[INFO] cloning repository https://github.com/jamesacklin/urbit-notifier
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jamesacklin/urbit-notifier" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjamesacklin%2Furbit-notifier", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjamesacklin%2Furbit-notifier'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0709e75b94d24807363b603bc72b80d1d4bdbca2
[INFO] testing jamesacklin/urbit-notifier against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjamesacklin%2Furbit-notifier" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jamesacklin/urbit-notifier
[INFO] finished tweaking git repo https://github.com/jamesacklin/urbit-notifier
[INFO] tweaked toml for git repo https://github.com/jamesacklin/urbit-notifier written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jamesacklin/urbit-notifier 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 git repo https://github.com/jamesacklin/urbit-notifier 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-macros v1.8.2
[INFO] [stderr]   Downloaded tempfile v3.4.0
[INFO] [stderr]   Downloaded thiserror-impl v1.0.39
[INFO] [stderr]   Downloaded urbit-http-api v0.7.3
[INFO] [stderr]   Downloaded cxxbridge-flags v1.0.92
[INFO] [stderr]   Downloaded thiserror v1.0.39
[INFO] [stderr]   Downloaded clap_lex v0.3.2
[INFO] [stderr]   Downloaded clap_derive v4.1.8
[INFO] [stderr]   Downloaded futures-channel v0.3.26
[INFO] [stderr]   Downloaded cxxbridge-macro v1.0.92
[INFO] [stderr]   Downloaded reqwest v0.11.14
[INFO] [stderr]   Downloaded cxx-build v1.0.92
[INFO] [stderr]   Downloaded openssl-sys v0.9.80
[INFO] [stderr]   Downloaded futures-util v0.3.26
[INFO] [stderr]   Downloaded hyper v0.14.24
[INFO] [stderr]   Downloaded clap v4.1.8
[INFO] [stderr]   Downloaded cxx v1.0.92
[INFO] [stderr]   Downloaded futures-task v0.3.26
[INFO] [stderr]   Downloaded openssl v0.10.45
[INFO] [stderr]   Downloaded futures-sink v0.3.26
[INFO] [stderr]   Downloaded ipnet v2.7.1
[INFO] [stderr]   Downloaded io-lifetimes v1.0.6
[INFO] [stderr]   Downloaded rustix v0.36.9
[INFO] [stderr]   Downloaded unicode-bidi v0.3.10
[INFO] [stderr]   Downloaded is-terminal v0.4.4
[INFO] [stderr]   Downloaded scratch v1.0.5
[INFO] [stderr]   Downloaded eventsource-threaded v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 4f2450016b137b98920c2de344eab266cc3595dd380c75a871e75671c9cf6681
[INFO] running `Command { std: "docker" "start" "-a" "4f2450016b137b98920c2de344eab266cc3595dd380c75a871e75671c9cf6681", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f2450016b137b98920c2de344eab266cc3595dd380c75a871e75671c9cf6681", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f2450016b137b98920c2de344eab266cc3595dd380c75a871e75671c9cf6681", kill_on_drop: false }`
[INFO] [stdout] 4f2450016b137b98920c2de344eab266cc3595dd380c75a871e75671c9cf6681
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 1147220cb327318d5ef125c701e8725b3aa5807126c99a636f63859076a76601
[INFO] running `Command { std: "docker" "start" "-a" "1147220cb327318d5ef125c701e8725b3aa5807126c99a636f63859076a76601", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling futures-core v0.3.26
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]    Compiling bytes v1.4.0
[INFO] [stderr]    Compiling itoa v1.0.6
[INFO] [stderr]    Compiling tracing-core v0.1.30
[INFO] [stderr]    Compiling futures-task v0.3.26
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]    Compiling futures-sink v0.3.26
[INFO] [stderr]    Compiling futures-util v0.3.26
[INFO] [stderr]    Compiling futures-io v0.3.26
[INFO] [stderr]    Compiling foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling parking_lot_core v0.9.7
[INFO] [stderr]    Compiling openssl v0.10.45
[INFO] [stderr]    Compiling foreign-types v0.3.2
[INFO] [stderr]    Compiling bytes v0.5.6
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]    Compiling tracing v0.1.37
[INFO] [stderr]    Compiling futures-channel v0.3.26
[INFO] [stderr]    Compiling tokio v1.26.0
[INFO] [stderr]    Compiling openssl-probe v0.1.5
[INFO] [stderr]    Compiling pin-project-lite v0.1.12
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]    Compiling try-lock v0.2.4
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling http v0.2.9
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.51/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]    Compiling tinyvec_macros v0.1.1
[INFO] [stderr]    Compiling serde v1.0.152
[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" "1147220cb327318d5ef125c701e8725b3aa5807126c99a636f63859076a76601", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1147220cb327318d5ef125c701e8725b3aa5807126c99a636f63859076a76601", kill_on_drop: false }`
[INFO] [stdout] 1147220cb327318d5ef125c701e8725b3aa5807126c99a636f63859076a76601