[INFO] cloning repository https://github.com/chloekek/snowflake
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chloekek/snowflake" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchloekek%2Fsnowflake", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchloekek%2Fsnowflake'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] aeab298fc29e79b29f4edec5d00778c4a06791d1
[INFO] documenting chloekek/snowflake against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchloekek%2Fsnowflake" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/chloekek/snowflake on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/chloekek/snowflake
[INFO] finished tweaking git repo https://github.com/chloekek/snowflake
[INFO] tweaked toml for git repo https://github.com/chloekek/snowflake written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/chloekek/snowflake already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "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] 15cb3b1031533dd8ef03ee070f4894a53e2cb52b2e9321b04465e8ed2f6cc8af
[INFO] running `Command { std: "docker" "start" "-a" "15cb3b1031533dd8ef03ee070f4894a53e2cb52b2e9321b04465e8ed2f6cc8af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "15cb3b1031533dd8ef03ee070f4894a53e2cb52b2e9321b04465e8ed2f6cc8af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15cb3b1031533dd8ef03ee070f4894a53e2cb52b2e9321b04465e8ed2f6cc8af", kill_on_drop: false }`
[INFO] [stdout] 15cb3b1031533dd8ef03ee070f4894a53e2cb52b2e9321b04465e8ed2f6cc8af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "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] 965936d7e9b28be12d15d213eb3e7400f265b9b1fa18556fc192ff95e7223b9c
[INFO] running `Command { std: "docker" "start" "-a" "965936d7e9b28be12d15d213eb3e7400f265b9b1fa18556fc192ff95e7223b9c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling libc v0.2.125
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]     Checking regex-syntax v0.6.26
[INFO] [stderr]     Checking scope-exit v0.0.0 (/opt/rustwide/workdir/common/scope-exit)
[INFO] [stderr]  Documenting scope-exit v0.0.0 (/opt/rustwide/workdir/common/scope-exit)
[INFO] [stderr]    Compiling blake3_c_rust_bindings v0.0.0 (https://github.com/BLAKE3-team/BLAKE3?rev=1.3.1#4e84c8c7)
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking os-ext v0.0.0 (/opt/rustwide/workdir/common/os-ext)
[INFO] [stderr]  Documenting os-ext v0.0.0 (/opt/rustwide/workdir/common/os-ext)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> common/os-ext/src/lib.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 | #![feature(io_safety)]
[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 `os-ext` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> common/os-ext/src/lib.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 | #![feature(io_safety)]
[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 document `os-ext`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type lib --crate-name os_ext common/os-ext/src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=adfaa52070f71d35 -L dependency=/opt/rustwide/target/debug/deps --extern libc=/opt/rustwide/target/debug/deps/liblibc-69192b4c62c9f38e.rmeta --cap-lints=warn --crate-version 0.0.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "965936d7e9b28be12d15d213eb3e7400f265b9b1fa18556fc192ff95e7223b9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "965936d7e9b28be12d15d213eb3e7400f265b9b1fa18556fc192ff95e7223b9c", kill_on_drop: false }`
[INFO] [stdout] 965936d7e9b28be12d15d213eb3e7400f265b9b1fa18556fc192ff95e7223b9c