[INFO] fetching crate boba 4.2.0...
[INFO] checking boba-4.2.0 against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] extracting crate boba 4.2.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate boba 4.2.0 on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate boba 4.2.0
[INFO] finished tweaking crates.io crate boba 4.2.0
[INFO] tweaked toml for crates.io crate boba 4.2.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f20bf5968ae77932c22caa39fc9bb215266b451536d4ab2a51149a2df52c7b32
[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" "f20bf5968ae77932c22caa39fc9bb215266b451536d4ab2a51149a2df52c7b32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f20bf5968ae77932c22caa39fc9bb215266b451536d4ab2a51149a2df52c7b32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f20bf5968ae77932c22caa39fc9bb215266b451536d4ab2a51149a2df52c7b32", kill_on_drop: false }`
[INFO] [stdout] f20bf5968ae77932c22caa39fc9bb215266b451536d4ab2a51149a2df52c7b32
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7c08829ed3e68e390b281bec1ee3b19f4e01c49d77d0371f3b1d3c1d2111c037
[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" "7c08829ed3e68e390b281bec1ee3b19f4e01c49d77d0371f3b1d3c1d2111c037", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling pulldown-cmark v0.8.0
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking semver-parser v0.9.0
[INFO] [stderr]     Checking bubblebabble v0.1.2
[INFO] [stderr]     Checking unicode-bidi v0.3.5
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]     Checking quote v1.0.9
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]     Checking syn v1.0.72
[INFO] [stderr]     Checking url v2.2.1
[INFO] [stderr]     Checking boba v4.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking version-sync v0.9.2
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.58s
[INFO] running `Command { std: "docker" "inspect" "7c08829ed3e68e390b281bec1ee3b19f4e01c49d77d0371f3b1d3c1d2111c037", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c08829ed3e68e390b281bec1ee3b19f4e01c49d77d0371f3b1d3c1d2111c037", kill_on_drop: false }`
[INFO] [stdout] 7c08829ed3e68e390b281bec1ee3b19f4e01c49d77d0371f3b1d3c1d2111c037