[INFO] fetching crate resw 0.7.0-alpha.2...
[INFO] testing resw-0.7.0-alpha.2 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate resw 0.7.0-alpha.2 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate resw 0.7.0-alpha.2
[INFO] finished tweaking crates.io crate resw 0.7.0-alpha.2
[INFO] tweaked toml for crates.io crate resw 0.7.0-alpha.2 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate resw 0.7.0-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 resw 0.7.0-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 resast v0.6.0-alpha.5
[INFO] [stderr]   Downloaded hash-chain v0.3.2
[INFO] [stderr]   Downloaded res-regex v0.1.4
[INFO] [stderr]   Downloaded proc-macro2 v1.0.59
[INFO] [stderr]   Downloaded ress v0.11.6
[INFO] [stderr]   Downloaded ressa v0.9.0-alpha.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] ec0d6a75919d97ae88914b91df5f0b1b2b4f7a049d1d063f6800720560b5a81c
[INFO] running `Command { std: "docker" "start" "-a" "ec0d6a75919d97ae88914b91df5f0b1b2b4f7a049d1d063f6800720560b5a81c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec0d6a75919d97ae88914b91df5f0b1b2b4f7a049d1d063f6800720560b5a81c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec0d6a75919d97ae88914b91df5f0b1b2b4f7a049d1d063f6800720560b5a81c", kill_on_drop: false }`
[INFO] [stdout] ec0d6a75919d97ae88914b91df5f0b1b2b4f7a049d1d063f6800720560b5a81c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 6ecbc108c5662e8ca87d6389bb42af391b608b3bea98a42e2ce31b4db48a56b4
[INFO] running `Command { std: "docker" "start" "-a" "6ecbc108c5662e8ca87d6389bb42af391b608b3bea98a42e2ce31b4db48a56b4", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.18
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]    Compiling resast v0.6.0-alpha.5
[INFO] [stderr]    Compiling ress v0.11.6
[INFO] [stderr]    Compiling resw v0.7.0-alpha.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/write_str.rs:15:27
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn generate_child(&mut self) -> ChildWriter {
[INFO] [stdout]    |                           ^^^^^^^^^     ----------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                           |
[INFO] [stdout]    |                           this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn generate_child(&mut self) -> ChildWriter<'_> {
[INFO] [stdout]    |                                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.25s
[INFO] running `Command { std: "docker" "inspect" "6ecbc108c5662e8ca87d6389bb42af391b608b3bea98a42e2ce31b4db48a56b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ecbc108c5662e8ca87d6389bb42af391b608b3bea98a42e2ce31b4db48a56b4", kill_on_drop: false }`
[INFO] [stdout] 6ecbc108c5662e8ca87d6389bb42af391b608b3bea98a42e2ce31b4db48a56b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 145a5c34ab60da65477e20e199d3c2ff876263d7f1b5e05fd03f5b92b3ab8460
[INFO] running `Command { std: "docker" "start" "-a" "145a5c34ab60da65477e20e199d3c2ff876263d7f1b5e05fd03f5b92b3ab8460", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.59
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling quote v1.0.28
[INFO] [stderr]    Compiling unicode-ident v1.0.9
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling unic-common v0.9.0
[INFO] [stderr]    Compiling unic-char-range v0.9.0
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling once_cell v1.17.2
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]    Compiling regex-syntax v0.7.2
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[INFO] [stderr]    Compiling termcolor v1.2.0
[INFO] [stderr]    Compiling unic-ucd-version v0.9.0
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]    Compiling unic-char-property v0.9.0
[INFO] [stderr]    Compiling hash-chain v0.3.2
[INFO] [stderr]    Compiling either v1.8.1
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/write_str.rs:15:27
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn generate_child(&mut self) -> ChildWriter {
[INFO] [stdout]    |                           ^^^^^^^^^     ----------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                           |
[INFO] [stdout]    |                           this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn generate_child(&mut self) -> ChildWriter<'_> {
[INFO] [stdout]    |                                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling tracing-core v0.1.31
[INFO] [stderr]    Compiling unic-ucd-ident v0.9.0
[INFO] [stderr]    Compiling res-regex v0.1.4
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[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] [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" "145a5c34ab60da65477e20e199d3c2ff876263d7f1b5e05fd03f5b92b3ab8460", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "145a5c34ab60da65477e20e199d3c2ff876263d7f1b5e05fd03f5b92b3ab8460", kill_on_drop: false }`
[INFO] [stdout] 145a5c34ab60da65477e20e199d3c2ff876263d7f1b5e05fd03f5b92b3ab8460