[INFO] updating cached repository https://github.com/vorner/fastmatmult
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3cbb829a785f9bd9e547b09aeea0214c035e6402
[INFO] checking vorner/fastmatmult against master#209b2be09fcaff937480d1fbbe8b31646e361c7a for pr-70917
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvorner%2Ffastmatmult" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vorner/fastmatmult on toolchain 209b2be09fcaff937480d1fbbe8b31646e361c7a
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/vorner/fastmatmult
[INFO] finished tweaking git repo https://github.com/vorner/fastmatmult
[INFO] tweaked toml for git repo https://github.com/vorner/fastmatmult written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/vorner/fastmatmult already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 43729ea12893040002f145240b6e9022281d41ff956898f2d9a4246aff9b97be
[INFO] running `"docker" "start" "-a" "43729ea12893040002f145240b6e9022281d41ff956898f2d9a4246aff9b97be"`
[INFO] [stderr]     Checking coresimd v0.0.4-1 (https://github.com/AdamNiederer/stdsimd?branch=fix-bft-build#d6874383)
[INFO] [stderr]     Checking serde v1.0.41
[INFO] [stderr]    Compiling proc-macro2 v0.3.6
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]    Compiling syn v0.13.1
[INFO] [stderr] error[E0658]: the target feature `mmx` is currently unstable
[INFO] [stderr]     --> /opt/rustwide/cargo-home/git/checkouts/stdsimd-657360edbf4388eb/d687438/coresimd/src/x86/i586/sse.rs:1692:18
[INFO] [stderr]      |
[INFO] [stderr] 1692 | #[target_feature(enable = "sse,mmx")]
[INFO] [stderr]      |                  ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: see issue #44839 <https://github.com/rust-lang/rust/issues/44839> for more information
[INFO] [stderr]      = help: add `#![feature(mmx_target_feature)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: the target feature `tbm` is currently unstable
[INFO] [stderr]   --> /opt/rustwide/cargo-home/git/checkouts/stdsimd-657360edbf4388eb/d687438/coresimd/src/x86/i586/tbm.rs:71:18
[INFO] [stderr]    |
[INFO] [stderr] 71 | #[target_feature(enable = "tbm")]
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #44839 <https://github.com/rust-lang/rust/issues/44839> for more information
[INFO] [stderr]    = help: add `#![feature(tbm_target_feature)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: the target feature `tbm` is currently unstable
[INFO] [stderr]   --> /opt/rustwide/cargo-home/git/checkouts/stdsimd-657360edbf4388eb/d687438/coresimd/src/x86/i586/tbm.rs:81:18
[INFO] [stderr]    |
[INFO] [stderr] 81 | #[target_feature(enable = "tbm")]
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #44839 <https://github.com/rust-lang/rust/issues/44839> for more information
[INFO] [stderr]    = help: add `#![feature(tbm_target_feature)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: the target feature `tbm` is currently unstable
[INFO] [stderr]   --> /opt/rustwide/cargo-home/git/checkouts/stdsimd-657360edbf4388eb/d687438/coresimd/src/x86/i586/tbm.rs:92:18
[INFO] [stderr]    |
[INFO] [stderr] 92 | #[target_feature(enable = "tbm")]
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #44839 <https://github.com/rust-lang/rust/issues/44839> for more information
[INFO] [stderr]    = help: add `#![feature(tbm_target_feature)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: the target feature `tbm` is currently unstable
[INFO] [stderr]    --> /opt/rustwide/cargo-home/git/checkouts/stdsimd-657360edbf4388eb/d687438/coresimd/src/x86/i586/tbm.rs:102:18
[INFO] [stderr]     |
[INFO] [stderr] 102 | #[target_feature(enable = "tbm")]
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #44839 <https://github.com/rust-lang/rust/issues/44839> for more information
[INFO] [stderr]     = help: add `#![feature(tbm_target_feature)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: the target feature `tbm` is currently unstable
[INFO] [stderr]    --> /opt/rustwide/cargo-home/git/checkouts/stdsimd-657360edbf4388eb/d687438/coresimd/src/x86/i586/tbm.rs:113:18
[INFO] [stderr]     |
[INFO] [stderr] 113 | #[target_feature(enable = "tbm")]
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #44839 <https://github.com/rust-lang/rust/issues/44839> for more information
[INFO] [stderr]     = help: add `#![feature(tbm_target_feature)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: the target feature `tbm` is currently unstable
