 10 12:27:38.905 INFO kablam! usermod: no changes
Sep 10 12:27:38.956 INFO kablam!     Checking linked-hash-map v0.0.9
Sep 10 12:27:38.956 INFO kablam!     Checking positioned-io v0.2.2
Sep 10 12:27:39.546 INFO kablam!     Checking lru-cache v0.0.7
Sep 10 12:27:39.874 INFO kablam!     Checking qcow2 v0.1.2 (file:///source)
Sep 10 12:27:40.102 INFO kablam! warning: use of deprecated item 'std::ascii::AsciiExt': use inherent methods instead
Sep 10 12:27:40.102 INFO kablam!  --> src/extension.rs:1:5
Sep 10 12:27:40.102 INFO kablam!   |
Sep 10 12:27:40.102 INFO kablam! 1 | use std::ascii::AsciiExt;
Sep 10 12:27:40.102 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^
Sep 10 12:27:40.102 INFO kablam!   |
Sep 10 12:27:40.102 INFO kablam!   = note: #[warn(deprecated)] on by default
Sep 10 12:27:40.102 INFO kablam! 
Sep 10 12:27:40.198 INFO kablam! warning: use of deprecated item 'std::ascii::AsciiExt': use inherent methods instead
Sep 10 12:27:40.198 INFO kablam!  --> src/extension.rs:1:5
Sep 10 12:27:40.198 INFO kablam!   |
Sep 10 12:27:40.198 INFO kablam! 1 | use std::ascii::AsciiExt;
Sep 10 12:27:40.198 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^
Sep 10 12:27:40.198 INFO kablam!   |
Sep 10 12:27:40.198 INFO kablam!   = note: #[warn(deprecated)] on by default
Sep 10 12:27:40.198 INFO kablam! 
Sep 10 12:27:40.278 INFO kablam! warning: unused import: `std::ascii::AsciiExt`
Sep 10 12:27:40.278 INFO kablam!  --> src/extension.rs:1:5
Sep 10 12:27:40.278 INFO kablam!   |
Sep 10 12:27:40.278 INFO kablam! 1 | use std::ascii::AsciiExt;
Sep 10 12:27:40.278 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^
Sep 10 12:27:40.278 INFO kablam!   |
Sep 10 12:27:40.278 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 10 12:27:40.278 INFO kablam! 
Sep 10 12:27:40.278 INFO kablam! warning: unused import: `byteorder::ReadBytesExt`
Sep 10 12:27:40.278 INFO kablam!  --> src/extension.rs:7:5
Sep 10 12:27:40.278 INFO kablam!   |
Sep 10 12:27:40.278 INFO kablam! 7 | use byteorder::ReadBytesExt;
Sep 10 12:27:40.278 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 12:27:40.278 INFO kablam! 
Sep 10 12:27:40.333 INFO kablam! warning: variable does not need to be mutable
Sep 10 12:27:40.333 INFO kablam!    --> src/header.rs:207:21
Sep 10 12:27:40.333 INFO kablam!     |
Sep 10 12:27:40.333 INFO kablam! 207 |                 let mut ext = self.v3.extension(ext_code);
Sep 10 12:27:40.333 INFO kablam!     |                     ----^^^
Sep 10 12:27:40.333 INFO kablam!     |                     |
Sep 10 12:27:40.333 INFO kablam!     |                     help: remove this `mut`
Sep 10 12:27:40.335 INFO kablam!     |
Sep 10 12:27:40.335 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 10 12:27:40.335 INFO kablam! 
Sep 10 12:27:40.362 INFO kablam! warning: variable does not need to be mutable
Sep 10 12:27:40.362 INFO kablam!    --> src/read.rs:146:58
Sep 10 12:27:40.362 INFO kablam!     |
Sep 10 12:27:40.362 INFO kablam! 146 |     fn guest_read<T: ReadIntAt>(&self, l1: &T, pos: u64, mut buf: &mut [u8]) -> io::Result<usize> {
Sep 10 12:27:40.362 INFO kablam!     |                                                          ----^^^
Sep 10 12:27:40.362 INFO kablam!     |                                                          |
Sep 10 12:27:40.362 INFO kablam!     |                                                          help: remove this `mut`
Sep 10 12:27:40.362 INFO kablam! 
