[INFO] fetching crate msecret 0.1.2...
[INFO] testing msecret-0.1.2 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate msecret 0.1.2 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate msecret 0.1.2
[INFO] finished tweaking crates.io crate msecret 0.1.2
[INFO] tweaked toml for crates.io crate msecret 0.1.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate msecret 0.1.2 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 msecret 0.1.2 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 rustyline-derive v0.9.0
[INFO] [stderr]   Downloaded shellwords v1.1.0
[INFO] [stderr]   Downloaded signature v2.0.0
[INFO] [stderr]   Downloaded fd-lock v3.0.12
[INFO] [stderr]   Downloaded darling_macro v0.12.4
[INFO] [stderr]   Downloaded x25519-dalek v2.0.0-rc.3
[INFO] [stderr]   Downloaded cpufeatures v0.2.8
[INFO] [stderr]   Downloaded platforms v3.0.2
[INFO] [stderr]   Downloaded constant_time_eq v0.2.6
[INFO] [stderr]   Downloaded sec1 v0.7.1
[INFO] [stderr]   Downloaded primeorder v0.13.2
[INFO] [stderr]   Downloaded gf256-macros v0.3.0
[INFO] [stderr]   Downloaded ed25519 v2.2.1
[INFO] [stderr]   Downloaded darling v0.12.4
[INFO] [stderr]   Downloaded clap_derive v4.3.0
[INFO] [stderr]   Downloaded arrayvec v0.7.3
[INFO] [stderr]   Downloaded blake2b_simd v1.0.1
[INFO] [stderr]   Downloaded clap v4.3.0
[INFO] [stderr]   Downloaded evalexpr v6.6.0
[INFO] [stderr]   Downloaded crypto-bigint v0.5.2
[INFO] [stderr]   Downloaded ed25519-dalek v2.0.0-rc.3
[INFO] [stderr]   Downloaded darling_core v0.12.4
[INFO] [stderr]   Downloaded k256 v0.13.1
[INFO] [stderr]   Downloaded der v0.7.6
[INFO] [stderr]   Downloaded gf256 v0.3.0
[INFO] [stderr]   Downloaded elliptic-curve v0.13.5
[INFO] [stderr]   Downloaded rustyline v12.0.0
[INFO] [stderr]   Downloaded clap_builder v4.3.0
[INFO] [stderr]   Downloaded ecdsa v0.16.7
[INFO] [stderr]   Downloaded rust-argon2 v1.0.0
[INFO] [stderr]   Downloaded mnemonic v1.0.1
[INFO] [stderr]   Downloaded curve25519-dalek v4.0.0-rc.3
[INFO] [stderr]   Downloaded openssl-src v111.25.0+1.1.1t
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 13a0dd11b1a3f6859845484359c4daeb0ee91e0a583c4a8540d4eefe09683bd4
[INFO] running `Command { std: "docker" "start" "-a" "13a0dd11b1a3f6859845484359c4daeb0ee91e0a583c4a8540d4eefe09683bd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "13a0dd11b1a3f6859845484359c4daeb0ee91e0a583c4a8540d4eefe09683bd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13a0dd11b1a3f6859845484359c4daeb0ee91e0a583c4a8540d4eefe09683bd4", kill_on_drop: false }`
[INFO] [stdout] 13a0dd11b1a3f6859845484359c4daeb0ee91e0a583c4a8540d4eefe09683bd4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] a72ddb5f0a01ce35d7152989b450a5f1986da36caa02c0e3c2dd599244a390c9
[INFO] running `Command { std: "docker" "start" "-a" "a72ddb5f0a01ce35d7152989b450a5f1986da36caa02c0e3c2dd599244a390c9", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.59
[INFO] [stderr]    Compiling quote v1.0.28
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling const-oid v0.9.2
[INFO] [stderr]    Compiling subtle v2.4.1
[INFO] [stderr]    Compiling base64ct v1.6.0
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling semver v1.0.17
[INFO] [stderr]    Compiling pem-rfc7468 v0.7.0
[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 rustix v0.37.13
[INFO] [stderr]    Compiling libm v0.2.7
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling platforms v3.0.2
[INFO] [stderr]    Compiling linux-raw-sys v0.3.8
[INFO] [stderr]    Compiling cpufeatures 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" "a72ddb5f0a01ce35d7152989b450a5f1986da36caa02c0e3c2dd599244a390c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a72ddb5f0a01ce35d7152989b450a5f1986da36caa02c0e3c2dd599244a390c9", kill_on_drop: false }`
[INFO] [stdout] a72ddb5f0a01ce35d7152989b450a5f1986da36caa02c0e3c2dd599244a390c9