[INFO] cloning repository https://github.com/captainbland/crier
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/captainbland/crier" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcaptainbland%2Fcrier", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcaptainbland%2Fcrier'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 940877be4f41857a6ae6ebf5ae9b6de660609f2a
[INFO] documenting captainbland/crier 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%2Fcaptainbland%2Fcrier" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/captainbland/crier 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/captainbland/crier
[INFO] finished tweaking git repo https://github.com/captainbland/crier
[INFO] tweaked toml for git repo https://github.com/captainbland/crier written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/captainbland/crier 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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 0a869a51519588df61baf45647a05b385abe97c5af33900bcd7120bec9f009e0
[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" "0a869a51519588df61baf45647a05b385abe97c5af33900bcd7120bec9f009e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0a869a51519588df61baf45647a05b385abe97c5af33900bcd7120bec9f009e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a869a51519588df61baf45647a05b385abe97c5af33900bcd7120bec9f009e0", kill_on_drop: false }`
[INFO] [stdout] 0a869a51519588df61baf45647a05b385abe97c5af33900bcd7120bec9f009e0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 3a52891ae2c641ba14ef09d86d330858cd18934e5b22ef91ce138bdf8e1d0476
[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" "3a52891ae2c641ba14ef09d86d330858cd18934e5b22ef91ce138bdf8e1d0476", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]     Checking byteorder v1.2.7
[INFO] [stderr]     Checking unicode-normalization v0.1.7
[INFO] [stderr]     Checking rand_core v0.3.0
[INFO] [stderr]    Compiling cc v1.0.25
[INFO] [stderr]    Compiling proc-macro2 v0.4.24
[INFO] [stderr]    Compiling serde v1.0.80
[INFO] [stderr]     Checking lazycell v1.2.0
[INFO] [stderr]    Compiling ryu v0.2.7
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]     Checking byte-tools v0.2.0
[INFO] [stderr]    Compiling openssl v0.9.24
[INFO] [stderr]     Checking constant_time_eq v0.1.3
[INFO] [stderr]    Compiling regex v1.0.6
[INFO] [stderr]     Checking arrayref v0.3.5
[INFO] [stderr]     Checking dtoa v0.4.3
[INFO] [stderr]    Compiling openssl v0.10.15
[INFO] [stderr]    Compiling encoding_rs v0.8.13
[INFO] [stderr]     Checking scoped-tls v0.1.2
[INFO] [stderr]    Compiling cfg-if v0.1.6
[INFO] [stderr]     Checking try-lock v0.1.0
[INFO] [stderr]    Compiling native-tls v0.2.2
[INFO] [stderr]     Checking string v0.1.2
[INFO] [stderr]     Checking fallible-iterator v0.1.6
[INFO] [stderr]    Compiling redis v0.8.0
[INFO] [stderr]     Checking data-encoding v2.1.1
[INFO] [stderr]    Compiling lazy_static v1.2.0
[INFO] [stderr]    Compiling itoa v0.4.3
[INFO] [stderr]     Checking hex v0.2.0
[INFO] [stderr]     Checking sha1 v0.2.0
[INFO] [stderr]     Checking itoa v0.3.4
[INFO] [stderr]     Checking opaque-debug v0.1.1
[INFO] [stderr]     Checking either v1.5.0
[INFO] [stderr]    Compiling maud_htmlescape v0.17.0
[INFO] [stderr]     Checking ascii v0.9.1
[INFO] [stderr]    Compiling literalext v0.1.1
[INFO] [stderr]    Compiling escargot v0.3.1
[INFO] [stderr]     Checking sequence_trie v0.3.6
[INFO] [stderr]    Compiling redis v0.9.1
[INFO] [stderr]     Checking termcolor v1.0.4
[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/literalext-0.1.1/src/lib.rs:19:37
[INFO] [stdout]    |
[INFO] [stdout] 19 | #![cfg_attr(feature = "proc-macro", feature(proc_macro))]
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rgb v0.8.11
[INFO] [stderr]    Compiling if_chain v0.1.3
[INFO] [stderr]     Checking qrcodegen v1.4.0
[INFO] [stderr]    Compiling unicase v2.2.0
[INFO] [stderr]     Checking log v0.4.6
[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 `literalext`.
[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" "3a52891ae2c641ba14ef09d86d330858cd18934e5b22ef91ce138bdf8e1d0476", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a52891ae2c641ba14ef09d86d330858cd18934e5b22ef91ce138bdf8e1d0476", kill_on_drop: false }`
[INFO] [stdout] 3a52891ae2c641ba14ef09d86d330858cd18934e5b22ef91ce138bdf8e1d0476