Sep 06 02:37:59.159 INFO checking perfcnt-0.3.0 against try#51ff957df5095d92d1d3d4682207ee8b7ad408a8 for pr-53854
Sep 06 02:37:59.159 INFO running: cargo +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets
Sep 06 02:37:59.159 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53854/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-2/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/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 +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 06 02:37:59.275 INFO blam! 40d8d1a15f817c5a2db672672d059927ef7886823a77ae6cbb0b4b50295fee71
Sep 06 02:37:59.277 INFO running `"docker" "start" "-a" "40d8d1a15f817c5a2db672672d059927ef7886823a77ae6cbb0b4b50295fee71"`
Sep 06 02:38:00.735 INFO kablam! usermod: no changes
Sep 06 02:38:00.811 INFO kablam!    Compiling byteorder v0.5.3
Sep 06 02:38:00.811 INFO kablam!    Compiling phf_shared v0.7.23
Sep 06 02:38:00.811 INFO kablam!     Checking raw-cpuid v2.0.2
Sep 06 02:38:00.812 INFO kablam!    Compiling num-integer v0.1.39
Sep 06 02:38:00.816 INFO kablam!    Compiling num-complex v0.1.43
Sep 06 02:38:00.816 INFO kablam!     Checking mmap v0.1.1
Sep 06 02:38:01.084 INFO kablam!    Compiling phf_generator v0.7.23
Sep 06 02:38:01.250 INFO kablam!     Checking phf v0.7.23
Sep 06 02:38:01.439 INFO kablam!    Compiling csv v0.14.7
Sep 06 02:38:01.694 INFO kablam!    Compiling phf_codegen v0.7.23
Sep 06 02:38:02.046 INFO kablam!    Compiling num-bigint v0.1.44
Sep 06 02:38:02.046 INFO kablam!    Compiling num-iter v0.1.37
Sep 06 02:38:03.816 INFO kablam!    Compiling num-rational v0.1.42
Sep 06 02:38:04.792 INFO kablam!    Compiling num v0.1.42
Sep 06 02:38:04.971 INFO kablam!    Compiling serde v0.6.15
Sep 06 02:38:07.553 INFO kablam!    Compiling serde_json v0.6.1
Sep 06 02:38:09.055 INFO kablam!    Compiling x86 v0.6.2
Sep 06 02:38:09.557 INFO kablam! error[E0635]: unknown feature `convert`
Sep 06 02:38:09.557 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/x86-0.6.2/build.rs:1:54
Sep 06 02:38:09.557 INFO kablam!   |
Sep 06 02:38:09.557 INFO kablam! 1 | #![cfg_attr(feature = "performance-counter", feature(convert))]
Sep 06 02:38:09.557 INFO kablam!   |                                                      ^^^^^^^
Sep 06 02:38:09.557 INFO kablam! 
Sep 06 02:38:09.563 INFO kablam! error: aborting due to previous error
Sep 06 02:38:09.563 INFO kablam! 
Sep 06 02:38:09.563 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 06 02:38:09.573 INFO kablam! error: Could not compile `x86`.
Sep 06 02:38:09.573 INFO kablam! 
Sep 06 02:38:09.573 INFO kablam! To learn more, run the command again with --verbose.
Sep 06 02:38:09.575 INFO kablam! su: No module specific data is present
Sep 06 02:38:10.330 INFO running `"docker" "rm" "-f" "40d8d1a15f817c5a2db672672d059927ef7886823a77ae6cbb0b4b50295fee71"`
Sep 06 02:38:10.405 INFO blam! 40d8d1a15f817c5a2db672672d059927ef7886823a77ae6cbb0b4b50295fee71