[INFO] fetching crate json_macro 0.1.1...
[INFO] checking json_macro-0.1.1 against master#0dce3f606e05cffab7361c132a399d3550ab0df8 for pr-78376
[INFO] extracting crate json_macro 0.1.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate json_macro 0.1.1 on toolchain 0dce3f606e05cffab7361c132a399d3550ab0df8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate json_macro 0.1.1
[INFO] finished tweaking crates.io crate json_macro 0.1.1
[INFO] tweaked toml for crates.io crate json_macro 0.1.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "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" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 62cba854a0d7744055a8ae4a0f076052ff8d7af186d59cf2f9eccac4a5df467b
[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" "62cba854a0d7744055a8ae4a0f076052ff8d7af186d59cf2f9eccac4a5df467b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "62cba854a0d7744055a8ae4a0f076052ff8d7af186d59cf2f9eccac4a5df467b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62cba854a0d7744055a8ae4a0f076052ff8d7af186d59cf2f9eccac4a5df467b", kill_on_drop: false }`
[INFO] [stdout] 62cba854a0d7744055a8ae4a0f076052ff8d7af186d59cf2f9eccac4a5df467b
[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" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 769cc34341daa526d5d5c7d1666d4c26cd0b7d54747832aa502613dc442c514e
[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" "769cc34341daa526d5d5c7d1666d4c26cd0b7d54747832aa502613dc442c514e", kill_on_drop: false }`
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking json_macro v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.88s
[INFO] running `Command { std: "docker" "inspect" "769cc34341daa526d5d5c7d1666d4c26cd0b7d54747832aa502613dc442c514e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "769cc34341daa526d5d5c7d1666d4c26cd0b7d54747832aa502613dc442c514e", kill_on_drop: false }`
[INFO] [stdout] 769cc34341daa526d5d5c7d1666d4c26cd0b7d54747832aa502613dc442c514e