[INFO] updating cached repository woowe/test_vec_bin_op
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/woowe/test_vec_bin_op
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/woowe/test_vec_bin_op" "work/ex/beta-1.38-1/sources/1.37.0/gh/woowe/test_vec_bin_op"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/woowe/test_vec_bin_op'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/woowe/test_vec_bin_op" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/woowe/test_vec_bin_op"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/woowe/test_vec_bin_op'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 007a214d164240985c07e121964753a7e7e43cf4
[INFO] sha for GitHub repo woowe/test_vec_bin_op: 007a214d164240985c07e121964753a7e7e43cf4
[INFO] validating manifest of woowe/test_vec_bin_op on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of woowe/test_vec_bin_op on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing woowe/test_vec_bin_op
[INFO] finished frobbing woowe/test_vec_bin_op
[INFO] frobbed toml for woowe/test_vec_bin_op written to work/ex/beta-1.38-1/sources/1.37.0/gh/woowe/test_vec_bin_op/Cargo.toml
[INFO] started frobbing woowe/test_vec_bin_op
[INFO] finished frobbing woowe/test_vec_bin_op
[INFO] frobbed toml for woowe/test_vec_bin_op written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/woowe/test_vec_bin_op/Cargo.toml
[INFO] crate woowe/test_vec_bin_op already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing woowe/test_vec_bin_op against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/woowe/test_vec_bin_op:/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=warn" "-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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] fe8fd3c8870c56d36885ba1ef2f2cd83b78b623ea06693ebf5d893d70464f758
[INFO] running `"docker" "start" "-a" "fe8fd3c8870c56d36885ba1ef2f2cd83b78b623ea06693ebf5d893d70464f758"`
[INFO] [stderr]    Compiling num_cpus v1.0.0
[INFO] [stderr]    Compiling rayon v0.4.2 (https://github.com/nikomatsakis/rayon.git#98fbe954)
[INFO] [stderr]    Compiling test_vec_bin_op v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(test)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `test::Bencher`
[INFO] [stderr]  --> src/main.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use test::Bencher;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/main.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | / macro_rules! unroll_by_4 {
[INFO] [stderr] 14 | |     ($ntimes:expr, $e:expr) => {{
[INFO] [stderr] 15 | |         let k = $ntimes;
[INFO] [stderr] 16 | |         for _ in 0..k / 4 {
[INFO] [stderr] ...  |
[INFO] [stderr] 22 | |     }}
[INFO] [stderr] 23 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `test_vec_bin_op`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "fe8fd3c8870c56d36885ba1ef2f2cd83b78b623ea06693ebf5d893d70464f758"`
[INFO] running `"docker" "rm" "-f" "fe8fd3c8870c56d36885ba1ef2f2cd83b78b623ea06693ebf5d893d70464f758"`
[INFO] [stdout] fe8fd3c8870c56d36885ba1ef2f2cd83b78b623ea06693ebf5d893d70464f758