[INFO] fetching crate kalc-lib 1.5.1...
[INFO] checking kalc-lib-1.5.1 against try#6284d7b4bd27983dba388146648ab844ca7d032f for pr-152971
[INFO] extracting crate kalc-lib 1.5.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate kalc-lib 1.5.1
[INFO] finished tweaking crates.io crate kalc-lib 1.5.1
[INFO] tweaked toml for crates.io crate kalc-lib 1.5.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate kalc-lib 1.5.1 on toolchain 6284d7b4bd27983dba388146648ab844ca7d032f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6284d7b4bd27983dba388146648ab844ca7d032f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate kalc-lib 1.5.1 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" "+6284d7b4bd27983dba388146648ab844ca7d032f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+6284d7b4bd27983dba388146648ab844ca7d032f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d58dc20758e6ca008393f46a606956d2a0bdf63424ad6ad9d3fb49554806e844
[INFO] running `Command { std: "docker" "start" "-a" "d58dc20758e6ca008393f46a606956d2a0bdf63424ad6ad9d3fb49554806e844", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d58dc20758e6ca008393f46a606956d2a0bdf63424ad6ad9d3fb49554806e844", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d58dc20758e6ca008393f46a606956d2a0bdf63424ad6ad9d3fb49554806e844", kill_on_drop: false }`
[INFO] [stdout] d58dc20758e6ca008393f46a606956d2a0bdf63424ad6ad9d3fb49554806e844
[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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+6284d7b4bd27983dba388146648ab844ca7d032f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c8704726f3e1942ea97fd6e5c0251cfd0a29f807e2b7c192c5e8a6df0fcd273f
[INFO] running `Command { std: "docker" "start" "-a" "c8704726f3e1942ea97fd6e5c0251cfd0a29f807e2b7c192c5e8a6df0fcd273f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.6.5
[INFO] [stderr]    Compiling az v1.2.1
[INFO] [stderr]    Compiling rug v1.27.0
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]     Checking fastrand v2.3.0
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]    Compiling libm v0.2.15
[INFO] [stderr]    Compiling fastnum v0.2.9
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking crossbeam-deque v0.8.6
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]     Checking serde-big-array v0.5.1
[INFO] [stderr]     Checking bnum v0.12.1
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "c8704726f3e1942ea97fd6e5c0251cfd0a29f807e2b7c192c5e8a6df0fcd273f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8704726f3e1942ea97fd6e5c0251cfd0a29f807e2b7c192c5e8a6df0fcd273f", kill_on_drop: false }`
[INFO] [stdout] c8704726f3e1942ea97fd6e5c0251cfd0a29f807e2b7c192c5e8a6df0fcd273f