Sep 10 12:27:40.366 INFO kablam! warning: variable does not need to be mutable
Sep 10 12:27:40.366 INFO kablam!    --> src/read.rs:193:33
Sep 10 12:27:40.366 INFO kablam!     |
Sep 10 12:27:40.366 INFO kablam! 193 |     fn read_at(&self, pos: u64, mut buf: &mut [u8]) -> io::Result<usize> {
Sep 10 12:27:40.366 INFO kablam!     |                                 ----^^^
Sep 10 12:27:40.366 INFO kablam!     |                                 |
Sep 10 12:27:40.366 INFO kablam!     |                                 help: remove this `mut`
Sep 10 12:27:40.366 INFO kablam! 
Sep 10 12:27:40.421 INFO kablam! warning: unused import: `std::ascii::AsciiExt`
Sep 10 12:27:40.421 INFO kablam!  --> src/extension.rs:1:5
Sep 10 12:27:40.421 INFO kablam!   |
Sep 10 12:27:40.421 INFO kablam! 1 | use std::ascii::AsciiExt;
Sep 10 12:27:40.421 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^
Sep 10 12:27:40.421 INFO kablam!   |
Sep 10 12:27:40.421 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 10 12:27:40.421 INFO kablam! 
Sep 10 12:27:40.421 INFO kablam! warning: unused import: `byteorder::ReadBytesExt`
Sep 10 12:27:40.421 INFO kablam!  --> src/extension.rs:7:5
Sep 10 12:27:40.421 INFO kablam!   |
Sep 10 12:27:40.421 INFO kablam! 7 | use byteorder::ReadBytesExt;
Sep 10 12:27:40.421 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 12:27:40.421 INFO kablam! 
Sep 10 12:27:40.511 INFO kablam! warning: variable does not need to be mutable
Sep 10 12:27:40.511 INFO kablam!    --> src/header.rs:207:21
Sep 10 12:27:40.511 INFO kablam!     |
Sep 10 12:27:40.511 INFO kablam! 207 |                 let mut ext = self.v3.extension(ext_code);
Sep 10 12:27:40.511 INFO kablam!     |                     ----^^^
Sep 10 12:27:40.511 INFO kablam!     |                     |
Sep 10 12:27:40.511 INFO kablam!     |                     help: remove this `mut`
Sep 10 12:27:40.511 INFO kablam!     |
Sep 10 12:27:40.511 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 10 12:27:40.511 INFO kablam! 
Sep 10 12:27:40.582 INFO kablam! warning: variable does not need to be mutable
Sep 10 12:27:40.582 INFO kablam!    --> src/read.rs:146:58
Sep 10 12:27:40.583 INFO kablam!     |
Sep 10 12:27:40.583 INFO kablam! 146 |     fn guest_read<T: ReadIntAt>(&self, l1: &T, pos: u64, mut buf: &mut [u8]) -> io::Result<usize> {
Sep 10 12:27:40.583 INFO kablam!     |                                                          ----^^^
Sep 10 12:27:40.583 INFO kablam!     |                                                          |
Sep 10 12:27:40.583 INFO kablam!     |                                                          help: remove this `mut`
Sep 10 12:27:40.583 INFO kablam! 
Sep 10 12:27:40.596 INFO kablam! warning: variable does not need to be mutable
Sep 10 12:27:40.596 INFO kablam!    --> src/read.rs:193:33
Sep 10 12:27:40.596 INFO kablam!     |
Sep 10 12:27:40.596 INFO kablam! 193 |     fn read_at(&self, pos: u64, mut buf: &mut [u8]) -> io::Result<usize> {
Sep 10 12:27:40.596 INFO kablam!     |                                 ----^^^
Sep 10 12:27:40.596 INFO kablam!     |                                 |
Sep 10 12:27:40.596 INFO kablam!     |                                 help: remove this `mut`
Sep 10 12:27:40.596 INFO kablam! 
Sep 10 12:27:41.117 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.19s
Sep 10 12:27:41.120 INFO kablam! su: No module specific data is present
Sep 10 12:27:41.751 INFO running `"docker" "rm" "-f" "b4fed0caca8a9d6cd52f376a7c761fb9078ec41464d4407044fbd5af7d7d1a4e"`
Sep 10 12:27:41.842 INFO blam! b4fed0caca8a9d6cd52f376a7c761fb9078ec41464d4407044fbd5af7d7d1a4e