[INFO] cloning repository https://github.com/das67333/linear_algebra
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/das67333/linear_algebra" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdas67333%2Flinear_algebra", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdas67333%2Flinear_algebra'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] da141fa23bd727c97c952d50e6a93757bd1601bb
[INFO] testing das67333/linear_algebra against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdas67333%2Flinear_algebra" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/das67333/linear_algebra 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 git repo https://github.com/das67333/linear_algebra
[INFO] finished tweaking git repo https://github.com/das67333/linear_algebra
[INFO] tweaked toml for git repo https://github.com/das67333/linear_algebra written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/das67333/linear_algebra already has a lockfile, it will not be regenerated
[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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 6b9b54c8e122814b0ef5dbfcc6f51c163c5f55847877c7157e01f2dca672b0f5
[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" "6b9b54c8e122814b0ef5dbfcc6f51c163c5f55847877c7157e01f2dca672b0f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6b9b54c8e122814b0ef5dbfcc6f51c163c5f55847877c7157e01f2dca672b0f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b9b54c8e122814b0ef5dbfcc6f51c163c5f55847877c7157e01f2dca672b0f5", kill_on_drop: false }`
[INFO] [stdout] 6b9b54c8e122814b0ef5dbfcc6f51c163c5f55847877c7157e01f2dca672b0f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 87ee2939af3fd7d67d36d528cd4ab39e101b1951f3ac946c61fd12e1243f36f3
[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" "87ee2939af3fd7d67d36d528cd4ab39e101b1951f3ac946c61fd12e1243f36f3", kill_on_drop: false }`
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.4.7
[INFO] [stderr]    Compiling az v1.1.2
[INFO] [stderr]    Compiling rug v1.13.0
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "87ee2939af3fd7d67d36d528cd4ab39e101b1951f3ac946c61fd12e1243f36f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87ee2939af3fd7d67d36d528cd4ab39e101b1951f3ac946c61fd12e1243f36f3", kill_on_drop: false }`
[INFO] [stdout] 87ee2939af3fd7d67d36d528cd4ab39e101b1951f3ac946c61fd12e1243f36f3