[INFO] fetching crate xtr 0.1.5...
[INFO] testing xtr-0.1.5 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate xtr 0.1.5 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate xtr 0.1.5 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate xtr 0.1.5
[INFO] finished tweaking crates.io crate xtr 0.1.5
[INFO] tweaked toml for crates.io crate xtr 0.1.5 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate xtr 0.1.5 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.10
[INFO] [stderr]   Downloaded libc v0.2.69
[INFO] [stderr]   Downloaded chrono v0.4.11
[INFO] [stderr]   Downloaded hermit-abi v0.1.11
[INFO] [stderr]   Downloaded anyhow v1.0.28
[INFO] [stderr]   Downloaded gettext-sys v0.19.9
[INFO] [stderr]   Downloaded locale_config v0.2.3
[INFO] [stderr]   Downloaded gettext-rs v0.4.4
[INFO] [stderr]   Downloaded tr v0.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "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] d2eb1546d9cb8138dc0a6f272d7b3d7410a78ba9b1fcc11e8e93e31fa7d23890
[INFO] running `Command { std: "docker" "start" "-a" "d2eb1546d9cb8138dc0a6f272d7b3d7410a78ba9b1fcc11e8e93e31fa7d23890", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d2eb1546d9cb8138dc0a6f272d7b3d7410a78ba9b1fcc11e8e93e31fa7d23890", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2eb1546d9cb8138dc0a6f272d7b3d7410a78ba9b1fcc11e8e93e31fa7d23890", kill_on_drop: false }`
[INFO] [stdout] d2eb1546d9cb8138dc0a6f272d7b3d7410a78ba9b1fcc11e8e93e31fa7d23890
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6085ff348c70bae5f1d1d8b2029698537187c3c7062aad9308478d87f4426556
[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" "6085ff348c70bae5f1d1d8b2029698537187c3c7062aad9308478d87f4426556", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling anyhow v1.0.28
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling aho-corasick v0.7.10
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling gettext-sys v0.19.9
[INFO] [stderr]    Compiling chrono v0.4.11
[INFO] [stderr]    Compiling regex v1.3.6
[INFO] [stderr]    Compiling locale_config v0.2.3
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "6085ff348c70bae5f1d1d8b2029698537187c3c7062aad9308478d87f4426556", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6085ff348c70bae5f1d1d8b2029698537187c3c7062aad9308478d87f4426556", kill_on_drop: false }`
[INFO] [stdout] 6085ff348c70bae5f1d1d8b2029698537187c3c7062aad9308478d87f4426556