[INFO] fetching crate w5500-regsim 0.1.0-alpha.4...
[INFO] checking w5500-regsim-0.1.0-alpha.4 against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] extracting crate w5500-regsim 0.1.0-alpha.4 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate w5500-regsim 0.1.0-alpha.4 on toolchain 6f8a6450478f69b8510c8976ab6c2a70b3b0e47c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate w5500-regsim 0.1.0-alpha.4
[INFO] finished tweaking crates.io crate w5500-regsim 0.1.0-alpha.4
[INFO] tweaked toml for crates.io crate w5500-regsim 0.1.0-alpha.4 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate w5500-regsim 0.1.0-alpha.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded stderrlog v0.5.1
[INFO] [stderr]   Downloaded endian-type v0.1.2
[INFO] [stderr]   Downloaded pin-project-lite v0.2.5
[INFO] [stderr]   Downloaded trust-dns-client v0.20.0
[INFO] [stderr]   Downloaded nibble_vec v0.1.0
[INFO] [stderr]   Downloaded radix_trie v0.2.1
[INFO] [stderr]   Downloaded w5500-hl v0.3.0
[INFO] [stderr]   Downloaded w5500-ll v0.7.0
[INFO] [stderr]   Downloaded nb v1.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5fef3a574482024299f57d775ba865a80b46bca379e222ae96faaa1b00fdad9c
[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" "5fef3a574482024299f57d775ba865a80b46bca379e222ae96faaa1b00fdad9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5fef3a574482024299f57d775ba865a80b46bca379e222ae96faaa1b00fdad9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fef3a574482024299f57d775ba865a80b46bca379e222ae96faaa1b00fdad9c", kill_on_drop: false }`
[INFO] [stdout] 5fef3a574482024299f57d775ba865a80b46bca379e222ae96faaa1b00fdad9c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6f4421b2cebcd00d541d4f1a13579f37ec56a425001e8dc6839335af4e1377b3
[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" "6f4421b2cebcd00d541d4f1a13579f37ec56a425001e8dc6839335af4e1377b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking w5500-ll v0.7.0
[INFO] [stderr]    Compiling httparse v1.3.5
[INFO] [stderr]     Checking data-encoding v2.3.2
[INFO] [stderr]    Compiling tokio v1.2.0
[INFO] [stderr]     Checking futures-channel v0.3.13
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking futures-util v0.3.13
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking getrandom v0.2.2
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking mio v0.7.9
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking nibble_vec v0.1.0
[INFO] [stderr]     Checking w5500-hl v0.3.0
[INFO] [stderr]     Checking w5500-regsim v0.1.0-alpha.4 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]     Checking radix_trie v0.2.1
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking stderrlog v0.5.1
[INFO] [stderr]     Checking pulldown-cmark v0.8.0
[INFO] [stderr]     Checking version-sync v0.9.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling enum-as-inner v0.3.3
[INFO] [stderr]    Compiling async-trait v0.1.42
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking trust-dns-proto v0.20.0
[INFO] [stderr]     Checking trust-dns-client v0.20.0
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 58.40s
[INFO] running `Command { std: "docker" "inspect" "6f4421b2cebcd00d541d4f1a13579f37ec56a425001e8dc6839335af4e1377b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f4421b2cebcd00d541d4f1a13579f37ec56a425001e8dc6839335af4e1377b3", kill_on_drop: false }`
[INFO] [stdout] 6f4421b2cebcd00d541d4f1a13579f37ec56a425001e8dc6839335af4e1377b3