[INFO] fetching crate split_tokens 0.1.0...
[INFO] testing split_tokens-0.1.0 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate split_tokens 0.1.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate split_tokens 0.1.0 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate split_tokens 0.1.0
[INFO] finished tweaking crates.io crate split_tokens 0.1.0
[INFO] tweaked toml for crates.io crate split_tokens 0.1.0 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "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" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e3fdc01365994be9173d1bbffa61d6f5a9fb136a1fe04b5d68d5749e9a035d52
[INFO] running `Command { std: "docker" "start" "-a" "e3fdc01365994be9173d1bbffa61d6f5a9fb136a1fe04b5d68d5749e9a035d52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e3fdc01365994be9173d1bbffa61d6f5a9fb136a1fe04b5d68d5749e9a035d52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3fdc01365994be9173d1bbffa61d6f5a9fb136a1fe04b5d68d5749e9a035d52", kill_on_drop: false }`
[INFO] [stdout] e3fdc01365994be9173d1bbffa61d6f5a9fb136a1fe04b5d68d5749e9a035d52
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c2a53d8640770039ad64ad2e0b061867d6321d7e2aed57883ed680c0d3ba7838
[INFO] running `Command { std: "docker" "start" "-a" "c2a53d8640770039ad64ad2e0b061867d6321d7e2aed57883ed680c0d3ba7838", kill_on_drop: false }`
[INFO] [stderr]    Compiling split_tokens v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "c2a53d8640770039ad64ad2e0b061867d6321d7e2aed57883ed680c0d3ba7838", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2a53d8640770039ad64ad2e0b061867d6321d7e2aed57883ed680c0d3ba7838", kill_on_drop: false }`
[INFO] [stdout] c2a53d8640770039ad64ad2e0b061867d6321d7e2aed57883ed680c0d3ba7838
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 189f984ccb8f876badcdc7143dd26222ddd9ab4050a0862c60ff67abb671126b
[INFO] running `Command { std: "docker" "start" "-a" "189f984ccb8f876badcdc7143dd26222ddd9ab4050a0862c60ff67abb671126b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling split_tokens v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] note: trace_macro
[INFO] [stdout]   --> src/lib.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 65 |     split_tokens!{(>>+=-=<<) then stringify!()};
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expanding `split_tokens! { (>> += -= <<) then stringify! () }`
[INFO] [stdout]    = note: to `split_tokens! (@ inner(>> += -= <<) () (stringify)) ;`
[INFO] [stdout]    = note: expanding `split_tokens! { @ inner(>> += -= <<) () (stringify) }`
[INFO] [stdout]    = note: to `split_tokens! (@ inner(+= -= <<) (> >) (stringify)) ;`
[INFO] [stdout]    = note: expanding `split_tokens! { @ inner(+= -= <<) (> >) (stringify) }`
[INFO] [stdout]    = note: to `split_tokens! (@ inner(-= <<) (> > + =) (stringify)) ;`
[INFO] [stdout]    = note: expanding `split_tokens! { @ inner(-= <<) (> > + =) (stringify) }`
[INFO] [stdout]    = note: to `split_tokens! (@ inner(<<) (> > + = - =) (stringify)) ;`
[INFO] [stdout]    = note: expanding `split_tokens! { @ inner(<<) (> > + = - =) (stringify) }`
[INFO] [stdout]    = note: to `split_tokens! (@ inner() (> > + = - = < <) (stringify)) ;`
[INFO] [stdout]    = note: expanding `split_tokens! { @ inner() (> > + = - = < <) (stringify) }`
[INFO] [stdout]    = note: to `stringify! (() (> > + = - = < <)) ;`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:19
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![cfg_attr(test, feature(trace_macros))]
[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 `split_tokens` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "189f984ccb8f876badcdc7143dd26222ddd9ab4050a0862c60ff67abb671126b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "189f984ccb8f876badcdc7143dd26222ddd9ab4050a0862c60ff67abb671126b", kill_on_drop: false }`
[INFO] [stdout] 189f984ccb8f876badcdc7143dd26222ddd9ab4050a0862c60ff67abb671126b
