[INFO] cloning repository https://github.com/Lisoph/the_city
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Lisoph/the_city" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLisoph%2Fthe_city", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLisoph%2Fthe_city'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 28d808b54123aafbfd600951bb7363e0eefa310c
[INFO] testing Lisoph/the_city against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLisoph%2Fthe_city" "/workspace/builds/worker-97/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-97/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Lisoph/the_city on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Lisoph/the_city
[INFO] finished tweaking git repo https://github.com/Lisoph/the_city
[INFO] tweaked toml for git repo https://github.com/Lisoph/the_city written to /workspace/builds/worker-97/source/Cargo.toml
[INFO] crate git repo https://github.com/Lisoph/the_city already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 950040f7dbafdbf4c593882b7c18a51e7a8ddcabaac89073ab1288d98c46cef1
[INFO] running `Command { std: "docker" "start" "-a" "950040f7dbafdbf4c593882b7c18a51e7a8ddcabaac89073ab1288d98c46cef1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "950040f7dbafdbf4c593882b7c18a51e7a8ddcabaac89073ab1288d98c46cef1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "950040f7dbafdbf4c593882b7c18a51e7a8ddcabaac89073ab1288d98c46cef1", kill_on_drop: false }`
[INFO] [stdout] 950040f7dbafdbf4c593882b7c18a51e7a8ddcabaac89073ab1288d98c46cef1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6dd17133f386a619932e3ce204f6d6ab79dee7d6a055c0e024215e6e6f1f596e
[INFO] running `Command { std: "docker" "start" "-a" "6dd17133f386a619932e3ce204f6d6ab79dee7d6a055c0e024215e6e6f1f596e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling libc v0.2.43
[INFO] [stderr]    Compiling cfg-if v0.1.5
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling nodrop v0.1.12
[INFO] [stderr]    Compiling num-complex v0.2.0
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]    Compiling scopeguard v0.3.3
[INFO] [stderr]    Compiling matrixmultiply v0.1.14
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling rand_core v0.3.0
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling memoffset v0.2.1
[INFO] [stderr]    Compiling libm v0.1.2
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling rawpointer v0.1.0
[INFO] [stderr]    Compiling rayon v1.0.2
[INFO] [stderr]    Compiling thecity v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling bitflags v0.7.0
[INFO] [stderr]    Compiling slab v0.4.1
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling either v1.5.0
[INFO] [stderr]    Compiling wavefront_obj v5.1.0
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]    Compiling crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling arrayvec v0.4.7
[INFO] [stderr]    Compiling sdl2-sys v0.31.0
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling rand_core v0.2.2
[INFO] [stderr]    Compiling smallvec v0.6.5
[INFO] [stderr]    Compiling rand v0.4.3
[INFO] [stderr]    Compiling rand v0.5.5
[INFO] [stderr]    Compiling num_cpus v1.8.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling rand v0.3.22
[INFO] [stderr]    Compiling generic-array v0.11.1
[INFO] [stderr]    Compiling approx v0.3.0
[INFO] [stderr]    Compiling alga v0.7.2
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling sdl2 v0.31.0
[INFO] [stderr]    Compiling nalgebra v0.16.4
[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-0.16.4/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" "6dd17133f386a619932e3ce204f6d6ab79dee7d6a055c0e024215e6e6f1f596e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6dd17133f386a619932e3ce204f6d6ab79dee7d6a055c0e024215e6e6f1f596e", kill_on_drop: false }`
[INFO] [stdout] 6dd17133f386a619932e3ce204f6d6ab79dee7d6a055c0e024215e6e6f1f596e