[INFO] fetching crate silkworm 0.1.0-dev.0...
[INFO] checking silkworm-0.1.0-dev.0 against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] extracting crate silkworm 0.1.0-dev.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate silkworm 0.1.0-dev.0 on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate silkworm 0.1.0-dev.0
[INFO] finished tweaking crates.io crate silkworm 0.1.0-dev.0
[INFO] tweaked toml for crates.io crate silkworm 0.1.0-dev.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded silkworm_syn v0.1.0-dev.1
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "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] 37a2ebf74969a6735cb2a19d90a7b0a2804f7e8a6d3f3a5ed6509deb8958a5ed
[INFO] running `Command { std: "docker" "start" "-a" "37a2ebf74969a6735cb2a19d90a7b0a2804f7e8a6d3f3a5ed6509deb8958a5ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "37a2ebf74969a6735cb2a19d90a7b0a2804f7e8a6d3f3a5ed6509deb8958a5ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37a2ebf74969a6735cb2a19d90a7b0a2804f7e8a6d3f3a5ed6509deb8958a5ed", kill_on_drop: false }`
[INFO] [stdout] 37a2ebf74969a6735cb2a19d90a7b0a2804f7e8a6d3f3a5ed6509deb8958a5ed
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "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] b3eb4079af0329dc2397a250bc8c8b7a5014e19c318769c970d709658db68604
[INFO] running `Command { std: "docker" "start" "-a" "b3eb4079af0329dc2397a250bc8c8b7a5014e19c318769c970d709658db68604", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking gimli v0.24.0
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling arraydeque v0.4.5
[INFO] [stderr]     Checking rustc-demangle v0.1.20
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking silkworm_sourcemap v0.1.0-dev.1
[INFO] [stderr]     Checking ahash v0.3.8
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]    Compiling backtrace v0.3.60
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling hashbrown v0.7.2
[INFO] [stderr]     Checking object v0.25.3
[INFO] [stderr]     Checking thiserror v1.0.26
[INFO] [stderr]     Checking addr2line v0.15.2
[INFO] [stderr]     Checking silkworm_err v0.1.0-dev.1
[INFO] [stderr]     Checking silkworm_syn v0.1.0-dev.1
[INFO] [stderr]     Checking silkworm v0.1.0-dev.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.74s
[INFO] running `Command { std: "docker" "inspect" "b3eb4079af0329dc2397a250bc8c8b7a5014e19c318769c970d709658db68604", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3eb4079af0329dc2397a250bc8c8b7a5014e19c318769c970d709658db68604", kill_on_drop: false }`
[INFO] [stdout] b3eb4079af0329dc2397a250bc8c8b7a5014e19c318769c970d709658db68604