[INFO] updating cached repository https://github.com/Ploppz/play-acrobot
[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] 25bef8ff184c57e8b28a987adca837409cfbac6a
[INFO] checking Ploppz/play-acrobot against try#f149601db42efe10ece8b284ab681fd4a6fcb89c for pr-68766
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPloppz%2Fplay-acrobot" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Ploppz/play-acrobot on toolchain f149601db42efe10ece8b284ab681fd4a6fcb89c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Ploppz/play-acrobot
[INFO] finished tweaking git repo https://github.com/Ploppz/play-acrobot
[INFO] tweaked toml for git repo https://github.com/Ploppz/play-acrobot written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/Ploppz/play-acrobot already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/Ploppz/rsrl`
[INFO] [stderr] error: the lock file /workspace/builds/worker-7/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/Ploppz/rsrl`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "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] 6bc0335ea0608c22f2501e3c1613b83c7079a3cf1d02d6cc5f075ae3a8a6de39
[INFO] running `"docker" "start" "-a" "6bc0335ea0608c22f2501e3c1613b83c7079a3cf1d02d6cc5f075ae3a8a6de39"`
[INFO] [stderr]    Compiling ndarray v0.12.1
[INFO] [stderr]    Compiling sdl2-sys v0.31.0
[INFO] [stderr]    Compiling gl_generator v0.9.0
[INFO] [stderr]     Checking generic-array v0.8.3
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking lapacke v0.2.0
[INFO] [stderr]    Compiling derive-new v0.5.8
[INFO] [stderr]     Checking gfx_core v0.8.3
[INFO] [stderr]     Checking slog-term v2.5.0
[INFO] [stderr]     Checking nalgebra v0.14.4
[INFO] [stderr]    Compiling gfx_gl v0.5.0
[INFO] [stderr]     Checking sdl2 v0.31.0
[INFO] [stderr]    Compiling procedurals v0.3.1
[INFO] [stderr]     Checking spaces v4.7.1
[INFO] [stderr]     Checking ndarray-linalg v0.10.0
[INFO] [stderr]     Checking lfa v0.8.2
[INFO] [stderr]     Checking gfx v0.17.1
[INFO] [stderr]     Checking gfx_device_gl v0.15.5
[INFO] [stderr]     Checking gfx_window_sdl v0.8.0
[INFO] [stderr]     Checking gfx_glyph v0.10.2
[INFO] [stderr] error[E0502]: cannot borrow `*self` as immutable because it is also borrowed as mutable
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/nalgebra-0.14.4/src/core/cg.rs:292:44
[INFO] [stderr]     |
[INFO] [stderr] 292 |                 self[(j, i)] += shift[j] * self[(D::dim() - 1, 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: aborting due to previous error
[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" "6bc0335ea0608c22f2501e3c1613b83c7079a3cf1d02d6cc5f075ae3a8a6de39"`
[INFO] running `"docker" "rm" "-f" "6bc0335ea0608c22f2501e3c1613b83c7079a3cf1d02d6cc5f075ae3a8a6de39"`
[INFO] [stdout] 6bc0335ea0608c22f2501e3c1613b83c7079a3cf1d02d6cc5f075ae3a8a6de39