[INFO] fetching crate solo2 0.2.2...
[INFO] testing solo2-0.2.2 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate solo2 0.2.2 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate solo2 0.2.2
[INFO] finished tweaking crates.io crate solo2 0.2.2
[INFO] tweaked toml for crates.io crate solo2 0.2.2 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate solo2 0.2.2 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 solo2 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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded time-core v0.1.0
[INFO] [stderr]   Downloaded displaydoc v0.2.3
[INFO] [stderr]   Downloaded time-macros v0.2.6
[INFO] [stderr]   Downloaded yasna v0.5.1
[INFO] [stderr]   Downloaded der-parser v8.1.0
[INFO] [stderr]   Downloaded cxxbridge-flags v1.0.86
[INFO] [stderr]   Downloaded data-encoding v2.3.3
[INFO] [stderr]   Downloaded enum-iterator-derive v1.1.0
[INFO] [stderr]   Downloaded pcsc v2.8.0
[INFO] [stderr]   Downloaded ctrlc v3.2.4
[INFO] [stderr]   Downloaded clap_derive v4.1.0
[INFO] [stderr]   Downloaded atomic-polyfill v0.1.11
[INFO] [stderr]   Downloaded dialoguer v0.10.3
[INFO] [stderr]   Downloaded io-lifetimes v1.0.4
[INFO] [stderr]   Downloaded anyhow v1.0.68
[INFO] [stderr]   Downloaded nix v0.26.1
[INFO] [stderr]   Downloaded cxx-build v1.0.86
[INFO] [stderr]   Downloaded pkcs11 v0.5.0
[INFO] [stderr]   Downloaded hex-literal v0.3.4
[INFO] [stderr]   Downloaded heapless v0.7.16
[INFO] [stderr]   Downloaded clap v4.1.1
[INFO] [stderr]   Downloaded combine v4.6.6
[INFO] [stderr]   Downloaded pem-rfc7468 v0.3.1
[INFO] [stderr]   Downloaded p256 v0.12.0
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[INFO] [stderr]   Downloaded flexiber v0.1.0
[INFO] [stderr]   Downloaded critical-section v1.1.1
[INFO] [stderr]   Downloaded cxxbridge-macro v1.0.86
[INFO] [stderr]   Downloaded clap-verbosity-flag v2.0.0
[INFO] [stderr]   Downloaded serde-big-array v0.4.1
[INFO] [stderr]   Downloaded cxx v1.0.86
[INFO] [stderr]   Downloaded chunked_transfer v1.4.1
[INFO] [stderr]   Downloaded ecdsa v0.15.0
[INFO] [stderr]   Downloaded pcsc-sys v1.2.0
[INFO] [stderr]   Downloaded iso7816 v0.1.1
[INFO] [stderr]   Downloaded scratch v1.0.3
[INFO] [stderr]   Downloaded clap_lex v0.3.1
[INFO] [stderr]   Downloaded clap_complete v4.1.0
[INFO] [stderr]   Downloaded enum-iterator v1.2.0
[INFO] [stderr]   Downloaded hidapi v2.1.1
[INFO] [stderr]   Downloaded pkcs1 v0.3.3
[INFO] [stderr]   Downloaded crypto-bigint v0.3.2
[INFO] [stderr]   Downloaded serde_yaml v0.9.16
[INFO] [stderr]   Downloaded uuid v1.2.2
[INFO] [stderr]   Downloaded primeorder v0.12.0
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[INFO] [stderr]   Downloaded ureq v2.6.2
[INFO] [stderr]   Downloaded raw-window-handle v0.5.0
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[INFO] [stderr]   Downloaded pkcs11-uri v0.1.3
[INFO] [stderr]   Downloaded rsa v0.6.1
[INFO] [stderr]   Downloaded unsafe-libyaml v0.2.5
[INFO] [stderr]   Downloaded signature v2.0.0
[INFO] [stderr]   Downloaded libm v0.2.6
[INFO] [stderr]   Downloaded asn1-rs v0.5.1
[INFO] [stderr]   Downloaded proc-macro2 v1.0.50
[INFO] [stderr]   Downloaded time v0.3.17
[INFO] [stderr]   Downloaded windows v0.43.0
[INFO] [stderr]   Downloaded lpc55 v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 91e73650e49a03a00249f15fbd4f2f9578300bfc44d174a980a65ca352958075
[INFO] running `Command { std: "docker" "start" "-a" "91e73650e49a03a00249f15fbd4f2f9578300bfc44d174a980a65ca352958075", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "91e73650e49a03a00249f15fbd4f2f9578300bfc44d174a980a65ca352958075", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91e73650e49a03a00249f15fbd4f2f9578300bfc44d174a980a65ca352958075", kill_on_drop: false }`
[INFO] [stdout] 91e73650e49a03a00249f15fbd4f2f9578300bfc44d174a980a65ca352958075
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 08fb92084137f6fe77506f945ad59d18b7cd59886a755c7ba15618425d8198a6
[INFO] running `Command { std: "docker" "start" "-a" "08fb92084137f6fe77506f945ad59d18b7cd59886a755c7ba15618425d8198a6", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.50
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling cc v1.0.78
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling io-lifetimes v1.0.4
[INFO] [stderr]    Compiling libm v0.2.6
[INFO] [stderr]    Compiling rustix v0.36.6
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling once_cell v1.17.0
[INFO] [stderr]    Compiling subtle v2.4.1
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling os_str_bytes v6.4.1
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling clap_lex v0.3.1
[INFO] [stderr]    Compiling untrusted v0.7.1
[INFO] [stderr]    Compiling termcolor v1.2.0
[INFO] [stderr]    Compiling semver v1.0.16
[INFO] [stderr]    Compiling base64ct v1.5.3
[INFO] [stderr]    Compiling time-core v0.1.0
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]    Compiling getrandom v0.2.8
[INFO] [stderr]    Compiling time-macros v0.2.6
[INFO] [stderr]    Compiling pem-rfc7468 v0.3.1
[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] [stderr]    Compiling const-oid v0.9.1
[INFO] [stderr]    Compiling zeroize v1.5.7
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling const-oid v0.7.1
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]    Compiling rand_core v0.6.4
[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" "08fb92084137f6fe77506f945ad59d18b7cd59886a755c7ba15618425d8198a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08fb92084137f6fe77506f945ad59d18b7cd59886a755c7ba15618425d8198a6", kill_on_drop: false }`
[INFO] [stdout] 08fb92084137f6fe77506f945ad59d18b7cd59886a755c7ba15618425d8198a6