Oct 12 11:49:14.087 INFO checking travis-ci/redactor against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 12 11:49:14.089 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-0/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-0/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/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 +4021bd0b3c5815b087d6db10ce461e7e4854ade7-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"`
Oct 12 11:49:14.480 INFO blam! 7f42d6550b92304d8adcf224bcc5e6ad3af94ee981483bbcc1650d8a082268c7
Oct 12 11:49:14.482 INFO running `"docker" "start" "-a" "7f42d6550b92304d8adcf224bcc5e6ad3af94ee981483bbcc1650d8a082268c7"`
Oct 12 11:49:16.272 INFO kablam! usermod: no changes
Oct 12 11:49:16.404 INFO kablam!     Checking errno v0.1.8
Oct 12 11:49:16.408 INFO kablam!     Checking tempdir v0.3.5
Oct 12 11:49:16.909 INFO kablam!     Checking exec v0.2.0
Oct 12 11:49:16.909 INFO kablam!     Checking pty v0.2.1
Oct 12 11:49:17.444 INFO kablam!     Checking redactor v0.1.0-pre6 (/source)
Oct 12 11:49:18.225 INFO kablam! warning: variable does not need to be mutable
Oct 12 11:49:18.225 INFO kablam!    --> src/redactor.rs:142:23
Oct 12 11:49:18.226 INFO kablam!     |
Oct 12 11:49:18.226 INFO kablam! 142 | pub fn noop<'a, R, W>(mut input: &'a mut R, mut output: &'a mut W) where R: 'a + Read, W: 'a + Write {
Oct 12 11:49:18.226 INFO kablam!     |                       ----^^^^^
Oct 12 11:49:18.227 INFO kablam!     |                       |
Oct 12 11:49:18.227 INFO kablam!     |                       help: remove this `mut`
Oct 12 11:49:18.227 INFO kablam!     |
Oct 12 11:49:18.228 INFO kablam!     = note: #[warn(unused_mut)] on by default
Oct 12 11:49:18.228 INFO kablam! 
Oct 12 11:49:18.228 INFO kablam! warning: variable does not need to be mutable
Oct 12 11:49:18.228 INFO kablam!    --> src/redactor.rs:142:45
Oct 12 11:49:18.229 INFO kablam!     |
Oct 12 11:49:18.229 INFO kablam! 142 | pub fn noop<'a, R, W>(mut input: &'a mut R, mut output: &'a mut W) where R: 'a + Read, W: 'a + Write {
Oct 12 11:49:18.229 INFO kablam!     |                                             ----^^^^^^
Oct 12 11:49:18.230 INFO kablam!     |                                             |
Oct 12 11:49:18.230 INFO kablam!     |                                             help: remove this `mut`
Oct 12 11:49:18.230 INFO kablam! 
Oct 12 11:49:18.313 INFO kablam! warning: variable does not need to be mutable
Oct 12 11:49:18.313 INFO kablam!    --> src/redactor.rs:142:23
Oct 12 11:49:18.314 INFO kablam!     |
Oct 12 11:49:18.314 INFO kablam! 142 | pub fn noop<'a, R, W>(mut input: &'a mut R, mut output: &'a mut W) where R: 'a + Read, W: 'a + Write {
Oct 12 11:49:18.314 INFO kablam!     |                       ----^^^^^
Oct 12 11:49:18.315 INFO kablam!     |                       |
Oct 12 11:49:18.315 INFO kablam!     |                       help: remove this `mut`
Oct 12 11:49:18.315 INFO kablam!     |
Oct 12 11:49:18.316 INFO kablam!     = note: #[warn(unused_mut)] on by default
Oct 12 11:49:18.316 INFO kablam! 
Oct 12 11:49:18.316 INFO kablam! warning: variable does not need to be mutable
Oct 12 11:49:18.317 INFO kablam!    --> src/redactor.rs:142:45
Oct 12 11:49:18.317 INFO kablam!     |
Oct 12 11:49:18.317 INFO kablam! 142 | pub fn noop<'a, R, W>(mut input: &'a mut R, mut output: &'a mut W) where R: 'a + Read, W: 'a + Write {
Oct 12 11:49:18.317 INFO kablam!     |                                             ----^^^^^^
Oct 12 11:49:18.318 INFO kablam!     |                                             |
Oct 12 11:49:18.318 INFO kablam!     |                                             help: remove this `mut`
Oct 12 11:49:18.318 INFO kablam! 
Oct 12 11:49:18.376 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.07s
Oct 12 11:49:18.380 INFO kablam! su: No module specific data is present
Oct 12 11:49:19.244 INFO running `"docker" "rm" "-f" "7f42d6550b92304d8adcf224bcc5e6ad3af94ee981483bbcc1650d8a082268c7"`
Oct 12 11:49:19.624 INFO blam! 7f42d6550b92304d8adcf224bcc5e6ad3af94ee981483bbcc1650d8a082268c7