[INFO] fetching crate skyline_smash 0.1.0...
[INFO] checking skyline_smash-0.1.0 against 1.55.0 for beta-1.56-3
[INFO] extracting crate skyline_smash 0.1.0 into /workspace/builds/worker-43/source
[INFO] validating manifest of crates.io crate skyline_smash 0.1.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate skyline_smash 0.1.0
[INFO] finished tweaking crates.io crate skyline_smash 0.1.0
[INFO] tweaked toml for crates.io crate skyline_smash 0.1.0 written to /workspace/builds/worker-43/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lua_bind_hash v1.0.1
[INFO] [stderr]   Downloaded compile-time-lua-bind-hash v1.1.1
[INFO] [stderr]   Downloaded libc-nnsdk v0.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 54edfd0f90347ab248fe2d289b20228c061b4e96dc50600f37d548873638e2c4
[INFO] running `Command { std: "docker" "start" "-a" "54edfd0f90347ab248fe2d289b20228c061b4e96dc50600f37d548873638e2c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "54edfd0f90347ab248fe2d289b20228c061b4e96dc50600f37d548873638e2c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54edfd0f90347ab248fe2d289b20228c061b4e96dc50600f37d548873638e2c4", kill_on_drop: false }`
[INFO] [stdout] 54edfd0f90347ab248fe2d289b20228c061b4e96dc50600f37d548873638e2c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c1b6d3028e4b86a4ee5a815e724db0b35821a4b52701c9f417c80fadf66bd15b
[INFO] running `Command { std: "docker" "start" "-a" "c1b6d3028e4b86a4ee5a815e724db0b35821a4b52701c9f417c80fadf66bd15b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.30
[INFO] [stderr]    Compiling syn v1.0.80
[INFO] [stderr]    Compiling lua_bind_hash v1.0.1
[INFO] [stderr]     Checking libc-nnsdk v0.0.1
[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/libc-nnsdk-0.0.1/src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(untagged_unions)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `libc-nnsdk` due to 2 previous errors
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "c1b6d3028e4b86a4ee5a815e724db0b35821a4b52701c9f417c80fadf66bd15b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1b6d3028e4b86a4ee5a815e724db0b35821a4b52701c9f417c80fadf66bd15b", kill_on_drop: false }`
[INFO] [stdout] c1b6d3028e4b86a4ee5a815e724db0b35821a4b52701c9f417c80fadf66bd15b