[INFO] [stderr]    --> /opt/rustwide/cargo-home/git/checkouts/stdsimd-657360edbf4388eb/d687438/coresimd/src/x86/i586/tbm.rs:123:18
[INFO] [stderr]     |
[INFO] [stderr] 123 | #[target_feature(enable = "tbm")]
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #44839 <https://github.com/rust-lang/rust/issues/44839> for more information
[INFO] [stderr]     = help: add `#![feature(tbm_target_feature)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: the target feature `tbm` is currently unstable
[INFO] [stderr]    --> /opt/rustwide/cargo-home/git/checkouts/stdsimd-657360edbf4388eb/d687438/coresimd/src/x86/i586/tbm.rs:135:18
[INFO] [stderr]     |
[INFO] [stderr] 135 | #[target_feature(enable = "tbm")]
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #44839 <https://github.com/rust-lang/rust/issues/44839> for more information
[INFO] [stderr]     = help: add `#![feature(tbm_target_feature)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: the target feature `tbm` is currently unstable
[INFO] [stderr]    --> /opt/rustwide/cargo-home/git/checkouts/stdsimd-657360edbf4388eb/d687438/coresimd/src/x86/i586/tbm.rs:146:18
[INFO] [stderr]     |
[INFO] [stderr] 146 | #[target_feature(enable = "tbm")]
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #44839 <https://github.com/rust-lang/rust/issues/44839> for more information
[INFO] [stderr]     = help: add `#![feature(tbm_target_feature)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: the target feature `tbm` is currently unstable
[INFO] [stderr]    --> /opt/rustwide/cargo-home/git/checkouts/stdsimd-657360edbf4388eb/d687438/coresimd/src/x86/i586/tbm.rs:157:18
[INFO] [stderr]     |
[INFO] [stderr] 157 | #[target_feature(enable = "tbm")]
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #44839 <https://github.com/rust-lang/rust/issues/44839> for more information
[INFO] [stderr]     = help: add `#![feature(tbm_target_feature)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: the target feature `tbm` is currently unstable
[INFO] [stderr]    --> /opt/rustwide/cargo-home/git/checkouts/stdsimd-657360edbf4388eb/d687438/coresimd/src/x86/i586/tbm.rs:167:18
[INFO] [stderr]     |
[INFO] [stderr] 167 | #[target_feature(enable = "tbm")]
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #44839 <https://github.com/rust-lang/rust/issues/44839> for more information
[INFO] [stderr]     = help: add `#![feature(tbm_target_feature)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: the target feature `tbm` is currently unstable
[INFO] [stderr]    --> /opt/rustwide/cargo-home/git/checkouts/stdsimd-657360edbf4388eb/d687438/coresimd/src/x86/i586/tbm.rs:178:18
[INFO] [stderr]     |
[INFO] [stderr] 178 | #[target_feature(enable = "tbm")]
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #44839 <https://github.com/rust-lang/rust/issues/44839> for more information
[INFO] [stderr]     = help: add `#![feature(tbm_target_feature)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: the target feature `tbm` is currently unstable
[INFO] [stderr]    --> /opt/rustwide/cargo-home/git/checkouts/stdsimd-657360edbf4388eb/d687438/coresimd/src/x86/i586/tbm.rs:188:18
[INFO] [stderr]     |
[INFO] [stderr] 188 | #[target_feature(enable = "tbm")]
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #44839 <https://github.com/rust-lang/rust/issues/44839> for more information
[INFO] [stderr]     = help: add `#![feature(tbm_target_feature)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: the target feature `tbm` is currently unstable
[INFO] [stderr]    --> /opt/rustwide/cargo-home/git/checkouts/stdsimd-657360edbf4388eb/d687438/coresimd/src/x86/i586/tbm.rs:199:18
[INFO] [stderr]     |
[INFO] [stderr] 199 | #[target_feature(enable = "tbm")]
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #44839 <https://github.com/rust-lang/rust/issues/44839> for more information
[INFO] [stderr]     = help: add `#![feature(tbm_target_feature)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: the target feature `tbm` is currently unstable
[INFO] [stderr]    --> /opt/rustwide/cargo-home/git/checkouts/stdsimd-657360edbf4388eb/d687438/coresimd/src/x86/i586/tbm.rs:209:18
[INFO] [stderr]     |
[INFO] [stderr] 209 | #[target_feature(enable = "tbm")]
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #44839 <https://github.com/rust-lang/rust/issues/44839> for more information
