[INFO] cloning repository https://github.com/SchrodingerZhu/blog-system
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SchrodingerZhu/blog-system" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSchrodingerZhu%2Fblog-system", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSchrodingerZhu%2Fblog-system'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4974fb4fddfcc9974f9d89cb029770c4e7bcdc7c
[INFO] documenting SchrodingerZhu/blog-system 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%2FSchrodingerZhu%2Fblog-system" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SchrodingerZhu/blog-system 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] removed /workspace/builds/worker-6/source/.cargo/config
[INFO] started tweaking git repo https://github.com/SchrodingerZhu/blog-system
[INFO] finished tweaking git repo https://github.com/SchrodingerZhu/blog-system
[INFO] tweaked toml for git repo https://github.com/SchrodingerZhu/blog-system written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/SchrodingerZhu/blog-system 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] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stdout] 531abfe2c5c991481d6c35761aaec619068944712779135b3fb0cf13685a9e5e
[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" "531abfe2c5c991481d6c35761aaec619068944712779135b3fb0cf13685a9e5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "531abfe2c5c991481d6c35761aaec619068944712779135b3fb0cf13685a9e5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "531abfe2c5c991481d6c35761aaec619068944712779135b3fb0cf13685a9e5e", kill_on_drop: false }`
[INFO] [stdout] 531abfe2c5c991481d6c35761aaec619068944712779135b3fb0cf13685a9e5e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 881fcf050b153657d5efe02851d43628956caee28f61f3c42e0a0fe1c783eba0
[INFO] running `Command { std: "docker" "start" "-a" "881fcf050b153657d5efe02851d43628956caee28f61f3c42e0a0fe1c783eba0", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]    Compiling pin-project-internal v0.4.22
[INFO] [stderr]     Checking once_cell v1.4.0
[INFO] [stderr]     Checking futures-io v0.3.5
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.64
[INFO] [stderr]    Compiling bumpalo v3.4.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.64
[INFO] [stderr]     Checking parking v1.0.4
[INFO] [stderr]     Checking adler v0.2.2
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]     Checking waker-fn v1.0.0
[INFO] [stderr]     Checking fastrand v1.3.3
[INFO] [stderr]     Checking async-task v3.0.0
[INFO] [stderr]     Checking send_wrapper v0.4.0
[INFO] [stderr]    Compiling siphasher v0.3.3
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]     Checking new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]     Checking data-encoding v2.2.1
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]     Checking infer v0.1.7
[INFO] [stderr]     Checking mac v0.1.1
[INFO] [stderr]     Checking precomputed-hash v0.1.1
[INFO] [stderr]     Checking cpuid-bool v0.1.0
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]     Checking alloc-no-stdlib v2.0.1
[INFO] [stderr]    Compiling derive_builder v0.9.0
[INFO] [stderr]     Checking unicode-xid v0.2.1
[INFO] [stderr]    Compiling curl v0.4.30
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]    Compiling pq-sys v0.4.6
[INFO] [stderr]    Compiling isahc v0.9.5
[INFO] [stderr]    Compiling crc16 v0.4.0
[INFO] [stderr]    Compiling askama_escape v0.10.1
[INFO] [stderr]    Compiling botan-sys v0.6.0
[INFO] [stderr]    Compiling humansize v1.1.0
[INFO] [stderr]     Checking route-recognizer v0.1.13
[INFO] [stderr]    Compiling pulldown-cmark v0.7.2
[INFO] [stderr]     Checking cty v0.2.1
[INFO] [stderr]     Checking crc8 v0.1.1
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]    Compiling standback v0.2.9
[INFO] [stderr]    Compiling generic-array v0.14.2
[INFO] [stderr]    Compiling libnghttp2-sys v0.1.4+1.41.0
[INFO] [stderr]    Compiling time v0.2.16
[INFO] [stderr]    Compiling error-chain v0.12.2
[INFO] [stderr]     Checking tracing-core v0.1.11
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling curl-sys v0.4.32+curl-7.70.0
[INFO] [stderr]     Checking miniz_oxide v0.4.0
[INFO] [stderr]     Checking concurrent-queue v1.1.1
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]     Checking futf v0.1.4
[INFO] [stderr]     Checking http v0.2.1
[INFO] [stderr]     Checking alloc-stdlib v0.2.1
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking radix64 v0.6.2
[INFO] [stderr]     Checking stringprep v0.1.2
[INFO] [stderr]     Checking brotli-decompressor v2.3.1
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking socket2 v0.3.12
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking rpassword v4.0.5
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]     Checking quick-xml v0.17.2
[INFO] [stderr]     Checking quick-xml v0.18.1
[INFO] [stderr]     Checking tendril v0.4.1
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking quote v1.0.7
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]     Checking flate2 v1.0.16
[INFO] [stderr]     Checking float-cmp v0.6.0
[INFO] [stderr]     Checking term v0.5.2
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]     Checking botan v0.6.1
[INFO] [stderr]    Compiling walkdir v0.1.8
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]    Compiling const-random-macro v0.1.8
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking crypto-mac v0.8.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_pcg v0.2.1
[INFO] [stderr]     Checking byte-pool v0.2.1
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking sha3 v0.8.2
[INFO] [stderr]     Checking md2 v0.8.0
[INFO] [stderr]     Checking md4 v0.8.0
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]     Checking scheduled-thread-pool v0.2.5
[INFO] [stderr]     Checking brotli v3.3.0
[INFO] [stderr]    Compiling copy_dir v0.1.2
[INFO] [stderr]     Checking hmac v0.8.1
[INFO] [stderr]     Checking sha2 v0.9.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking ghash v0.2.3
[INFO] [stderr]     Checking aes v0.3.2
[INFO] [stderr]     Checking hkdf v0.8.0
[INFO] [stderr]     Checking easy-hasher v2.2.0
[INFO] [stderr]     Checking const-random v0.1.8
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]     Checking r2d2 v0.8.9
[INFO] [stderr]    Compiling libquickjs-sys v0.7.0
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking aes-gcm v0.5.0
[INFO] [stderr]     Checking ahash v0.3.8
[INFO] [stderr]     Checking tokio v0.2.21
[INFO] [stderr]     Checking hashbrown v0.7.2
[INFO] [stderr]     Checking postgres-protocol v0.5.2
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]     Checking postgres-types v0.1.2
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]    Compiling string_cache_codegen v0.5.1
[INFO] [stderr]     Checking structopt v0.2.18
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking async-compression v0.3.5
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.64
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.64
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling async-attributes v1.1.1
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]    Compiling tracing-attributes v0.1.9
[INFO] [stderr]    Compiling async-trait v0.1.36
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling html5ever v0.25.1
[INFO] [stderr]    Compiling diesel_derives v1.4.1
[INFO] [stderr]    Compiling xactor-derive v0.7.1
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/diesel_derives-1.4.1/src/lib.rs:20:34
[INFO] [stdout]    |
[INFO] [stdout] 20 | #![cfg_attr(feature = "nightly", feature(proc_macro_diagnostic, proc_macro_span))]
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling darling_macro v0.10.2
[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: could not compile `diesel_derives`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "881fcf050b153657d5efe02851d43628956caee28f61f3c42e0a0fe1c783eba0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "881fcf050b153657d5efe02851d43628956caee28f61f3c42e0a0fe1c783eba0", kill_on_drop: false }`
[INFO] [stdout] 881fcf050b153657d5efe02851d43628956caee28f61f3c42e0a0fe1c783eba0