[INFO] cloning repository https://github.com/pierremarc/cardboard
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pierremarc/cardboard" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpierremarc%2Fcardboard", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpierremarc%2Fcardboard'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b0605833f655a5175189371d7c5369548855e794
[INFO] checking pierremarc/cardboard against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpierremarc%2Fcardboard" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pierremarc/cardboard on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pierremarc/cardboard
[INFO] finished tweaking git repo https://github.com/pierremarc/cardboard
[INFO] tweaked toml for git repo https://github.com/pierremarc/cardboard written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/pierremarc/cardboard already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded approx v0.3.0
[INFO] [stderr]   Downloaded cairo-rs v0.5.0
[INFO] [stderr]   Downloaded generic-array v0.11.1
[INFO] [stderr]   Downloaded gobject-sys v0.7.0
[INFO] [stderr]   Downloaded alga v0.7.2
[INFO] [stderr]   Downloaded png v0.13.1
[INFO] [stderr]   Downloaded glib-sys v0.7.0
[INFO] [stderr]   Downloaded xmlparser v0.6.1
[INFO] [stderr]   Downloaded nalgebra v0.16.8
[INFO] [stderr]   Downloaded syn v0.15.18
[INFO] [stderr]   Downloaded glib v0.6.0
[INFO] [stderr]   Downloaded cairo-sys-rs v0.7.0
[INFO] [stderr]   Downloaded geo-types v0.2.0
[INFO] [stderr]   Downloaded svgtypes v0.2.0
[INFO] [stderr]   Downloaded libm v0.1.2
[INFO] [stderr]   Downloaded geojson v0.13.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6e178c137243c9268307197f717ee1e2716b1226a8120d45e659b845d468c15b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6e178c137243c9268307197f717ee1e2716b1226a8120d45e659b845d468c15b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6e178c137243c9268307197f717ee1e2716b1226a8120d45e659b845d468c15b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e178c137243c9268307197f717ee1e2716b1226a8120d45e659b845d468c15b", kill_on_drop: false }`
[INFO] [stdout] 6e178c137243c9268307197f717ee1e2716b1226a8120d45e659b845d468c15b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 747aefd1d4e00f8278a3a5a9ce7f042d87796a60c6a5d5aa075e12f1dbd830e4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "747aefd1d4e00f8278a3a5a9ce7f042d87796a60c6a5d5aa075e12f1dbd830e4", kill_on_drop: false }`
[INFO] [stderr]    Compiling cairo-rs v0.5.0
[INFO] [stderr]     Checking xmlparser v0.6.1
[INFO] [stderr]    Compiling glib-sys v0.7.0
[INFO] [stderr]    Compiling gobject-sys v0.7.0
[INFO] [stderr]    Compiling cairo-sys-rs v0.7.0
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]    Compiling syn v0.15.18
[INFO] [stderr]     Checking approx v0.3.0
[INFO] [stderr]     Checking geo-types v0.2.0
[INFO] [stderr]     Checking float-cmp v0.4.0
[INFO] [stderr]     Checking rayon v1.0.3
[INFO] [stderr]     Checking png v0.13.1
[INFO] [stderr]     Checking sdl2 v0.31.0
[INFO] [stderr]     Checking alga v0.7.2
[INFO] [stderr]     Checking geojson v0.13.0
[INFO] [stderr]     Checking svgtypes v0.2.0
[INFO] [stderr]     Checking nalgebra v0.16.8
[INFO] [stderr]     Checking glib v0.6.0
[INFO] [stderr]    Compiling serde_derive v1.0.80
[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-0.16.8/src/base/cg.rs:291:44
[INFO] [stdout]     |
[INFO] [stdout] 291 |                 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`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "747aefd1d4e00f8278a3a5a9ce7f042d87796a60c6a5d5aa075e12f1dbd830e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "747aefd1d4e00f8278a3a5a9ce7f042d87796a60c6a5d5aa075e12f1dbd830e4", kill_on_drop: false }`
[INFO] [stdout] 747aefd1d4e00f8278a3a5a9ce7f042d87796a60c6a5d5aa075e12f1dbd830e4