[INFO] cloning repository https://github.com/Hero-Workshop-Apps/hero_workshop_core
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Hero-Workshop-Apps/hero_workshop_core" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHero-Workshop-Apps%2Fhero_workshop_core", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHero-Workshop-Apps%2Fhero_workshop_core'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a8d6eabf27c5136264eeabfb3349b7d1c282201b
[INFO] testing Hero-Workshop-Apps/hero_workshop_core against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHero-Workshop-Apps%2Fhero_workshop_core" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Hero-Workshop-Apps/hero_workshop_core on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Hero-Workshop-Apps/hero_workshop_core
[INFO] finished tweaking git repo https://github.com/Hero-Workshop-Apps/hero_workshop_core
[INFO] tweaked toml for git repo https://github.com/Hero-Workshop-Apps/hero_workshop_core written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/Hero-Workshop-Apps/hero_workshop_core already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 70df64895b60826f454a7d2e602b712cecece116014a9b4e6a6af0ca8d07f8b2
[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" "70df64895b60826f454a7d2e602b712cecece116014a9b4e6a6af0ca8d07f8b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "70df64895b60826f454a7d2e602b712cecece116014a9b4e6a6af0ca8d07f8b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70df64895b60826f454a7d2e602b712cecece116014a9b4e6a6af0ca8d07f8b2", kill_on_drop: false }`
[INFO] [stdout] 70df64895b60826f454a7d2e602b712cecece116014a9b4e6a6af0ca8d07f8b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f4f245ee6d149d985977a78b52075816f70830bfca516b1071b0e5c1f30ad076
[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" "f4f245ee6d149d985977a78b52075816f70830bfca516b1071b0e5c1f30ad076", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]    Compiling syn v1.0.56
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling protobuf v2.18.1
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling scratch v1.0.0
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling cxxbridge-flags v1.0.24
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling codespan-reporting v0.9.5
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling bstr v0.2.14
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling link-cplusplus v1.0.4
[INFO] [stderr]    Compiling rlua v0.17.0
[INFO] [stderr]    Compiling cxx v1.0.24
[INFO] [stderr]    Compiling cxx-build v1.0.24
[INFO] [stderr]    Compiling cxxbridge-macro v1.0.24
[INFO] [stderr]    Compiling rlua_serde v0.4.0
[INFO] [stderr]    Compiling protobuf-codegen v2.18.1
[INFO] [stderr]    Compiling protobuf-codegen-pure v2.18.1
[INFO] [stderr]    Compiling hero_workshop_core v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: custom inner attributes are unstable
[INFO] [stdout]  --> /opt/rustwide/target/debug/build/hero_workshop_core-f7944e3df27210f1/out/generated_protobuf_code/message.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | #![rustfmt::skip]
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[deny(soft_unstable)]` on by default
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = note: for more information, see issue #64266 <https://github.com/rust-lang/rust/issues/64266>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hero_workshop_core` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "f4f245ee6d149d985977a78b52075816f70830bfca516b1071b0e5c1f30ad076", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4f245ee6d149d985977a78b52075816f70830bfca516b1071b0e5c1f30ad076", kill_on_drop: false }`
[INFO] [stdout] f4f245ee6d149d985977a78b52075816f70830bfca516b1071b0e5c1f30ad076