[INFO] cloning repository https://github.com/holochain/holochain-tracing
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/holochain/holochain-tracing" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fholochain%2Fholochain-tracing", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fholochain%2Fholochain-tracing'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6ab8b28a877e841472fb2ddec6042228ce17e956
[INFO] documenting holochain/holochain-tracing 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%2Fholochain%2Fholochain-tracing" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/holochain/holochain-tracing 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/holochain/holochain-tracing
[INFO] finished tweaking git repo https://github.com/holochain/holochain-tracing
[INFO] tweaked toml for git repo https://github.com/holochain/holochain-tracing written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/holochain/holochain-tracing 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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] [stdout] 3a065e04d21702da1ea017c529384d69af0a0cf3d71d8129079181de46c3c24c
[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" "3a065e04d21702da1ea017c529384d69af0a0cf3d71d8129079181de46c3c24c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a065e04d21702da1ea017c529384d69af0a0cf3d71d8129079181de46c3c24c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a065e04d21702da1ea017c529384d69af0a0cf3d71d8129079181de46c3c24c", kill_on_drop: false }`
[INFO] [stdout] 3a065e04d21702da1ea017c529384d69af0a0cf3d71d8129079181de46c3c24c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] [stdout] b9d9171a0927b3a4fba6d8ff2ab30d5ae7545e7b9b1e3f062e100ac0d89f8f27
[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" "b9d9171a0927b3a4fba6d8ff2ab30d5ae7545e7b9b1e3f062e100ac0d89f8f27", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling proc-macro-nested v0.1.3
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]     Checking futures-core v0.3.4
[INFO] [stderr]    Compiling protobuf v2.10.1
[INFO] [stderr]     Checking regex-syntax v0.6.14
[INFO] [stderr]    Compiling prometheus v0.7.0
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking utf8-ranges v1.0.4
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]     Checking unicode-xid v0.2.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]     Checking tracing-core v0.1.10
[INFO] [stderr]    Compiling backtrace v0.3.27
[INFO] [stderr]     Checking sharded-slab v0.0.8
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]     Checking c2-chacha v0.2.3
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking hostname v0.1.5
[INFO] [stderr]     Checking aho-corasick v0.7.8
[INFO] [stderr]     Checking futures-channel v0.3.4
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]     Checking threadpool v1.7.1
[INFO] [stderr]     Checking tracing-log v0.1.1
[INFO] [stderr]     Checking crossbeam-channel v0.3.8
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking num-integer v0.1.42
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking regex-automata v0.1.8
[INFO] [stderr]     Checking regex v1.3.4
[INFO] [stderr]     Checking matchers v0.0.1
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling trackable_derive v0.1.3
[INFO] [stderr]    Compiling async-trait v0.1.24
[INFO] [stderr]    Compiling pin-project-internal v0.4.8
[INFO] [stderr]    Compiling tracing-attributes v0.1.7
[INFO] [stderr]    Compiling shrinkwraprs v0.3.0
[INFO] [stderr]     Checking trackable v0.2.23
[INFO] [stderr]     Checking thrift_codec v0.1.1
[INFO] [stderr]     Checking rustracing v0.2.1
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]     Checking tracing v0.1.13
[INFO] [stderr]     Checking rustracing_jaeger v0.2.1
[INFO] [stderr]     Checking pin-project v0.4.8
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]     Checking futures-executor v0.3.4
[INFO] [stderr]     Checking futures v0.3.4
[INFO] [stderr]     Checking integer-encoding v1.0.8
[INFO] [stderr]     Checking thrift v0.13.0
[INFO] [stderr]     Checking bincode v1.2.1
[INFO] [stderr]     Checking tracing-serde v0.1.1
[INFO] [stderr]     Checking serde_json v1.0.47
[INFO] [stderr]     Checking opentelemetry v0.2.0
[INFO] [stderr]     Checking tracing-subscriber v0.2.3
[INFO] [stderr]     Checking opentelemetry-jaeger v0.1.0
[INFO] [stderr]     Checking holochain_tracing v0.0.25 (/opt/rustwide/workdir/crates/tracing)
[INFO] [stderr]  Documenting holochain_tracing v0.0.25 (/opt/rustwide/workdir/crates/tracing)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> crates/tracing/src/stack.rs:106:31
[INFO] [stdout]     |
[INFO] [stdout] 106 |         Mode::Panic => panic!(msg),
[INFO] [stdout]     |                               ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]     = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 106 |         Mode::Panic => panic!("{}", msg),
[INFO] [stdout]     |                               +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]  Documenting holochain_tracing_macros v0.0.25 (/opt/rustwide/workdir/crates/tracing_macros)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> crates/tracing_macros/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 `holochain_tracing_macros`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type proc-macro --crate-name holochain_tracing_macros crates/tracing_macros/src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --cfg 'feature="tracing-on"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=4edb7c8675437a8b -L dependency=/opt/rustwide/target/debug/deps --extern crossbeam_channel=/opt/rustwide/target/debug/deps/libcrossbeam_channel-83e40d60b2a841ae.rmeta --extern holochain_tracing=/opt/rustwide/target/debug/deps/libholochain_tracing-c82182fd2185fa92.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-701e134f05ff346a.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-85102257fa40062e.rmeta --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-853f07b14f405385.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-5dfa41cd16565360.rmeta --extern syn=/opt/rustwide/target/debug/deps/libsyn-ab469f119891b857.rmeta --extern proc_macro --cap-lints=warn --crate-version 0.0.25` (exit status: 1)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "b9d9171a0927b3a4fba6d8ff2ab30d5ae7545e7b9b1e3f062e100ac0d89f8f27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9d9171a0927b3a4fba6d8ff2ab30d5ae7545e7b9b1e3f062e100ac0d89f8f27", kill_on_drop: false }`
[INFO] [stdout] b9d9171a0927b3a4fba6d8ff2ab30d5ae7545e7b9b1e3f062e100ac0d89f8f27