[INFO] fetching crate flowcrafter 0.1.0...
[INFO] checking flowcrafter-0.1.0 against master#80399064afa4a2cd153f30d02c25f7ea0383ed65 for opaque-soundness-fix
[INFO] extracting crate flowcrafter 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate flowcrafter 0.1.0 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 flowcrafter 0.1.0
[INFO] finished tweaking crates.io crate flowcrafter 0.1.0
[INFO] tweaked toml for crates.io crate flowcrafter 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate flowcrafter 0.1.0 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 proc-macro2 v1.0.57
[INFO] [stderr]   Downloaded serde_derive v1.0.163
[INFO] [stderr]   Downloaded serde v1.0.163
[INFO] [stderr]   Downloaded typed-builder v0.14.0
[INFO] [stderr]   Downloaded quote v1.0.27
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.86
[INFO] [stderr]   Downloaded http-range-header v0.3.0
[INFO] [stderr]   Downloaded secrecy v0.8.0
[INFO] [stderr]   Downloaded rustls-native-certs v0.6.2
[INFO] [stderr]   Downloaded simple_asn1 v0.6.2
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.86
[INFO] [stderr]   Downloaded pem v1.1.1
[INFO] [stderr]   Downloaded clap_derive v4.3.0
[INFO] [stderr]   Downloaded mockito v1.0.2
[INFO] [stderr]   Downloaded hyper-rustls v0.24.0
[INFO] [stderr]   Downloaded clap v4.3.0
[INFO] [stderr]   Downloaded clap_builder v4.3.0
[INFO] [stderr]   Downloaded rustls v0.21.1
[INFO] [stderr]   Downloaded regex v1.8.1
[INFO] [stderr]   Downloaded web-sys v0.3.63
[INFO] [stderr]   Downloaded tokio v1.28.1
[INFO] [stderr]   Downloaded chrono v0.4.24
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.86
[INFO] [stderr]   Downloaded time v0.3.21
[INFO] [stderr]   Downloaded tower-http v0.4.0
[INFO] [stderr]   Downloaded octocrab v0.22.0
[INFO] [stderr]   Downloaded syn v2.0.16
[INFO] [stderr]   Downloaded arc-swap v1.6.0
[INFO] [stderr]   Downloaded security-framework v2.9.0
[INFO] [stderr]   Downloaded rustls-webpki v0.100.1
[INFO] [stderr]   Downloaded js-sys v0.3.63
[INFO] [stderr]   Downloaded bumpalo v3.12.2
[INFO] [stderr]   Downloaded jsonwebtoken v8.3.0
[INFO] [stderr]   Downloaded snafu v0.7.4
[INFO] [stderr]   Downloaded pin-project v1.1.0
[INFO] [stderr]   Downloaded unsafe-libyaml v0.2.8
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.86
[INFO] [stderr]   Downloaded indoc v2.0.1
[INFO] [stderr]   Downloaded tokio-rustls v0.24.0
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.86
[INFO] [stderr]   Downloaded snafu-derive v0.7.4
[INFO] [stderr]   Downloaded pin-project-internal v1.1.0
[INFO] [stderr]   Downloaded serde_path_to_error v0.1.11
[INFO] [stderr]   Downloaded serde_yaml v0.9.21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 7771852364f08c1c9437da726f91ef65a7ef47c1e07cdf94a920046b1e830758
[INFO] running `Command { std: "docker" "start" "-a" "7771852364f08c1c9437da726f91ef65a7ef47c1e07cdf94a920046b1e830758", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7771852364f08c1c9437da726f91ef65a7ef47c1e07cdf94a920046b1e830758", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7771852364f08c1c9437da726f91ef65a7ef47c1e07cdf94a920046b1e830758", kill_on_drop: false }`
[INFO] [stdout] 7771852364f08c1c9437da726f91ef65a7ef47c1e07cdf94a920046b1e830758
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 1a474cf199ea3b9a583a265c6bf0cff328580a013b0a4f69a4775301d825a3f8
[INFO] running `Command { std: "docker" "start" "-a" "1a474cf199ea3b9a583a265c6bf0cff328580a013b0a4f69a4775301d825a3f8", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.57
[INFO] [stderr]    Compiling quote v1.0.27
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling parking_lot_core v0.9.7
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]    Compiling tokio v1.28.1
[INFO] [stderr]    Compiling serde v1.0.163
[INFO] [stderr]     Checking tracing-core v0.1.31
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.57/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 http v0.2.9
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]    Compiling io-lifetimes v1.0.10
[INFO] [stderr]    Compiling rustix v0.37.19
[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" "1a474cf199ea3b9a583a265c6bf0cff328580a013b0a4f69a4775301d825a3f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a474cf199ea3b9a583a265c6bf0cff328580a013b0a4f69a4775301d825a3f8", kill_on_drop: false }`
[INFO] [stdout] 1a474cf199ea3b9a583a265c6bf0cff328580a013b0a4f69a4775301d825a3f8
