[INFO] cloning repository https://github.com/rust-zh/faq
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rust-zh/faq" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-zh%2Ffaq", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-zh%2Ffaq'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6d82774e8dc83713ce2c3c37f152c25cbc341adc
[INFO] checking rust-zh/faq against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-zh%2Ffaq" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rust-zh/faq 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 git repo https://github.com/rust-zh/faq
[INFO] finished tweaking git repo https://github.com/rust-zh/faq
[INFO] tweaked toml for git repo https://github.com/rust-zh/faq written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/rust-zh/faq already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f51284a954194b1bc367f58f2a98cd7868774f250cdf2908d3a8ed5a470cca9e
[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" "f51284a954194b1bc367f58f2a98cd7868774f250cdf2908d3a8ed5a470cca9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f51284a954194b1bc367f58f2a98cd7868774f250cdf2908d3a8ed5a470cca9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f51284a954194b1bc367f58f2a98cd7868774f250cdf2908d3a8ed5a470cca9e", kill_on_drop: false }`
[INFO] [stdout] f51284a954194b1bc367f58f2a98cd7868774f250cdf2908d3a8ed5a470cca9e
[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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "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] a51356ad20b78e033506c30d8599454b6865dd153af63690fb2d768bdf81397d
[INFO] running `Command { std: "docker" "start" "-a" "a51356ad20b78e033506c30d8599454b6865dd153af63690fb2d768bdf81397d", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling v_escape v0.14.0
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking bytes v0.6.0
[INFO] [stderr]    Compiling v_htmlescape v0.11.0
[INFO] [stderr]    Compiling pulldown-cmark v0.8.0
[INFO] [stderr]    Compiling anyhow v1.0.34
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]     Checking quick-error v2.0.0
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]     Checking line-wrap v0.1.1
[INFO] [stderr]    Compiling onig_sys v69.5.1
[INFO] [stderr]     Checking yaml-rust v0.4.4
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking buf-min v0.2.0
[INFO] [stderr]     Checking flate2 v1.0.19
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]     Checking onig v6.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling v_escape_derive v0.8.4
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking serde v1.0.117
[INFO] [stderr]     Checking serde_json v1.0.59
[INFO] [stderr]     Checking plist v1.0.0
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking handlebars v3.5.1
[INFO] [stderr]     Checking syntect v4.4.0
[INFO] [stderr]     Checking rust-zh-faq v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 58.96s
[INFO] running `Command { std: "docker" "inspect" "a51356ad20b78e033506c30d8599454b6865dd153af63690fb2d768bdf81397d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a51356ad20b78e033506c30d8599454b6865dd153af63690fb2d768bdf81397d", kill_on_drop: false }`
[INFO] [stdout] a51356ad20b78e033506c30d8599454b6865dd153af63690fb2d768bdf81397d