[INFO] cloning repository https://github.com/rtsmarty/discord-bots [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rtsmarty/discord-bots" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frtsmarty%2Fdiscord-bots", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frtsmarty%2Fdiscord-bots'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] c64e3f8b14ca0e505230fd4b03ee5ec0a09f27d4 [INFO] documenting rtsmarty/discord-bots 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%2Frtsmarty%2Fdiscord-bots" "/workspace/builds/worker-7/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/rtsmarty/discord-bots 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/rtsmarty/discord-bots [INFO] finished tweaking git repo https://github.com/rtsmarty/discord-bots [INFO] tweaked toml for git repo https://github.com/rtsmarty/discord-bots written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate git repo https://github.com/rtsmarty/discord-bots 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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 8303829351cba8c3b5b0c1c24c34b13ff2e5df5e69261aa10a88ec54b37c90a6 [INFO] running `Command { std: "docker" "start" "-a" "8303829351cba8c3b5b0c1c24c34b13ff2e5df5e69261aa10a88ec54b37c90a6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8303829351cba8c3b5b0c1c24c34b13ff2e5df5e69261aa10a88ec54b37c90a6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8303829351cba8c3b5b0c1c24c34b13ff2e5df5e69261aa10a88ec54b37c90a6", kill_on_drop: false }` [INFO] [stdout] 8303829351cba8c3b5b0c1c24c34b13ff2e5df5e69261aa10a88ec54b37c90a6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 5fa92338ace8624db575cf10ac712fea056f69c72c62b349c2b764f90206212e [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" "5fa92338ace8624db575cf10ac712fea056f69c72c62b349c2b764f90206212e", kill_on_drop: false }` [INFO] [stderr] Compiling syn v1.0.18 [INFO] [stderr] Checking futures-core v0.3.4 [INFO] [stderr] Checking futures-sink v0.3.4 [INFO] [stderr] Compiling proc-macro-nested v0.1.4 [INFO] [stderr] Checking pin-project-lite v0.1.4 [INFO] [stderr] Checking futures-task v0.3.4 [INFO] [stderr] Checking futures-io v0.3.4 [INFO] [stderr] Compiling openssl v0.10.29 [INFO] [stderr] Checking base64 v0.12.0 [INFO] [stderr] Compiling proc-macro2 v1.0.12 [INFO] [stderr] Compiling ryu v1.0.4 [INFO] [stderr] Checking http v0.2.1 [INFO] [stderr] Checking getrandom v0.1.14 [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Compiling native-tls v0.2.4 [INFO] [stderr] Checking mio v0.6.22 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking futures-channel v0.3.4 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking serde_json v1.0.52 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Compiling quote v1.0.4 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking rand v0.3.23 [INFO] [stderr] Checking rust-crypto v0.2.36 [INFO] [stderr] Checking http-body v0.3.1 [INFO] [stderr] Compiling syn-mid v0.5.0 [INFO] [stderr] Compiling futures-macro v0.3.4 [INFO] [stderr] Compiling tokio-macros v0.2.5 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.2 [INFO] [stderr] Compiling pin-project-internal v0.4.9 [INFO] [stderr] Compiling thiserror-impl v1.0.16 [INFO] [stderr] Compiling serde_derive v1.0.106 [INFO] [stderr] Checking tokio v0.2.20 [INFO] [stderr] Compiling proc-macro-error v1.0.2 [INFO] [stderr] Checking futures-util v0.3.4 [INFO] [stderr] Compiling structopt-derive v0.4.7 [INFO] [stderr] Checking thiserror v1.0.16 [INFO] [stderr] Checking pin-project v0.4.9 [INFO] [stderr] Checking structopt v0.3.14 [INFO] [stderr] Checking futures-executor v0.3.4 [INFO] [stderr] Checking tokio-util v0.3.1 [INFO] [stderr] Checking tokio-tls v0.3.0 [INFO] [stderr] Checking futures v0.3.4 [INFO] [stderr] Checking h2 v0.2.4 [INFO] [stderr] Checking hyper v0.13.5 [INFO] [stderr] Checking discord-bots v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Documenting discord-bots v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/lib.rs:2:1 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(hash_set_entry, maybe_uninit_slice_assume_init, try_blocks)] [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 `discord-bots`. [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name discord_bots src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern base64=/opt/rustwide/target/debug/deps/libbase64-13b560f8e4c12cfb.rmeta --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-b7cb6f2855b37747.rmeta --extern bytes=/opt/rustwide/target/debug/deps/libbytes-be87a6d7a821f35e.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-368c4b6518629e71.rmeta --extern http=/opt/rustwide/target/debug/deps/libhttp-ad35385836ff33e2.rmeta --extern hyper=/opt/rustwide/target/debug/deps/libhyper-dda21eddc33dc1c7.rmeta --extern native_tls=/opt/rustwide/target/debug/deps/libnative_tls-7b9a307af9284bce.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-e0222052df504b52.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-144324b3e2dea50c.rmeta --extern crypto=/opt/rustwide/target/debug/deps/libcrypto-9c0e0967025ea820.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-d80c5659c3302ca4.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-13ba81d2b68b0205.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-0689fdeca988f424.rmeta --extern smallvec=/opt/rustwide/target/debug/deps/libsmallvec-a713cd427097383d.rmeta --extern structopt=/opt/rustwide/target/debug/deps/libstructopt-6b61bfbfda0fd432.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-489e875bbb715b5b.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-ebeffbfcacff2289.rmeta --extern tokio_tls=/opt/rustwide/target/debug/deps/libtokio_tls-929f8244114fee23.rmeta --extern unicase=/opt/rustwide/target/debug/deps/libunicase-67d1f6a9471529e8.rmeta --cap-lints=warn` (exit code: 1) [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/lib.rs:2:1 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(hash_set_entry, maybe_uninit_slice_assume_init, try_blocks)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [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" "5fa92338ace8624db575cf10ac712fea056f69c72c62b349c2b764f90206212e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5fa92338ace8624db575cf10ac712fea056f69c72c62b349c2b764f90206212e", kill_on_drop: false }` [INFO] [stdout] 5fa92338ace8624db575cf10ac712fea056f69c72c62b349c2b764f90206212e