[INFO] cloning repository https://github.com/nrxus/advent_2018 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nrxus/advent_2018" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnrxus%2Fadvent_2018", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnrxus%2Fadvent_2018'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 0f7b9bc6e61ad765717d77e17cb205c55563b07c [INFO] documenting nrxus/advent_2018 against 1.46.0 for beta-1.47-rustdoc-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnrxus%2Fadvent_2018" "/workspace/builds/worker-9/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/nrxus/advent_2018 on toolchain 1.46.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/nrxus/advent_2018 [INFO] finished tweaking git repo https://github.com/nrxus/advent_2018 [INFO] tweaked toml for git repo https://github.com/nrxus/advent_2018 written to /workspace/builds/worker-9/source/Cargo.toml [INFO] crate git repo https://github.com/nrxus/advent_2018 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+1.46.0" "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] 16f8bd38a8231a7406c4a350820b5988f6de2f479a1ccf9806d0ce289366400b [INFO] running `Command { std: "docker" "start" "-a" "16f8bd38a8231a7406c4a350820b5988f6de2f479a1ccf9806d0ce289366400b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "16f8bd38a8231a7406c4a350820b5988f6de2f479a1ccf9806d0ce289366400b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "16f8bd38a8231a7406c4a350820b5988f6de2f479a1ccf9806d0ce289366400b", kill_on_drop: false }` [INFO] [stdout] 16f8bd38a8231a7406c4a350820b5988f6de2f479a1ccf9806d0ce289366400b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1e882a6b6f01978210d6b8d7bbb5031bce2850e486ef42262ea096e63190d70e [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" "1e882a6b6f01978210d6b8d7bbb5031bce2850e486ef42262ea096e63190d70e", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.44 [INFO] [stderr] Checking slab v0.4.1 [INFO] [stderr] Checking lazycell v1.2.0 [INFO] [stderr] Compiling cc v1.0.25 [INFO] [stderr] Compiling httparse v1.3.3 [INFO] [stderr] Compiling openssl v0.10.15 [INFO] [stderr] Checking string v0.1.2 [INFO] [stderr] Compiling native-tls v0.2.2 [INFO] [stderr] Compiling crc32fast v1.1.1 [INFO] [stderr] Checking indexmap v1.0.2 [INFO] [stderr] Compiling encoding_rs v0.8.13 [INFO] [stderr] Checking dtoa v0.4.3 [INFO] [stderr] Checking array-macro v1.0.2 [INFO] [stderr] Checking reexport-proc-macro v1.0.5 [INFO] [stderr] Checking strum v0.13.0 [INFO] [stderr] Checking crossbeam-utils v0.6.1 [INFO] [stderr] Checking arrayvec v0.4.8 [INFO] [stderr] Checking tokio-executor v0.1.5 [INFO] [stderr] Compiling unicase v2.2.0 [INFO] [stderr] Compiling heck v0.3.1 [INFO] [stderr] Checking want v0.0.6 [INFO] [stderr] Checking idna v0.1.5 [INFO] [stderr] Checking smallvec v0.6.7 [INFO] [stderr] Compiling unicase v1.4.2 [INFO] [stderr] Checking serde_json v1.0.33 [INFO] [stderr] Checking tokio-current-thread v0.1.4 [INFO] [stderr] Checking tokio-timer v0.2.8 [INFO] [stderr] Checking phf_shared v0.7.23 [INFO] [stderr] Compiling syn v0.14.9 [INFO] [stderr] Compiling syn v0.15.23 [INFO] [stderr] Checking phf v0.7.23 [INFO] [stderr] Checking crossbeam-epoch v0.6.1 [INFO] [stderr] Checking crossbeam-epoch v0.3.1 [INFO] [stderr] Checking libflate v0.1.19 [INFO] [stderr] Checking crossbeam-deque v0.2.0 [INFO] [stderr] Checking crossbeam-deque v0.6.2 [INFO] [stderr] Checking mime v0.3.12 [INFO] [stderr] Checking url v1.7.2 [INFO] [stderr] Compiling rand v0.5.5 [INFO] [stderr] Compiling openssl-sys v0.9.39 [INFO] [stderr] Checking iovec v0.1.2 [INFO] [stderr] Checking num_cpus v1.8.0 [INFO] [stderr] Checking net2 v0.2.33 [INFO] [stderr] Checking rand v0.6.1 [INFO] [stderr] Checking time v0.1.40 [INFO] [stderr] Checking memchr v2.1.2 [INFO] [stderr] Checking bytes v0.4.11 [INFO] [stderr] Checking futures-cpupool v0.1.8 [INFO] [stderr] Checking rayon-core v1.4.1 [INFO] [stderr] Checking serde_urlencoded v0.5.4 [INFO] [stderr] Checking mio v0.6.16 [INFO] [stderr] Checking cookie v0.11.0 [INFO] [stderr] Checking tokio-io v0.1.10 [INFO] [stderr] Checking http v0.1.14 [INFO] [stderr] Checking aho-corasick v0.6.9 [INFO] [stderr] Checking rayon v1.0.3 [INFO] [stderr] Checking regex v1.1.0 [INFO] [stderr] Checking tokio-codec v0.1.1 [INFO] [stderr] Checking mio-uds v0.6.7 [INFO] [stderr] Checking parking_lot_core v0.3.1 [INFO] [stderr] Checking uuid v0.7.1 [INFO] [stderr] Compiling phf_generator v0.7.23 [INFO] [stderr] Checking parking_lot v0.6.4 [INFO] [stderr] Checking tokio-threadpool v0.1.9 [INFO] [stderr] Compiling phf_codegen v0.7.23 [INFO] [stderr] Checking tokio-reactor v0.1.7 [INFO] [stderr] Compiling mime_guess v2.0.0-alpha.6 [INFO] [stderr] Checking tokio-udp v0.1.3 [INFO] [stderr] Checking tokio-tcp v0.1.2 [INFO] [stderr] Checking tokio-uds v0.2.4 [INFO] [stderr] Checking tokio-fs v0.1.4 [INFO] [stderr] Compiling enum-map-derive v0.4.0 [INFO] [stderr] Checking tokio v0.1.13 [INFO] [stderr] Checking h2 v0.1.13 [INFO] [stderr] Checking enum-map v0.4.1 [INFO] [stderr] Checking hyper v0.12.16 [INFO] [stderr] Compiling strum_macros v0.13.0 [INFO] [stderr] Checking hyper-tls v0.3.1 [INFO] [stderr] Checking reqwest v0.9.5 [INFO] [stderr] Checking advent_2018 v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Documenting advent_2018 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/four_b.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(try_trait)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/four_a.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(try_trait)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/seventeen_b.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(try_trait)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [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 E0554`. [INFO] [stdout] [INFO] [stderr] error: Could not document `advent_2018`. [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name seventeen_b src/seventeen_b.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern common=/opt/rustwide/target/debug/deps/libcommon-201c39630d662666.rmeta --extern array_macro=/opt/rustwide/target/debug/deps/libarray_macro-7ea5b6c65ec6e2af.rmeta --extern cookie=/opt/rustwide/target/debug/deps/libcookie-a73b08431372cbd4.rmeta --extern enum_map=/opt/rustwide/target/debug/deps/libenum_map-6940a3bfe61c91b2.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-4178002e2f50a665.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-819484484a60e200.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-3d5b21cf7c7720cb.rmeta --extern reqwest=/opt/rustwide/target/debug/deps/libreqwest-29b9cd4807553449.rmeta --extern strum=/opt/rustwide/target/debug/deps/libstrum-368b31fd09999cea.rmeta --extern strum_macros=/opt/rustwide/target/debug/deps/libstrum_macros-9f6e74772ddea15d.so --cap-lints=warn` (exit code: 1) [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [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 E0554`. [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/sixteen_a.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(try_trait)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: Compilation failed, aborting rustdoc [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/twenty_two_b.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(try_trait)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [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 E0554`. [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 E0554`. [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/sixteen_b.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(try_trait)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: Compilation failed, aborting rustdoc [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/seven_a.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(never_type)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [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 E0554`. [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/twenty_one_b.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(try_trait)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/eighteen_a.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(never_type)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0554`. [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 E0554`. [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 E0554`. [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 E0554`. [INFO] [stdout] [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "1e882a6b6f01978210d6b8d7bbb5031bce2850e486ef42262ea096e63190d70e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1e882a6b6f01978210d6b8d7bbb5031bce2850e486ef42262ea096e63190d70e", kill_on_drop: false }` [INFO] [stdout] 1e882a6b6f01978210d6b8d7bbb5031bce2850e486ef42262ea096e63190d70e