[INFO] cloning repository https://github.com/Peter-JanGootzen/rusty-obj-viewer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Peter-JanGootzen/rusty-obj-viewer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPeter-JanGootzen%2Frusty-obj-viewer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPeter-JanGootzen%2Frusty-obj-viewer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 995d5893f1072e2856ec4b61e98c884974f00726
[INFO] testing Peter-JanGootzen/rusty-obj-viewer against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPeter-JanGootzen%2Frusty-obj-viewer" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Peter-JanGootzen/rusty-obj-viewer 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/Peter-JanGootzen/rusty-obj-viewer
[INFO] finished tweaking git repo https://github.com/Peter-JanGootzen/rusty-obj-viewer
[INFO] tweaked toml for git repo https://github.com/Peter-JanGootzen/rusty-obj-viewer written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/Peter-JanGootzen/rusty-obj-viewer 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 12104ab7d7d6a5f3ed6594635a3dbc54eb4fcc43eb2582d7954c27a7bed5b127
[INFO] running `Command { std: "docker" "start" "-a" "12104ab7d7d6a5f3ed6594635a3dbc54eb4fcc43eb2582d7954c27a7bed5b127", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "12104ab7d7d6a5f3ed6594635a3dbc54eb4fcc43eb2582d7954c27a7bed5b127", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12104ab7d7d6a5f3ed6594635a3dbc54eb4fcc43eb2582d7954c27a7bed5b127", kill_on_drop: false }`
[INFO] [stdout] 12104ab7d7d6a5f3ed6594635a3dbc54eb4fcc43eb2582d7954c27a7bed5b127
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 423cb5140fbd475dea64e0683045da7e4cf238312c18aad8d5b61ca2ba129aa4
[INFO] running `Command { std: "docker" "start" "-a" "423cb5140fbd475dea64e0683045da7e4cf238312c18aad8d5b61ca2ba129aa4", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling syn v1.0.13
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling xml-rs v0.8.0
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling nodrop v0.1.14
[INFO] [stderr]    Compiling staticsort v0.1.4
[INFO] [stderr]    Compiling tuple_utils v0.3.0
[INFO] [stderr]    Compiling wavefront_obj v2.0.4
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling hashbrown v0.6.3
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/staticsort-0.1.4/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(const_fn, const_if_match, const_loop)]
[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 `staticsort`
[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" "423cb5140fbd475dea64e0683045da7e4cf238312c18aad8d5b61ca2ba129aa4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "423cb5140fbd475dea64e0683045da7e4cf238312c18aad8d5b61ca2ba129aa4", kill_on_drop: false }`
[INFO] [stdout] 423cb5140fbd475dea64e0683045da7e4cf238312c18aad8d5b61ca2ba129aa4