[INFO] fetching crate cargo-nav 1.2.0...
[INFO] checking cargo-nav-1.2.0 against master#158f00a1c5175648af6f6099b075f78d1d014a28 for pr-121251
[INFO] extracting crate cargo-nav 1.2.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate cargo-nav 1.2.0 on toolchain 158f00a1c5175648af6f6099b075f78d1d014a28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cargo-nav 1.2.0
[INFO] finished tweaking crates.io crate cargo-nav 1.2.0
[INFO] tweaked toml for crates.io crate cargo-nav 1.2.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate cargo-nav 1.2.0 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" "+158f00a1c5175648af6f6099b075f78d1d014a28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded futures-sink v0.3.27
[INFO] [stderr]   Downloaded rustix v0.36.9
[INFO] [stderr]   Downloaded futures-task v0.3.27
[INFO] [stderr]   Downloaded unicode-bidi v0.3.11
[INFO] [stderr]   Downloaded hyper v0.14.25
[INFO] [stderr]   Downloaded fern v0.6.1
[INFO] [stderr]   Downloaded difference v2.0.0
[INFO] [stderr]   Downloaded io-lifetimes v1.0.6
[INFO] [stderr]   Downloaded tempfile v3.4.0
[INFO] [stderr]   Downloaded colored v1.9.3
[INFO] [stderr]   Downloaded mockito v0.25.3
[INFO] [stderr]   Downloaded futures-channel v0.3.27
[INFO] [stderr]   Downloaded serde_urlencoded v0.6.1
[INFO] [stderr]   Downloaded tokio v1.26.0
[INFO] [stderr]   Downloaded h2 v0.3.16
[INFO] [stderr]   Downloaded futures-util v0.3.27
[INFO] [stderr]   Downloaded webbrowser v0.8.7
[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" "+158f00a1c5175648af6f6099b075f78d1d014a28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 32b26ae52a96a7506ced146f681b3d0e4c9b03e0fca04147083da9e6a060acb9
[INFO] running `Command { std: "docker" "start" "-a" "32b26ae52a96a7506ced146f681b3d0e4c9b03e0fca04147083da9e6a060acb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "32b26ae52a96a7506ced146f681b3d0e4c9b03e0fca04147083da9e6a060acb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32b26ae52a96a7506ced146f681b3d0e4c9b03e0fca04147083da9e6a060acb9", kill_on_drop: false }`
[INFO] [stdout] 32b26ae52a96a7506ced146f681b3d0e4c9b03e0fca04147083da9e6a060acb9
[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" "+158f00a1c5175648af6f6099b075f78d1d014a28" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a700861c447ff31651c437417f511b30b0962d9d64ae60346f8b845730ce0717
[INFO] running `Command { std: "docker" "start" "-a" "a700861c447ff31651c437417f511b30b0962d9d64ae60346f8b845730ce0717", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.140
[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]     Checking once_cell v1.17.1
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling futures-core v0.3.27
[INFO] [stderr]     Checking bytes v1.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.156
[INFO] [stderr]    Compiling tokio v1.26.0
[INFO] [stderr]    Compiling serde v1.0.156
[INFO] [stderr]     Checking percent-encoding v2.2.0
[INFO] [stderr]    Compiling futures-task v0.3.27
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]     Checking unicode-bidi v0.3.11
[INFO] [stderr]     Checking form_urlencoded v1.1.0
[INFO] [stderr]     Checking tracing-core v0.1.30
[INFO] [stderr]    Compiling openssl v0.10.45
[INFO] [stderr]    Compiling futures-util v0.3.27
[INFO] [stderr]     Checking futures-io v0.3.27
[INFO] [stderr]    Compiling futures-channel v0.3.27
[INFO] [stderr]    Compiling serde_json v1.0.94
[INFO] [stderr]     Checking futures-sink v0.3.27
[INFO] [stderr]     Checking try-lock v0.2.4
[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]    Compiling unicode-segmentation v1.10.1
[INFO] [stderr]     Checking http v0.2.9
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]     Checking httpdate v1.0.2
[INFO] [stderr]    Compiling anyhow v1.0.69
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking aho-corasick v0.7.20
[INFO] [stderr]     Checking idna v0.3.0
[INFO] [stderr]     Checking encoding_rs v0.8.32
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking ipnet v2.7.1
[INFO] [stderr]     Checking regex-syntax v0.6.28
[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" "a700861c447ff31651c437417f511b30b0962d9d64ae60346f8b845730ce0717", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a700861c447ff31651c437417f511b30b0962d9d64ae60346f8b845730ce0717", kill_on_drop: false }`
[INFO] [stdout] a700861c447ff31651c437417f511b30b0962d9d64ae60346f8b845730ce0717
