[INFO] fetching crate combine-proc-macro 0.3.1...
[INFO] checking combine-proc-macro-0.3.1 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate combine-proc-macro 0.3.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate combine-proc-macro 0.3.1 on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate combine-proc-macro 0.3.1
[INFO] finished tweaking crates.io crate combine-proc-macro 0.3.1
[INFO] tweaked toml for crates.io crate combine-proc-macro 0.3.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ascii v0.9.3
[INFO] [stderr]   Downloaded combine v3.8.1
[INFO] [stderr]   Downloaded unreachable v1.0.0
[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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "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] 50d5f8e12a520938bc8b743eb3365a7ea8200986fffcd640ed01e7217075586f
[INFO] running `Command { std: "docker" "start" "-a" "50d5f8e12a520938bc8b743eb3365a7ea8200986fffcd640ed01e7217075586f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "50d5f8e12a520938bc8b743eb3365a7ea8200986fffcd640ed01e7217075586f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50d5f8e12a520938bc8b743eb3365a7ea8200986fffcd640ed01e7217075586f", kill_on_drop: false }`
[INFO] [stdout] 50d5f8e12a520938bc8b743eb3365a7ea8200986fffcd640ed01e7217075586f
[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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 27b9b13fcc64e345d11979b67113e7bfba671842a736e26f9672c289dc861d5e
[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" "27b9b13fcc64e345d11979b67113e7bfba671842a736e26f9672c289dc861d5e", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]     Checking ascii v0.9.3
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking proc-macro2 v0.4.30
[INFO] [stderr]     Checking combine v3.8.1
[INFO] [stderr]     Checking combine-proc-macro v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.61s
[INFO] running `Command { std: "docker" "inspect" "27b9b13fcc64e345d11979b67113e7bfba671842a736e26f9672c289dc861d5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27b9b13fcc64e345d11979b67113e7bfba671842a736e26f9672c289dc861d5e", kill_on_drop: false }`
[INFO] [stdout] 27b9b13fcc64e345d11979b67113e7bfba671842a736e26f9672c289dc861d5e