[INFO] fetching crate comproxity 0.1.0-alpha.2...
[INFO] testing comproxity-0.1.0-alpha.2 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_getrandom_patch_0
[INFO] extracting crate comproxity 0.1.0-alpha.2 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate comproxity 0.1.0-alpha.2
[INFO] finished tweaking crates.io crate comproxity 0.1.0-alpha.2
[INFO] tweaked toml for crates.io crate comproxity 0.1.0-alpha.2 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate comproxity 0.1.0-alpha.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 comproxity 0.1.0-alpha.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 ulid v1.0.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.46
[INFO] [stderr]   Downloaded phf_codegen v0.11.1
[INFO] [stderr]   Downloaded unicode-ident v1.0.4
[INFO] [stderr]   Downloaded castaway v0.2.2
[INFO] [stderr]   Downloaded pathdiff v0.2.1
[INFO] [stderr]   Downloaded pest_meta v2.4.0
[INFO] [stderr]   Downloaded digest v0.10.5
[INFO] [stderr]   Downloaded phf v0.11.1
[INFO] [stderr]   Downloaded async-trait v0.1.57
[INFO] [stderr]   Downloaded compact_str v0.6.1
[INFO] [stderr]   Downloaded cxx-build v1.0.80
[INFO] [stderr]   Downloaded time v0.3.15
[INFO] [stderr]   Downloaded serde_with v2.0.1
[INFO] [stderr]   Downloaded pest v2.4.0
[INFO] [stderr]   Downloaded serde_json v1.0.87
[INFO] [stderr]   Downloaded syn v1.0.102
[INFO] [stderr]   Downloaded cxx v1.0.80
[INFO] [stderr]   Downloaded chrono v0.4.22
[INFO] [stderr]   Downloaded config v0.13.2
[INFO] [stderr]   Downloaded headers v0.3.8
[INFO] [stderr]   Downloaded parse-zoneinfo v0.3.0
[INFO] [stderr]   Downloaded cxxbridge-macro v1.0.80
[INFO] [stderr]   Downloaded darling_core v0.14.1
[INFO] [stderr]   Downloaded serde_derive v1.0.145
[INFO] [stderr]   Downloaded iana-time-zone v0.1.51
[INFO] [stderr]   Downloaded darling v0.14.1
[INFO] [stderr]   Downloaded serde v1.0.145
[INFO] [stderr]   Downloaded serde_with_macros v2.0.1
[INFO] [stderr]   Downloaded pest_generator v2.4.0
[INFO] [stderr]   Downloaded pest_derive v2.4.0
[INFO] [stderr]   Downloaded phf_generator v0.11.1
[INFO] [stderr]   Downloaded hyper-reverse-proxy v0.5.1
[INFO] [stderr]   Downloaded bmart-derive v0.1.3
[INFO] [stderr]   Downloaded chrono-tz-build v0.1.0
[INFO] [stderr]   Downloaded tokio v1.21.2
[INFO] [stderr]   Downloaded libc v0.2.134
[INFO] [stderr]   Downloaded phf_shared v0.11.1
[INFO] [stderr]   Downloaded hyper-static v0.1.6
[INFO] [stderr]   Downloaded chrono-tz v0.7.0
[INFO] [stderr]   Downloaded cxxbridge-flags v1.0.80
[INFO] [stderr]   Downloaded darling_macro v0.14.1
[INFO] [stderr]   Downloaded once_cell v1.15.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] aec17dee980f1f68818503344687f64b856d7ea90331e391f828aeb2655731e5
[INFO] running `Command { std: "docker" "start" "-a" "aec17dee980f1f68818503344687f64b856d7ea90331e391f828aeb2655731e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aec17dee980f1f68818503344687f64b856d7ea90331e391f828aeb2655731e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aec17dee980f1f68818503344687f64b856d7ea90331e391f828aeb2655731e5", kill_on_drop: false }`
[INFO] [stdout] aec17dee980f1f68818503344687f64b856d7ea90331e391f828aeb2655731e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 045dba039f898aea64d3a054c1f732ff69c1ad1e3661efbf0a452791dd4e5cc1
[INFO] running `Command { std: "docker" "start" "-a" "045dba039f898aea64d3a054c1f732ff69c1ad1e3661efbf0a452791dd4e5cc1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.46
[INFO] [stderr]    Compiling unicode-ident v1.0.4
[INFO] [stderr]    Compiling syn v1.0.102
[INFO] [stderr]    Compiling libc v0.2.134
[INFO] [stderr]    Compiling once_cell v1.15.0
[INFO] [stderr]    Compiling itoa v1.0.4
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling futures-core v0.3.25
[INFO] [stderr]    Compiling serde_derive v1.0.145
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[INFO] [stderr]    Compiling serde v1.0.145
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling bytes v1.2.1
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling futures-channel v0.3.25
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.46/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 siphasher v0.3.10
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]    Compiling futures-sink v0.3.25
[INFO] [stderr]    Compiling futures-task v0.3.25
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]    Compiling phf_shared v0.11.1
[INFO] [stderr]    Compiling tracing-core v0.1.30
[INFO] [stderr]    Compiling futures-util v0.3.25
[INFO] [stderr]    Compiling scopeguard v1.1.0
[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" "045dba039f898aea64d3a054c1f732ff69c1ad1e3661efbf0a452791dd4e5cc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "045dba039f898aea64d3a054c1f732ff69c1ad1e3661efbf0a452791dd4e5cc1", kill_on_drop: false }`
[INFO] [stdout] 045dba039f898aea64d3a054c1f732ff69c1ad1e3661efbf0a452791dd4e5cc1