[INFO] fetching crate system-interface 0.5.3...
[INFO] checking system-interface-0.5.3 against try#9cfe725f0995b018340c519db1b2f3cf8a7e0631 for pr-81174
[INFO] extracting crate system-interface 0.5.3 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate system-interface 0.5.3 on toolchain 9cfe725f0995b018340c519db1b2f3cf8a7e0631
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate system-interface 0.5.3
[INFO] finished tweaking crates.io crate system-interface 0.5.3
[INFO] tweaked toml for crates.io crate system-interface 0.5.3 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cvt v0.1.1
[INFO] [stderr]   Downloaded winx v0.22.0
[INFO] [stderr]   Downloaded fs-set-times v0.2.3
[INFO] [stderr]   Downloaded cap-primitives v0.11.0
[INFO] [stderr]   Downloaded char-device v0.0.0
[INFO] [stderr]   Downloaded cap-fs-ext v0.11.0
[INFO] [stderr]   Downloaded arf-strings v0.3.0
[INFO] [stderr]   Downloaded cap-tempfile v0.11.0
[INFO] [stderr]   Downloaded cap-std v0.11.0
[INFO] [stderr]   Downloaded unsafe-io v0.2.1
[INFO] [stderr]   Downloaded posish v0.5.9
[INFO] [stderr]   Downloaded socketpair v0.3.1
[INFO] [stderr]   Downloaded os_pipe v0.9.2
[INFO] [stderr]   Downloaded rustc_version v0.3.3
[INFO] [stderr]   Downloaded cap-async-std v0.11.0
[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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2e28c6ab66669bd525c5bcc340766cbc006813051c993dce7b1ce2d4713dcc5f
[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" "2e28c6ab66669bd525c5bcc340766cbc006813051c993dce7b1ce2d4713dcc5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2e28c6ab66669bd525c5bcc340766cbc006813051c993dce7b1ce2d4713dcc5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e28c6ab66669bd525c5bcc340766cbc006813051c993dce7b1ce2d4713dcc5f", kill_on_drop: false }`
[INFO] [stdout] 2e28c6ab66669bd525c5bcc340766cbc006813051c993dce7b1ce2d4713dcc5f
[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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "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] e26fc4625c01d5e551a052f14fcdd8f51a75f5be0a7b5ec72a1c330cd17961c8
[INFO] running `Command { std: "docker" "start" "-a" "e26fc4625c01d5e551a052f14fcdd8f51a75f5be0a7b5ec72a1c330cd17961c8", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking ipnet v2.3.0
[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 getrandom v0.2.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rand_core v0.6.1
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking posish v0.5.9
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]     Checking fs-set-times v0.2.3
[INFO] [stderr]    Compiling unsafe-io v0.2.1
[INFO] [stderr]    Compiling system-interface v0.5.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking cap-primitives v0.11.0
[INFO] [stderr]     Checking cap-std v0.11.0
[INFO] [stderr]     Checking cap-fs-ext v0.11.0
[INFO] [stderr]     Checking cap-tempfile v0.11.0
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.32s
[INFO] running `Command { std: "docker" "inspect" "e26fc4625c01d5e551a052f14fcdd8f51a75f5be0a7b5ec72a1c330cd17961c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e26fc4625c01d5e551a052f14fcdd8f51a75f5be0a7b5ec72a1c330cd17961c8", kill_on_drop: false }`
[INFO] [stdout] e26fc4625c01d5e551a052f14fcdd8f51a75f5be0a7b5ec72a1c330cd17961c8