[INFO] updating cached repository https://github.com/Nightfall/MCMUCH-Rust-Website
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 01babbd4c2ca0966b2f0612b761d25388fa8b49d
[INFO] documenting Nightfall/MCMUCH-Rust-Website against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNightfall%2FMCMUCH-Rust-Website" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Nightfall/MCMUCH-Rust-Website on toolchain 394e1b40d264aa6928811919c1124fa248e7d802
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Nightfall/MCMUCH-Rust-Website
[INFO] finished tweaking git repo https://github.com/Nightfall/MCMUCH-Rust-Website
[INFO] tweaked toml for git repo https://github.com/Nightfall/MCMUCH-Rust-Website written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/Nightfall/MCMUCH-Rust-Website already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: the lock file /workspace/builds/worker-2/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "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-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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9109be7b108dbb0eb72b48f57ffb2da768c2b79eb7ef711a07e2acf46bd8efce
[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" "9109be7b108dbb0eb72b48f57ffb2da768c2b79eb7ef711a07e2acf46bd8efce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9109be7b108dbb0eb72b48f57ffb2da768c2b79eb7ef711a07e2acf46bd8efce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9109be7b108dbb0eb72b48f57ffb2da768c2b79eb7ef711a07e2acf46bd8efce", kill_on_drop: false }`
[INFO] [stdout] 9109be7b108dbb0eb72b48f57ffb2da768c2b79eb7ef711a07e2acf46bd8efce
[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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1b4cfde9178c453f8aa768ba631fbbddb85c18b6cd30ce3e5958b91b9e0f96df
[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" "1b4cfde9178c453f8aa768ba631fbbddb85c18b6cd30ce3e5958b91b9e0f96df", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking tinyvec v0.3.3
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]     Checking modifier v0.1.0
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking sequence_trie v0.3.6
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking route-recognizer v0.1.13
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking unsafe-any v0.4.2
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]     Checking unicode-normalization v0.1.13
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking typemap v0.3.3
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]     Checking plugin v0.2.6
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling phf v0.7.24
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]     Checking hyper v0.10.16
[INFO] [stderr]    Compiling mime_guess v1.8.8
[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 router v0.6.0
[INFO] [stderr]     Checking logger v0.4.0
[INFO] [stderr]     Checking staticfile v0.5.0
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking serde_json v1.0.56
[INFO] [stderr]     Checking handlebars v3.2.1
[INFO] [stderr]     Checking handlebars-iron v0.29.0
[INFO] [stderr]  Documenting mcmuch-rust-website v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `serde_json::builder`
[INFO] [stdout]  --> src/pages.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 3 | use serde_json::builder::ObjectBuilder;
[INFO] [stdout]   |                 ^^^^^^^ could not find `builder` in `serde_json`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `mcmuch-rust-website`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name mcmuch_rust_website src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern handlebars_iron=/opt/rustwide/target/debug/deps/libhandlebars_iron-0e43ecca6f844830.rmeta --extern iron=/opt/rustwide/target/debug/deps/libiron-6fd001e216c89826.rmeta --extern logger=/opt/rustwide/target/debug/deps/liblogger-4f602253b74d8f72.rmeta --extern mount=/opt/rustwide/target/debug/deps/libmount-61ac85b08cff1f12.rmeta --extern router=/opt/rustwide/target/debug/deps/librouter-c1134e796d2d864d.rmeta --extern rustc_serialize=/opt/rustwide/target/debug/deps/librustc_serialize-7ddf6b4d13e0395e.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-51e155187988928d.rmeta --extern staticfile=/opt/rustwide/target/debug/deps/libstaticfile-e3028efeacdbd65c.rmeta --cap-lints=forbid` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "1b4cfde9178c453f8aa768ba631fbbddb85c18b6cd30ce3e5958b91b9e0f96df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b4cfde9178c453f8aa768ba631fbbddb85c18b6cd30ce3e5958b91b9e0f96df", kill_on_drop: false }`
[INFO] [stdout] 1b4cfde9178c453f8aa768ba631fbbddb85c18b6cd30ce3e5958b91b9e0f96df