[INFO] cloning repository https://github.com/Shizcow/caller_modpath
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Shizcow/caller_modpath" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShizcow%2Fcaller_modpath", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShizcow%2Fcaller_modpath'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 73ae6e0e2e2faf0c475558b0309d2459eec9b1e8
[INFO] documenting Shizcow/caller_modpath 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%2FShizcow%2Fcaller_modpath" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Shizcow/caller_modpath 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/Shizcow/caller_modpath
[INFO] finished tweaking git repo https://github.com/Shizcow/caller_modpath
[INFO] tweaked toml for git repo https://github.com/Shizcow/caller_modpath written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 1f5334acc9ad635dce372fbaf15374ea9d59258c3b0c0d6c3c9a423e926a92f1
[INFO] running `Command { std: "docker" "start" "-a" "1f5334acc9ad635dce372fbaf15374ea9d59258c3b0c0d6c3c9a423e926a92f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f5334acc9ad635dce372fbaf15374ea9d59258c3b0c0d6c3c9a423e926a92f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f5334acc9ad635dce372fbaf15374ea9d59258c3b0c0d6c3c9a423e926a92f1", kill_on_drop: false }`
[INFO] [stdout] 1f5334acc9ad635dce372fbaf15374ea9d59258c3b0c0d6c3c9a423e926a92f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] [stdout] d6c47f96fb7117cf46b87f62492ff4449b24b76250a49e400d3ab05e9cd6d6fe
[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" "d6c47f96fb7117cf46b87f62492ff4449b24b76250a49e400d3ab05e9cd6d6fe", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling caller_modpath_macros v0.1.1 (/opt/rustwide/workdir/caller_modpath_macros)
[INFO] [stderr]     Checking unicode-ident v1.0.0
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling indexmap v1.8.2
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]     Checking proc-macro2 v1.0.39
[INFO] [stderr]     Checking quote v1.0.18
[INFO] [stderr]     Checking syn v1.0.95
[INFO] [stderr]    Compiling getrandom v0.2.6
[INFO] [stderr]     Checking toml v0.5.9
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]  Documenting caller_modpath_macros v0.1.1 (/opt/rustwide/workdir/caller_modpath_macros)
[INFO] [stderr]     Checking cargo-manifest v0.2.6
[INFO] [stderr]     Checking caller_modpath v0.1.1 (/opt/rustwide/workdir/caller_modpath)
[INFO] [stderr]  Documenting caller_modpath v0.1.1 (/opt/rustwide/workdir/caller_modpath)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> caller_modpath/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_span)]
[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 `caller_modpath` 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 stable release channel
[INFO] [stdout]  --> caller_modpath/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_span)]
[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 `caller_modpath`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name caller_modpath caller_modpath/src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=c79154bb4bfed393 -L dependency=/opt/rustwide/target/debug/deps --extern caller_modpath_macros=/opt/rustwide/target/debug/deps/libcaller_modpath_macros-61589c04f09c7446.so --extern cargo_manifest=/opt/rustwide/target/debug/deps/libcargo_manifest-81885b511ca86073.rmeta --extern glob=/opt/rustwide/target/debug/deps/libglob-ad7a2bc260eeb594.rmeta --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-c1d3bfa6658bd3cb.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-5e860005d80c271d.rmeta --extern uuid=/opt/rustwide/target/debug/deps/libuuid-077f891454cb842a.rmeta --cap-lints=warn --crate-version 0.1.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "d6c47f96fb7117cf46b87f62492ff4449b24b76250a49e400d3ab05e9cd6d6fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6c47f96fb7117cf46b87f62492ff4449b24b76250a49e400d3ab05e9cd6d6fe", kill_on_drop: false }`
[INFO] [stdout] d6c47f96fb7117cf46b87f62492ff4449b24b76250a49e400d3ab05e9cd6d6fe