[INFO] fetching crate system-interface 0.6.3...
[INFO] checking system-interface-0.6.3 against try#4a04890980766cc79878135f5ade8c0c4321e943 for pr-65819
[INFO] extracting crate system-interface 0.6.3 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate system-interface 0.6.3 on toolchain 4a04890980766cc79878135f5ade8c0c4321e943
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate system-interface 0.6.3
[INFO] finished tweaking crates.io crate system-interface 0.6.3
[INFO] tweaked toml for crates.io crate system-interface 0.6.3 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "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 os_pipe v0.9.2
[INFO] [stderr]   Downloaded maybe-owned v0.3.4
[INFO] [stderr]   Downloaded cap-fs-ext v0.13.9
[INFO] [stderr]   Downloaded cap-primitives v0.13.9
[INFO] [stderr]   Downloaded cap-std v0.13.9
[INFO] [stderr]   Downloaded cap-tempfile v0.13.9
[INFO] [stderr]   Downloaded char-device v0.3.2
[INFO] [stderr]   Downloaded rustc_version v0.3.3
[INFO] [stderr]   Downloaded posish v0.6.1
[INFO] [stderr]   Downloaded ssh2 v0.9.1
[INFO] [stderr]   Downloaded unsafe-io v0.6.2
[INFO] [stderr]   Downloaded winx v0.23.0
[INFO] [stderr]   Downloaded arf-strings v0.3.0
[INFO] [stderr]   Downloaded cap-async-std v0.13.9
[INFO] [stderr]   Downloaded socketpair v0.6.2
[INFO] [stderr]   Downloaded fs-set-times v0.3.1
[INFO] [stderr]   Downloaded io-close v0.3.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "metadata" "--no-deps" "--format-version=1", 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] 749ab565cde73421146df9d82baec8b8fe734d06fa055aca824bf7f24c7e9934
[INFO] running `Command { std: "docker" "start" "-a" "749ab565cde73421146df9d82baec8b8fe734d06fa055aca824bf7f24c7e9934", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "749ab565cde73421146df9d82baec8b8fe734d06fa055aca824bf7f24c7e9934", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "749ab565cde73421146df9d82baec8b8fe734d06fa055aca824bf7f24c7e9934", kill_on_drop: false }`
[INFO] [stdout] 749ab565cde73421146df9d82baec8b8fe734d06fa055aca824bf7f24c7e9934
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "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] 205fa25e97543def80216fd74f40f152e93b469a43c31649a3b8951151d269bf
[INFO] running `Command { std: "docker" "start" "-a" "205fa25e97543def80216fd74f40f152e93b469a43c31649a3b8951151d269bf", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]     Checking maybe-owned v0.3.4
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]     Checking errno v0.2.7
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]    Compiling unsafe-io v0.6.2
[INFO] [stderr]    Compiling cap-primitives v0.13.9
[INFO] [stderr]    Compiling cap-std v0.13.9
[INFO] [stderr]    Compiling system-interface v0.6.3 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling cap-fs-ext v0.13.9
[INFO] [stderr]     Checking posish v0.6.1
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking fs-set-times v0.3.1
[INFO] [stderr]     Checking cap-tempfile v0.13.9
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.13s
[INFO] running `Command { std: "docker" "inspect" "205fa25e97543def80216fd74f40f152e93b469a43c31649a3b8951151d269bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "205fa25e97543def80216fd74f40f152e93b469a43c31649a3b8951151d269bf", kill_on_drop: false }`
[INFO] [stdout] 205fa25e97543def80216fd74f40f152e93b469a43c31649a3b8951151d269bf