[INFO] fetching crate munch 0.7.0...
[INFO] checking munch-0.7.0 against master#da897dfb6daa268a965d2d73620316ba56020a19 for pr-76219
[INFO] extracting crate munch 0.7.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate munch 0.7.0 on toolchain da897dfb6daa268a965d2d73620316ba56020a19
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate munch 0.7.0
[INFO] finished tweaking crates.io crate munch 0.7.0
[INFO] tweaked toml for crates.io crate munch 0.7.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate munch 0.7.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f427818d8d21ddf429d6039fd57d548a0e1a3c5aa07883cfa613050412b6cd21
[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" "f427818d8d21ddf429d6039fd57d548a0e1a3c5aa07883cfa613050412b6cd21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f427818d8d21ddf429d6039fd57d548a0e1a3c5aa07883cfa613050412b6cd21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f427818d8d21ddf429d6039fd57d548a0e1a3c5aa07883cfa613050412b6cd21", kill_on_drop: false }`
[INFO] [stdout] f427818d8d21ddf429d6039fd57d548a0e1a3c5aa07883cfa613050412b6cd21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "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] a3bf2edc9554fefa6b3e440d861e6df927a2f7b92a8742f51933a843032ef4da
[INFO] running `Command { std: "docker" "start" "-a" "a3bf2edc9554fefa6b3e440d861e6df927a2f7b92a8742f51933a843032ef4da", kill_on_drop: false }`
[INFO] [stderr]     Checking munch v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.34s
[INFO] running `Command { std: "docker" "inspect" "a3bf2edc9554fefa6b3e440d861e6df927a2f7b92a8742f51933a843032ef4da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3bf2edc9554fefa6b3e440d861e6df927a2f7b92a8742f51933a843032ef4da", kill_on_drop: false }`
[INFO] [stdout] a3bf2edc9554fefa6b3e440d861e6df927a2f7b92a8742f51933a843032ef4da