[INFO] cloning repository https://github.com/ametisf/snapshot_repeat
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ametisf/snapshot_repeat" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fametisf%2Fsnapshot_repeat", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fametisf%2Fsnapshot_repeat'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] de4294bd29df1df4da16b70d04be1fe3b50c41f1
[INFO] testing ametisf/snapshot_repeat against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fametisf%2Fsnapshot_repeat" "/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/ametisf/snapshot_repeat on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ametisf/snapshot_repeat
[INFO] finished tweaking git repo https://github.com/ametisf/snapshot_repeat
[INFO] tweaked toml for git repo https://github.com/ametisf/snapshot_repeat written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/ametisf/snapshot_repeat already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 74f12b74ae0fb59ec6d3f0af68a41708606ecb927415269f397809620f2ca501
[INFO] running `Command { std: "docker" "start" "-a" "74f12b74ae0fb59ec6d3f0af68a41708606ecb927415269f397809620f2ca501", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74f12b74ae0fb59ec6d3f0af68a41708606ecb927415269f397809620f2ca501", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74f12b74ae0fb59ec6d3f0af68a41708606ecb927415269f397809620f2ca501", kill_on_drop: false }`
[INFO] [stdout] 74f12b74ae0fb59ec6d3f0af68a41708606ecb927415269f397809620f2ca501
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7aae62fb7e87f1d0789d485f30adc9ac22a0c9e976eae27761c1feb9b2e5786c
[INFO] running `Command { std: "docker" "start" "-a" "7aae62fb7e87f1d0789d485f30adc9ac22a0c9e976eae27761c1feb9b2e5786c", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling vst v0.2.1 (https://github.com/RustAudio/vst-rs?rev=02847c7#02847c73)
[INFO] [stderr]    Compiling snapshot_repeat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(const_generics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: removed in favor of `#![feature(adt_const_params]` and `#![feature(generic_const_exprs)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![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:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(slice_fill)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `f32` is forbidden as the type of a const generic parameter
[INFO] [stdout]   --> src/lib.rs:28:28
[INFO] [stdout]    |
[INFO] [stdout] 28 | struct LinScale<const LOW: f32, const HIGH: f32>;
[INFO] [stdout]    |                            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the only supported types are integers, `bool` and `char`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `f32` is forbidden as the type of a const generic parameter
[INFO] [stdout]   --> src/lib.rs:28:45
[INFO] [stdout]    |
[INFO] [stdout] 28 | struct LinScale<const LOW: f32, const HIGH: f32>;
[INFO] [stdout]    |                                             ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the only supported types are integers, `bool` and `char`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `f32` is forbidden as the type of a const generic parameter
[INFO] [stdout]   --> src/lib.rs:30:17
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl<const LOW: f32, const HIGH: f32> Scale for LinScale<LOW, HIGH> {
[INFO] [stdout]    |                 ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the only supported types are integers, `bool` and `char`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `f32` is forbidden as the type of a const generic parameter
[INFO] [stdout]   --> src/lib.rs:30:34
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl<const LOW: f32, const HIGH: f32> Scale for LinScale<LOW, HIGH> {
[INFO] [stdout]    |                                  ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the only supported types are integers, `bool` and `char`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 7 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `snapshot_repeat` due to 8 previous errors
[INFO] running `Command { std: "docker" "inspect" "7aae62fb7e87f1d0789d485f30adc9ac22a0c9e976eae27761c1feb9b2e5786c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7aae62fb7e87f1d0789d485f30adc9ac22a0c9e976eae27761c1feb9b2e5786c", kill_on_drop: false }`
[INFO] [stdout] 7aae62fb7e87f1d0789d485f30adc9ac22a0c9e976eae27761c1feb9b2e5786c