[INFO] fetching crate mdbook-bookimport 0.1.1...
[INFO] checking mdbook-bookimport-0.1.1 against beta for pr-78714
[INFO] extracting crate mdbook-bookimport 0.1.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate mdbook-bookimport 0.1.1 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mdbook-bookimport 0.1.1
[INFO] finished tweaking crates.io crate mdbook-bookimport 0.1.1
[INFO] tweaked toml for crates.io crate mdbook-bookimport 0.1.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 84b9f7c690baf49b024565feace6d53d43fa9999df66dde41211b99d664f6e2f
[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" "84b9f7c690baf49b024565feace6d53d43fa9999df66dde41211b99d664f6e2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "84b9f7c690baf49b024565feace6d53d43fa9999df66dde41211b99d664f6e2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84b9f7c690baf49b024565feace6d53d43fa9999df66dde41211b99d664f6e2f", kill_on_drop: false }`
[INFO] [stdout] 84b9f7c690baf49b024565feace6d53d43fa9999df66dde41211b99d664f6e2f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a2f535ec03169c7c924ba3150399c8247a07c24b952576ec38ad53ea1dae9ffe
[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" "a2f535ec03169c7c924ba3150399c8247a07c24b952576ec38ad53ea1dae9ffe", kill_on_drop: false }`
[INFO] [stderr]     Checking new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling pulldown-cmark v0.1.2
[INFO] [stderr]     Checking strum v0.18.0
[INFO] [stderr]     Checking sha1 v0.6.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking open v1.4.0
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]     Checking inotify-sys v0.1.4
[INFO] [stderr]     Checking filetime v0.2.13
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking serde_json v1.0.59
[INFO] [stderr]     Checking futf v0.1.4
[INFO] [stderr]    Compiling strum_macros v0.18.0
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking inotify v0.7.1
[INFO] [stderr]     Checking pest v2.1.3
[INFO] [stderr]     Checking tendril v0.4.1
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling string_cache_codegen v0.4.4
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]     Checking ws v0.7.9
[INFO] [stderr]    Compiling mime_guess v1.8.8
[INFO] [stderr]     Checking notify v4.0.15
[INFO] [stderr]    Compiling string_cache v0.7.5
[INFO] [stderr]    Compiling markup5ever v0.7.5
[INFO] [stderr]     Checking toml-query v0.7.0
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]     Checking elasticlunr-rs v2.3.9
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]     Checking iron v0.6.1
[INFO] [stderr]     Checking mount v0.4.0
[INFO] [stderr]     Checking staticfile v0.5.0
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking handlebars v1.1.0
[INFO] [stderr]    Compiling html5ever v0.22.5
[INFO] [stderr]     Checking ammonia v1.2.0
[INFO] [stderr]     Checking mdbook v0.2.3
[INFO] [stderr]     Checking mdbook-bookimport v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 05s
[INFO] running `Command { std: "docker" "inspect" "a2f535ec03169c7c924ba3150399c8247a07c24b952576ec38ad53ea1dae9ffe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2f535ec03169c7c924ba3150399c8247a07c24b952576ec38ad53ea1dae9ffe", kill_on_drop: false }`
[INFO] [stdout] a2f535ec03169c7c924ba3150399c8247a07c24b952576ec38ad53ea1dae9ffe