[INFO] fetching crate holochain_tracing_macros 0.0.24...
[INFO] checking holochain_tracing_macros-0.0.24 against 1.55.0 for beta-1.56-3
[INFO] extracting crate holochain_tracing_macros 0.0.24 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate holochain_tracing_macros 0.0.24 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate holochain_tracing_macros 0.0.24
[INFO] finished tweaking crates.io crate holochain_tracing_macros 0.0.24
[INFO] tweaked toml for crates.io crate holochain_tracing_macros 0.0.24 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "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] a450f078da6019cd4f4497febcd4cb8de6a43c7da5975249885b958a34f42a12
[INFO] running `Command { std: "docker" "start" "-a" "a450f078da6019cd4f4497febcd4cb8de6a43c7da5975249885b958a34f42a12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a450f078da6019cd4f4497febcd4cb8de6a43c7da5975249885b958a34f42a12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a450f078da6019cd4f4497febcd4cb8de6a43c7da5975249885b958a34f42a12", kill_on_drop: false }`
[INFO] [stdout] a450f078da6019cd4f4497febcd4cb8de6a43c7da5975249885b958a34f42a12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "RUSTFLAGS=--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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1a5664a9c2424a2039876e3ee43e0fb85c6e0e78f89318968c8179ea2f5a8b3c
[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" "1a5664a9c2424a2039876e3ee43e0fb85c6e0e78f89318968c8179ea2f5a8b3c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.30
[INFO] [stderr]    Compiling syn v1.0.80
[INFO] [stderr]    Compiling protobuf v2.25.1
[INFO] [stderr]    Compiling pin-project-internal v0.4.28
[INFO] [stderr]    Compiling ppv-lite86 v0.2.14
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]     Checking integer-encoding v1.1.7
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]     Checking tracing-core v0.1.10
[INFO] [stderr]     Checking sharded-slab v0.0.8
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling hostname v0.1.5
[INFO] [stderr]    Compiling object v0.26.2
[INFO] [stderr]    Compiling smallvec v0.6.14
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking ordered-float v1.1.1
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]     Checking tracing-log v0.1.1
[INFO] [stderr]     Checking crossbeam-channel v0.3.8
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking thrift v0.13.0
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling matchers v0.0.1
[INFO] [stderr]     Checking quote v1.0.3
[INFO] [stderr]     Checking prometheus v0.7.0
[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling trackable_derive v1.0.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.18
[INFO] [stderr]    Compiling shrinkwraprs v0.3.0
[INFO] [stderr]     Checking trackable v1.2.0
[INFO] [stderr]    Compiling trackable v0.2.24
[INFO] [stderr]    Compiling thrift_codec v0.1.1
[INFO] [stderr]    Compiling rustracing v0.2.1
[INFO] [stderr]     Checking tracing v0.1.13
[INFO] [stderr]     Checking rustracing_jaeger v0.2.1
[INFO] [stderr]     Checking pin-project v0.4.28
[INFO] [stderr]     Checking serde v1.0.104
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling serde_json v1.0.47
[INFO] [stderr]    Compiling tracing-serde v0.1.1
[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 v0.0.24
[INFO] [stderr]     Checking holochain_tracing_macros v0.0.24 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_span)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[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 `holochain_tracing_macros` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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: build failed
[INFO] running `Command { std: "docker" "inspect" "1a5664a9c2424a2039876e3ee43e0fb85c6e0e78f89318968c8179ea2f5a8b3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a5664a9c2424a2039876e3ee43e0fb85c6e0e78f89318968c8179ea2f5a8b3c", kill_on_drop: false }`
[INFO] [stdout] 1a5664a9c2424a2039876e3ee43e0fb85c6e0e78f89318968c8179ea2f5a8b3c
