[INFO] cloning repository redox-os/userutils
[INFO] running `"git" "clone" "--bare" "git://github.com/redox-os/userutils.git" "work/cache/sources/gh/redox-os/userutils"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/redox-os/userutils'...
[INFO] running `"git" "clone" "work/cache/sources/gh/redox-os/userutils" "work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/redox-os/userutils"`
[INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/redox-os/userutils'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/redox-os/userutils" "work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/redox-os/userutils"`
[INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/redox-os/userutils'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] abf971b73e15f9d3eccf582ac741f0cadc227329
[INFO] sha for GitHub repo redox-os/userutils: abf971b73e15f9d3eccf582ac741f0cadc227329
[INFO] validating manifest of redox-os/userutils on toolchain master#9f06855064ed06a50c496577b21ca50f92a2e67d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of redox-os/userutils on toolchain try#d3301713b54af69ca9de941a8c6b0d8287dbd6df
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing redox-os/userutils
[INFO] finished frobbing redox-os/userutils
[INFO] frobbed toml for redox-os/userutils written to work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/redox-os/userutils/Cargo.toml
[INFO] started frobbing redox-os/userutils
[INFO] finished frobbing redox-os/userutils
[INFO] frobbed toml for redox-os/userutils written to work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/redox-os/userutils/Cargo.toml
[INFO] crate redox-os/userutils already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded liner v0.1.5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking redox-os/userutils against try#d3301713b54af69ca9de941a8c6b0d8287dbd6df for pr-61874
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61874/worker-3/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/redox-os/userutils:/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" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] aa3bcadbe03ab13d061e4cd185f9f90a3984bf85d021bdf61a0af7663d3bd1f2
[INFO] running `"docker" "start" "-a" "aa3bcadbe03ab13d061e4cd185f9f90a3984bf85d021bdf61a0af7663d3bd1f2"`
[INFO] [stderr]    Compiling libc v0.2.49
[INFO] [stderr]    Compiling cc v1.0.29
[INFO] [stderr]     Checking redox_syscall v0.1.51
[INFO] [stderr]     Checking extra v0.1.0 (https://gitlab.redox-os.org/redox-os/libextra.git#0b50f3f2)
[INFO] [stderr]    Compiling backtrace v0.3.14
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]     Checking blake2-rfc v0.2.18
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]     Checking redox_termios v0.1.1
[INFO] [stderr]     Checking argon2rs v0.2.5
[INFO] [stderr]     Checking termion v1.5.3
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking clap v2.29.4
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]     Checking liner v0.1.5
[INFO] [stderr] warning[E0503]: cannot use `self.key_bindings` because it was mutably borrowed
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/liner-0.1.5/src/context.rs:78:17
[INFO] [stderr]    |
[INFO] [stderr] 76 |             let ed = try!(Editor::new(stdout, prompt.into(), self));
[INFO] [stderr]    |                                                              ---- borrow of `*self` occurs here
[INFO] [stderr] 77 |             match self.key_bindings {
[INFO] [stderr] 78 |                 KeyBindings::Emacs => Self::handle_keys(keymap::Emacs::new(ed), handler),
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^ use of borrowed `*self`
[INFO] [stderr] 79 |                 KeyBindings::Vi => Self::handle_keys(keymap::Vi::new(ed), handler),
[INFO] [stderr]    |                                                                      -- borrow later used here
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this error has been downgraded to a warning for backwards compatibility with previous releases
[INFO] [stderr]    = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
[INFO] [stderr]    = note: for more information, try `rustc --explain E0729`
[INFO] [stderr] 
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking redox_users v0.2.0
[INFO] [stderr]     Checking userutils v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 38.41s
[INFO] running `"docker" "inspect" "aa3bcadbe03ab13d061e4cd185f9f90a3984bf85d021bdf61a0af7663d3bd1f2"`
[INFO] running `"docker" "rm" "-f" "aa3bcadbe03ab13d061e4cd185f9f90a3984bf85d021bdf61a0af7663d3bd1f2"`
[INFO] [stdout] aa3bcadbe03ab13d061e4cd185f9f90a3984bf85d021bdf61a0af7663d3bd1f2