[INFO] fetching crate mextk-sys 0.1.0...
[INFO] checking mextk-sys-0.1.0 against try#99a443d6903f71d521237d8acb5a3016b534d17b for pr-83354
[INFO] extracting crate mextk-sys 0.1.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate mextk-sys 0.1.0 on toolchain 99a443d6903f71d521237d8acb5a3016b534d17b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mextk-sys 0.1.0
[INFO] finished tweaking crates.io crate mextk-sys 0.1.0
[INFO] tweaked toml for crates.io crate mextk-sys 0.1.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mextk-libc v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+99a443d6903f71d521237d8acb5a3016b534d17b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6f37f7012cd007dd5ace608c6b7d3fd61c061b0cc17c436cd85ef0e1a727ba69
[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" "6f37f7012cd007dd5ace608c6b7d3fd61c061b0cc17c436cd85ef0e1a727ba69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f37f7012cd007dd5ace608c6b7d3fd61c061b0cc17c436cd85ef0e1a727ba69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f37f7012cd007dd5ace608c6b7d3fd61c061b0cc17c436cd85ef0e1a727ba69", kill_on_drop: false }`
[INFO] [stdout] 6f37f7012cd007dd5ace608c6b7d3fd61c061b0cc17c436cd85ef0e1a727ba69
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+99a443d6903f71d521237d8acb5a3016b534d17b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4b43eb55ded50c38702b8d78d655579f1a6faee6250c44044a32e218e33cebdc
[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" "4b43eb55ded50c38702b8d78d655579f1a6faee6250c44044a32e218e33cebdc", kill_on_drop: false }`
[INFO] [stderr]     Checking mextk-libc v0.1.0
[INFO] [stderr]     Checking mextk-sys v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `mextk-sys`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name mextk_sys --edition=2018 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --test -C metadata=5f80e5f07ba81f5d -C extra-filename=-5f80e5f07ba81f5d --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern mextk_libc=/opt/rustwide/target/debug/deps/libmextk_libc-c1633a81cdb85c25.rmeta --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "4b43eb55ded50c38702b8d78d655579f1a6faee6250c44044a32e218e33cebdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b43eb55ded50c38702b8d78d655579f1a6faee6250c44044a32e218e33cebdc", kill_on_drop: false }`
[INFO] [stdout] 4b43eb55ded50c38702b8d78d655579f1a6faee6250c44044a32e218e33cebdc