[INFO] [stderr]     = help: add `#![feature(tbm_target_feature)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: the target feature `tbm` is currently unstable
[INFO] [stderr]    --> /opt/rustwide/cargo-home/git/checkouts/stdsimd-657360edbf4388eb/d687438/coresimd/src/x86/i586/tbm.rs:221:18
[INFO] [stderr]     |
[INFO] [stderr] 221 | #[target_feature(enable = "tbm")]
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #44839 <https://github.com/rust-lang/rust/issues/44839> for more information
[INFO] [stderr]     = help: add `#![feature(tbm_target_feature)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: the target feature `tbm` is currently unstable
[INFO] [stderr]    --> /opt/rustwide/cargo-home/git/checkouts/stdsimd-657360edbf4388eb/d687438/coresimd/src/x86/i586/tbm.rs:232:18
[INFO] [stderr]     |
[INFO] [stderr] 232 | #[target_feature(enable = "tbm")]
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #44839 <https://github.com/rust-lang/rust/issues/44839> for more information
[INFO] [stderr]     = help: add `#![feature(tbm_target_feature)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: the target feature `tbm` is currently unstable
[INFO] [stderr]    --> /opt/rustwide/cargo-home/git/checkouts/stdsimd-657360edbf4388eb/d687438/coresimd/src/x86/i586/tbm.rs:244:18
[INFO] [stderr]     |
[INFO] [stderr] 244 | #[target_feature(enable = "tbm")]
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #44839 <https://github.com/rust-lang/rust/issues/44839> for more information
[INFO] [stderr]     = help: add `#![feature(tbm_target_feature)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: the target feature `tbm` is currently unstable
[INFO] [stderr]    --> /opt/rustwide/cargo-home/git/checkouts/stdsimd-657360edbf4388eb/d687438/coresimd/src/x86/i586/tbm.rs:255:18
[INFO] [stderr]     |
[INFO] [stderr] 255 | #[target_feature(enable = "tbm")]
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #44839 <https://github.com/rust-lang/rust/issues/44839> for more information
[INFO] [stderr]     = help: add `#![feature(tbm_target_feature)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: the target feature `mmx` is currently unstable
[INFO] [stderr]   --> /opt/rustwide/cargo-home/git/checkouts/stdsimd-657360edbf4388eb/d687438/coresimd/src/x86/i686/mmx.rs:19:18
[INFO] [stderr]    |
[INFO] [stderr] 19 | #[target_feature(enable = "mmx")]
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #44839 <https://github.com/rust-lang/rust/issues/44839> for more information
[INFO] [stderr]    = help: add `#![feature(mmx_target_feature)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: the target feature `mmx` is currently unstable
[INFO] [stderr]   --> /opt/rustwide/cargo-home/git/checkouts/stdsimd-657360edbf4388eb/d687438/coresimd/src/x86/i686/mmx.rs:29:18
[INFO] [stderr]    |
[INFO] [stderr] 29 | #[target_feature(enable = "mmx")]
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #44839 <https://github.com/rust-lang/rust/issues/44839> for more information
[INFO] [stderr]    = help: add `#![feature(mmx_target_feature)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: the target feature `mmx` is currently unstable
[INFO] [stderr]   --> /opt/rustwide/cargo-home/git/checkouts/stdsimd-657360edbf4388eb/d687438/coresimd/src/x86/i686/mmx.rs:37:18
[INFO] [stderr]    |
[INFO] [stderr] 37 | #[target_feature(enable = "mmx")]
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #44839 <https://github.com/rust-lang/rust/issues/44839> for more information
[INFO] [stderr]    = help: add `#![feature(mmx_target_feature)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: the target feature `mmx` is currently unstable
[INFO] [stderr]   --> /opt/rustwide/cargo-home/git/checkouts/stdsimd-657360edbf4388eb/d687438/coresimd/src/x86/i686/mmx.rs:45:18
[INFO] [stderr]    |
[INFO] [stderr] 45 | #[target_feature(enable = "mmx")]
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #44839 <https://github.com/rust-lang/rust/issues/44839> for more information
[INFO] [stderr]    = help: add `#![feature(mmx_target_feature)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: the target feature `mmx` is currently unstable
[INFO] [stderr]   --> /opt/rustwide/cargo-home/git/checkouts/stdsimd-657360edbf4388eb/d687438/coresimd/src/x86/i686/mmx.rs:53:18
[INFO] [stderr]    |
