[INFO] crate sprs 0.7.1 is already in cache
[INFO] checking sprs-0.7.1 against master#fdc0011561c6365c596dfd8fa1ef388162bc89c7 for pr-66504-1
[INFO] extracting crate sprs 0.7.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate sprs 0.7.1 on toolchain fdc0011561c6365c596dfd8fa1ef388162bc89c7
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate sprs 0.7.1
[INFO] finished tweaking crates.io crate sprs 0.7.1
[INFO] tweaked toml for crates.io crate sprs 0.7.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate sprs 0.7.1 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "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] f2f717d809f35733e3481beb9e212daed64307867d99770a93a7b4bbb0bcd2df
[INFO] running `"docker" "start" "-a" "f2f717d809f35733e3481beb9e212daed64307867d99770a93a7b4bbb0bcd2df"`
[INFO] [stderr]     Checking itertools v0.8.1
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking num-complex v0.2.3
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking bincode v1.2.0
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking ndarray v0.13.0
[INFO] [stderr]     Checking alga v0.9.2
[INFO] [stderr]     Checking sprs v0.7.1 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0432]: unresolved import `alga::general::Inverse`
[INFO] [stderr]  --> benches/suite.rs:6:31
[INFO] [stderr]   |
[INFO] [stderr] 6 | use alga::general::{Additive, Inverse};
[INFO] [stderr]   |                               ^^^^^^^ no `Inverse` in `general`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0432`.
[INFO] [stderr] error: could not compile `sprs`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: unused arithmetic operation that must be used
[INFO] [stderr]   --> benches/sparse_dense_products.rs:35:9
[INFO] [stderr]    |
[INFO] [stderr] 35 |         &a * &w;
[INFO] [stderr]    |         ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "f2f717d809f35733e3481beb9e212daed64307867d99770a93a7b4bbb0bcd2df"`
[INFO] running `"docker" "rm" "-f" "f2f717d809f35733e3481beb9e212daed64307867d99770a93a7b4bbb0bcd2df"`
[INFO] [stdout] f2f717d809f35733e3481beb9e212daed64307867d99770a93a7b4bbb0bcd2df