[INFO] fetching crate gmod 15.0.0...
[INFO] testing gmod-15.0.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate gmod 15.0.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate gmod 15.0.0 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gmod 15.0.0
[INFO] finished tweaking crates.io crate gmod 15.0.0
[INFO] tweaked toml for crates.io crate gmod 15.0.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "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] 1a775775ba1170328300ea09312107ed8b6499fef2382c0a0daaa5dc49801f38
[INFO] running `Command { std: "docker" "start" "-a" "1a775775ba1170328300ea09312107ed8b6499fef2382c0a0daaa5dc49801f38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1a775775ba1170328300ea09312107ed8b6499fef2382c0a0daaa5dc49801f38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a775775ba1170328300ea09312107ed8b6499fef2382c0a0daaa5dc49801f38", kill_on_drop: false }`
[INFO] [stdout] 1a775775ba1170328300ea09312107ed8b6499fef2382c0a0daaa5dc49801f38
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 66b85086a30d0f9194af63ae28ff0ecd568aac08236af75c192685f410c16588
[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" "66b85086a30d0f9194af63ae28ff0ecd568aac08236af75c192685f410c16588", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn_squash v0.1.0
[INFO] [stderr]    Compiling slice-pool v0.4.1
[INFO] [stderr]    Compiling cfg_table v1.0.0
[INFO] [stderr]    Compiling libudis86-sys v0.2.1
[INFO] [stderr]    Compiling region v2.2.0
[INFO] [stderr]    Compiling mmap-fixed v0.1.5
[INFO] [stderr]    Compiling cstr v0.2.10
[INFO] [stderr]    Compiling fn_type_alias v0.1.0
[INFO] [stderr]    Compiling gmod-macros v2.0.1
[INFO] [stderr]    Compiling ctor v0.1.21
[INFO] [stderr]    Compiling null_fn v0.1.1
[INFO] [stderr]    Compiling proc-macro-crate v1.1.3
[INFO] [stderr]    Compiling fn_has_this v0.1.1
[INFO] [stderr]    Compiling fn_abi v2.0.1
[INFO] [stderr]    Compiling skidscan-macros v0.1.2
[INFO] [stderr]    Compiling detour v0.8.1
[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/detour-0.8.1/src/lib.rs:4:3
[INFO] [stdout]   |
[INFO] [stdout] 4 |   feature(const_fn_trait_bound, unboxed_closures, abi_thiscall)
[INFO] [stdout]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling skidscan v2.0.0
[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 `detour` 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" "66b85086a30d0f9194af63ae28ff0ecd568aac08236af75c192685f410c16588", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66b85086a30d0f9194af63ae28ff0ecd568aac08236af75c192685f410c16588", kill_on_drop: false }`
[INFO] [stdout] 66b85086a30d0f9194af63ae28ff0ecd568aac08236af75c192685f410c16588