[INFO] cloning repository https://github.com/luxrck/raytrace
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/luxrck/raytrace" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluxrck%2Fraytrace", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluxrck%2Fraytrace'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 16d868d9c0cefaecd9ab433046cac2ab252d5985
[INFO] testing luxrck/raytrace against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluxrck%2Fraytrace" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/luxrck/raytrace on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/luxrck/raytrace
[INFO] finished tweaking git repo https://github.com/luxrck/raytrace
[INFO] tweaked toml for git repo https://github.com/luxrck/raytrace written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/luxrck/raytrace already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 396a4c86c3352e3c768e15797c6c7ffeb34e21717901a71578ed0fe56c8e9db3
[INFO] running `Command { std: "docker" "start" "-a" "396a4c86c3352e3c768e15797c6c7ffeb34e21717901a71578ed0fe56c8e9db3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "396a4c86c3352e3c768e15797c6c7ffeb34e21717901a71578ed0fe56c8e9db3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "396a4c86c3352e3c768e15797c6c7ffeb34e21717901a71578ed0fe56c8e9db3", kill_on_drop: false }`
[INFO] [stdout] 396a4c86c3352e3c768e15797c6c7ffeb34e21717901a71578ed0fe56c8e9db3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6ad0389133aba312a755d5b25d0116b48ce2ffe924c7d640fbc3c8f389b4512a
[INFO] running `Command { std: "docker" "start" "-a" "6ad0389133aba312a755d5b25d0116b48ce2ffe924c7d640fbc3c8f389b4512a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling scopeguard v1.0.0
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling adler32 v1.0.4
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling libm v0.1.4
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling color_quant v1.0.1
[INFO] [stderr]    Compiling crossbeam-utils v0.7.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.0
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling memoffset v0.5.3
[INFO] [stderr]    Compiling num_cpus v1.11.1
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling inflate v0.4.5
[INFO] [stderr]    Compiling gif v0.10.3
[INFO] [stderr]    Compiling matrixmultiply v0.2.3
[INFO] [stderr]    Compiling rand v0.7.2
[INFO] [stderr]    Compiling deflate v0.7.20
[INFO] [stderr]    Compiling crossbeam-queue v0.2.1
[INFO] [stderr]    Compiling rand_distr v0.2.2
[INFO] [stderr]    Compiling alga v0.9.2
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling crossbeam-deque v0.7.2
[INFO] [stderr]    Compiling png v0.15.2
[INFO] [stderr]    Compiling generic-array v0.13.2
[INFO] [stderr]    Compiling nalgebra v0.19.0
[INFO] [stderr]    Compiling rayon v1.3.0
[INFO] [stderr]    Compiling jpeg-decoder v0.1.18
[INFO] [stderr]    Compiling tiff v0.3.1
[INFO] [stderr]    Compiling image v0.22.3
[INFO] [stderr]    Compiling raytrace v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(box_syntax)]
[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 `raytrace` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "6ad0389133aba312a755d5b25d0116b48ce2ffe924c7d640fbc3c8f389b4512a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ad0389133aba312a755d5b25d0116b48ce2ffe924c7d640fbc3c8f389b4512a", kill_on_drop: false }`
[INFO] [stdout] 6ad0389133aba312a755d5b25d0116b48ce2ffe924c7d640fbc3c8f389b4512a