[INFO] fetching crate dune-explore 0.0.0...
[INFO] checking dune-explore-0.0.0 against master#7f5a42b073dc2bee2aa625052eb066ee07072048 for pr-78991
[INFO] extracting crate dune-explore 0.0.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate dune-explore 0.0.0 on toolchain 7f5a42b073dc2bee2aa625052eb066ee07072048
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dune-explore 0.0.0
[INFO] finished tweaking crates.io crate dune-explore 0.0.0
[INFO] tweaked toml for crates.io crate dune-explore 0.0.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 741c83ca7d870697d2ce894e8297fe9b54c07f5d6f73e071ebe7cfdcf397ae63
[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" "741c83ca7d870697d2ce894e8297fe9b54c07f5d6f73e071ebe7cfdcf397ae63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "741c83ca7d870697d2ce894e8297fe9b54c07f5d6f73e071ebe7cfdcf397ae63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "741c83ca7d870697d2ce894e8297fe9b54c07f5d6f73e071ebe7cfdcf397ae63", kill_on_drop: false }`
[INFO] [stdout] 741c83ca7d870697d2ce894e8297fe9b54c07f5d6f73e071ebe7cfdcf397ae63
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ae4c09b74b9571fb8e7e0a6b78fe6758bbcb30e7c321988057bf1cdb9d27b428
[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" "ae4c09b74b9571fb8e7e0a6b78fe6758bbcb30e7c321988057bf1cdb9d27b428", kill_on_drop: false }`
[INFO] [stderr]     Checking dune-explore v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "ae4c09b74b9571fb8e7e0a6b78fe6758bbcb30e7c321988057bf1cdb9d27b428", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae4c09b74b9571fb8e7e0a6b78fe6758bbcb30e7c321988057bf1cdb9d27b428", kill_on_drop: false }`
[INFO] [stdout] ae4c09b74b9571fb8e7e0a6b78fe6758bbcb30e7c321988057bf1cdb9d27b428