[INFO] fetching crate xan-log 1.0.1...
[INFO] building xan-log-1.0.1 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate xan-log 1.0.1 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate xan-log 1.0.1
[INFO] finished tweaking crates.io crate xan-log 1.0.1
[INFO] tweaked toml for crates.io crate xan-log 1.0.1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate xan-log 1.0.1 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate xan-log 1.0.1 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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.88
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.88
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.88
[INFO] [stderr]   Downloaded serde_derive v1.0.192
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.88
[INFO] [stderr]   Downloaded serde_json v1.0.108
[INFO] [stderr]   Downloaded syn v2.0.39
[INFO] [stderr]   Downloaded serde v1.0.192
[INFO] [stderr]   Downloaded js-sys v0.3.65
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.88
[INFO] [stderr]   Downloaded libc v0.2.150
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d24e348cee78a1efdc9614ecf246d0bedf258517ec0bb36bee4eaf3aafba058e
[INFO] running `Command { std: "docker" "start" "-a" "d24e348cee78a1efdc9614ecf246d0bedf258517ec0bb36bee4eaf3aafba058e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d24e348cee78a1efdc9614ecf246d0bedf258517ec0bb36bee4eaf3aafba058e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d24e348cee78a1efdc9614ecf246d0bedf258517ec0bb36bee4eaf3aafba058e", kill_on_drop: false }`
[INFO] [stdout] d24e348cee78a1efdc9614ecf246d0bedf258517ec0bb36bee4eaf3aafba058e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bd56ef5429d1b4f689255f4f9bd370f6ac55deb7c724af5fffaab69da73ef8df
[INFO] running `Command { std: "docker" "start" "-a" "bd56ef5429d1b4f689255f4f9bd370f6ac55deb7c724af5fffaab69da73ef8df", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.192
[INFO] [stderr]    Compiling serde_json v1.0.108
[INFO] [stderr]    Compiling ryu v1.0.15
[INFO] [stderr]    Compiling iana-time-zone v0.1.58
[INFO] [stderr]    Compiling itoa v1.0.9
[INFO] [stderr]    Compiling chrono v0.4.31
[INFO] [stderr]    Compiling xan-log v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.70s
[INFO] running `Command { std: "docker" "inspect" "bd56ef5429d1b4f689255f4f9bd370f6ac55deb7c724af5fffaab69da73ef8df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd56ef5429d1b4f689255f4f9bd370f6ac55deb7c724af5fffaab69da73ef8df", kill_on_drop: false }`
[INFO] [stdout] bd56ef5429d1b4f689255f4f9bd370f6ac55deb7c724af5fffaab69da73ef8df
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0c71334526a7c9fb240a4d78ae9d419ad9a3a5ee59ae71d97d7471a865914fe4
[INFO] running `Command { std: "docker" "start" "-a" "0c71334526a7c9fb240a4d78ae9d419ad9a3a5ee59ae71d97d7471a865914fe4", kill_on_drop: false }`
[INFO] [stderr]    Compiling xan-log v1.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0133]: call to unsafe function `set_var` is unsafe and requires unsafe block
[INFO] [stdout]   --> src/lib.rs:83:5
[INFO] [stdout]    |
[INFO] [stdout] 83 |     std::env::set_var("LOG_LEVEL", "TRACE");
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ call to unsafe function
[INFO] [stdout]    |
[INFO] [stdout]    = note: consult the function's documentation for information on how to avoid undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0133`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `xan-log` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "0c71334526a7c9fb240a4d78ae9d419ad9a3a5ee59ae71d97d7471a865914fe4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c71334526a7c9fb240a4d78ae9d419ad9a3a5ee59ae71d97d7471a865914fe4", kill_on_drop: false }`
[INFO] [stdout] 0c71334526a7c9fb240a4d78ae9d419ad9a3a5ee59ae71d97d7471a865914fe4