[INFO] fetching crate casimir-fdfd 0.2.0...
[INFO] testing casimir-fdfd-0.2.0 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate casimir-fdfd 0.2.0 into /workspace/builds/worker-57/source
[INFO] validating manifest of crates.io crate casimir-fdfd 0.2.0 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate casimir-fdfd 0.2.0
[INFO] finished tweaking crates.io crate casimir-fdfd 0.2.0
[INFO] tweaked toml for crates.io crate casimir-fdfd 0.2.0 written to /workspace/builds/worker-57/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b71c22fee90172a225be11487a79680775913d870bedbefb24439a41bbc4082e
[INFO] running `Command { std: "docker" "start" "-a" "b71c22fee90172a225be11487a79680775913d870bedbefb24439a41bbc4082e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b71c22fee90172a225be11487a79680775913d870bedbefb24439a41bbc4082e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b71c22fee90172a225be11487a79680775913d870bedbefb24439a41bbc4082e", kill_on_drop: false }`
[INFO] [stdout] b71c22fee90172a225be11487a79680775913d870bedbefb24439a41bbc4082e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1fd41df066d2319b91e19f149392ad812a69db60dad7c2da65be36f0f070d776
[INFO] running `Command { std: "docker" "start" "-a" "1fd41df066d2319b91e19f149392ad812a69db60dad7c2da65be36f0f070d776", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling matrixmultiply v0.1.15
[INFO] [stderr]    Compiling gimli v0.26.1
[INFO] [stderr]    Compiling rawpointer v0.1.0
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling backtrace v0.3.63
[INFO] [stderr]    Compiling generic-array v0.11.2
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling pbr v1.0.4
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling addr2line v0.17.0
[INFO] [stderr]    Compiling object v0.27.1
[INFO] [stderr]    Compiling serde_json v1.0.71
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling approx v0.2.1
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling alga v0.6.0
[INFO] [stderr]    Compiling nalgebra v0.15.3
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stdout] error[E0502]: cannot borrow `*self` as immutable because it is also borrowed as mutable
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/nalgebra-0.15.3/src/base/cg.rs:292:44
[INFO] [stdout]     |
[INFO] [stdout] 292 |                 self[(j, i)] += shift[j] * self[(D::dim() - 1, i)];
[INFO] [stdout]     |                 ---------------------------^^^^-------------------
[INFO] [stdout]     |                 |                          |
[INFO] [stdout]     |                 |                          immutable borrow occurs here
[INFO] [stdout]     |                 mutable borrow occurs here
[INFO] [stdout]     |                 mutable borrow later used here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0502`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `nalgebra` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "1fd41df066d2319b91e19f149392ad812a69db60dad7c2da65be36f0f070d776", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fd41df066d2319b91e19f149392ad812a69db60dad7c2da65be36f0f070d776", kill_on_drop: false }`
[INFO] [stdout] 1fd41df066d2319b91e19f149392ad812a69db60dad7c2da65be36f0f070d776