[INFO] cloning repository https://github.com/WilliamVenner/gm_microoptimisation_war_crime
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/WilliamVenner/gm_microoptimisation_war_crime" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWilliamVenner%2Fgm_microoptimisation_war_crime", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWilliamVenner%2Fgm_microoptimisation_war_crime'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 310507c03068e374a5cb97873dbdba0b4b70a6dc
[INFO] testing WilliamVenner/gm_microoptimisation_war_crime against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWilliamVenner%2Fgm_microoptimisation_war_crime" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/WilliamVenner/gm_microoptimisation_war_crime on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-13/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/WilliamVenner/gm_microoptimisation_war_crime
[INFO] finished tweaking git repo https://github.com/WilliamVenner/gm_microoptimisation_war_crime
[INFO] tweaked toml for git repo https://github.com/WilliamVenner/gm_microoptimisation_war_crime written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/WilliamVenner/gm_microoptimisation_war_crime already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c0ff02ef21d13bda5bbfc64a212bfd7137a3419059e2af04986926c51f04fa9c
[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" "c0ff02ef21d13bda5bbfc64a212bfd7137a3419059e2af04986926c51f04fa9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c0ff02ef21d13bda5bbfc64a212bfd7137a3419059e2af04986926c51f04fa9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0ff02ef21d13bda5bbfc64a212bfd7137a3419059e2af04986926c51f04fa9c", kill_on_drop: false }`
[INFO] [stdout] c0ff02ef21d13bda5bbfc64a212bfd7137a3419059e2af04986926c51f04fa9c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a4ac1aaea2d36877a73012bad1d7fe7d8eafaf617dc5d54b04e0f83acf06edde
[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" "a4ac1aaea2d36877a73012bad1d7fe7d8eafaf617dc5d54b04e0f83acf06edde", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.84
[INFO] [stderr]    Compiling scratch v1.0.1
[INFO] [stderr]    Compiling cxxbridge-flags v1.0.63
[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 generic-array v0.14.4
[INFO] [stderr]    Compiling codespan-reporting v0.11.1
[INFO] [stderr]    Compiling thread_local v1.1.3
[INFO] [stderr]    Compiling quote v1.0.14
[INFO] [stderr]    Compiling jobserver v0.1.24
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling region v2.2.0
[INFO] [stderr]    Compiling mmap-fixed v0.1.5
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling cstr v0.2.9
[INFO] [stderr]    Compiling link-cplusplus v1.0.6
[INFO] [stderr]    Compiling libudis86-sys v0.2.1
[INFO] [stderr]    Compiling cxx v1.0.63
[INFO] [stderr]    Compiling pcre2-sys v0.2.5
[INFO] [stderr]    Compiling pcre2 v0.2.3
[INFO] [stderr]    Compiling detour v0.8.1
[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]   = help: the feature `const_fn_trait_bound` has been stable since 1.61.0 and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling cxx-build v1.0.63
[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] running `Command { std: "docker" "inspect" "a4ac1aaea2d36877a73012bad1d7fe7d8eafaf617dc5d54b04e0f83acf06edde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4ac1aaea2d36877a73012bad1d7fe7d8eafaf617dc5d54b04e0f83acf06edde", kill_on_drop: false }`
[INFO] [stdout] a4ac1aaea2d36877a73012bad1d7fe7d8eafaf617dc5d54b04e0f83acf06edde