[INFO] fetching crate npms 0.1.2...
[INFO] testing npms-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 npms 0.1.2 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate npms 0.1.2
[INFO] finished tweaking crates.io crate npms 0.1.2
[INFO] tweaked toml for crates.io crate npms 0.1.2 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate npms 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 npms 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 loa v0.1.8
[INFO] [stderr]   Downloaded libc-print v0.1.20
[INFO] [stderr]   Downloaded fancy-regex v0.10.0
[INFO] [stderr]   Downloaded doe v0.1.32
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] eb8cd257e1b0fd213f4f37cc0168a1735f3f87c7c8fbf00cf3a9f57fc645272c
[INFO] running `Command { std: "docker" "start" "-a" "eb8cd257e1b0fd213f4f37cc0168a1735f3f87c7c8fbf00cf3a9f57fc645272c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eb8cd257e1b0fd213f4f37cc0168a1735f3f87c7c8fbf00cf3a9f57fc645272c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb8cd257e1b0fd213f4f37cc0168a1735f3f87c7c8fbf00cf3a9f57fc645272c", kill_on_drop: false }`
[INFO] [stdout] eb8cd257e1b0fd213f4f37cc0168a1735f3f87c7c8fbf00cf3a9f57fc645272c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] e1a96f7d7a4a7621096dca728eec9f8d8caa8335bd795d82d6ee8abbee11e171
[INFO] running `Command { std: "docker" "start" "-a" "e1a96f7d7a4a7621096dca728eec9f8d8caa8335bd795d82d6ee8abbee11e171", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling cc v1.0.77
[INFO] [stderr]    Compiling once_cell v1.16.0
[INFO] [stderr]    Compiling tokio v1.22.0
[INFO] [stderr]    Compiling futures-core v0.3.25
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling itoa v1.0.4
[INFO] [stderr]    Compiling syn v1.0.103
[INFO] [stderr]    Compiling untrusted v0.7.1
[INFO] [stderr]    Compiling futures-task v0.3.25
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]    Compiling futures-util v0.3.25
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]    Compiling openssl v0.10.42
[INFO] [stderr]    Compiling futures-io v0.3.25
[INFO] [stderr]    Compiling http v0.2.8
[INFO] [stderr]    Compiling futures-channel v0.3.25
[INFO] [stderr]    Compiling futures-sink v0.3.25
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.47/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 rustls v0.20.7
[INFO] [stderr]    Compiling serde v1.0.147
[INFO] [stderr]    Compiling tracing-core v0.1.30
[INFO] [stderr]    Compiling percent-encoding v2.2.0
[INFO] [stderr]    Compiling unicode-normalization v0.1.22
[INFO] [stderr]    Compiling aho-corasick v0.7.19
[INFO] [stderr]    Compiling bit-vec v0.6.3
[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" "e1a96f7d7a4a7621096dca728eec9f8d8caa8335bd795d82d6ee8abbee11e171", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1a96f7d7a4a7621096dca728eec9f8d8caa8335bd795d82d6ee8abbee11e171", kill_on_drop: false }`
[INFO] [stdout] e1a96f7d7a4a7621096dca728eec9f8d8caa8335bd795d82d6ee8abbee11e171