[INFO] fetching crate tracing-chrometrace 0.1.5...
[INFO] testing tracing-chrometrace-0.1.5 against 1.60.0 for beta-1.61-1
[INFO] extracting crate tracing-chrometrace 0.1.5 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate tracing-chrometrace 0.1.5 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tracing-chrometrace 0.1.5
[INFO] finished tweaking crates.io crate tracing-chrometrace 0.1.5
[INFO] tweaked toml for crates.io crate tracing-chrometrace 0.1.5 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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 tracing-appender v0.2.2
[INFO] [stderr]   Downloaded strum_macros v0.22.0
[INFO] [stderr]   Downloaded derive_builder_macro v0.11.1
[INFO] [stderr]   Downloaded derive_builder v0.11.1
[INFO] [stderr]   Downloaded darling_macro v0.12.4
[INFO] [stderr]   Downloaded darling v0.12.4
[INFO] [stderr]   Downloaded derive_builder_core v0.11.1
[INFO] [stderr]   Downloaded darling_core v0.12.4
[INFO] [stderr]   Downloaded tracing-chrome v0.5.0
[INFO] [stderr]   Downloaded strum v0.22.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ea24e5d79356353ff229de25f4280ed81bf52386f4f993c887e0704001dd636a
[INFO] running `Command { std: "docker" "start" "-a" "ea24e5d79356353ff229de25f4280ed81bf52386f4f993c887e0704001dd636a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ea24e5d79356353ff229de25f4280ed81bf52386f4f993c887e0704001dd636a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea24e5d79356353ff229de25f4280ed81bf52386f4f993c887e0704001dd636a", kill_on_drop: false }`
[INFO] [stdout] ea24e5d79356353ff229de25f4280ed81bf52386f4f993c887e0704001dd636a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e05a0cc81c859ecf87a66118b862fb78181d1a2b4f86453a345c649161475cf5
[INFO] running `Command { std: "docker" "start" "-a" "e05a0cc81c859ecf87a66118b862fb78181d1a2b4f86453a345c649161475cf5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling tracing-core v0.1.25
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling regex v1.5.5
[INFO] [stderr]    Compiling sharded-slab v0.1.4
[INFO] [stderr]    Compiling thread_local v1.1.4
[INFO] [stderr]    Compiling darling_core v0.12.4
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling tracing v0.1.33
[INFO] [stderr]    Compiling strum_macros v0.22.0
[INFO] [stderr]    Compiling tracing-log v0.1.2
[INFO] [stderr]    Compiling matchers v0.1.0
[INFO] [stderr]    Compiling tracing-subscriber v0.3.11
[INFO] [stderr]    Compiling darling_macro v0.12.4
[INFO] [stderr]    Compiling strum v0.22.0
[INFO] [stderr]    Compiling darling v0.12.4
[INFO] [stderr]    Compiling derive_builder_core v0.11.1
[INFO] [stderr]    Compiling derive_builder_macro v0.11.1
[INFO] [stderr]    Compiling derive_builder v0.11.1
[INFO] [stderr]    Compiling tracing-chrometrace v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | #![feature(thread_id_value)]
[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:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | #![feature(derive_default_enum)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 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 `tracing-chrometrace` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "e05a0cc81c859ecf87a66118b862fb78181d1a2b4f86453a345c649161475cf5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e05a0cc81c859ecf87a66118b862fb78181d1a2b4f86453a345c649161475cf5", kill_on_drop: false }`
[INFO] [stdout] e05a0cc81c859ecf87a66118b862fb78181d1a2b4f86453a345c649161475cf5