[INFO] updating cached repository travis-ci/redactor
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/travis-ci/redactor
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/travis-ci/redactor" "work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/travis-ci/redactor"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/travis-ci/redactor'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/travis-ci/redactor" "work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/travis-ci/redactor"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/travis-ci/redactor'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 197eee68062f53654c9fe61694615a1b90920a0e
[INFO] sha for GitHub repo travis-ci/redactor: 197eee68062f53654c9fe61694615a1b90920a0e
[INFO] validating manifest of travis-ci/redactor on toolchain master#0f88167f89fffe321590c5148f21b7d51d44388d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of travis-ci/redactor on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing travis-ci/redactor
[INFO] finished frobbing travis-ci/redactor
[INFO] frobbed toml for travis-ci/redactor written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/travis-ci/redactor/Cargo.toml
[INFO] started frobbing travis-ci/redactor
[INFO] finished frobbing travis-ci/redactor
[INFO] frobbed toml for travis-ci/redactor written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/travis-ci/redactor/Cargo.toml
[INFO] crate travis-ci/redactor already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking travis-ci/redactor against try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b for pr-58948
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-7/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/travis-ci/redactor:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 465dd3e176002c9c6215e469342f37627d488f7de4dec84e92b7fac224712ebe
[INFO] running `"docker" "start" "-a" "465dd3e176002c9c6215e469342f37627d488f7de4dec84e92b7fac224712ebe"`
[INFO] [stderr]     Checking errno v0.1.8
[INFO] [stderr]     Checking tempdir v0.3.5
[INFO] [stderr]     Checking exec v0.2.0
[INFO] [stderr]     Checking pty v0.2.1
[INFO] [stderr]     Checking redactor v0.1.0-pre6 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/redactor.rs:142:23
[INFO] [stderr]     |
[INFO] [stderr] 142 | pub fn noop<'a, R, W>(mut input: &'a mut R, mut output: &'a mut W) where R: 'a + Read, W: 'a + Write {
[INFO] [stderr]     |                       ----^^^^^
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/redactor.rs:142:45
[INFO] [stderr]     |
[INFO] [stderr] 142 | pub fn noop<'a, R, W>(mut input: &'a mut R, mut output: &'a mut W) where R: 'a + Read, W: 'a + Write {
[INFO] [stderr]     |                                             ----^^^^^^
[INFO] [stderr]     |                                             |
[INFO] [stderr]     |                                             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/redactor.rs:142:23
[INFO] [stderr]     |
[INFO] [stderr] 142 | pub fn noop<'a, R, W>(mut input: &'a mut R, mut output: &'a mut W) where R: 'a + Read, W: 'a + Write {
[INFO] [stderr]     |                       ----^^^^^
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/redactor.rs:142:45
[INFO] [stderr]     |
[INFO] [stderr] 142 | pub fn noop<'a, R, W>(mut input: &'a mut R, mut output: &'a mut W) where R: 'a + Read, W: 'a + Write {
[INFO] [stderr]     |                                             ----^^^^^^
[INFO] [stderr]     |                                             |
[INFO] [stderr]     |                                             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.12s
[INFO] running `"docker" "inspect" "465dd3e176002c9c6215e469342f37627d488f7de4dec84e92b7fac224712ebe"`
[INFO] running `"docker" "rm" "-f" "465dd3e176002c9c6215e469342f37627d488f7de4dec84e92b7fac224712ebe"`
[INFO] [stdout] 465dd3e176002c9c6215e469342f37627d488f7de4dec84e92b7fac224712ebe