[INFO] fetching crate proc-hash 0.1.2...
[INFO] checking proc-hash-0.1.2 against try#8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f for pr-114559
[INFO] extracting crate proc-hash 0.1.2 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate proc-hash 0.1.2 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 proc-hash 0.1.2
[INFO] finished tweaking crates.io crate proc-hash 0.1.2
[INFO] tweaked toml for crates.io crate proc-hash 0.1.2 written to /workspace/builds/worker-0-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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] e9539c1e3fc231a493156ae35797130503f24d8352f8a7482b28a905d7235c39
[INFO] running `Command { std: "docker" "start" "-a" "e9539c1e3fc231a493156ae35797130503f24d8352f8a7482b28a905d7235c39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e9539c1e3fc231a493156ae35797130503f24d8352f8a7482b28a905d7235c39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9539c1e3fc231a493156ae35797130503f24d8352f8a7482b28a905d7235c39", kill_on_drop: false }`
[INFO] [stdout] e9539c1e3fc231a493156ae35797130503f24d8352f8a7482b28a905d7235c39
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 21f3782898a3812fc0963cf849dfc5e4a77cddc9145059215b73930206afad57
[INFO] running `Command { std: "docker" "start" "-a" "21f3782898a3812fc0963cf849dfc5e4a77cddc9145059215b73930206afad57", kill_on_drop: false }`
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling hashbrown v0.14.0
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling winnow v0.5.4
[INFO] [stderr]    Compiling regex-syntax v0.7.4
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]     Checking subtle v2.5.0
[INFO] [stderr]    Compiling termcolor v1.2.0
[INFO] [stderr]    Compiling serde v1.0.183
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling common-path v1.0.0
[INFO] [stderr]    Compiling syn v2.0.28
[INFO] [stderr]     Checking keccak v0.1.4
[INFO] [stderr]    Compiling md5 v0.7.0
[INFO] [stderr]    Compiling walkdir v2.3.3
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling aho-corasick v1.0.2
[INFO] [stderr]    Compiling indexmap v2.0.0
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking whirlpool v0.10.4
[INFO] [stderr]     Checking blake2 v0.10.6
[INFO] [stderr]     Checking sha3 v0.10.8
[INFO] [stderr]    Compiling regex-automata v0.3.6
[INFO] [stderr]    Compiling derive-syn-parse v0.1.5
[INFO] [stderr]    Compiling toml_datetime v0.6.3
[INFO] [stderr]    Compiling serde_spanned v0.6.3
[INFO] [stderr]    Compiling toml_edit v0.19.14
[INFO] [stderr]    Compiling regex v1.9.3
[INFO] [stderr]    Compiling toml v0.7.6
[INFO] [stderr]    Compiling docify_macros v0.2.1
[INFO] [stdout] error[E0492]: constants cannot refer to interior mutable data
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/docify_macros-0.2.1/src/lib.rs:160:36
[INFO] [stdout]     |
[INFO] [stdout] 160 |     const EMPTY: &Vec<Attribute> = &Vec::new();
[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 `docify_macros` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "21f3782898a3812fc0963cf849dfc5e4a77cddc9145059215b73930206afad57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21f3782898a3812fc0963cf849dfc5e4a77cddc9145059215b73930206afad57", kill_on_drop: false }`
[INFO] [stdout] 21f3782898a3812fc0963cf849dfc5e4a77cddc9145059215b73930206afad57
