[INFO] fetching crate nrd-sys 0.2.0...
[INFO] testing nrd-sys-0.2.0 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate nrd-sys 0.2.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate nrd-sys 0.2.0
[INFO] finished tweaking crates.io crate nrd-sys 0.2.0
[INFO] tweaked toml for crates.io crate nrd-sys 0.2.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate nrd-sys 0.2.0 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 nrd-sys 0.2.0 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 sysreq v0.1.5
[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] 7caf14e32030d037497813541927ccf7a9aa8a5ebc129605bca04602ffe02c56
[INFO] running `Command { std: "docker" "start" "-a" "7caf14e32030d037497813541927ccf7a9aa8a5ebc129605bca04602ffe02c56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7caf14e32030d037497813541927ccf7a9aa8a5ebc129605bca04602ffe02c56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7caf14e32030d037497813541927ccf7a9aa8a5ebc129605bca04602ffe02c56", kill_on_drop: false }`
[INFO] [stdout] 7caf14e32030d037497813541927ccf7a9aa8a5ebc129605bca04602ffe02c56
[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] 171eae54b2828324640be75a360dce5be7ab7b34839fd960c0863ea34762ec4e
[INFO] running `Command { std: "docker" "start" "-a" "171eae54b2828324640be75a360dce5be7ab7b34839fd960c0863ea34762ec4e", kill_on_drop: false }`
[INFO] [stderr]    Compiling tinyvec_macros v0.1.1
[INFO] [stderr]    Compiling unicode-bidi v0.3.13
[INFO] [stderr]    Compiling percent-encoding v2.3.0
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]    Compiling form_urlencoded v1.2.0
[INFO] [stderr]    Compiling unicode-normalization v0.1.22
[INFO] [stderr]    Compiling idna v0.4.0
[INFO] [stderr]    Compiling url v2.4.1
[INFO] [stderr]    Compiling sysreq v0.1.5
[INFO] [stderr]    Compiling nrd-sys v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0425]: cannot find function `try_exists` in module `std::fs`
[INFO] [stdout]   --> build.rs:30:22
[INFO] [stdout]    |
[INFO] [stdout] 30 |         if !std::fs::try_exists(&install_path).expect("Unable to check library file location") {
[INFO] [stdout]    |                      ^^^^^^^^^^ not found in `std::fs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `fs_try_exists` has been stable since 1.81.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> build.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(fs_try_exists)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `nrd-sys` (build script) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "171eae54b2828324640be75a360dce5be7ab7b34839fd960c0863ea34762ec4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "171eae54b2828324640be75a360dce5be7ab7b34839fd960c0863ea34762ec4e", kill_on_drop: false }`
[INFO] [stdout] 171eae54b2828324640be75a360dce5be7ab7b34839fd960c0863ea34762ec4e