[INFO] fetching crate angreal 2.4.2...
[INFO] testing angreal-2.4.2 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate angreal 2.4.2 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate angreal 2.4.2
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate angreal 2.4.2
[INFO] tweaked toml for crates.io crate angreal 2.4.2 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate angreal 2.4.2 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 angreal 2.4.2 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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded toml v0.6.0
[INFO] [stderr]   Downloaded pest_generator v2.5.5
[INFO] [stderr]   Downloaded version v3.0.0
[INFO] [stderr]   Downloaded globset v0.4.10
[INFO] [stderr]   Downloaded pest_meta v2.5.5
[INFO] [stderr]   Downloaded thread-id v4.0.0
[INFO] [stderr]   Downloaded chrono-tz-build v0.0.3
[INFO] [stderr]   Downloaded containers-api v0.7.0
[INFO] [stderr]   Downloaded darling_macro v0.14.3
[INFO] [stderr]   Downloaded pythonize v0.18.0
[INFO] [stderr]   Downloaded ignore v0.4.20
[INFO] [stderr]   Downloaded asynchronous-codec v0.6.1
[INFO] [stderr]   Downloaded darling_core v0.14.3
[INFO] [stderr]   Downloaded docker-api-stubs v0.4.0
[INFO] [stderr]   Downloaded docker-api v0.12.2
[INFO] [stderr]   Downloaded cxx-build v1.0.91
[INFO] [stderr]   Downloaded serde_with v2.2.0
[INFO] [stderr]   Downloaded tera v1.17.1
[INFO] [stderr]   Downloaded cxxbridge-macro v1.0.91
[INFO] [stderr]   Downloaded git-url-parse v0.4.4
[INFO] [stderr]   Downloaded log4rs v1.2.0
[INFO] [stderr]   Downloaded pest v2.5.5
[INFO] [stderr]   Downloaded cxx v1.0.91
[INFO] [stderr]   Downloaded darling v0.14.3
[INFO] [stderr]   Downloaded serde_with_macros v2.2.0
[INFO] [stderr]   Downloaded hyperlocal v0.8.0
[INFO] [stderr]   Downloaded docker-pyo3 v0.1.4
[INFO] [stderr]   Downloaded git2_credentials v0.11.0
[INFO] [stderr]   Downloaded pest_derive v2.5.5
[INFO] [stderr]   Downloaded cxxbridge-flags v1.0.91
[INFO] [stderr]   Downloaded bstr v1.3.0
[INFO] [stderr]   Downloaded libssh2-sys v0.2.23
[INFO] [stderr]   Downloaded chrono-tz v0.6.3
[INFO] [stderr]   Downloaded gimli v0.27.2
[INFO] [stderr]   Downloaded openssl-src v111.25.1+1.1.1t
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] b745c807535b37ce6f9c2d843fd17538cb4ee3f6c81bc79270e5693b6f50ae4b
[INFO] running `Command { std: "docker" "start" "-a" "b745c807535b37ce6f9c2d843fd17538cb4ee3f6c81bc79270e5693b6f50ae4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b745c807535b37ce6f9c2d843fd17538cb4ee3f6c81bc79270e5693b6f50ae4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b745c807535b37ce6f9c2d843fd17538cb4ee3f6c81bc79270e5693b6f50ae4b", kill_on_drop: false }`
[INFO] [stdout] b745c807535b37ce6f9c2d843fd17538cb4ee3f6c81bc79270e5693b6f50ae4b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 1253c2759d7cf5633267835830c6236f46b58e7e18d474bda841a4b7e97f23a8
[INFO] running `Command { std: "docker" "start" "-a" "1253c2759d7cf5633267835830c6236f46b58e7e18d474bda841a4b7e97f23a8", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling uncased v0.9.7
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]    Compiling target-lexicon v0.12.6
[INFO] [stderr]    Compiling tracing-core v0.1.30
[INFO] [stderr]    Compiling itoa v1.0.5
[INFO] [stderr]    Compiling bytes v1.4.0
[INFO] [stderr]    Compiling futures-core v0.3.26
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]    Compiling tokio v1.26.0
[INFO] [stderr]    Compiling futures-task v0.3.26
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling percent-encoding v2.2.0
[INFO] [stderr]    Compiling futures-util v0.3.26
[INFO] [stderr]    Compiling ryu v1.0.12
[INFO] [stderr]    Compiling futures-sink v0.3.26
[INFO] [stderr]    Compiling futures-io v0.3.26
[INFO] [stderr]    Compiling iana-time-zone v0.1.53
[INFO] [stderr]    Compiling form_urlencoded v1.1.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.51/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 unicode-normalization v0.1.22
[INFO] [stderr]    Compiling serde_json v1.0.93
[INFO] [stderr]    Compiling http v0.2.9
[INFO] [stderr]    Compiling futures-channel v0.3.26
[INFO] [stderr]    Compiling unicode-bidi v0.3.10
[INFO] [stderr]    Compiling siphasher v0.3.10
[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" "1253c2759d7cf5633267835830c6236f46b58e7e18d474bda841a4b7e97f23a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1253c2759d7cf5633267835830c6236f46b58e7e18d474bda841a4b7e97f23a8", kill_on_drop: false }`
[INFO] [stdout] 1253c2759d7cf5633267835830c6236f46b58e7e18d474bda841a4b7e97f23a8