[INFO] cloning repository https://github.com/arnfaldur/RobozzleSolver [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/arnfaldur/RobozzleSolver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farnfaldur%2FRobozzleSolver", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farnfaldur%2FRobozzleSolver'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 1fef64afc10eab88ceac5b26395ef7b2e541f92e [INFO] documenting arnfaldur/RobozzleSolver 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%2Farnfaldur%2FRobozzleSolver" "/workspace/builds/worker-4/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/arnfaldur/RobozzleSolver 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/arnfaldur/RobozzleSolver [INFO] finished tweaking git repo https://github.com/arnfaldur/RobozzleSolver [INFO] tweaked toml for git repo https://github.com/arnfaldur/RobozzleSolver written to /workspace/builds/worker-4/source/Cargo.toml [INFO] crate git repo https://github.com/arnfaldur/RobozzleSolver 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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 6393cda3808b3debd9cfb9f6040ca567068197ef840356797cc2eef26e7eb52b [INFO] running `Command { std: "docker" "start" "-a" "6393cda3808b3debd9cfb9f6040ca567068197ef840356797cc2eef26e7eb52b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6393cda3808b3debd9cfb9f6040ca567068197ef840356797cc2eef26e7eb52b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6393cda3808b3debd9cfb9f6040ca567068197ef840356797cc2eef26e7eb52b", kill_on_drop: false }` [INFO] [stdout] 6393cda3808b3debd9cfb9f6040ca567068197ef840356797cc2eef26e7eb52b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] b99bc258b8559359aaa8638853e8f0f860eff2e025761db17c2100ae11fa227c [INFO] running `Command { std: "docker" "start" "-a" "b99bc258b8559359aaa8638853e8f0f860eff2e025761db17c2100ae11fa227c", kill_on_drop: false }` [INFO] [stderr] Checking spin v0.5.2 [INFO] [stderr] Compiling proc-macro2 v1.0.6 [INFO] [stderr] Compiling syn v1.0.7 [INFO] [stderr] Compiling arrayvec v0.4.12 [INFO] [stderr] Checking futures-core-preview v0.3.0-alpha.19 [INFO] [stderr] Checking futures-sink-preview v0.3.0-alpha.19 [INFO] [stderr] Compiling typenum v1.11.2 [INFO] [stderr] Compiling pkg-config v0.3.16 [INFO] [stderr] Compiling cc v1.0.46 [INFO] [stderr] Compiling serde v1.0.102 [INFO] [stderr] Compiling openssl v0.10.25 [INFO] [stderr] Compiling native-tls v0.2.3 [INFO] [stderr] Compiling cgmath v0.16.1 [INFO] [stderr] Compiling winapi v0.3.8 [INFO] [stderr] Checking tower-service v0.3.0-alpha.2 [INFO] [stderr] Checking urlencoding v1.0.0 [INFO] [stderr] Checking unicode-segmentation v1.3.0 [INFO] [stderr] Checking rgb v0.8.14 [INFO] [stderr] Checking once_cell v1.2.0 [INFO] [stderr] Compiling indexmap v1.3.0 [INFO] [stderr] Compiling num-traits v0.2.8 [INFO] [stderr] Compiling unicase v2.5.1 [INFO] [stderr] Checking block-padding v0.1.4 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking futures-channel-preview v0.3.0-alpha.19 [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Checking want v0.2.0 [INFO] [stderr] Compiling hyper v0.12.35 [INFO] [stderr] Checking crossbeam-utils v0.6.6 [INFO] [stderr] Checking tracing-core v0.1.7 [INFO] [stderr] Checking c2-chacha v0.2.2 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Checking bytes v0.4.12 [INFO] [stderr] Checking futures-cpupool v0.1.8 [INFO] [stderr] Checking cookie v0.12.0 [INFO] [stderr] Checking futures-util-preview v0.3.0-alpha.19 [INFO] [stderr] Checking rand_pcg v0.2.0 [INFO] [stderr] Checking regex v1.3.1 [INFO] [stderr] Checking rand_chacha v0.2.1 [INFO] [stderr] Checking crossbeam-queue v0.1.2 [INFO] [stderr] Checking tokio-executor v0.1.8 [INFO] [stderr] Checking crossbeam-channel v0.3.9 [INFO] [stderr] Checking rand v0.7.2 [INFO] [stderr] Checking tokio-io v0.1.12 [INFO] [stderr] Checking http v0.1.19 [INFO] [stderr] Checking string v0.2.1 [INFO] [stderr] Checking tokio-buf v0.1.1 [INFO] [stderr] Checking tokio-timer v0.2.11 [INFO] [stderr] Checking tokio-current-thread v0.1.6 [INFO] [stderr] Checking crossbeam-epoch v0.7.2 [INFO] [stderr] Compiling mime_guess v2.0.1 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Checking crossbeam-deque v0.7.1 [INFO] [stderr] Checking tokio-reactor v0.1.10 [INFO] [stderr] Checking tokio-codec v0.1.1 [INFO] [stderr] Checking generic-array v0.12.3 [INFO] [stderr] Checking tokio-threadpool v0.1.16 [INFO] [stderr] Checking num-traits v0.1.43 [INFO] [stderr] Checking digest v0.8.1 [INFO] [stderr] Checking block-buffer v0.7.3 [INFO] [stderr] Compiling openssl-sys v0.9.52 [INFO] [stderr] Checking sha-1 v0.8.1 [INFO] [stderr] Checking tokio-uds v0.2.5 [INFO] [stderr] Checking tokio-udp v0.1.5 [INFO] [stderr] Checking tokio-tcp v0.1.3 [INFO] [stderr] Checking statrs v0.12.0 [INFO] [stderr] Checking tokio-fs v0.1.6 [INFO] [stderr] Checking tokio-sync v0.2.0-alpha.6 [INFO] [stderr] Checking tokio v0.1.22 [INFO] [stderr] Checking http-body v0.1.0 [INFO] [stderr] Checking h2 v0.1.26 [INFO] [stderr] Checking headers-core v0.1.1 [INFO] [stderr] Checking http-body v0.2.0-alpha.3 [INFO] [stderr] Checking headers v0.2.3 [INFO] [stderr] Checking winconsole v0.10.0 [INFO] [stderr] Checking colored v1.8.0 [INFO] [stderr] Compiling pin-project-internal v0.4.5 [INFO] [stderr] Compiling tracing-attributes v0.1.5 [INFO] [stderr] Compiling serde_derive v1.0.102 [INFO] [stderr] Compiling tokio-macros v0.2.0-alpha.6 [INFO] [stderr] Checking tracing v0.1.10 [INFO] [stderr] Checking tokio-executor v0.2.0-alpha.6 [INFO] [stderr] Checking pin-project v0.4.5 [INFO] [stderr] Checking tokio-io v0.2.0-alpha.6 [INFO] [stderr] Checking tokio-codec v0.2.0-alpha.6 [INFO] [stderr] Checking tower-make v0.3.0-alpha.2a [INFO] [stderr] Checking tokio-tls v0.3.0-alpha.6 [INFO] [stderr] Checking h2 v0.2.0-alpha.3 [INFO] [stderr] Checking tokio-fs v0.2.0-alpha.6 [INFO] [stderr] Checking tokio-net v0.2.0-alpha.6 [INFO] [stderr] Checking tokio-timer v0.3.0-alpha.6 [INFO] [stderr] Checking tokio v0.2.0-alpha.6 [INFO] [stderr] Checking hyper v0.13.0-alpha.4 [INFO] [stderr] Checking hyper-tls v0.4.0-alpha.4 [INFO] [stderr] Checking serde_json v1.0.41 [INFO] [stderr] Checking serde_urlencoded v0.6.1 [INFO] [stderr] Checking warp v0.1.20 [INFO] [stderr] Checking webdriver v0.40.2 [INFO] [stderr] Checking fantoccini v0.12.0-alpha.4 [INFO] [stderr] Documenting solver v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/main.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(test, vec_remove_item, core_intrinsics, cfg_target_has_atomic)] [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 `solver`. [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name solver 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 colored=/opt/rustwide/target/debug/deps/libcolored-e8ffb70589ac3923.rmeta --extern crossbeam_channel=/opt/rustwide/target/debug/deps/libcrossbeam_channel-491adc8e4e9854b7.rmeta --extern fantoccini=/opt/rustwide/target/debug/deps/libfantoccini-18abe781fffed37c.rmeta --extern once_cell=/opt/rustwide/target/debug/deps/libonce_cell-faa96c2fdd96098d.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-42da8b04351e800f.rmeta --extern rand_pcg=/opt/rustwide/target/debug/deps/librand_pcg-88601b5f1e5dde4e.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-59b8012837c52626.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-ba48c2091bc87cdd.rmeta --extern statrs=/opt/rustwide/target/debug/deps/libstatrs-b769d113aa64676a.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-afd16283b5db6685.rmeta --extern webdriver=/opt/rustwide/target/debug/deps/libwebdriver-9e98290cbe4abeac.rmeta --cap-lints=warn` (exit code: 1) [INFO] running `Command { std: "docker" "inspect" "b99bc258b8559359aaa8638853e8f0f860eff2e025761db17c2100ae11fa227c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b99bc258b8559359aaa8638853e8f0f860eff2e025761db17c2100ae11fa227c", kill_on_drop: false }` [INFO] [stdout] b99bc258b8559359aaa8638853e8f0f860eff2e025761db17c2100ae11fa227c