[INFO] cloning repository https://github.com/SilasPC/rustcraft
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SilasPC/rustcraft" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSilasPC%2Frustcraft", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSilasPC%2Frustcraft'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b907aab8f03935a0d97bbc4eadc9eb2d9cdfec4f
[INFO] checking SilasPC/rustcraft against 1.55.0 for beta-1.56-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSilasPC%2Frustcraft" "/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/SilasPC/rustcraft 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 git repo https://github.com/SilasPC/rustcraft
[INFO] finished tweaking git repo https://github.com/SilasPC/rustcraft
[INFO] tweaked toml for git repo https://github.com/SilasPC/rustcraft written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/SilasPC/rustcraft already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-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" "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] ae3b23a70a1e07d0f073b3d3bc378b16339d1d613d2d2c16b4e039071e5ac412
[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" "ae3b23a70a1e07d0f073b3d3bc378b16339d1d613d2d2c16b4e039071e5ac412", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae3b23a70a1e07d0f073b3d3bc378b16339d1d613d2d2c16b4e039071e5ac412", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae3b23a70a1e07d0f073b3d3bc378b16339d1d613d2d2c16b4e039071e5ac412", kill_on_drop: false }`
[INFO] [stdout] ae3b23a70a1e07d0f073b3d3bc378b16339d1d613d2d2c16b4e039071e5ac412
[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" "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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 92cd4c43376ea76de6164ba2d475ed3b30c1b325951606342a7f6399a6dd0ada
[INFO] running `Command { std: "docker" "start" "-a" "92cd4c43376ea76de6164ba2d475ed3b30c1b325951606342a7f6399a6dd0ada", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling version-compare v0.0.10
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling sdl2 v0.34.5
[INFO] [stderr]    Compiling cgmath v0.18.0
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking fixedbitset v0.4.0
[INFO] [stderr]     Checking bytemuck v1.7.0
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking scanlex v0.1.4
[INFO] [stderr]    Compiling warn v0.1.0 (/opt/rustwide/workdir/warn)
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> warn/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_diagnostic)]
[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]    Compiling cmake v0.1.45
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr] error: could not compile `warn` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "92cd4c43376ea76de6164ba2d475ed3b30c1b325951606342a7f6399a6dd0ada", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92cd4c43376ea76de6164ba2d475ed3b30c1b325951606342a7f6399a6dd0ada", kill_on_drop: false }`
[INFO] [stdout] 92cd4c43376ea76de6164ba2d475ed3b30c1b325951606342a7f6399a6dd0ada
