[INFO] fetching crate silkworm_syn 0.1.0-dev.1...
[INFO] checking silkworm_syn-0.1.0-dev.1 against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] extracting crate silkworm_syn 0.1.0-dev.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate silkworm_syn 0.1.0-dev.1 on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate silkworm_syn 0.1.0-dev.1
[INFO] finished tweaking crates.io crate silkworm_syn 0.1.0-dev.1
[INFO] tweaked toml for crates.io crate silkworm_syn 0.1.0-dev.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "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] db5d4d5144f8d74130ec55daa6e04e2624e091b9aa6efb94e1afa22512d0fc18
[INFO] running `Command { std: "docker" "start" "-a" "db5d4d5144f8d74130ec55daa6e04e2624e091b9aa6efb94e1afa22512d0fc18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db5d4d5144f8d74130ec55daa6e04e2624e091b9aa6efb94e1afa22512d0fc18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db5d4d5144f8d74130ec55daa6e04e2624e091b9aa6efb94e1afa22512d0fc18", kill_on_drop: false }`
[INFO] [stdout] db5d4d5144f8d74130ec55daa6e04e2624e091b9aa6efb94e1afa22512d0fc18
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f625a7123513184fbde818e3ba6a41bc3f39c110261f808f371bc4ba0fdc8a4e
[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" "f625a7123513184fbde818e3ba6a41bc3f39c110261f808f371bc4ba0fdc8a4e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling arraydeque v0.4.5
[INFO] [stderr]     Checking typed-arena v2.0.1
[INFO] [stderr]     Checking silkworm_sourcemap v0.1.0-dev.1
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling hashbrown v0.7.2
[INFO] [stderr]     Checking pretty_assertions v0.6.1
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking backtrace v0.3.55
[INFO] [stderr]    Compiling syn v1.0.57
[INFO] [stderr]     Checking silkworm_err v0.1.0-dev.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]     Checking thiserror v1.0.23
[INFO] [stderr]     Checking silkworm_syn v0.1.0-dev.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.92s
[INFO] running `Command { std: "docker" "inspect" "f625a7123513184fbde818e3ba6a41bc3f39c110261f808f371bc4ba0fdc8a4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f625a7123513184fbde818e3ba6a41bc3f39c110261f808f371bc4ba0fdc8a4e", kill_on_drop: false }`
[INFO] [stdout] f625a7123513184fbde818e3ba6a41bc3f39c110261f808f371bc4ba0fdc8a4e