[INFO] fetching crate mithril-stm 0.3.1...
[INFO] testing mithril-stm-0.3.1 against master#23949593103d03a82c7ebc2e84434ce6c6edc561 for pr-115235
[INFO] extracting crate mithril-stm 0.3.1 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate mithril-stm 0.3.1 on toolchain 23949593103d03a82c7ebc2e84434ce6c6edc561
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+23949593103d03a82c7ebc2e84434ce6c6edc561" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mithril-stm 0.3.1
[INFO] finished tweaking crates.io crate mithril-stm 0.3.1
[INFO] tweaked toml for crates.io crate mithril-stm 0.3.1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate mithril-stm 0.3.1 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" "+23949593103d03a82c7ebc2e84434ce6c6edc561" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rug v1.21.0
[INFO] [stderr]   Downloaded gmp-mpfr-sys v1.6.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+23949593103d03a82c7ebc2e84434ce6c6edc561" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b2b704f70020d36bd0ad371a91780f6b671aa73352cd6f0c4d5488b16326827c
[INFO] running `Command { std: "docker" "start" "-a" "b2b704f70020d36bd0ad371a91780f6b671aa73352cd6f0c4d5488b16326827c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b2b704f70020d36bd0ad371a91780f6b671aa73352cd6f0c4d5488b16326827c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2b704f70020d36bd0ad371a91780f6b671aa73352cd6f0c4d5488b16326827c", kill_on_drop: false }`
[INFO] [stdout] b2b704f70020d36bd0ad371a91780f6b671aa73352cd6f0c4d5488b16326827c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+23949593103d03a82c7ebc2e84434ce6c6edc561" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 521a7c9552ef5a3c458ed0e0847ef20f76aac7b3651f1d35906c53d730974f6b
[INFO] running `Command { std: "docker" "start" "-a" "521a7c9552ef5a3c458ed0e0847ef20f76aac7b3651f1d35906c53d730974f6b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.6.1
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.15
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.29
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]    Compiling az v1.2.1
[INFO] [stderr]    Compiling crossbeam-channel v0.5.8
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling crossbeam-deque v0.8.3
[INFO] [stderr]    Compiling thiserror v1.0.47
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling subtle v2.5.0
[INFO] [stderr]    Compiling rug v1.21.0
[INFO] [stderr]    Compiling threadpool v1.8.1
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling blake2 v0.10.6
[INFO] [stderr]    Compiling blst v0.3.11
[INFO] [stderr]    Compiling rayon v1.7.0
[INFO] [stderr]    Compiling zeroize_derive v1.4.2
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]    Compiling thiserror-impl v1.0.47
[INFO] [stderr]    Compiling zeroize v1.6.0
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "521a7c9552ef5a3c458ed0e0847ef20f76aac7b3651f1d35906c53d730974f6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "521a7c9552ef5a3c458ed0e0847ef20f76aac7b3651f1d35906c53d730974f6b", kill_on_drop: false }`
[INFO] [stdout] 521a7c9552ef5a3c458ed0e0847ef20f76aac7b3651f1d35906c53d730974f6b