[INFO] fetching crate cxx-build 1.0.104...
[INFO] checking cxx-build-1.0.104 against try#8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f for pr-114559
[INFO] extracting crate cxx-build 1.0.104 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate cxx-build 1.0.104 on toolchain 8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cxx-build 1.0.104
[INFO] finished tweaking crates.io crate cxx-build 1.0.104
[INFO] tweaked toml for crates.io crate cxx-build 1.0.104 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:5c16f4e6c37141f9fef0bc86f7a492d732943053e42aab8461035881e3f53823" "/opt/rustwide/cargo-home/bin/cargo" "+8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c6f723e733ed97e2592c79e0c98f1f9f06fb80d747e39ec40e11e409eefee6b3
[INFO] running `Command { std: "docker" "start" "-a" "c6f723e733ed97e2592c79e0c98f1f9f06fb80d747e39ec40e11e409eefee6b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c6f723e733ed97e2592c79e0c98f1f9f06fb80d747e39ec40e11e409eefee6b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6f723e733ed97e2592c79e0c98f1f9f06fb80d747e39ec40e11e409eefee6b3", kill_on_drop: false }`
[INFO] [stdout] c6f723e733ed97e2592c79e0c98f1f9f06fb80d747e39ec40e11e409eefee6b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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@sha256:5c16f4e6c37141f9fef0bc86f7a492d732943053e42aab8461035881e3f53823" "/opt/rustwide/cargo-home/bin/cargo" "+8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 62349119b11a71b84120bea497773fe0059fba3669a0aebb9b2bb9c7fc03de30
[INFO] running `Command { std: "docker" "start" "-a" "62349119b11a71b84120bea497773fe0059fba3669a0aebb9b2bb9c7fc03de30", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling scratch v1.0.7
[INFO] [stderr]    Compiling cxxbridge-flags v1.0.104
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]     Checking pkg-config v0.3.27
[INFO] [stderr]     Checking cc v1.0.82
[INFO] [stderr]    Compiling link-cplusplus v1.0.9
[INFO] [stderr]    Compiling cxx v1.0.104
[INFO] [stderr]     Checking codespan-reporting v0.11.1
[INFO] [stderr]    Compiling quote v1.0.32
[INFO] [stderr]    Compiling syn v2.0.28
[INFO] [stderr]     Checking cxx-gen v0.7.104
[INFO] [stderr]     Checking cxx-build v1.0.104 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0492]: constants cannot refer to interior mutable data
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/cxx-gen-0.7.104/src/syntax/namespace.rs:72:34
[INFO] [stdout]    |
[INFO] [stdout] 72 |         const ROOT: &Namespace = &Namespace::ROOT;
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^ this borrow of an interior mutable value may end up in the final value
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0492]: constants cannot refer to interior mutable data
[INFO] [stdout]   --> src/syntax/namespace.rs:72:34
[INFO] [stdout]    |
[INFO] [stdout] 72 |         const ROOT: &Namespace = &Namespace::ROOT;
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^ this borrow of an interior mutable value may end up in the final value
[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 E0492`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cxx-gen` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0492`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cxx-build` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "62349119b11a71b84120bea497773fe0059fba3669a0aebb9b2bb9c7fc03de30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62349119b11a71b84120bea497773fe0059fba3669a0aebb9b2bb9c7fc03de30", kill_on_drop: false }`
[INFO] [stdout] 62349119b11a71b84120bea497773fe0059fba3669a0aebb9b2bb9c7fc03de30
