[INFO] cloning repository https://github.com/3541/ray
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/3541/ray" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F3541%2Fray", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F3541%2Fray'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 546cba7fc94c1e8a22fec467a6e58d7436f89c18
[INFO] testing 3541/ray against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F3541%2Fray" "/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/3541/ray 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] started tweaking git repo https://github.com/3541/ray
[INFO] finished tweaking git repo https://github.com/3541/ray
[INFO] tweaked toml for git repo https://github.com/3541/ray written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/3541/ray 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-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" "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] b018e80257e304d3e3894bd767bf88a53aab29d790642011fb20c4dc9fb6817d
[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" "b018e80257e304d3e3894bd767bf88a53aab29d790642011fb20c4dc9fb6817d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b018e80257e304d3e3894bd767bf88a53aab29d790642011fb20c4dc9fb6817d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b018e80257e304d3e3894bd767bf88a53aab29d790642011fb20c4dc9fb6817d", kill_on_drop: false }`
[INFO] [stdout] b018e80257e304d3e3894bd767bf88a53aab29d790642011fb20c4dc9fb6817d
[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" "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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 75efe103be32c82c5e49c828498c2990a392962d8b03821c4bf9a062987f01f1
[INFO] running `Command { std: "docker" "start" "-a" "75efe103be32c82c5e49c828498c2990a392962d8b03821c4bf9a062987f01f1", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling syn v1.0.53
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling regex-syntax v0.6.21
[INFO] [stderr]    Compiling anyhow v1.0.34
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling terminal_size v0.1.15
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling regex v1.4.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling console v0.13.0
[INFO] [stderr]    Compiling indicatif v0.15.0
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]    Compiling derive_more v0.99.11
[INFO] [stderr]    Compiling structopt v0.3.21
[INFO] [stderr]    Compiling ray v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0658]: use of unstable library feature 'clamp'
[INFO] [stdout]   --> src/color.rs:29:31
[INFO] [stdout]    |
[INFO] [stdout] 29 |             (scaled[0].sqrt().clamp(0.0, 0.999) * 256.0) as u8,
[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]   --> src/color.rs:30:31
[INFO] [stdout]    |
[INFO] [stdout] 30 |             (scaled[1].sqrt().clamp(0.0, 0.999) * 256.0) as u8,
[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]   --> src/color.rs:31:31
[INFO] [stdout]    |
[INFO] [stdout] 31 |             (scaled[2].sqrt().clamp(0.0, 0.999) * 256.0) as u8,
[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]   --> src/surface/material/metal.rs:15:24
[INFO] [stdout]    |
[INFO] [stdout] 15 |             fuzz: fuzz.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: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0658`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ray`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "75efe103be32c82c5e49c828498c2990a392962d8b03821c4bf9a062987f01f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75efe103be32c82c5e49c828498c2990a392962d8b03821c4bf9a062987f01f1", kill_on_drop: false }`
[INFO] [stdout] 75efe103be32c82c5e49c828498c2990a392962d8b03821c4bf9a062987f01f1