[INFO] fetching crate mashup-impl 0.1.12...
[INFO] checking mashup-impl-0.1.12 against master#0d37dca25a51fb900a402c94c8818ad1c2789e30 for pr-77526
[INFO] extracting crate mashup-impl 0.1.12 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate mashup-impl 0.1.12 on toolchain 0d37dca25a51fb900a402c94c8818ad1c2789e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mashup-impl 0.1.12
[INFO] finished tweaking crates.io crate mashup-impl 0.1.12
[INFO] tweaked toml for crates.io crate mashup-impl 0.1.12 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "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] 2066fd5bd745e8ec099c5d50af9f0097fbdd8a273fa18e59603c2009a4ec348a
[INFO] running `Command { std: "docker" "start" "-a" "2066fd5bd745e8ec099c5d50af9f0097fbdd8a273fa18e59603c2009a4ec348a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2066fd5bd745e8ec099c5d50af9f0097fbdd8a273fa18e59603c2009a4ec348a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2066fd5bd745e8ec099c5d50af9f0097fbdd8a273fa18e59603c2009a4ec348a", kill_on_drop: false }`
[INFO] [stdout] 2066fd5bd745e8ec099c5d50af9f0097fbdd8a273fa18e59603c2009a4ec348a
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "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] 1cd2ba9e044813c30a290f38d345e4c385fc1cb69b8e55a9391f0f2ad5569dab
[INFO] running `Command { std: "docker" "start" "-a" "1cd2ba9e044813c30a290f38d345e4c385fc1cb69b8e55a9391f0f2ad5569dab", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro-hack-impl v0.4.2
[INFO] [stderr]     Checking proc-macro2 v0.4.30
[INFO] [stderr]     Checking proc-macro-hack v0.4.2
[INFO] [stderr]     Checking mashup-impl v0.1.12 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.16s
[INFO] running `Command { std: "docker" "inspect" "1cd2ba9e044813c30a290f38d345e4c385fc1cb69b8e55a9391f0f2ad5569dab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1cd2ba9e044813c30a290f38d345e4c385fc1cb69b8e55a9391f0f2ad5569dab", kill_on_drop: false }`
[INFO] [stdout] 1cd2ba9e044813c30a290f38d345e4c385fc1cb69b8e55a9391f0f2ad5569dab