[INFO] cloning repository https://github.com/playXE/js
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/playXE/js" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FplayXE%2Fjs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FplayXE%2Fjs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e95701ca30e5f32d3b27dcab4f0f9f50e97463de
[INFO] documenting playXE/js against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FplayXE%2Fjs" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/playXE/js on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/playXE/js
[INFO] finished tweaking git repo https://github.com/playXE/js
[INFO] tweaked toml for git repo https://github.com/playXE/js written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/playXE/js already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/Starlight-JS/comet`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ryu-js v0.2.1
[INFO] [stderr]   Downloaded swc_ecma_ast v0.49.1
[INFO] [stderr]   Downloaded generic_static v0.2.0
[INFO] [stderr]   Downloaded intrusive-collections v0.9.2
[INFO] [stderr]   Downloaded regress v0.4.1
[INFO] [stderr]   Downloaded swc_ecma_parser v0.66.1
[INFO] [stderr]   Downloaded swc_ecma_utils v0.41.0
[INFO] [stderr]   Downloaded swc_common v0.11.4
[INFO] [stderr]   Downloaded swc_ecma_visit v0.35.1
[INFO] [stderr]   Downloaded swc_visit v0.2.5
[INFO] [stderr]   Downloaded swc_ecmascript v0.52.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e6890b93adc0b9627576aae1f25d5cc5a2371e1da349b1ee6da4fb4d843a198f
[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" "e6890b93adc0b9627576aae1f25d5cc5a2371e1da349b1ee6da4fb4d843a198f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e6890b93adc0b9627576aae1f25d5cc5a2371e1da349b1ee6da4fb4d843a198f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6890b93adc0b9627576aae1f25d5cc5a2371e1da349b1ee6da4fb4d843a198f", kill_on_drop: false }`
[INFO] [stdout] e6890b93adc0b9627576aae1f25d5cc5a2371e1da349b1ee6da4fb4d843a198f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "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] 0f3136797b0e08209f9d007ea256990fc8955d75a4630a2cc947f6da79cec5cc
[INFO] running `Command { std: "docker" "start" "-a" "0f3136797b0e08209f9d007ea256990fc8955d75a4630a2cc947f6da79cec5cc", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.65
[INFO] [stderr]    Compiling siphasher v0.3.6
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]     Checking cty v0.2.1
[INFO] [stderr]    Compiling ryu-js v0.2.1
[INFO] [stderr]     Checking starlight-bytecode v0.1.0 (/opt/rustwide/workdir/crates/starlight-bytecode)
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-bigint v0.4.0
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]     Checking phf_shared v0.8.0
[INFO] [stderr]     Checking generic_static v0.2.0
[INFO] [stderr]    Compiling jobserver v0.1.23
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]    --> crates/starlight-bytecode/src/opcode_list.rs:1:1
[INFO] [stdout]     |
[INFO] [stdout] 1   | / macro_rules! opcode_list {
[INFO] [stdout] 2   | |     ($f: ident) => {
[INFO] [stdout] 3   | |         $f! {
[INFO] [stdout] 4   | |             enter {},
[INFO] [stdout] ...   |
[INFO] [stdout] 100 | |     };
[INFO] [stdout] 101 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt`
[INFO] [stdout]  --> crates/starlight-bytecode/src/virtual_register.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]     Checking errno v0.2.7
[INFO] [stderr]     Checking memmap2 v0.3.0
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking regress v0.4.1
[INFO] [stderr]     Checking num-format v0.4.0
[INFO] [stderr]     Checking dashmap v4.0.2
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]     Checking intrusive-collections v0.9.2
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]     Checking wtf-rs v0.1.0 (/opt/rustwide/workdir/crates/wtf-rs)
[INFO] [stderr]     Checking rayon v1.5.1
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> crates/wtf-rs/src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(backtrace)]
[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: could not compile `wtf-rs` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "0f3136797b0e08209f9d007ea256990fc8955d75a4630a2cc947f6da79cec5cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f3136797b0e08209f9d007ea256990fc8955d75a4630a2cc947f6da79cec5cc", kill_on_drop: false }`
[INFO] [stdout] 0f3136797b0e08209f9d007ea256990fc8955d75a4630a2cc947f6da79cec5cc
