[INFO] fetching crate perde-core 0.0.1...
[INFO] checking perde-core-0.0.1 against master#f5f33ec0e0455eefa72fc5567eb1280a4d5ee206 for pr-83312
[INFO] extracting crate perde-core 0.0.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate perde-core 0.0.1 on toolchain f5f33ec0e0455eefa72fc5567eb1280a4d5ee206
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate perde-core 0.0.1
[INFO] finished tweaking crates.io crate perde-core 0.0.1
[INFO] tweaked toml for crates.io crate perde-core 0.0.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2342cbc6c64534ff93861b049036b733679e6736e6099dc1e8cf5b3478750010
[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" "2342cbc6c64534ff93861b049036b733679e6736e6099dc1e8cf5b3478750010", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2342cbc6c64534ff93861b049036b733679e6736e6099dc1e8cf5b3478750010", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2342cbc6c64534ff93861b049036b733679e6736e6099dc1e8cf5b3478750010", kill_on_drop: false }`
[INFO] [stdout] 2342cbc6c64534ff93861b049036b733679e6736e6099dc1e8cf5b3478750010
[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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b9b17f632f91597eadf63b675581897ad0838aa750c580d40a5b781a27050a98
[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" "b9b17f632f91597eadf63b675581897ad0838aa750c580d40a5b781a27050a98", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling libc v0.2.91
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling unindent v0.1.7
[INFO] [stderr]    Compiling inventory v0.1.10
[INFO] [stderr]    Compiling pyo3 v0.12.4
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking inflections v1.1.1
[INFO] [stderr]     Checking bytecount v0.6.2
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]     Checking paste v0.1.18
[INFO] [stderr]    Compiling pyo3-derive-backend v0.12.4
[INFO] [stderr]    Compiling ghost v0.1.2
[INFO] [stderr]    Compiling inventory-impl v0.1.10
[INFO] [stderr]    Compiling ctor v0.1.20
[INFO] [stderr]    Compiling indoc-impl v0.3.6
[INFO] [stderr]    Compiling derive-new v0.5.9
[INFO] [stderr]    Compiling pyo3cls v0.12.4
[INFO] [stderr]     Checking indoc v0.3.6
[INFO] [stderr]     Checking perde-core v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.00s
[INFO] running `Command { std: "docker" "inspect" "b9b17f632f91597eadf63b675581897ad0838aa750c580d40a5b781a27050a98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9b17f632f91597eadf63b675581897ad0838aa750c580d40a5b781a27050a98", kill_on_drop: false }`
[INFO] [stdout] b9b17f632f91597eadf63b675581897ad0838aa750c580d40a5b781a27050a98