[INFO] fetching crate kak-popup 0.6.2-beta...
[INFO] testing kak-popup-0.6.2-beta against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate kak-popup 0.6.2-beta into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate kak-popup 0.6.2-beta
[INFO] finished tweaking crates.io crate kak-popup 0.6.2-beta
[INFO] tweaked toml for crates.io crate kak-popup 0.6.2-beta written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate kak-popup 0.6.2-beta 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 kak-popup 0.6.2-beta 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 clap v4.3.0
[INFO] [stderr]   Downloaded clap_derive v4.3.0
[INFO] [stderr]   Downloaded clap_builder v4.3.0
[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] 233c37dacdeff863fedf6c323c0d87c82b02ea125f445ad934d864b00f1aeb13
[INFO] running `Command { std: "docker" "start" "-a" "233c37dacdeff863fedf6c323c0d87c82b02ea125f445ad934d864b00f1aeb13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "233c37dacdeff863fedf6c323c0d87c82b02ea125f445ad934d864b00f1aeb13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "233c37dacdeff863fedf6c323c0d87c82b02ea125f445ad934d864b00f1aeb13", kill_on_drop: false }`
[INFO] [stdout] 233c37dacdeff863fedf6c323c0d87c82b02ea125f445ad934d864b00f1aeb13
[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] eb0f46fceb250369336c7579bec6bd5c016e1069f9ca4f1204e24d3d7f22a677
[INFO] running `Command { std: "docker" "start" "-a" "eb0f46fceb250369336c7579bec6bd5c016e1069f9ca4f1204e24d3d7f22a677", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.59
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling quote v1.0.28
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling unicode-ident v1.0.9
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling rustix v0.37.19
[INFO] [stderr]    Compiling linux-raw-sys v0.3.8
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.7
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling rustversion v1.0.12
[INFO] [stderr]    Compiling futures-sink v0.3.28
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[INFO] [stderr]    Compiling utf8parse v0.2.1
[INFO] [stderr]    Compiling anstyle v1.0.0
[INFO] [stderr]    Compiling colorchoice v1.0.0
[INFO] [stderr]    Compiling futures-io v0.3.28
[INFO] [stderr]    Compiling anstyle-parse v0.2.0
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling anstyle-query v1.0.0
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]    Compiling serde v1.0.163
[INFO] [stderr]    Compiling clap_lex v0.5.0
[INFO] [stderr]    Compiling serde_json v1.0.96
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling anyhow v1.0.71
[INFO] [stderr]    Compiling fastrand v1.9.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.59/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 itoa v1.0.6
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling bytes v1.4.0
[INFO] [stderr]    Compiling ryu v1.0.13
[INFO] [stderr]    Compiling once_cell v1.17.2
[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" "eb0f46fceb250369336c7579bec6bd5c016e1069f9ca4f1204e24d3d7f22a677", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb0f46fceb250369336c7579bec6bd5c016e1069f9ca4f1204e24d3d7f22a677", kill_on_drop: false }`
[INFO] [stdout] eb0f46fceb250369336c7579bec6bd5c016e1069f9ca4f1204e24d3d7f22a677