[INFO] [stderr] 53 | #[target_feature(enable = "mmx")]
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #44839 <https://github.com/rust-lang/rust/issues/44839> for more information
[INFO] [stderr]    = help: add `#![feature(mmx_target_feature)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: the target feature `mmx` is currently unstable
[INFO] [stderr]   --> /opt/rustwide/cargo-home/git/checkouts/stdsimd-657360edbf4388eb/d687438/coresimd/src/x86/i686/mmx.rs:61:18
[INFO] [stderr]    |
[INFO] [stderr] 61 | #[target_feature(enable = "mmx")]
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #44839 <https://github.com/rust-lang/rust/issues/44839> for more information
[INFO] [stderr]    = help: add `#![feature(mmx_target_feature)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: the target feature `mmx` is currently unstable
[INFO] [stderr]   --> /opt/rustwide/cargo-home/git/checkouts/stdsimd-657360edbf4388eb/d687438/coresimd/src/x86/i686/mmx.rs:69:18
[INFO] [stderr]    |
[INFO] [stderr] 69 | #[target_feature(enable = "mmx")]
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #44839 <https://github.com/rust-lang/rust/issues/44839> for more information
[INFO] [stderr]    = help: add `#![feature(mmx_target_feature)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: the target feature `mmx` is currently unstable
[INFO] [stderr]   --> /opt/rustwide/cargo-home/git/checkouts/stdsimd-657360edbf4388eb/d687438/coresimd/src/x86/i686/mmx.rs:77:18
[INFO] [stderr]    |
[INFO] [stderr] 77 | #[target_feature(enable = "mmx")]
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #44839 <https://github.com/rust-lang/rust/issues/44839> for more information
[INFO] [stderr]    = help: add `#![feature(mmx_target_feature)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: the target feature `sse4a` is currently unstable
[INFO] [stderr]   --> /opt/rustwide/cargo-home/git/checkouts/stdsimd-657360edbf4388eb/d687438/coresimd/src/x86/i686/sse4a.rs:36:18
[INFO] [stderr]    |
[INFO] [stderr] 36 | #[target_feature(enable = "sse4a")]
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #44839 <https://github.com/rust-lang/rust/issues/44839> for more information
[INFO] [stderr]    = help: add `#![feature(sse4a_target_feature)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: the target feature `sse4a` is currently unstable
[INFO] [stderr]   --> /opt/rustwide/cargo-home/git/checkouts/stdsimd-657360edbf4388eb/d687438/coresimd/src/x86/i686/sse4a.rs:52:18
[INFO] [stderr]    |
[INFO] [stderr] 52 | #[target_feature(enable = "sse4a")]
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #44839 <https://github.com/rust-lang/rust/issues/44839> for more information
[INFO] [stderr]    = help: add `#![feature(sse4a_target_feature)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: the target feature `sse4a` is currently unstable
[INFO] [stderr]   --> /opt/rustwide/cargo-home/git/checkouts/stdsimd-657360edbf4388eb/d687438/coresimd/src/x86/i686/sse4a.rs:60:18
[INFO] [stderr]    |
[INFO] [stderr] 60 | #[target_feature(enable = "sse4a")]
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #44839 <https://github.com/rust-lang/rust/issues/44839> for more information
[INFO] [stderr]    = help: add `#![feature(sse4a_target_feature)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: the target feature `sse4a` is currently unstable
[INFO] [stderr]   --> /opt/rustwide/cargo-home/git/checkouts/stdsimd-657360edbf4388eb/d687438/coresimd/src/x86/i686/sse4a.rs:68:18
[INFO] [stderr]    |
[INFO] [stderr] 68 | #[target_feature(enable = "sse4a")]
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #44839 <https://github.com/rust-lang/rust/issues/44839> for more information
[INFO] [stderr]    = help: add `#![feature(sse4a_target_feature)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr]    Compiling serde_derive_internals v0.23.1
[INFO] [stderr]    Compiling structopt-derive v0.2.7
[INFO] [stderr] error: aborting due to 31 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0658`.
[INFO] [stderr] error: could not compile `coresimd`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "43729ea12893040002f145240b6e9022281d41ff956898f2d9a4246aff9b97be"`
[INFO] running `"docker" "rm" "-f" "43729ea12893040002f145240b6e9022281d41ff956898f2d9a4246aff9b97be"`
[INFO] [stdout] 43729ea12893040002f145240b6e9022281d41ff956898f2d9a4246aff9b97be
