[INFO] fetching crate nineties 0.1.4...
[INFO] testing nineties-0.1.4 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate nineties 0.1.4 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate nineties 0.1.4
[INFO] finished tweaking crates.io crate nineties 0.1.4
[INFO] tweaked toml for crates.io crate nineties 0.1.4 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate nineties 0.1.4 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 nineties 0.1.4 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 4d380385f440f3b1d4a186e8b1cad2bf4f1c6ee2b1f21dbb70c916ebd265c14f
[INFO] running `Command { std: "docker" "start" "-a" "4d380385f440f3b1d4a186e8b1cad2bf4f1c6ee2b1f21dbb70c916ebd265c14f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d380385f440f3b1d4a186e8b1cad2bf4f1c6ee2b1f21dbb70c916ebd265c14f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d380385f440f3b1d4a186e8b1cad2bf4f1c6ee2b1f21dbb70c916ebd265c14f", kill_on_drop: false }`
[INFO] [stdout] 4d380385f440f3b1d4a186e8b1cad2bf4f1c6ee2b1f21dbb70c916ebd265c14f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] ec7440f4aa11b83777a6df1e9b7ab262c2fe8ce8ec1c5ed0d288ab0d6b6e5bd9
[INFO] running `Command { std: "docker" "start" "-a" "ec7440f4aa11b83777a6df1e9b7ab262c2fe8ce8ec1c5ed0d288ab0d6b6e5bd9", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling unicode-ident v1.0.14
[INFO] [stderr]    Compiling dotenv v0.15.0
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling include_dir_macros v0.7.4
[INFO] [stderr]    Compiling include_dir v0.7.4
[INFO] [stderr]    Compiling nineties v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] error: proc macro panicked
[INFO] [stdout]   --> src/main.rs:32:25
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let stub_dir: Dir = include_dir!("$PATH_TO_STUBS");
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: message: called `Result::unwrap()` on an `Err` value: MissingVariable { variable: "PATH_TO_STUBS" }
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufRead`
[INFO] [stdout]  --> src/main.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::{BufRead, Error};
[INFO] [stdout]   |               ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `nineties` (bin "nineties") due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "ec7440f4aa11b83777a6df1e9b7ab262c2fe8ce8ec1c5ed0d288ab0d6b6e5bd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec7440f4aa11b83777a6df1e9b7ab262c2fe8ce8ec1c5ed0d288ab0d6b6e5bd9", kill_on_drop: false }`
[INFO] [stdout] ec7440f4aa11b83777a6df1e9b7ab262c2fe8ce8ec1c5ed0d288ab0d6b6e5bd9