[INFO] cloning repository https://github.com/M1cha/rust-verbug
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/M1cha/rust-verbug" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FM1cha%2Frust-verbug", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FM1cha%2Frust-verbug'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 226ff6df6ef83cf95c6f9635e4aa87a6f930bf46
[INFO] testing M1cha/rust-verbug against try#a7ce54db9b096bd1098d07c645b489195a667c9f for pr-137940
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FM1cha%2Frust-verbug" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/M1cha/rust-verbug on toolchain a7ce54db9b096bd1098d07c645b489195a667c9f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a7ce54db9b096bd1098d07c645b489195a667c9f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/M1cha/rust-verbug
[INFO] finished tweaking git repo https://github.com/M1cha/rust-verbug
[INFO] tweaked toml for git repo https://github.com/M1cha/rust-verbug written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/M1cha/rust-verbug already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a7ce54db9b096bd1098d07c645b489195a667c9f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 31 packages to latest compatible versions
[INFO] [stderr]       Adding approx v0.3.2
[INFO] [stderr]       Adding autocfg v1.4.0
[INFO] [stderr]       Adding bitflags v1.3.2
[INFO] [stderr]       Adding blas-src v0.2.1
[INFO] [stderr]       Adding cauchy v0.2.2
[INFO] [stderr]       Adding cblas-sys v0.1.4
[INFO] [stderr]       Adding cloudabi v0.0.3
[INFO] [stderr]       Adding fuchsia-cprng v0.1.1
[INFO] [stderr]       Adding lapack-src v0.6.0
[INFO] [stderr]       Adding lapacke v0.2.0
[INFO] [stderr]       Adding lapacke-sys v0.1.4
[INFO] [stderr]       Adding libc v0.2.171
[INFO] [stderr]       Adding matrixmultiply v0.2.4
[INFO] [stderr]       Adding ndarray v0.13.1
[INFO] [stderr]       Adding ndarray-linalg v0.12.1 (available: v0.17.0)
[INFO] [stderr]       Adding num-complex v0.2.4
[INFO] [stderr]       Adding num-integer v0.1.46
[INFO] [stderr]       Adding num-traits v0.2.19
[INFO] [stderr]       Adding proc-macro2 v1.0.94
[INFO] [stderr]       Adding quote v1.0.40
[INFO] [stderr]       Adding rand v0.5.6
[INFO] [stderr]       Adding rand_core v0.3.1
[INFO] [stderr]       Adding rand_core v0.4.2
[INFO] [stderr]       Adding rawpointer v0.2.1
[INFO] [stderr]       Adding serde v1.0.219
[INFO] [stderr]       Adding serde_derive v1.0.219
[INFO] [stderr]       Adding syn v2.0.100
[INFO] [stderr]       Adding unicode-ident v1.0.18
[INFO] [stderr]       Adding winapi v0.3.9
[INFO] [stderr]       Adding winapi-i686-pc-windows-gnu v0.4.0
[INFO] [stderr]       Adding winapi-x86_64-pc-windows-gnu v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+a7ce54db9b096bd1098d07c645b489195a667c9f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b191c7fade1f8aae45289a6f30e42ff1e82d243f3607e2c48d49d7bf2ff992d4
[INFO] running `Command { std: "docker" "start" "-a" "b191c7fade1f8aae45289a6f30e42ff1e82d243f3607e2c48d49d7bf2ff992d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b191c7fade1f8aae45289a6f30e42ff1e82d243f3607e2c48d49d7bf2ff992d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b191c7fade1f8aae45289a6f30e42ff1e82d243f3607e2c48d49d7bf2ff992d4", kill_on_drop: false }`
[INFO] [stdout] b191c7fade1f8aae45289a6f30e42ff1e82d243f3607e2c48d49d7bf2ff992d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+a7ce54db9b096bd1098d07c645b489195a667c9f" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c114b6612cbafb82d33d8e5a3cbd298eb2274e11b58323ab83f7b0c4c6094aa4
[INFO] running `Command { std: "docker" "start" "-a" "c114b6612cbafb82d33d8e5a3cbd298eb2274e11b58323ab83f7b0c4c6094aa4", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling openblas-src v0.9.0
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling ndarray v0.13.1
[INFO] [stderr]    Compiling blas-src v0.2.1
[INFO] [stderr]    Compiling lapack-src v0.6.0
[INFO] [stderr]    Compiling matrixmultiply v0.2.4
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling cblas-sys v0.1.4
[INFO] [stderr]    Compiling lapacke-sys v0.1.4
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling cauchy v0.2.2
[INFO] [stderr]    Compiling lapacke v0.2.0
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "c114b6612cbafb82d33d8e5a3cbd298eb2274e11b58323ab83f7b0c4c6094aa4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c114b6612cbafb82d33d8e5a3cbd298eb2274e11b58323ab83f7b0c4c6094aa4", kill_on_drop: false }`
[INFO] [stdout] c114b6612cbafb82d33d8e5a3cbd298eb2274e11b58323ab83f7b0c4c6094aa4