[INFO] fetching crate cexpr 0.4.0...
[INFO] checking cexpr-0.4.0 against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] extracting crate cexpr 0.4.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate cexpr 0.4.0 on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cexpr 0.4.0
[INFO] finished tweaking crates.io crate cexpr 0.4.0
[INFO] tweaked toml for crates.io crate cexpr 0.4.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] feead9c806a38cfd6fb677599e082ca6b4d52c539c58554068ccaf9f6995e6a9
[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" "feead9c806a38cfd6fb677599e082ca6b4d52c539c58554068ccaf9f6995e6a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "feead9c806a38cfd6fb677599e082ca6b4d52c539c58554068ccaf9f6995e6a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "feead9c806a38cfd6fb677599e082ca6b4d52c539c58554068ccaf9f6995e6a9", kill_on_drop: false }`
[INFO] [stdout] feead9c806a38cfd6fb677599e082ca6b4d52c539c58554068ccaf9f6995e6a9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 63b3df72afec730261f90999f5f00f070d23da6a6214d6a6d5fad09e4fcda05d
[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" "63b3df72afec730261f90999f5f00f070d23da6a6214d6a6d5fad09e4fcda05d", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling clang-sys v0.28.1
[INFO] [stderr]     Checking cexpr v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.05s
[INFO] running `Command { std: "docker" "inspect" "63b3df72afec730261f90999f5f00f070d23da6a6214d6a6d5fad09e4fcda05d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63b3df72afec730261f90999f5f00f070d23da6a6214d6a6d5fad09e4fcda05d", kill_on_drop: false }`
[INFO] [stdout] 63b3df72afec730261f90999f5f00f070d23da6a6214d6a6d5fad09e4fcda05d