[INFO] fetching crate argmin_core 0.2.5...
[INFO] testing argmin_core-0.2.5 against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] extracting crate argmin_core 0.2.5 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate argmin_core 0.2.5 on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate argmin_core 0.2.5
[INFO] finished tweaking crates.io crate argmin_core 0.2.5
[INFO] tweaked toml for crates.io crate argmin_core 0.2.5 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 81a5a4fe609865499f550dcc64972b05b4f4bcfce6726fb70d5b959ed8e757e5
[INFO] running `Command { std: "docker" "start" "-a" "81a5a4fe609865499f550dcc64972b05b4f4bcfce6726fb70d5b959ed8e757e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "81a5a4fe609865499f550dcc64972b05b4f4bcfce6726fb70d5b959ed8e757e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81a5a4fe609865499f550dcc64972b05b4f4bcfce6726fb70d5b959ed8e757e5", kill_on_drop: false }`
[INFO] [stdout] 81a5a4fe609865499f550dcc64972b05b4f4bcfce6726fb70d5b959ed8e757e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 99d77e930d70c134e257bdf3a67eb46746b1eeb36b123a709270d7179c47060f
[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" "99d77e930d70c134e257bdf3a67eb46746b1eeb36b123a709270d7179c47060f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling openblas-src v0.9.0
[INFO] [stderr]    Compiling ndarray v0.14.0
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling slog v2.7.0
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling erased-serde v0.3.16
[INFO] [stderr]    Compiling take_mut v0.2.2
[INFO] [stderr]    Compiling finitediff v0.1.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.3.2
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling matrixmultiply v0.2.4
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling cblas-sys v0.1.4
[INFO] [stderr]    Compiling lapack-sys v0.12.1
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]    Compiling term v0.7.0
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand_xorshift v0.3.0
[INFO] [stderr]    Compiling object v0.25.3
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling slog-async v2.6.0
[INFO] [stderr]    Compiling approx v0.4.0
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling rand_distr v0.4.1
[INFO] [stderr]    Compiling thiserror v1.0.26
[INFO] [stderr]    Compiling paste v0.1.18
[INFO] [stderr]    Compiling slog-term v2.8.0
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling backtrace v0.3.60
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling num-complex v0.3.1
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling lapack v0.17.0
[INFO] [stderr]    Compiling cauchy v0.3.0
[INFO] [stderr]    Compiling num v0.3.1
[INFO] [stderr]    Compiling num v0.2.1
[INFO] [stderr]    Compiling slog-json v2.3.0
[INFO] [stderr]    Compiling lax v0.1.0
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "99d77e930d70c134e257bdf3a67eb46746b1eeb36b123a709270d7179c47060f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99d77e930d70c134e257bdf3a67eb46746b1eeb36b123a709270d7179c47060f", kill_on_drop: false }`
[INFO] [stdout] 99d77e930d70c134e257bdf3a67eb46746b1eeb36b123a709270d7179c47060f