[INFO] fetching crate crabdropper-cli 0.2.3...
[INFO] testing crabdropper-cli-0.2.3 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate crabdropper-cli 0.2.3 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate crabdropper-cli 0.2.3
[INFO] finished tweaking crates.io crate crabdropper-cli 0.2.3
[INFO] tweaked toml for crates.io crate crabdropper-cli 0.2.3 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate crabdropper-cli 0.2.3 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 crabdropper-cli 0.2.3 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 screenshots v0.5.2
[INFO] [stderr]   Downloaded readkey v0.1.7
[INFO] [stderr]   Downloaded display-info v0.4.1
[INFO] [stderr]   Downloaded macos-accessibility-client v0.0.1
[INFO] [stderr]   Downloaded readmouse v0.2.1
[INFO] [stderr]   Downloaded device_query v1.1.2
[INFO] [stderr]   Downloaded mouce v0.2.41
[INFO] [stderr]   Downloaded copypasta v0.8.1
[INFO] [stderr]   Downloaded x11-clipboard v0.6.1
[INFO] [stderr]   Downloaded xcb v1.2.0
[INFO] [stderr]   Downloaded libdbus-sys v0.2.3
[INFO] [stderr]   Downloaded copypasta-ext v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] a3b60105763dd7017d5849d21851655c3a2d3113fc01888e16fe50f05f2171aa
[INFO] running `Command { std: "docker" "start" "-a" "a3b60105763dd7017d5849d21851655c3a2d3113fc01888e16fe50f05f2171aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a3b60105763dd7017d5849d21851655c3a2d3113fc01888e16fe50f05f2171aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3b60105763dd7017d5849d21851655c3a2d3113fc01888e16fe50f05f2171aa", kill_on_drop: false }`
[INFO] [stdout] a3b60105763dd7017d5849d21851655c3a2d3113fc01888e16fe50f05f2171aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] d55fcbf76d1002d0c6b125824dbaa75dadc44d6759b7fe3661988c47e3972fbc
[INFO] running `Command { std: "docker" "start" "-a" "d55fcbf76d1002d0c6b125824dbaa75dadc44d6759b7fe3661988c47e3972fbc", kill_on_drop: false }`
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling proc-macro2 v1.0.50
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling libloading v0.7.4
[INFO] [stderr]    Compiling once_cell v1.17.0
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]    Compiling downcast-rs v1.2.0
[INFO] [stderr]    Compiling scoped-tls v1.0.1
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling miniz_oxide v0.6.2
[INFO] [stderr]    Compiling anyhow v1.0.69
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling dlib v0.5.0
[INFO] [stderr]    Compiling copypasta-ext v0.4.1
[INFO] [stderr]    Compiling either v1.8.1
[INFO] [stderr]    Compiling screenshots v0.5.2
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling color_quant v1.1.0
[INFO] [stderr]    Compiling bytemuck v1.13.0
[INFO] [stderr]    Compiling termcolor v1.2.0
[INFO] [stderr]    Compiling flate2 v1.0.25
[INFO] [stderr]    Compiling quick-xml v0.22.0
[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" "d55fcbf76d1002d0c6b125824dbaa75dadc44d6759b7fe3661988c47e3972fbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d55fcbf76d1002d0c6b125824dbaa75dadc44d6759b7fe3661988c47e3972fbc", kill_on_drop: false }`
[INFO] [stdout] d55fcbf76d1002d0c6b125824dbaa75dadc44d6759b7fe3661988c47e3972fbc