[INFO] crate caper 0.11.2 is already in cache
[INFO] extracting crate caper 0.11.2 into work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/reg/caper/0.11.2
[INFO] extracting crate caper 0.11.2 into work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/reg/caper/0.11.2
[INFO] validating manifest of caper-0.11.2 on toolchain master#c43d03a19f326f4a323569328cc501e86eb6d22e
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of caper-0.11.2 on toolchain try#75eff020d0923c035c2fe220db4a0465cd847048
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing caper-0.11.2
[INFO] finished frobbing caper-0.11.2
[INFO] frobbed toml for caper-0.11.2 written to work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/reg/caper/0.11.2/Cargo.toml
[INFO] started frobbing caper-0.11.2
[INFO] finished frobbing caper-0.11.2
[INFO] frobbed toml for caper-0.11.2 written to work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/reg/caper/0.11.2/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking caper-0.11.2 against try#75eff020d0923c035c2fe220db4a0465cd847048 for pr-63565
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63565/worker-2/try#75eff020d0923c035c2fe220db4a0465cd847048:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/reg/caper/0.11.2:/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" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 45cbbd882ebaca3d00a621809321479173f66d95926162cf30ff6334699f3d2f
[INFO] running `"docker" "start" "-a" "45cbbd882ebaca3d00a621809321479173f66d95926162cf30ff6334699f3d2f"`
[INFO] [stderr]    Compiling cgmath v0.16.1
[INFO] [stderr]    Compiling imgui-sys v0.0.21
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]    Compiling glutin v0.17.0
[INFO] [stderr]    Compiling glium v0.22.0
[INFO] [stderr]     Checking alga v0.8.2
[INFO] [stderr]     Checking rusttype v0.7.7
[INFO] [stderr]     Checking rodio v0.8.1
[INFO] [stderr]     Checking smithay-client-toolkit v0.2.6
[INFO] [stderr]     Checking rayon v1.2.0
[INFO] [stderr]     Checking impose v0.3.0
[INFO] [stderr]     Checking nalgebra v0.17.3
[INFO] [stderr]     Checking winit v0.16.2
[INFO] [stderr]     Checking jpeg-decoder v0.1.16
[INFO] [stderr]     Checking volition v0.0.17
[INFO] [stderr]     Checking genmesh v0.6.2
[INFO] [stderr]     Checking obj v0.9.0
[INFO] [stderr]     Checking image v0.18.0
[INFO] [stderr]     Checking image v0.21.3
[INFO] [stderr]     Checking noise v0.5.1
[INFO] [stderr]     Checking glium_text_rusttype v0.3.2
[INFO] [stderr]     Checking imgui v0.0.21
[INFO] [stderr]     Checking imgui-glium-renderer v0.0.21
[INFO] [stderr] error[E0502]: cannot borrow `b` as immutable because it is also borrowed as mutable
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/nalgebra-0.17.3/src/sparse/cs_matrix_solve.rs:81:29
[INFO] [stderr]    |
[INFO] [stderr] 81 |                     b[i] -= b[j] * val;
[INFO] [stderr]    |                     --------^---------
[INFO] [stderr]    |                     |       |
[INFO] [stderr]    |                     |       immutable borrow occurs here
[INFO] [stderr]    |                     mutable borrow occurs here
[INFO] [stderr]    |                     mutable borrow later used here
[INFO] [stderr] 
[INFO] [stderr] error[E0502]: cannot borrow `b` as immutable because it is also borrowed as mutable
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/nalgebra-0.17.3/src/sparse/cs_matrix_solve.rs:122:39
[INFO] [stderr]     |
[INFO] [stderr] 122 |                         b[j] -= val * b[i];
[INFO] [stderr]     |                         --------------^---
[INFO] [stderr]     |                         |             |
[INFO] [stderr]     |                         |             immutable borrow occurs here
[INFO] [stderr]     |                         mutable borrow occurs here
[INFO] [stderr]     |                         mutable borrow later used here
[INFO] [stderr] 
[INFO] [stderr] error[E0502]: cannot borrow `workspace` as immutable because it is also borrowed as mutable
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/nalgebra-0.17.3/src/sparse/cs_matrix_solve.rs:181:33
[INFO] [stderr]     |
[INFO] [stderr] 181 |                 workspace[i] -= workspace[j] * val;
[INFO] [stderr]     |                 ----------------^^^^^^^^^---------
[INFO] [stderr]     |                 |               |
[INFO] [stderr]     |                 |               immutable borrow occurs here
[INFO] [stderr]     |                 mutable borrow occurs here
[INFO] [stderr]     |                 mutable borrow later used here
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0502`.
[INFO] [stderr] error: Could not compile `nalgebra`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "45cbbd882ebaca3d00a621809321479173f66d95926162cf30ff6334699f3d2f"`
[INFO] running `"docker" "rm" "-f" "45cbbd882ebaca3d00a621809321479173f66d95926162cf30ff6334699f3d2f"`
[INFO] [stdout] 45cbbd882ebaca3d00a621809321479173f66d95926162cf30ff6334699f3d2f