[INFO] updating cached repository brayniac/telem
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/brayniac/telem
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/brayniac/telem" "work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/brayniac/telem"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/brayniac/telem'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/brayniac/telem" "work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/brayniac/telem"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/brayniac/telem'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 227ac82878d5505852ac945e5dda0e3dfdf90daf
[INFO] sha for GitHub repo brayniac/telem: 227ac82878d5505852ac945e5dda0e3dfdf90daf
[INFO] validating manifest of brayniac/telem on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of brayniac/telem on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing brayniac/telem
[INFO] finished frobbing brayniac/telem
[INFO] frobbed toml for brayniac/telem written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/brayniac/telem/Cargo.toml
[INFO] started frobbing brayniac/telem
[INFO] finished frobbing brayniac/telem
[INFO] frobbed toml for brayniac/telem written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/brayniac/telem/Cargo.toml
[INFO] crate brayniac/telem already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking brayniac/telem against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-7/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/brayniac/telem:/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" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 8b192687761bd1e2aa3ed8c0a5b4cc9136a918c15b61e5c801eca060359832fa
[INFO] running `"docker" "start" "-a" "8b192687761bd1e2aa3ed8c0a5b4cc9136a918c15b61e5c801eca060359832fa"`
[INFO] [stderr]    Compiling num-traits v0.1.37
[INFO] [stderr]    Compiling byteorder v0.5.3
[INFO] [stderr]     Checking inflate v0.2.0
[INFO] [stderr]     Checking histogram v0.6.6
[INFO] [stderr]     Checking hsl v0.1.1
[INFO] [stderr]     Checking shuteye v0.2.0
[INFO] [stderr]     Checking getopts v0.2.14
[INFO] [stderr]     Checking mpmc v0.1.2
[INFO] [stderr]     Checking allan v0.2.1
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]    Compiling phf_shared v0.7.21
[INFO] [stderr]     Checking nodrop v0.1.9
[INFO] [stderr]     Checking num-complex v0.1.37
[INFO] [stderr]     Checking clocksource v0.2.0
[INFO] [stderr] warning[E0503]: cannot use `state` because it was mutably borrowed
[INFO] [stderr]     --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/getopts-0.2.14/src/lib.rs:1008:33
[INFO] [stderr]      |
[INFO] [stderr] 955  |     let mut machine = |cont: &mut bool, (i, c): (usize, char)| {
[INFO] [stderr]      |                       ---------------------------------------- borrow of `state` occurs here
[INFO] [stderr] ...
[INFO] [stderr] 959  |         state = match (state, whitespace, limit) {
[INFO] [stderr]      |                        ----- borrow occurs due to use of `state` in closure
[INFO] [stderr] ...
[INFO] [stderr] 1008 |     while cont && match state { B | C => true, A => false } {
[INFO] [stderr]      |                                 ^ use of borrowed `state`
[INFO] [stderr] 1009 |         machine(&mut cont, (fake_i, ' '));
[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]     Checking shuteye v0.3.1
[INFO] [stderr]     Checking deflate v0.7.11
[INFO] [stderr]     Checking stb_truetype v0.1.2
[INFO] [stderr]     Checking raw-cpuid v2.0.2
[INFO] [stderr]    Compiling csv v0.14.7
[INFO] [stderr]     Checking heatmap v0.6.5
[INFO] [stderr]     Checking arrayvec v0.3.23
[INFO] [stderr]     Checking phf v0.7.21
[INFO] [stderr]     Checking num-bigint v0.1.37
[INFO] [stderr]     Checking uuid v0.1.18
[INFO] [stderr]     Checking tempdir v0.3.5
[INFO] [stderr]    Compiling num-integer v0.1.34
[INFO] [stderr]     Checking url v0.2.38
[INFO] [stderr]     Checking mmap v0.1.1
[INFO] [stderr]     Checking rusttype v0.1.2
[INFO] [stderr]    Compiling phf_generator v0.7.21
[INFO] [stderr]    Compiling num-iter v0.1.33
[INFO] [stderr]     Checking num-rational v0.1.36
[INFO] [stderr]    Compiling phf_codegen v0.7.21
[INFO] [stderr]     Checking num v0.1.37
[INFO] [stderr]     Checking chrono v0.2.25
[INFO] [stderr]     Checking png v0.7.0
[INFO] [stderr]    Compiling serde v0.6.15
[INFO] [stderr]     Checking waterfall v0.7.0
[INFO] [stderr]     Checking tiny_http v0.5.8
[INFO] [stderr]     Checking tic v0.2.1
[INFO] [stderr]    Compiling serde_json v0.6.1
[INFO] [stderr]    Compiling x86 v0.6.2
[INFO] [stderr] error[E0635]: unknown feature `convert`
[INFO] [stderr]  --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/x86-0.6.2/build.rs:1:54
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![cfg_attr(feature = "performance-counter", feature(convert))]
[INFO] [stderr]   |                                                      ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0635`.
[INFO] [stderr] error: Could not compile `x86`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "8b192687761bd1e2aa3ed8c0a5b4cc9136a918c15b61e5c801eca060359832fa"`
[INFO] running `"docker" "rm" "-f" "8b192687761bd1e2aa3ed8c0a5b4cc9136a918c15b61e5c801eca060359832fa"`
[INFO] [stdout] 8b192687761bd1e2aa3ed8c0a5b4cc9136a918c15b61e5c801eca060359832fa