[INFO] cloning repository https://github.com/nathanfaucett/rs-lisp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nathanfaucett/rs-lisp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnathanfaucett%2Frs-lisp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnathanfaucett%2Frs-lisp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4535b3015a6bce9ae1c1ceb83588ca314317cbb5
[INFO] documenting nathanfaucett/rs-lisp against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnathanfaucett%2Frs-lisp" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nathanfaucett/rs-lisp on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nathanfaucett/rs-lisp
[INFO] finished tweaking git repo https://github.com/nathanfaucett/rs-lisp
[INFO] tweaked toml for git repo https://github.com/nathanfaucett/rs-lisp written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/nathanfaucett/rs-lisp already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rustc-workspace-hack v1.0.0
[INFO] [stderr]   Downloaded crypto-hash v0.3.4
[INFO] [stderr]   Downloaded fd-lock v3.0.4
[INFO] [stderr]   Downloaded io-lifetimes v0.5.3
[INFO] [stderr]   Downloaded commoncrypto-sys v0.2.0
[INFO] [stderr]   Downloaded crates-io v0.33.1
[INFO] [stderr]   Downloaded cargo-util v0.1.2
[INFO] [stderr]   Downloaded rustfix v0.6.0
[INFO] [stderr]   Downloaded rustix v0.33.4
[INFO] [stderr]   Downloaded commoncrypto v0.2.0
[INFO] [stderr]   Downloaded rand_xoshiro v0.4.0
[INFO] [stderr]   Downloaded git2-curl v0.14.1
[INFO] [stderr]   Downloaded bitmaps v2.1.0
[INFO] [stderr]   Downloaded curl v0.4.43
[INFO] [stderr]   Downloaded sized-chunks v0.6.5
[INFO] [stderr]   Downloaded serde_ignored v0.1.2
[INFO] [stderr]   Downloaded fwdansi v1.1.0
[INFO] [stderr]   Downloaded shell-escape v0.1.5
[INFO] [stderr]   Downloaded im-rc v15.0.0
[INFO] [stderr]   Downloaded git2 v0.13.25
[INFO] [stderr]   Downloaded opener v0.5.0
[INFO] [stderr]   Downloaded libssh2-sys v0.2.23
[INFO] [stderr]   Downloaded linux-raw-sys v0.0.42
[INFO] [stderr]   Downloaded libgit2-sys v0.12.26+1.3.0
[INFO] [stderr]   Downloaded cargo v0.60.0
[INFO] [stderr]   Downloaded libnghttp2-sys v0.1.7+1.45.0
[INFO] [stderr]   Downloaded curl-sys v0.4.53+curl-7.82.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+1.61.0" "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] edc660296ccafe677ed5cb44c9552580e7f15b3251d7844a51d461b5b2a32524
[INFO] running `Command { std: "docker" "start" "-a" "edc660296ccafe677ed5cb44c9552580e7f15b3251d7844a51d461b5b2a32524", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "edc660296ccafe677ed5cb44c9552580e7f15b3251d7844a51d461b5b2a32524", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "edc660296ccafe677ed5cb44c9552580e7f15b3251d7844a51d461b5b2a32524", kill_on_drop: false }`
[INFO] [stdout] edc660296ccafe677ed5cb44c9552580e7f15b3251d7844a51d461b5b2a32524
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+1.61.0" "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] 878eebf5520617628ade276f79d45fabef0ac1fc5502c9e6dd81ba6366f616b7
[INFO] running `Command { std: "docker" "start" "-a" "878eebf5520617628ade276f79d45fabef0ac1fc5502c9e6dd81ba6366f616b7", kill_on_drop: false }`
[INFO] [stderr]    Compiling io-lifetimes v0.5.3
[INFO] [stderr]    Compiling rustix v0.33.4
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking linux-raw-sys v0.0.42
[INFO] [stderr]     Checking lisp-gc v0.1.0 (/opt/rustwide/workdir/gc)
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking libloading v0.7.3
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking getrandom v0.2.5
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking parking_lot_core v0.9.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking nix v0.23.1
[INFO] [stderr]     Checking lock_api v0.4.6
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking ahash v0.7.6
[INFO] [stderr]     Checking parking_lot v0.12.0
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]     Checking hashbrown v0.12.0
[INFO] [stderr]     Checking clap v3.1.6
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]     Checking fd-lock v3.0.4
[INFO] [stderr]     Checking rustyline v9.1.2
[INFO] [stderr]     Checking lisp-runtime v0.1.0 (/opt/rustwide/workdir/runtime)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> runtime/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(arbitrary_self_types)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> runtime/src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(unboxed_closures)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> runtime/src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(fn_traits)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> runtime/src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(fn_traits)]
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 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 compile `lisp-runtime` due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "878eebf5520617628ade276f79d45fabef0ac1fc5502c9e6dd81ba6366f616b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "878eebf5520617628ade276f79d45fabef0ac1fc5502c9e6dd81ba6366f616b7", kill_on_drop: false }`
[INFO] [stdout] 878eebf5520617628ade276f79d45fabef0ac1fc5502c9e6dd81ba6366f616b7