[INFO] fetching crate ranged_integers 0.4.2...
[INFO] testing ranged_integers-0.4.2 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate ranged_integers 0.4.2 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate ranged_integers 0.4.2 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 ranged_integers 0.4.2
[INFO] finished tweaking crates.io crate ranged_integers 0.4.2
[INFO] tweaked toml for crates.io crate ranged_integers 0.4.2 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate ranged_integers 0.4.2 already has a lockfile, it will not be regenerated
[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-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 854d6dc75345810c387e1a4a86841be7248dfda30f90e3f329e98705e3c6d315
[INFO] running `Command { std: "docker" "start" "-a" "854d6dc75345810c387e1a4a86841be7248dfda30f90e3f329e98705e3c6d315", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "854d6dc75345810c387e1a4a86841be7248dfda30f90e3f329e98705e3c6d315", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "854d6dc75345810c387e1a4a86841be7248dfda30f90e3f329e98705e3c6d315", kill_on_drop: false }`
[INFO] [stdout] 854d6dc75345810c387e1a4a86841be7248dfda30f90e3f329e98705e3c6d315
[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" "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] cbd74c36d2faef52b22fbac60e00bac8e777990c1fc14b3691e0028adbbfd79a
[INFO] running `Command { std: "docker" "start" "-a" "cbd74c36d2faef52b22fbac60e00bac8e777990c1fc14b3691e0028adbbfd79a", kill_on_drop: false }`
[INFO] [stderr]    Compiling ranged_integers v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]    --> src/lib.rs:291:1
[INFO] [stdout]     |
[INFO] [stdout] 291 | #![feature(const_generics)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]    --> src/lib.rs:292:1
[INFO] [stdout]     |
[INFO] [stdout] 292 | #![feature(const_evaluatable_checked)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]    --> src/lib.rs:293:1
[INFO] [stdout]     |
[INFO] [stdout] 293 | #![feature(const_panic)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]    --> src/lib.rs:294:1
[INFO] [stdout]     |
[INFO] [stdout] 294 | #![feature(const_trait_impl)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]    --> src/lib.rs:295:1
[INFO] [stdout]     |
[INFO] [stdout] 295 | #![feature(const_raw_ptr_deref)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]    --> src/lib.rs:296:1
[INFO] [stdout]     |
[INFO] [stdout] 296 | #![feature(specialization)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 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 `ranged_integers` due to 7 previous errors
[INFO] running `Command { std: "docker" "inspect" "cbd74c36d2faef52b22fbac60e00bac8e777990c1fc14b3691e0028adbbfd79a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbd74c36d2faef52b22fbac60e00bac8e777990c1fc14b3691e0028adbbfd79a", kill_on_drop: false }`
[INFO] [stdout] cbd74c36d2faef52b22fbac60e00bac8e777990c1fc14b3691e0028adbbfd79a
