[INFO] fetching crate extc 0.0.0-RESERVE...
[INFO] checking extc-0.0.0-RESERVE against try#07fecb9cf34c4979a772ba38c99d6d9144768413 for pr-87710
[INFO] extracting crate extc 0.0.0-RESERVE into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate extc 0.0.0-RESERVE on toolchain 07fecb9cf34c4979a772ba38c99d6d9144768413
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate extc 0.0.0-RESERVE
[INFO] finished tweaking crates.io crate extc 0.0.0-RESERVE
[INFO] tweaked toml for crates.io crate extc 0.0.0-RESERVE written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate extc 0.0.0-RESERVE already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8f84b8b465f432080f0276eb42376fb2034c4469abfbd5e478af23238354341d
[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" "8f84b8b465f432080f0276eb42376fb2034c4469abfbd5e478af23238354341d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f84b8b465f432080f0276eb42376fb2034c4469abfbd5e478af23238354341d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f84b8b465f432080f0276eb42376fb2034c4469abfbd5e478af23238354341d", kill_on_drop: false }`
[INFO] [stdout] 8f84b8b465f432080f0276eb42376fb2034c4469abfbd5e478af23238354341d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "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] d77ef2a5646704d7afba1a4a78a06e5875ff6634bee380d8fd0853e35971e604
[INFO] running `Command { std: "docker" "start" "-a" "d77ef2a5646704d7afba1a4a78a06e5875ff6634bee380d8fd0853e35971e604", kill_on_drop: false }`
[INFO] [stderr]     Checking extc v0.0.0-RESERVE (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "d77ef2a5646704d7afba1a4a78a06e5875ff6634bee380d8fd0853e35971e604", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d77ef2a5646704d7afba1a4a78a06e5875ff6634bee380d8fd0853e35971e604", kill_on_drop: false }`
[INFO] [stdout] d77ef2a5646704d7afba1a4a78a06e5875ff6634bee380d8fd0853e35971e604