[INFO] cloning repository https://github.com/KnuckleheadsClub/rbdt
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KnuckleheadsClub/rbdt" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKnuckleheadsClub%2Frbdt", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKnuckleheadsClub%2Frbdt'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 19efea9fda17b91e481b1743bf686865c09573f4
[INFO] checking KnuckleheadsClub/rbdt/19efea9fda17b91e481b1743bf686865c09573f4 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKnuckleheadsClub%2Frbdt" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/KnuckleheadsClub/rbdt on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/KnuckleheadsClub/rbdt
[INFO] finished tweaking git repo https://github.com/KnuckleheadsClub/rbdt
[INFO] tweaked toml for git repo https://github.com/KnuckleheadsClub/rbdt written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/KnuckleheadsClub/rbdt 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" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5f85453a3367c022bdaf4315722e52b7645225f981a2ec889ce90269e96e8d77
[INFO] running `Command { std: "docker" "start" "-a" "5f85453a3367c022bdaf4315722e52b7645225f981a2ec889ce90269e96e8d77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f85453a3367c022bdaf4315722e52b7645225f981a2ec889ce90269e96e8d77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f85453a3367c022bdaf4315722e52b7645225f981a2ec889ce90269e96e8d77", kill_on_drop: false }`
[INFO] [stdout] 5f85453a3367c022bdaf4315722e52b7645225f981a2ec889ce90269e96e8d77
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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 -Dtail_expr_drop_order" "-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d7c0c1bfe473b69c20349fa476b98003bd97cfb432780d9679baec978cdf25e
[INFO] running `Command { std: "docker" "start" "-a" "9d7c0c1bfe473b69c20349fa476b98003bd97cfb432780d9679baec978cdf25e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling pyo3-build-config v0.14.5
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling libc v0.2.106
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]     Checking smallvec v1.7.0
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling unindent v0.1.7
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking lock_api v0.4.5
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking deunicode v1.3.1
[INFO] [stderr]     Checking unicode-bom v1.1.4
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]     Checking paste v0.1.18
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]    Compiling pyo3 v0.14.5
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]    Compiling pyo3-macros-backend v0.14.5
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling indoc-impl v0.3.6
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking indoc v0.3.6
[INFO] [stderr]    Compiling pyo3-macros v0.14.5
[INFO] [stderr]     Checking rbdt v0.0.4-alpha2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `can_access` is never used
[INFO] [stdout]    --> src/types.rs:191:4
[INFO] [stdout]     |
[INFO] [stdout] 191 | fn can_access(r: CollatedRules, s: String) -> bool {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rough_cmp_rules` is never used
[INFO] [stdout]    --> src/types.rs:232:8
[INFO] [stdout]     |
[INFO] [stdout] 232 | pub fn rough_cmp_rules(left: &CollatedRules, right: &CollatedRules) -> Option<Ordering> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `can_access` is never used
[INFO] [stdout]    --> src/types.rs:191:4
[INFO] [stdout]     |
[INFO] [stdout] 191 | fn can_access(r: CollatedRules, s: String) -> bool {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rough_cmp_rules` is never used
[INFO] [stdout]    --> src/types.rs:232:8
[INFO] [stdout]     |
[INFO] [stdout] 232 | pub fn rough_cmp_rules(left: &CollatedRules, right: &CollatedRules) -> Option<Ordering> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.57s
[INFO] running `Command { std: "docker" "inspect" "9d7c0c1bfe473b69c20349fa476b98003bd97cfb432780d9679baec978cdf25e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d7c0c1bfe473b69c20349fa476b98003bd97cfb432780d9679baec978cdf25e", kill_on_drop: false }`
[INFO] [stdout] 9d7c0c1bfe473b69c20349fa476b98003bd97cfb432780d9679baec978cdf25e