[INFO] cloning repository https://github.com/manpat/crystal-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/manpat/crystal-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmanpat%2Fcrystal-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmanpat%2Fcrystal-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] da2cee9411f65593d12c58c9ac6abdd4f0726800
[INFO] testing manpat/crystal-rs against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmanpat%2Fcrystal-rs" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/manpat/crystal-rs on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-1/source/.cargo/config
[INFO] started tweaking git repo https://github.com/manpat/crystal-rs
[INFO] finished tweaking git repo https://github.com/manpat/crystal-rs
[INFO] tweaked toml for git repo https://github.com/manpat/crystal-rs written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/manpat/crystal-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 226c1bd6a114dfa9461c3b1d0fb4d9bae78275fa81b153c9b5129ec6eda77af4
[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" "226c1bd6a114dfa9461c3b1d0fb4d9bae78275fa81b153c9b5129ec6eda77af4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "226c1bd6a114dfa9461c3b1d0fb4d9bae78275fa81b153c9b5129ec6eda77af4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "226c1bd6a114dfa9461c3b1d0fb4d9bae78275fa81b153c9b5129ec6eda77af4", kill_on_drop: false }`
[INFO] [stdout] 226c1bd6a114dfa9461c3b1d0fb4d9bae78275fa81b153c9b5129ec6eda77af4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ceb865b1c074199380a59643f3bf9a34b900c9cbedcfdeb5f49c8661e3981575
[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" "ceb865b1c074199380a59643f3bf9a34b900c9cbedcfdeb5f49c8661e3981575", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.37
[INFO] [stderr]    Compiling log v0.4.1
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling gl_generator v0.5.5
[INFO] [stderr]    Compiling rand v0.4.2
[INFO] [stderr]    Compiling common v0.1.0 (https://github.com/manpat/common-rs.git#e69ca8d7)
[INFO] [stderr]    Compiling crystal v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/common-rs-f24099189d4075d5/e69ca8d/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(const_fn)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/common-rs-f24099189d4075d5/e69ca8d/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(box_syntax)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/common-rs-f24099189d4075d5/e69ca8d/src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(ord_max_min)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/common-rs-f24099189d4075d5/e69ca8d/src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(slice_patterns)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/common-rs-f24099189d4075d5/e69ca8d/src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(specialization)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/common-rs-f24099189d4075d5/e69ca8d/src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(inclusive_range_syntax)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/common-rs-f24099189d4075d5/e69ca8d/src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![feature(generators, generator_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'clamp'
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/common-rs-f24099189d4075d5/e69ca8d/src/math/color.rs:40:13
[INFO] [stdout]    |
[INFO] [stdout] 40 |         let s = s.clamp(0.0, 1.0);
[INFO] [stdout]    |                   ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #44095 <https://github.com/rust-lang/rust/issues/44095> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'clamp'
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/common-rs-f24099189d4075d5/e69ca8d/src/math/color.rs:41:13
[INFO] [stdout]    |
[INFO] [stdout] 41 |         let v = v.clamp(0.0, 1.0);
[INFO] [stdout]    |                   ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #44095 <https://github.com/rust-lang/rust/issues/44095> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `resume` found for struct `Box<(dyn std::ops::Generator<Yield = Y, Return = ()> + 'static)>` in the current scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/common-rs-f24099189d4075d5/e69ca8d/src/coro.rs:29:61
[INFO] [stdout]    |
[INFO] [stdout] 29 |         if let GeneratorState::Yielded(yielded_value) = self.coro.resume() {
[INFO] [stdout]    |                                                                   ^^^^^^ method not found in `Box<(dyn std::ops::Generator<Yield = Y, Return = ()> + 'static)>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `resume` found for struct `Box<(dyn std::ops::Generator<Yield = Y, Return = ()> + 'static)>` in the current scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/common-rs-f24099189d4075d5/e69ca8d/src/coro.rs:42:61
[INFO] [stdout]    |
[INFO] [stdout] 42 |         if let GeneratorState::Yielded(yielded_value) = self.coro.resume() {
[INFO] [stdout]    |                                                                   ^^^^^^ method not found in `Box<(dyn std::ops::Generator<Yield = Y, Return = ()> + 'static)>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `resume` found for type parameter `G` in the current scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/common-rs-f24099189d4075d5/e69ca8d/src/coro.rs:78:61
[INFO] [stdout]    |
[INFO] [stdout] 78 |         if let GeneratorState::Yielded(yielded_value) = self.coro.resume() {
[INFO] [stdout]    |                                                                   ^^^^^^ method not found in `G`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `resume` found for type parameter `G` in the current scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/common-rs-f24099189d4075d5/e69ca8d/src/coro.rs:91:61
[INFO] [stdout]    |
[INFO] [stdout] 91 |         if let GeneratorState::Yielded(yielded_value) = self.coro.resume() {
[INFO] [stdout]    |                                                                   ^^^^^^ method not found in `G`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 13 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0599, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `common`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "ceb865b1c074199380a59643f3bf9a34b900c9cbedcfdeb5f49c8661e3981575", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ceb865b1c074199380a59643f3bf9a34b900c9cbedcfdeb5f49c8661e3981575", kill_on_drop: false }`
[INFO] [stdout] ceb865b1c074199380a59643f3bf9a34b900c9cbedcfdeb5f49c8661e3981575