[INFO] fetching crate teapot_tools 0.4.2...
[INFO] checking teapot_tools-0.4.2 against master#6162f6f12339aa81fe16b8a64644ead497e411b2 for pr-113240
[INFO] extracting crate teapot_tools 0.4.2 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate teapot_tools 0.4.2 on toolchain 6162f6f12339aa81fe16b8a64644ead497e411b2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6162f6f12339aa81fe16b8a64644ead497e411b2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate teapot_tools 0.4.2
[INFO] finished tweaking crates.io crate teapot_tools 0.4.2
[INFO] tweaked toml for crates.io crate teapot_tools 0.4.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate teapot_tools 0.4.2 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" "+6162f6f12339aa81fe16b8a64644ead497e411b2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pyo3-macros v0.18.1
[INFO] [stderr]   Downloaded path-absolutize v3.0.14
[INFO] [stderr]   Downloaded target-lexicon v0.12.6
[INFO] [stderr]   Downloaded pyo3-build-config v0.18.1
[INFO] [stderr]   Downloaded linya v0.3.0
[INFO] [stderr]   Downloaded path-dedot v3.0.18
[INFO] [stderr]   Downloaded smart-default v0.6.0
[INFO] [stderr]   Downloaded is-terminal v0.4.3
[INFO] [stderr]   Downloaded pyo3-ffi v0.18.1
[INFO] [stderr]   Downloaded pyo3-macros-backend v0.18.1
[INFO] [stderr]   Downloaded zip v0.6.4
[INFO] [stderr]   Downloaded async-compression v0.3.15
[INFO] [stderr]   Downloaded pyo3 v0.18.1
[INFO] [stderr]   Downloaded clap v4.1.6
[INFO] [stderr]   Downloaded bstr v1.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+6162f6f12339aa81fe16b8a64644ead497e411b2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b9bf113344f05670b74a3a1870f97ca1dab44a3bdfdc94be81aaee4b0f1935e7
[INFO] running `Command { std: "docker" "start" "-a" "b9bf113344f05670b74a3a1870f97ca1dab44a3bdfdc94be81aaee4b0f1935e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b9bf113344f05670b74a3a1870f97ca1dab44a3bdfdc94be81aaee4b0f1935e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9bf113344f05670b74a3a1870f97ca1dab44a3bdfdc94be81aaee4b0f1935e7", kill_on_drop: false }`
[INFO] [stdout] b9bf113344f05670b74a3a1870f97ca1dab44a3bdfdc94be81aaee4b0f1935e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+6162f6f12339aa81fe16b8a64644ead497e411b2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cc606faa1efd50523648c28b84d010ed2ab9911500987cacfb52d0cb248297af
[INFO] running `Command { std: "docker" "start" "-a" "cc606faa1efd50523648c28b84d010ed2ab9911500987cacfb52d0cb248297af", kill_on_drop: false }`
[INFO] [stderr]    Compiling target-lexicon v0.12.6
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling anyhow v1.0.69
[INFO] [stderr]    Compiling openssl-sys v0.9.80
[INFO] [stderr]    Compiling tokio v1.25.0
[INFO] [stderr]    Compiling futures-task v0.3.26
[INFO] [stderr]    Compiling futures-channel v0.3.26
[INFO] [stderr]    Compiling either v1.8.1
[INFO] [stderr]     Checking num_cpus v1.15.0
[INFO] [stderr]     Checking mio v0.8.6
[INFO] [stderr]     Checking socket2 v0.4.7
[INFO] [stderr]    Compiling futures-util v0.3.26
[INFO] [stderr]     Checking futures-io v0.3.26
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]     Checking http v0.2.8
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.51/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 prettyplease v0.1.23
[INFO] [stderr]    Compiling io-lifetimes v1.0.5
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stdout] error: aborting due to 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" "cc606faa1efd50523648c28b84d010ed2ab9911500987cacfb52d0cb248297af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc606faa1efd50523648c28b84d010ed2ab9911500987cacfb52d0cb248297af", kill_on_drop: false }`
[INFO] [stdout] cc606faa1efd50523648c28b84d010ed2ab9911500987cacfb52d0cb248297af