[INFO] fetching crate fif 0.7.0...
[INFO] checking fif-0.7.0 against master#80399064afa4a2cd153f30d02c25f7ea0383ed65 for opaque-soundness-fix
[INFO] extracting crate fif 0.7.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate fif 0.7.0 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] started tweaking crates.io crate fif 0.7.0
[INFO] finished tweaking crates.io crate fif 0.7.0
[INFO] tweaked toml for crates.io crate fif 0.7.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate fif 0.7.0 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 thiserror v1.0.39
[INFO] [stderr]   Downloaded tempfile v3.4.0
[INFO] [stderr]   Downloaded serde v1.0.156
[INFO] [stderr]   Downloaded thiserror-impl v1.0.39
[INFO] [stderr]   Downloaded predicates-core v1.0.5
[INFO] [stderr]   Downloaded snailquote v0.3.1
[INFO] [stderr]   Downloaded terminal_size v0.2.5
[INFO] [stderr]   Downloaded infer v0.13.0
[INFO] [stderr]   Downloaded predicates-tree v1.0.7
[INFO] [stderr]   Downloaded assert_cmd v2.0.8
[INFO] [stderr]   Downloaded clap_derive v4.1.8
[INFO] [stderr]   Downloaded clap_lex v0.3.2
[INFO] [stderr]   Downloaded uuid v1.3.0
[INFO] [stderr]   Downloaded clap v4.1.8
[INFO] [stderr]   Downloaded rustix v0.36.9
[INFO] [stderr]   Downloaded bstr v1.3.0
[INFO] [stderr]   Downloaded cfb v0.7.3
[INFO] [stderr]   Downloaded serde_derive v1.0.156
[INFO] [stderr]   Downloaded xdg-mime v0.3.3
[INFO] [stderr]   Downloaded new_mime_guess v4.0.1
[INFO] [stderr]   Downloaded io-lifetimes v1.0.6
[INFO] [stderr]   Downloaded is-terminal v0.4.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 7eae2c616ff7af288461c9332eb5532dfa14bd258508bfb7611ca4e3df2fb669
[INFO] running `Command { std: "docker" "start" "-a" "7eae2c616ff7af288461c9332eb5532dfa14bd258508bfb7611ca4e3df2fb669", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7eae2c616ff7af288461c9332eb5532dfa14bd258508bfb7611ca4e3df2fb669", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7eae2c616ff7af288461c9332eb5532dfa14bd258508bfb7611ca4e3df2fb669", kill_on_drop: false }`
[INFO] [stdout] 7eae2c616ff7af288461c9332eb5532dfa14bd258508bfb7611ca4e3df2fb669
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] d8f3b390e4e4c4e6e0f67d43683fcf42b4ef84f89f79d1858ee32684090f3f7f
[INFO] running `Command { std: "docker" "start" "-a" "d8f3b390e4e4c4e6e0f67d43683fcf42b4ef84f89f79d1858ee32684090f3f7f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.52
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling io-lifetimes v1.0.6
[INFO] [stderr]    Compiling rustix v0.36.9
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.52/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]     Checking linux-raw-sys v0.1.4
[INFO] [stderr]    Compiling serde_derive v1.0.156
[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" "d8f3b390e4e4c4e6e0f67d43683fcf42b4ef84f89f79d1858ee32684090f3f7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8f3b390e4e4c4e6e0f67d43683fcf42b4ef84f89f79d1858ee32684090f3f7f", kill_on_drop: false }`
[INFO] [stdout] d8f3b390e4e4c4e6e0f67d43683fcf42b4ef84f89f79d1858ee32684090f3f7f
