[INFO] cloning repository https://github.com/anima-libera/xxbf
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/anima-libera/xxbf" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanima-libera%2Fxxbf", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanima-libera%2Fxxbf'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 03ef3b4f5570ba6e290b08994ccf0cf198cb14c3
[INFO] checking anima-libera/xxbf against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanima-libera%2Fxxbf" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/anima-libera/xxbf on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/anima-libera/xxbf
[INFO] finished tweaking git repo https://github.com/anima-libera/xxbf
[INFO] tweaked toml for git repo https://github.com/anima-libera/xxbf written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/anima-libera/xxbf already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0e204987c76d2c10258b08d5b5aa4974da01e391210b17a6ebca61ad35ddb33d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0e204987c76d2c10258b08d5b5aa4974da01e391210b17a6ebca61ad35ddb33d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0e204987c76d2c10258b08d5b5aa4974da01e391210b17a6ebca61ad35ddb33d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e204987c76d2c10258b08d5b5aa4974da01e391210b17a6ebca61ad35ddb33d", kill_on_drop: false }`
[INFO] [stdout] 0e204987c76d2c10258b08d5b5aa4974da01e391210b17a6ebca61ad35ddb33d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5f979dee2f7ca0215afdad6cdf6daf017d0f72caf38d8f52e4ee612f385e8de5
[INFO] running `Command { std: "docker" "start" "-a" "5f979dee2f7ca0215afdad6cdf6daf017d0f72caf38d8f52e4ee612f385e8de5", kill_on_drop: false }`
[INFO] [stderr]     Checking xxbf v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum is never used: `CellInfoForward`
[INFO] [stdout]  --> src/astsoup.rs:5:6
[INFO] [stdout]   |
[INFO] [stdout] 5 | enum CellInfoForward {
[INFO] [stdout]   |      ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `CellInfoBackward`
[INFO] [stdout]   --> src/astsoup.rs:11:6
[INFO] [stdout]    |
[INFO] [stdout] 11 | enum CellInfoBackward {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `TapeSliceInfoForward`
[INFO] [stdout]   --> src/astsoup.rs:17:6
[INFO] [stdout]    |
[INFO] [stdout] 17 | enum TapeSliceInfoForward {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `TapeInfoForward`
[INFO] [stdout]   --> src/astsoup.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | struct TapeInfoForward {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `path`
[INFO] [stdout]   --> src/main.rs:32:2
[INFO] [stdout]    |
[INFO] [stdout] 32 |     path: Option<String>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `CellInfoForward`
[INFO] [stdout]  --> src/astsoup.rs:5:6
[INFO] [stdout]   |
[INFO] [stdout] 5 | enum CellInfoForward {
[INFO] [stdout]   |      ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `CellInfoBackward`
[INFO] [stdout]   --> src/astsoup.rs:11:6
[INFO] [stdout]    |
[INFO] [stdout] 11 | enum CellInfoBackward {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `TapeSliceInfoForward`
[INFO] [stdout]   --> src/astsoup.rs:17:6
[INFO] [stdout]    |
[INFO] [stdout] 17 | enum TapeSliceInfoForward {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `TapeInfoForward`
[INFO] [stdout]   --> src/astsoup.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | struct TapeInfoForward {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `path`
[INFO] [stdout]   --> src/main.rs:32:2
[INFO] [stdout]    |
[INFO] [stdout] 32 |     path: Option<String>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `Command { std: "docker" "inspect" "5f979dee2f7ca0215afdad6cdf6daf017d0f72caf38d8f52e4ee612f385e8de5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f979dee2f7ca0215afdad6cdf6daf017d0f72caf38d8f52e4ee612f385e8de5", kill_on_drop: false }`
[INFO] [stdout] 5f979dee2f7ca0215afdad6cdf6daf017d0f72caf38d8f52e4ee612f385e8de5