[INFO] fetching crate serde-json-core 0.6.0...
[INFO] building serde-json-core-0.6.0 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate serde-json-core 0.6.0 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate serde-json-core 0.6.0
[INFO] finished tweaking crates.io crate serde-json-core 0.6.0
[INFO] tweaked toml for crates.io crate serde-json-core 0.6.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate serde-json-core 0.6.0 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 21 packages to latest compatible versions
[INFO] [stderr]       Adding defmt v0.3.100 (available: v1.0.1)
[INFO] [stderr]       Adding heapless v0.8.0 (available: v0.9.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d33864080815d3883123e17141d2f821589a7367195d6e8358c0d163e0018f08
[INFO] running `Command { std: "docker" "start" "-a" "d33864080815d3883123e17141d2f821589a7367195d6e8358c0d163e0018f08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d33864080815d3883123e17141d2f821589a7367195d6e8358c0d163e0018f08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d33864080815d3883123e17141d2f821589a7367195d6e8358c0d163e0018f08", kill_on_drop: false }`
[INFO] [stdout] d33864080815d3883123e17141d2f821589a7367195d6e8358c0d163e0018f08
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c19e7df336b0622bbd5ff3d0009a33ad8486a3c1a4c83e5ecf9e4db681fae188
[INFO] running `Command { std: "docker" "start" "-a" "c19e7df336b0622bbd5ff3d0009a33ad8486a3c1a4c83e5ecf9e4db681fae188", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling heapless v0.8.0
[INFO] [stderr]    Compiling hash32 v0.3.1
[INFO] [stderr]    Compiling serde-json-core v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.36s
[INFO] running `Command { std: "docker" "inspect" "c19e7df336b0622bbd5ff3d0009a33ad8486a3c1a4c83e5ecf9e4db681fae188", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c19e7df336b0622bbd5ff3d0009a33ad8486a3c1a4c83e5ecf9e4db681fae188", kill_on_drop: false }`
[INFO] [stdout] c19e7df336b0622bbd5ff3d0009a33ad8486a3c1a4c83e5ecf9e4db681fae188
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 188e5cbabf514372e3914488d40617387bd136aca237e1e3c490a772e57d6941
[INFO] running `Command { std: "docker" "start" "-a" "188e5cbabf514372e3914488d40617387bd136aca237e1e3c490a772e57d6941", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde-json-core v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.57s
[INFO] running `Command { std: "docker" "inspect" "188e5cbabf514372e3914488d40617387bd136aca237e1e3c490a772e57d6941", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "188e5cbabf514372e3914488d40617387bd136aca237e1e3c490a772e57d6941", kill_on_drop: false }`
[INFO] [stdout] 188e5cbabf514372e3914488d40617387bd136aca237e1e3c490a772e57d6941