[INFO] fetching crate algori 0.12.0...
[INFO] checking algori-0.12.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate algori 0.12.0 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate algori 0.12.0 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 crates.io crate algori 0.12.0
[INFO] finished tweaking crates.io crate algori 0.12.0
[INFO] tweaked toml for crates.io crate algori 0.12.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 439a0d60848469d1e342f19c9ccf7aabdb064eec5de35217c65f788455b15866
[INFO] running `Command { std: "docker" "start" "-a" "439a0d60848469d1e342f19c9ccf7aabdb064eec5de35217c65f788455b15866", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "439a0d60848469d1e342f19c9ccf7aabdb064eec5de35217c65f788455b15866", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "439a0d60848469d1e342f19c9ccf7aabdb064eec5de35217c65f788455b15866", kill_on_drop: false }`
[INFO] [stdout] 439a0d60848469d1e342f19c9ccf7aabdb064eec5de35217c65f788455b15866
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] e401f158e42f877f84c9cecb8cce91d4852a0f354627797fe6877d6fe1df6351
[INFO] running `Command { std: "docker" "start" "-a" "e401f158e42f877f84c9cecb8cce91d4852a0f354627797fe6877d6fe1df6351", kill_on_drop: false }`
[INFO] [stderr]     Checking algori v0.12.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::super::is_sorted`
[INFO] [stdout]   --> src/sorting/insertion_sort.rs:81:9
[INFO] [stdout]    |
[INFO] [stdout] 81 |     use super::super::is_sorted;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]   --> src/sorting/insertion_sort.rs:80:1
[INFO] [stdout]    |
[INFO] [stdout] 80 | mod binary_sort_tests {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::binary_sort`
[INFO] [stdout]   --> src/sorting/insertion_sort.rs:82:9
[INFO] [stdout]    |
[INFO] [stdout] 82 |     use super::binary_sort;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]   --> src/sorting/insertion_sort.rs:80:1
[INFO] [stdout]    |
[INFO] [stdout] 80 | mod binary_sort_tests {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::add_two_linkedlist`
[INFO] [stdout]    --> src/structure/linkedlist.rs:545:9
[INFO] [stdout]     |
[INFO] [stdout] 545 |     use super::add_two_linkedlist;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::LinkedList`
[INFO] [stdout]    --> src/structure/linkedlist.rs:546:9
[INFO] [stdout]     |
[INFO] [stdout] 546 |     use super::LinkedList;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `mid_idx` is never read
[INFO] [stdout]   --> src/searching/binary_search.rs:15:13
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let mut mid_idx: usize = 0;
[INFO] [stdout]    |             ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `mid_idx` is never read
[INFO] [stdout]   --> src/searching/binary_search.rs:15:13
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let mut mid_idx: usize = 0;
[INFO] [stdout]    |             ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "e401f158e42f877f84c9cecb8cce91d4852a0f354627797fe6877d6fe1df6351", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e401f158e42f877f84c9cecb8cce91d4852a0f354627797fe6877d6fe1df6351", kill_on_drop: false }`
[INFO] [stdout] e401f158e42f877f84c9cecb8cce91d4852a0f354627797fe6877d6fe1df6351