[INFO] fetching crate persistent_rope 0.1.3...
[INFO] checking persistent_rope-0.1.3 against master#2ad5292aea6328113b55968b4322528d48261316 for pr-80243
[INFO] extracting crate persistent_rope 0.1.3 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate persistent_rope 0.1.3 on toolchain 2ad5292aea6328113b55968b4322528d48261316
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate persistent_rope 0.1.3
[INFO] finished tweaking crates.io crate persistent_rope 0.1.3
[INFO] tweaked toml for crates.io crate persistent_rope 0.1.3 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "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" "+2ad5292aea6328113b55968b4322528d48261316" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+2ad5292aea6328113b55968b4322528d48261316" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f7c2156e2b748255b6eb23716fd48f7ba9a4e01e46b2f211a2887822be585ca1
[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" "f7c2156e2b748255b6eb23716fd48f7ba9a4e01e46b2f211a2887822be585ca1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f7c2156e2b748255b6eb23716fd48f7ba9a4e01e46b2f211a2887822be585ca1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7c2156e2b748255b6eb23716fd48f7ba9a4e01e46b2f211a2887822be585ca1", kill_on_drop: false }`
[INFO] [stdout] f7c2156e2b748255b6eb23716fd48f7ba9a4e01e46b2f211a2887822be585ca1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6ba1330629f1e8e62512cccf769e5df25206e88bfaa65f79b9036e4e1959475d
[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" "6ba1330629f1e8e62512cccf769e5df25206e88bfaa65f79b9036e4e1959475d", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking unicode-segmentation v1.7.1
[INFO] [stderr]     Checking macro-attr v0.2.0
[INFO] [stderr]     Checking bytecount v0.5.1
[INFO] [stderr]     Checking smallvec v1.5.1
[INFO] [stderr]     Checking persistent_rope v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking ropey v1.2.0
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]    Compiling newtype_derive v0.1.6
[INFO] [stderr]     Checking an-rope v0.3.1
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking xi-rope v0.3.0
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.07s
[INFO] running `Command { std: "docker" "inspect" "6ba1330629f1e8e62512cccf769e5df25206e88bfaa65f79b9036e4e1959475d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ba1330629f1e8e62512cccf769e5df25206e88bfaa65f79b9036e4e1959475d", kill_on_drop: false }`
[INFO] [stdout] 6ba1330629f1e8e62512cccf769e5df25206e88bfaa65f79b9036e4e1959475d