[INFO] fetching crate burble 0.2.2...
[INFO] checking burble-0.2.2 against master#8c32e313cccf7df531e2d49ffb8227bb92304aee for pr-145608-1
[INFO] extracting crate burble 0.2.2 into /workspace/builds/worker-6-tc1/source
[INFO] removed /workspace/builds/worker-6-tc1/source/.cargo/config.toml
[INFO] started tweaking crates.io crate burble 0.2.2
[INFO] finished tweaking crates.io crate burble 0.2.2
[INFO] tweaked toml for crates.io crate burble 0.2.2 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate burble 0.2.2 on toolchain 8c32e313cccf7df531e2d49ffb8227bb92304aee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate burble 0.2.2 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" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded structbuf v0.3.4
[INFO] [stderr]   Downloaded sscanf v0.4.0
[INFO] [stderr]   Downloaded enum-iterator v1.4.0
[INFO] [stderr]   Downloaded const_format_proc_macros v0.2.29
[INFO] [stderr]   Downloaded sscanf_macro v0.4.0
[INFO] [stderr]   Downloaded dbl v0.3.2
[INFO] [stderr]   Downloaded rusb v0.9.1
[INFO] [stderr]   Downloaded enum-iterator-derive v1.2.0
[INFO] [stderr]   Downloaded ecdsa v0.16.1
[INFO] [stderr]   Downloaded bitflags v2.0.1
[INFO] [stderr]   Downloaded burble-const v0.2.2
[INFO] [stderr]   Downloaded elliptic-curve v0.13.2
[INFO] [stderr]   Downloaded p256 v0.13.0
[INFO] [stderr]   Downloaded winnow v0.3.5
[INFO] [stderr]   Downloaded crypto-bigint v0.5.0
[INFO] [stderr]   Downloaded der v0.7.1
[INFO] [stderr]   Downloaded libusb1-sys v0.6.4
[INFO] [stderr]   Downloaded pkcs8 v0.10.1
[INFO] [stderr]   Downloaded blake3 v1.3.3
[INFO] [stderr]   Downloaded sec1 v0.7.1
[INFO] [stderr]   Downloaded primeorder v0.13.0
[INFO] [stderr]   Downloaded zeroize_derive v1.3.3
[INFO] [stderr]   Downloaded burble-crypto v0.2.2
[INFO] [stderr]   Downloaded constant_time_eq v0.2.4
[INFO] [stderr]   Downloaded spki v0.7.0
[INFO] [stderr]   Downloaded const_format v0.2.30
[INFO] [stderr]   Downloaded cmac v0.7.1
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5f33bcb50c48204d3327c05d1a91196186aab0e30969c8c75c8d7d099dca8421
[INFO] running `Command { std: "docker" "start" "-a" "5f33bcb50c48204d3327c05d1a91196186aab0e30969c8c75c8d7d099dca8421", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f33bcb50c48204d3327c05d1a91196186aab0e30969c8c75c8d7d099dca8421", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f33bcb50c48204d3327c05d1a91196186aab0e30969c8c75c8d7d099dca8421", kill_on_drop: false }`
[INFO] [stdout] 5f33bcb50c48204d3327c05d1a91196186aab0e30969c8c75c8d7d099dca8421
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 00b838fc8a9603cf0d1f299536b51ef379cd0df97b6f198e7e5a492fc2eff2dc
[INFO] running `Command { std: "docker" "start" "-a" "00b838fc8a9603cf0d1f299536b51ef379cd0df97b6f198e7e5a492fc2eff2dc", kill_on_drop: false }`
[INFO] [stderr]     Checking const-oid v0.9.2
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]     Checking base16ct v0.2.0
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling serde_derive v1.0.154
[INFO] [stderr]    Compiling winnow v0.3.5
[INFO] [stderr]    Compiling libusb1-sys v0.6.4
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]    Compiling serde v1.0.154
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]    Compiling io-lifetimes v1.0.6
[INFO] [stderr]    Compiling tokio v1.26.0
[INFO] [stderr]    Compiling rustix v0.36.9
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/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]     Checking mio v0.8.6
[INFO] [stderr]     Checking parking_lot_core v0.9.7
[INFO] [stderr]     Checking structbuf v0.3.4
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]    Compiling blake3 v1.3.3
[INFO] [stderr]    Compiling rusb v0.9.1
[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 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "00b838fc8a9603cf0d1f299536b51ef379cd0df97b6f198e7e5a492fc2eff2dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00b838fc8a9603cf0d1f299536b51ef379cd0df97b6f198e7e5a492fc2eff2dc", kill_on_drop: false }`
[INFO] [stdout] 00b838fc8a9603cf0d1f299536b51ef379cd0df97b6f198e7e5a492fc2eff2dc