[INFO] fetching crate pylon-sys 0.1.3...
[INFO] testing pylon-sys-0.1.3 against 1.100.0-beta.1 for beta-1.100-2
[INFO] extracting crate pylon-sys 0.1.3 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate pylon-sys 0.1.3
[INFO] finished tweaking crates.io crate pylon-sys 0.1.3
[INFO] tweaked toml for crates.io crate pylon-sys 0.1.3 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate pylon-sys 0.1.3 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 42 packages to highest compatible versions
[INFO] [stderr]       Adding bindgen v0.58.1 (available: v0.73.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 7127c168ee579c9aa4a30d3167282dfb7e95ccc7a2e7d4298f1c8bfb652680b2
[INFO] running `Command { std: "docker" "start" "7127c168ee579c9aa4a30d3167282dfb7e95ccc7a2e7d4298f1c8bfb652680b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7127c168ee579c9aa4a30d3167282dfb7e95ccc7a2e7d4298f1c8bfb652680b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "7127c168ee579c9aa4a30d3167282dfb7e95ccc7a2e7d4298f1c8bfb652680b2" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7127c168ee579c9aa4a30d3167282dfb7e95ccc7a2e7d4298f1c8bfb652680b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "7127c168ee579c9aa4a30d3167282dfb7e95ccc7a2e7d4298f1c8bfb652680b2" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.190
[INFO] [stderr]    Compiling memchr v2.8.3
[INFO] [stderr]    Compiling glob v0.3.4
[INFO] [stderr]    Compiling regex-syntax v0.8.11
[INFO] [stderr]    Compiling proc-macro2 v1.0.107
[INFO] [stderr]    Compiling unicode-ident v1.0.26
[INFO] [stderr]    Compiling unicode-width v0.1.14
[INFO] [stderr]    Compiling cfg-if v1.0.5
[INFO] [stderr]    Compiling quote v1.0.47
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling log v0.4.34
[INFO] [stderr]    Compiling bindgen v0.58.1
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling nom v5.1.3
[INFO] [stderr]    Compiling humantime v2.4.0
[INFO] [stderr]    Compiling libloading v0.8.9
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling lazy_static v1.5.1
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling clang-sys v1.9.1
[INFO] [stderr]    Compiling aho-corasick v1.1.5
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]    Compiling regex-automata v0.4.18
[INFO] [stderr]    Compiling regex v1.13.1
[INFO] [stderr]    Compiling env_logger v0.8.4
[INFO] [stderr]    Compiling pylon-sys v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] error: environment variable `PYLON_ROOT` not defined at compile time
[INFO] [stdout]  --> build.rs:7:22
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let pylon_root = env!("PYLON_ROOT");
[INFO] [stdout]   |                      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: use `std::env::var("PYLON_ROOT")` to read the variable at run time
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pylon-sys` (build script) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "7127c168ee579c9aa4a30d3167282dfb7e95ccc7a2e7d4298f1c8bfb652680b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7127c168ee579c9aa4a30d3167282dfb7e95ccc7a2e7d4298f1c8bfb652680b2", kill_on_drop: false }`
[INFO] [stdout] 7127c168ee579c9aa4a30d3167282dfb7e95ccc7a2e7d4298f1c8bfb652680b2
