[INFO] fetching crate protos 0.1.30...
[INFO] testing protos-0.1.30 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate protos 0.1.30 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate protos 0.1.30
[INFO] finished tweaking crates.io crate protos 0.1.30
[INFO] tweaked toml for crates.io crate protos 0.1.30 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate protos 0.1.30 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate protos 0.1.30 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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sp-debug-derive v6.0.0
[INFO] [stderr]   Downloaded sp-std v6.0.0
[INFO] [stderr]   Downloaded ref-cast-impl v1.0.14
[INFO] [stderr]   Downloaded ss58-registry v1.38.0
[INFO] [stderr]   Downloaded sp-storage v11.0.0
[INFO] [stderr]   Downloaded parity-scale-codec v3.3.0
[INFO] [stderr]   Downloaded sp-core-hashing v6.0.0
[INFO] [stderr]   Downloaded wasmtime-types v1.0.2
[INFO] [stderr]   Downloaded array-bytes v4.2.0
[INFO] [stderr]   Downloaded scale-info v2.1.1
[INFO] [stderr]   Downloaded cxxbridge-macro v1.0.89
[INFO] [stderr]   Downloaded wasmtime-jit v1.0.2
[INFO] [stderr]   Downloaded bitvec v1.0.0
[INFO] [stderr]   Downloaded io-lifetimes v0.7.5
[INFO] [stderr]   Downloaded target-lexicon v0.12.5
[INFO] [stderr]   Downloaded scale-info-derive v2.1.1
[INFO] [stderr]   Downloaded sp-tracing v8.0.0
[INFO] [stderr]   Downloaded wasmi v0.13.2
[INFO] [stderr]   Downloaded cxx-build v1.0.89
[INFO] [stderr]   Downloaded wasmi_core v0.2.1
[INFO] [stderr]   Downloaded wasmtime-environ v1.0.2
[INFO] [stderr]   Downloaded wasmtime-runtime v1.0.2
[INFO] [stderr]   Downloaded cranelift-entity v0.88.2
[INFO] [stderr]   Downloaded sp-wasm-interface v9.0.0
[INFO] [stderr]   Downloaded sp-runtime-interface v12.0.0
[INFO] [stderr]   Downloaded sp-externalities v0.17.0
[INFO] [stderr]   Downloaded wasmtime v1.0.2
[INFO] [stderr]   Downloaded sp-runtime-interface-proc-macro v8.0.0
[INFO] [stderr]   Downloaded rustix v0.35.13
[INFO] [stderr]   Downloaded cxxbridge-flags v1.0.89
[INFO] [stderr]   Downloaded wasmi-validation v0.5.0
[INFO] [stderr]   Downloaded wasmtime-asm-macros v1.0.2
[INFO] [stderr]   Downloaded wasmtime-jit-debug v1.0.2
[INFO] [stderr]   Downloaded ref-cast v1.0.14
[INFO] [stderr]   Downloaded sp-core v14.0.0
[INFO] [stderr]   Downloaded cxx v1.0.89
[INFO] [stderr]   Downloaded wasmparser v0.89.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0f78ada326eb45881b7feacc8c97d5eea66087010ddbeaff6d45d307f4abc978
[INFO] running `Command { std: "docker" "start" "-a" "0f78ada326eb45881b7feacc8c97d5eea66087010ddbeaff6d45d307f4abc978", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0f78ada326eb45881b7feacc8c97d5eea66087010ddbeaff6d45d307f4abc978", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f78ada326eb45881b7feacc8c97d5eea66087010ddbeaff6d45d307f4abc978", kill_on_drop: false }`
[INFO] [stdout] 0f78ada326eb45881b7feacc8c97d5eea66087010ddbeaff6d45d307f4abc978
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] cd2dc6417d854c0bc195938058262d1a12ab377880caaefacaf9322dd8e9fd84
[INFO] running `Command { std: "docker" "start" "-a" "cd2dc6417d854c0bc195938058262d1a12ab377880caaefacaf9322dd8e9fd84", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.50
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]    Compiling tap v1.0.1
[INFO] [stderr]    Compiling serde_json v1.0.91
[INFO] [stderr]    Compiling byte-slice-cast v1.2.1
[INFO] [stderr]    Compiling arrayvec v0.7.2
[INFO] [stderr]    Compiling funty v2.0.0
[INFO] [stderr]    Compiling itoa v1.0.5
[INFO] [stderr]    Compiling ryu v1.0.12
[INFO] [stderr]    Compiling wyz v0.5.0
[INFO] [stderr]    Compiling bitvec v1.0.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.50/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] [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" "cd2dc6417d854c0bc195938058262d1a12ab377880caaefacaf9322dd8e9fd84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd2dc6417d854c0bc195938058262d1a12ab377880caaefacaf9322dd8e9fd84", kill_on_drop: false }`
[INFO] [stdout] cd2dc6417d854c0bc195938058262d1a12ab377880caaefacaf9322dd8e9fd84