[INFO] cloning repository https://github.com/sdrucito/rustlings
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sdrucito/rustlings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsdrucito%2Frustlings", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsdrucito%2Frustlings'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8dcd18c014b29d3d8613110308f8f90a7acc03d6
[INFO] testing sdrucito/rustlings/8dcd18c014b29d3d8613110308f8f90a7acc03d6 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_getrandom_patch_2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsdrucito%2Frustlings" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
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[INFO] started tweaking git repo https://github.com/sdrucito/rustlings
[INFO] finished tweaking git repo https://github.com/sdrucito/rustlings
[INFO] tweaked toml for git repo https://github.com/sdrucito/rustlings written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sdrucito/rustlings 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/sdrucito/rustlings 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]  Downloading crates ...
[INFO] [stderr]   Downloaded clap_lex v0.5.1
[INFO] [stderr]   Downloaded anstream v0.5.0
[INFO] [stderr]   Downloaded anstyle-wincon v2.1.0
[INFO] [stderr]   Downloaded home v0.5.4
[INFO] [stderr]   Downloaded clap_builder v4.4.2
[INFO] [stderr]   Downloaded bstr v1.6.2
[INFO] [stderr]   Downloaded clap_derive v4.4.2
[INFO] [stderr]   Downloaded anstyle v1.0.3
[INFO] [stderr]   Downloaded clap v4.4.3
[INFO] [stderr]   Downloaded portable-atomic v1.4.3
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b10d3b5c51880fd0775b98e34b3929cab86ab7c0ba65d6e97fe7dbd128f7fb6c
[INFO] running `Command { std: "docker" "start" "-a" "b10d3b5c51880fd0775b98e34b3929cab86ab7c0ba65d6e97fe7dbd128f7fb6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b10d3b5c51880fd0775b98e34b3929cab86ab7c0ba65d6e97fe7dbd128f7fb6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b10d3b5c51880fd0775b98e34b3929cab86ab7c0ba65d6e97fe7dbd128f7fb6c", kill_on_drop: false }`
[INFO] [stdout] b10d3b5c51880fd0775b98e34b3929cab86ab7c0ba65d6e97fe7dbd128f7fb6c
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 5a3f51f6cc1d191043163d4a4c8c7408202439a1fc804a1ace87c2b16b5bc939
[INFO] running `Command { std: "docker" "start" "-a" "5a3f51f6cc1d191043163d4a4c8c7408202439a1fc804a1ace87c2b16b5bc939", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.53
[INFO] [stderr]    Compiling serde_derive v1.0.158
[INFO] [stderr]    Compiling serde v1.0.158
[INFO] [stderr]    Compiling anstyle-query v1.0.0
[INFO] [stderr]    Compiling portable-atomic v1.4.3
[INFO] [stderr]    Compiling anstyle v1.0.3
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling anstyle-parse v0.2.1
[INFO] [stderr]    Compiling walkdir v2.3.3
[INFO] [stderr]    Compiling clap_lex v0.5.1
[INFO] [stderr]    Compiling memchr v2.6.3
[INFO] [stderr]    Compiling winnow v0.5.15
[INFO] [stderr]    Compiling inotify-sys v0.1.5
[INFO] [stderr]    Compiling filetime v0.2.22
[INFO] [stderr]    Compiling mio v0.8.9
[INFO] [stderr]    Compiling serde_json v1.0.94
[INFO] [stderr]    Compiling console v0.15.5
[INFO] [stderr]    Compiling anstream v0.5.0
[INFO] [stderr]    Compiling inotify v0.9.6
[INFO] [stderr]    Compiling number_prefix v0.4.0
[INFO] [stderr]    Compiling glob v0.3.1
[INFO] [stderr]    Compiling home v0.5.4
[INFO] [stderr]    Compiling clap_builder v4.4.2
[INFO] [stderr]    Compiling crossbeam-channel v0.5.8
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.53/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 aho-corasick v0.7.20
[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" "5a3f51f6cc1d191043163d4a4c8c7408202439a1fc804a1ace87c2b16b5bc939", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a3f51f6cc1d191043163d4a4c8c7408202439a1fc804a1ace87c2b16b5bc939", kill_on_drop: false }`
[INFO] [stdout] 5a3f51f6cc1d191043163d4a4c8c7408202439a1fc804a1ace87c2b16b5bc939