[INFO] fetching crate gmod 5.0.0...
[INFO] checking gmod-5.0.0 against beta-2021-10-15 for beta-1.56-3
[INFO] extracting crate gmod 5.0.0 into /workspace/builds/worker-93/source
[INFO] validating manifest of crates.io crate gmod 5.0.0 on toolchain beta-2021-10-15
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gmod 5.0.0
[INFO] finished tweaking crates.io crate gmod 5.0.0
[INFO] tweaked toml for crates.io crate gmod 5.0.0 written to /workspace/builds/worker-93/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "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" "+beta-2021-10-15" "fetch" "--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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro-crate v1.1.0
[INFO] [stderr]   Downloaded cstr v0.2.9
[INFO] [stderr]   Downloaded mmap-fixed v0.1.5
[INFO] [stderr]   Downloaded libudis86-sys v0.2.1
[INFO] [stderr]   Downloaded detour v0.8.1
[INFO] [stderr]   Downloaded gmod-macros v0.1.0
[INFO] [stderr]   Downloaded fn_has_this v0.1.1
[INFO] [stderr]   Downloaded skidscan-macros v0.1.2
[INFO] [stderr]   Downloaded slice-pool v0.4.1
[INFO] [stderr]   Downloaded cfg_table v0.1.1
[INFO] [stderr]   Downloaded fn_abi v2.0.1
[INFO] [stderr]   Downloaded syn_squash v0.1.0
[INFO] [stderr]   Downloaded fn_type_alias v0.1.0
[INFO] [stderr]   Downloaded skidscan v0.1.3
[INFO] [stderr]   Downloaded null_fn v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/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" "+beta-2021-10-15" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 320414e3e423369282c9faea3b08c01762beaf286d0830de66692b62d8045e81
[INFO] running `Command { std: "docker" "start" "-a" "320414e3e423369282c9faea3b08c01762beaf286d0830de66692b62d8045e81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "320414e3e423369282c9faea3b08c01762beaf286d0830de66692b62d8045e81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "320414e3e423369282c9faea3b08c01762beaf286d0830de66692b62d8045e81", kill_on_drop: false }`
[INFO] [stdout] 320414e3e423369282c9faea3b08c01762beaf286d0830de66692b62d8045e81
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/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" "+beta-2021-10-15" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1fe00fc644b194bffffe66aa5df91ca288e232adc6d874031289a0ca1121aeb2
[INFO] running `Command { std: "docker" "start" "-a" "1fe00fc644b194bffffe66aa5df91ca288e232adc6d874031289a0ca1121aeb2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling typenum v1.14.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling syn_squash v0.1.0
[INFO] [stderr]     Checking slice-pool v0.4.1
[INFO] [stderr]     Checking cfg_table v0.1.1
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling libudis86-sys v0.2.1
[INFO] [stderr]     Checking libloading v0.7.1
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]     Checking mmap-fixed v0.1.5
[INFO] [stderr]    Compiling cstr v0.2.9
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling gmod-macros v0.1.0
[INFO] [stderr]    Compiling null_fn v0.1.1
[INFO] [stderr]    Compiling fn_type_alias v0.1.0
[INFO] [stderr]    Compiling ctor v0.1.21
[INFO] [stderr]     Checking region v2.2.0
[INFO] [stderr]    Compiling fn_abi v2.0.1
[INFO] [stderr]    Compiling fn_has_this v0.1.1
[INFO] [stderr]     Checking detour v0.8.1
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta 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 toml v0.5.8
[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" "1fe00fc644b194bffffe66aa5df91ca288e232adc6d874031289a0ca1121aeb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fe00fc644b194bffffe66aa5df91ca288e232adc6d874031289a0ca1121aeb2", kill_on_drop: false }`
[INFO] [stdout] 1fe00fc644b194bffffe66aa5df91ca288e232adc6d874031289a0ca1121aeb2
