[INFO] cloning repository https://github.com/ghaerdi/rust-algorithms
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ghaerdi/rust-algorithms" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fghaerdi%2Frust-algorithms", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fghaerdi%2Frust-algorithms'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 54f700b961bada3c746ce1dc2e18012a56588901
[INFO] building ghaerdi/rust-algorithms against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fghaerdi%2Frust-algorithms" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ghaerdi/rust-algorithms on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ghaerdi/rust-algorithms
[INFO] finished tweaking git repo https://github.com/ghaerdi/rust-algorithms
[INFO] tweaked toml for git repo https://github.com/ghaerdi/rust-algorithms written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ghaerdi/rust-algorithms 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d781dcbc52cca4b3496cd9472b5b9dcb2da4faa22865fceba0011ffbd531baa0
[INFO] running `Command { std: "docker" "start" "-a" "d781dcbc52cca4b3496cd9472b5b9dcb2da4faa22865fceba0011ffbd531baa0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d781dcbc52cca4b3496cd9472b5b9dcb2da4faa22865fceba0011ffbd531baa0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d781dcbc52cca4b3496cd9472b5b9dcb2da4faa22865fceba0011ffbd531baa0", kill_on_drop: false }`
[INFO] [stdout] d781dcbc52cca4b3496cd9472b5b9dcb2da4faa22865fceba0011ffbd531baa0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 -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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7f79ddec82b677449b5cd71ef4c570a2a2aa20bcac02b478c1d60795082cfc07
[INFO] running `Command { std: "docker" "start" "-a" "7f79ddec82b677449b5cd71ef4c570a2a2aa20bcac02b478c1d60795082cfc07", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.103
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling rust-algorithms v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self::fibonacci::fibonacci`
[INFO] [stdout]  --> src/other/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use self::fibonacci::fibonacci;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::bubble::bubble`
[INFO] [stdout]  --> src/sort/mod.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use self::bubble::bubble;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::insertion::insertion`
[INFO] [stdout]  --> src/sort/mod.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub use self::insertion::insertion;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::merge::merge`
[INFO] [stdout]  --> src/sort/mod.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub use self::merge::merge;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::quick::quick`
[INFO] [stdout]   --> src/sort/mod.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub use self::quick::quick;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::selection::selection`
[INFO] [stdout]   --> src/sort/mod.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub use self::selection::selection;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.34s
[INFO] running `Command { std: "docker" "inspect" "7f79ddec82b677449b5cd71ef4c570a2a2aa20bcac02b478c1d60795082cfc07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f79ddec82b677449b5cd71ef4c570a2a2aa20bcac02b478c1d60795082cfc07", kill_on_drop: false }`
[INFO] [stdout] 7f79ddec82b677449b5cd71ef4c570a2a2aa20bcac02b478c1d60795082cfc07
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 -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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bc1a4eb26b38d97df86617c500f0bc694f8e28aecdbed1ae329d5653be7a1289
[INFO] running `Command { std: "docker" "start" "-a" "bc1a4eb26b38d97df86617c500f0bc694f8e28aecdbed1ae329d5653be7a1289", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-algorithms v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self::fibonacci::fibonacci`
[INFO] [stdout]  --> src/other/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use self::fibonacci::fibonacci;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::bubble::bubble`
[INFO] [stdout]  --> src/sort/mod.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use self::bubble::bubble;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::insertion::insertion`
[INFO] [stdout]  --> src/sort/mod.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub use self::insertion::insertion;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::merge::merge`
[INFO] [stdout]  --> src/sort/mod.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub use self::merge::merge;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::quick::quick`
[INFO] [stdout]   --> src/sort/mod.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub use self::quick::quick;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::selection::selection`
[INFO] [stdout]   --> src/sort/mod.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub use self::selection::selection;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "bc1a4eb26b38d97df86617c500f0bc694f8e28aecdbed1ae329d5653be7a1289", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc1a4eb26b38d97df86617c500f0bc694f8e28aecdbed1ae329d5653be7a1289", kill_on_drop: false }`
[INFO] [stdout] bc1a4eb26b38d97df86617c500f0bc694f8e28aecdbed1ae329d5653be7a1289