[INFO] cloning repository https://github.com/cedric-h/rpg
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cedric-h/rpg" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcedric-h%2Frpg", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcedric-h%2Frpg'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 21cb1069bce3fb66ce9f1a5ea6180ff79629fbfe
[INFO] testing cedric-h/rpg against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcedric-h%2Frpg" "/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/cedric-h/rpg 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/cedric-h/rpg
[INFO] finished tweaking git repo https://github.com/cedric-h/rpg
[INFO] tweaked toml for git repo https://github.com/cedric-h/rpg written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/cedric-h/rpg 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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/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] 8e91079b49168b45ab1ed9401f636c87bee32dee8756a68b46794355ca4fa713
[INFO] running `Command { std: "docker" "start" "-a" "8e91079b49168b45ab1ed9401f636c87bee32dee8756a68b46794355ca4fa713", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8e91079b49168b45ab1ed9401f636c87bee32dee8756a68b46794355ca4fa713", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e91079b49168b45ab1ed9401f636c87bee32dee8756a68b46794355ca4fa713", kill_on_drop: false }`
[INFO] [stdout] 8e91079b49168b45ab1ed9401f636c87bee32dee8756a68b46794355ca4fa713
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 176fbcea0b2224a608113d86478862018aada7085d9cd114b63be00e4ba12a4f
[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" "176fbcea0b2224a608113d86478862018aada7085d9cd114b63be00e4ba12a4f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling sapp-linux v0.1.9
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling glam v0.9.5
[INFO] [stderr]    Compiling ttf-parser v0.8.2
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling ahash v0.4.6
[INFO] [stderr]    Compiling macroquad_macro v0.1.0 (https://github.com/not-fl3/macroquad#2201de80)
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling smallvec v1.4.2
[INFO] [stderr]    Compiling stb_truetype v0.3.1
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling ordered-float v1.1.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling rusttype v0.8.3
[INFO] [stderr]    Compiling rusttype v0.7.9
[INFO] [stderr]    Compiling miniquad_text_rusttype v0.1.2
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling megaui v0.2.14 (https://github.com/cedric-h/megaui.git?branch=last_item#af008f56)
[INFO] [stderr]    Compiling fontdue v0.3.2
[INFO] [stderr]    Compiling miniquad v0.3.0-alpha.22
[INFO] [stderr]    Compiling quad-gl v0.2.11 (https://github.com/not-fl3/macroquad#2201de80)
[INFO] [stderr]    Compiling macroquad v0.3.0-alpha.11 (https://github.com/not-fl3/macroquad#2201de80)
[INFO] [stderr]    Compiling megaui-macroquad v0.1.2 (https://github.com/not-fl3/megaui-macroquad#ccb791ba)
[INFO] [stderr]    Compiling hecs-macros v0.4.0 (https://github.com/Ralith/hecs#e78a46a0)
[INFO] [stderr]    Compiling mini-internal v0.1.13
[INFO] [stderr]    Compiling miniserde v0.1.13
[INFO] [stderr]    Compiling hecs v0.3.0 (https://github.com/Ralith/hecs#e78a46a0)
[INFO] [stderr]    Compiling rpg 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(drain_filter)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(array_map)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(result_copied)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rpg`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "176fbcea0b2224a608113d86478862018aada7085d9cd114b63be00e4ba12a4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "176fbcea0b2224a608113d86478862018aada7085d9cd114b63be00e4ba12a4f", kill_on_drop: false }`
[INFO] [stdout] 176fbcea0b2224a608113d86478862018aada7085d9cd114b63be00e4ba12a4f