[INFO] fetching crate flipper0-sys 0.2.14...
[INFO] checking flipper0-sys-0.2.14 against master#80399064afa4a2cd153f30d02c25f7ea0383ed65 for opaque-soundness-fix
[INFO] extracting crate flipper0-sys 0.2.14 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate flipper0-sys 0.2.14 on toolchain 80399064afa4a2cd153f30d02c25f7ea0383ed65
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-0-tc1/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-0-tc1/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate flipper0-sys 0.2.14
[INFO] removed 1 missing examples
[INFO] finished tweaking crates.io crate flipper0-sys 0.2.14
[INFO] tweaked toml for crates.io crate flipper0-sys 0.2.14 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate flipper0-sys 0.2.14 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fam v0.1.5
[INFO] [stderr]   Downloaded rustygit v0.4.4
[INFO] [stderr]   Downloaded flipper0-fam-build v0.1.6
[INFO] [stderr]   Downloaded const_format_proc_macros v0.2.29
[INFO] [stderr]   Downloaded pest_derive v2.4.1
[INFO] [stderr]   Downloaded flipper0-macro v0.1.3
[INFO] [stderr]   Downloaded flipper0-build-cfg v0.1.3
[INFO] [stderr]   Downloaded handlebars v4.3.5
[INFO] [stderr]   Downloaded clang-sys v1.4.0
[INFO] [stderr]   Downloaded pest v2.4.1
[INFO] [stderr]   Downloaded pest_meta v2.4.1
[INFO] [stderr]   Downloaded pest_generator v2.4.1
[INFO] [stderr]   Downloaded crate-metadata v0.1.0
[INFO] [stderr]   Downloaded const_format v0.2.30
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ca7ede3593d80aff5e205b68652a842d02d952ba1147548d000a36a79510172d
[INFO] running `Command { std: "docker" "start" "-a" "ca7ede3593d80aff5e205b68652a842d02d952ba1147548d000a36a79510172d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca7ede3593d80aff5e205b68652a842d02d952ba1147548d000a36a79510172d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca7ede3593d80aff5e205b68652a842d02d952ba1147548d000a36a79510172d", kill_on_drop: false }`
[INFO] [stdout] ca7ede3593d80aff5e205b68652a842d02d952ba1147548d000a36a79510172d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6178dbdbad741953941088352008bb507af71f5c61f60ec6a21d431e2da3d69b
[INFO] running `Command { std: "docker" "start" "-a" "6178dbdbad741953941088352008bb507af71f5c61f60ec6a21d431e2da3d69b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling syn v1.0.103
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling thiserror v1.0.37
[INFO] [stderr]    Compiling serde_derive v1.0.147
[INFO] [stderr]    Compiling serde v1.0.147
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling ryu v1.0.11
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling ucd-trie v0.1.5
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling serde_json v1.0.87
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling once_cell v1.16.0
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling itoa v1.0.4
[INFO] [stderr]    Compiling regex-syntax v0.6.28
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling either v1.8.0
[INFO] [stderr]    Compiling arrayvec v0.7.2
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]    Compiling libloading v0.7.3
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling bindgen v0.61.0
[INFO] [stderr]    Compiling joinery v2.1.0
[INFO] [stderr]    Compiling semver v1.0.14
[INFO] [stderr]    Compiling indent_write v2.2.0
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.47/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling brownstone v3.0.0
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling shlex v1.1.0
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]    Compiling clang-sys v1.4.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling flipper0-build-cfg v0.1.3
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "6178dbdbad741953941088352008bb507af71f5c61f60ec6a21d431e2da3d69b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6178dbdbad741953941088352008bb507af71f5c61f60ec6a21d431e2da3d69b", kill_on_drop: false }`
[INFO] [stdout] 6178dbdbad741953941088352008bb507af71f5c61f60ec6a21d431e2da3d69b
