[INFO] fetching crate persistent_rope 0.1.3...
[INFO] checking persistent_rope-0.1.3 against master#b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18 for pr-79470
[INFO] extracting crate persistent_rope 0.1.3 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate persistent_rope 0.1.3 on toolchain b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "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-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "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] 37f74d17f61dc699e318d18da9b05bf43352201c6341a6baabe081f3ca89fdee
[INFO] running `Command { std: "docker" "start" "-a" "37f74d17f61dc699e318d18da9b05bf43352201c6341a6baabe081f3ca89fdee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "37f74d17f61dc699e318d18da9b05bf43352201c6341a6baabe081f3ca89fdee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37f74d17f61dc699e318d18da9b05bf43352201c6341a6baabe081f3ca89fdee", kill_on_drop: false }`
[INFO] [stdout] 37f74d17f61dc699e318d18da9b05bf43352201c6341a6baabe081f3ca89fdee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] b8cdac4ca54e5960760c3574ef537ef4720a48c0b533c318c949ed5daf070ed4
[INFO] running `Command { std: "docker" "start" "-a" "b8cdac4ca54e5960760c3574ef537ef4720a48c0b533c318c949ed5daf070ed4", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking unicode-segmentation v1.7.1
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking smallvec v1.5.1
[INFO] [stderr]     Checking macro-attr v0.2.0
[INFO] [stderr]     Checking bytecount v0.5.1
[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 13.55s
[INFO] running `Command { std: "docker" "inspect" "b8cdac4ca54e5960760c3574ef537ef4720a48c0b533c318c949ed5daf070ed4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8cdac4ca54e5960760c3574ef537ef4720a48c0b533c318c949ed5daf070ed4", kill_on_drop: false }`
[INFO] [stdout] b8cdac4ca54e5960760c3574ef537ef4720a48c0b533c318c949ed5daf070ed4