[INFO] cloning repository https://github.com/poljska/efrei-qs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/poljska/efrei-qs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpoljska%2Fefrei-qs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpoljska%2Fefrei-qs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 430ff844039791b0b1836f5bc0db7d6abf9b0836
[INFO] checking poljska/efrei-qs against try#ff044a3d65d25a17c3e14c1530004e1540179ba7 for pr-78338
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpoljska%2Fefrei-qs" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/poljska/efrei-qs on toolchain ff044a3d65d25a17c3e14c1530004e1540179ba7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff044a3d65d25a17c3e14c1530004e1540179ba7" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/poljska/efrei-qs
[INFO] finished tweaking git repo https://github.com/poljska/efrei-qs
[INFO] tweaked toml for git repo https://github.com/poljska/efrei-qs written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/poljska/efrei-qs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff044a3d65d25a17c3e14c1530004e1540179ba7" "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 rug v1.8.0
[INFO] [stderr]   Downloaded az v0.3.1
[INFO] [stderr]   Downloaded gmp-mpfr-sys v1.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ff044a3d65d25a17c3e14c1530004e1540179ba7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dc0f64c6f4b970d1c5882683e1a060b9c5301c4359f7829e48a6c31d64ccc35e
[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" "dc0f64c6f4b970d1c5882683e1a060b9c5301c4359f7829e48a6c31d64ccc35e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc0f64c6f4b970d1c5882683e1a060b9c5301c4359f7829e48a6c31d64ccc35e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc0f64c6f4b970d1c5882683e1a060b9c5301c4359f7829e48a6c31d64ccc35e", kill_on_drop: false }`
[INFO] [stdout] dc0f64c6f4b970d1c5882683e1a060b9c5301c4359f7829e48a6c31d64ccc35e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ff044a3d65d25a17c3e14c1530004e1540179ba7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 869e3be364f0dcef9f49f302265e4b7736e790575e43ec8c8a2db43025cdab80
[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" "869e3be364f0dcef9f49f302265e4b7736e790575e43ec8c8a2db43025cdab80", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.2.2
[INFO] [stderr]    Compiling rug v1.8.0
[INFO] [stderr]     Checking az v0.3.1
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "869e3be364f0dcef9f49f302265e4b7736e790575e43ec8c8a2db43025cdab80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "869e3be364f0dcef9f49f302265e4b7736e790575e43ec8c8a2db43025cdab80", kill_on_drop: false }`
[INFO] [stdout] 869e3be364f0dcef9f49f302265e4b7736e790575e43ec8c8a2db43025cdab80