[INFO] fetching crate cargo-devcade 0.8.0...
[INFO] testing cargo-devcade-0.8.0 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate cargo-devcade 0.8.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate cargo-devcade 0.8.0
[INFO] finished tweaking crates.io crate cargo-devcade 0.8.0
[INFO] tweaked toml for crates.io crate cargo-devcade 0.8.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate cargo-devcade 0.8.0 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 cargo-devcade 0.8.0 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 bzip2 v0.4.4
[INFO] [stderr]   Downloaded raw-window-handle v0.5.1
[INFO] [stderr]   Downloaded quote v1.0.25
[INFO] [stderr]   Downloaded cargo_metadata v0.15.3
[INFO] [stderr]   Downloaded webbrowser v0.8.8
[INFO] [stderr]   Downloaded simd-adler32 v0.3.5
[INFO] [stderr]   Downloaded thiserror-impl v1.0.39
[INFO] [stderr]   Downloaded thiserror v1.0.39
[INFO] [stderr]   Downloaded num-complex v0.4.3
[INFO] [stderr]   Downloaded unicode-bidi v0.3.12
[INFO] [stderr]   Downloaded serde_derive v1.0.155
[INFO] [stderr]   Downloaded zune-inflate v0.2.51
[INFO] [stderr]   Downloaded camino v1.1.4
[INFO] [stderr]   Downloaded io-lifetimes v1.0.6
[INFO] [stderr]   Downloaded spin v0.9.6
[INFO] [stderr]   Downloaded simba v0.7.3
[INFO] [stderr]   Downloaded half v2.2.1
[INFO] [stderr]   Downloaded serde v1.0.155
[INFO] [stderr]   Downloaded png v0.17.7
[INFO] [stderr]   Downloaded wide v0.7.8
[INFO] [stderr]   Downloaded time v0.3.20
[INFO] [stderr]   Downloaded exr v1.6.3
[INFO] [stderr]   Downloaded image v0.24.5
[INFO] [stderr]   Downloaded rustix v0.36.9
[INFO] [stderr]   Downloaded nalgebra v0.30.1
[INFO] [stderr]   Downloaded zstd-sys v2.0.7+zstd.1.5.4
[INFO] [stderr]   Downloaded jpeg-decoder v0.3.0
[INFO] [stderr]   Downloaded tiff v0.8.1
[INFO] [stderr]   Downloaded imageproc v0.23.0
[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] 5543c34288ce50e6882b04f4403acd67ac99d13385ab41c91a5a01f69ca8d19d
[INFO] running `Command { std: "docker" "start" "-a" "5543c34288ce50e6882b04f4403acd67ac99d13385ab41c91a5a01f69ca8d19d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5543c34288ce50e6882b04f4403acd67ac99d13385ab41c91a5a01f69ca8d19d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5543c34288ce50e6882b04f4403acd67ac99d13385ab41c91a5a01f69ca8d19d", kill_on_drop: false }`
[INFO] [stdout] 5543c34288ce50e6882b04f4403acd67ac99d13385ab41c91a5a01f69ca8d19d
[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] 032238117b570b8731403b002e05358b2d028720038e08c322f81b3b6ccd3b10
[INFO] running `Command { std: "docker" "start" "-a" "032238117b570b8731403b002e05358b2d028720038e08c322f81b3b6ccd3b10", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v1.0.25
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling serde_derive v1.0.155
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.52
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling miniz_oxide v0.6.2
[INFO] [stderr]    Compiling num_cpus v1.15.0
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling subtle v2.4.1
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling serde v1.0.155
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.52/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 num-rational v0.4.1
[INFO] [stderr]    Compiling io-lifetimes v1.0.6
[INFO] [stderr]    Compiling either v1.8.1
[INFO] [stderr]    Compiling futures-core v0.3.27
[INFO] [stderr]    Compiling bytemuck v1.13.1
[INFO] [stderr]    Compiling getrandom v0.2.8
[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" "032238117b570b8731403b002e05358b2d028720038e08c322f81b3b6ccd3b10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "032238117b570b8731403b002e05358b2d028720038e08c322f81b3b6ccd3b10", kill_on_drop: false }`
[INFO] [stdout] 032238117b570b8731403b002e05358b2d028720038e08c322f81b3b6ccd3b10