[INFO] cloning repository https://github.com/MichaelGrigoryan25/rust-xo [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MichaelGrigoryan25/rust-xo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMichaelGrigoryan25%2Frust-xo", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMichaelGrigoryan25%2Frust-xo'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 1a640246e1428882e3fa1a4d35d69e85effca92c [INFO] testing MichaelGrigoryan25/rust-xo against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMichaelGrigoryan25%2Frust-xo" "/workspace/builds/worker-50/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-50/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/MichaelGrigoryan25/rust-xo on toolchain 722e1797249a965b6335aebd65d777f917e498f1 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/MichaelGrigoryan25/rust-xo [INFO] finished tweaking git repo https://github.com/MichaelGrigoryan25/rust-xo [INFO] tweaked toml for git repo https://github.com/MichaelGrigoryan25/rust-xo written to /workspace/builds/worker-50/source/Cargo.toml [INFO] crate git repo https://github.com/MichaelGrigoryan25/rust-xo already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a602202b442e3e3cab3285065510cc09882177a991e045af5798d82cde3551fb [INFO] running `Command { std: "docker" "start" "-a" "a602202b442e3e3cab3285065510cc09882177a991e045af5798d82cde3551fb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a602202b442e3e3cab3285065510cc09882177a991e045af5798d82cde3551fb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a602202b442e3e3cab3285065510cc09882177a991e045af5798d82cde3551fb", kill_on_drop: false }` [INFO] [stdout] a602202b442e3e3cab3285065510cc09882177a991e045af5798d82cde3551fb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f06fd974824c2e7e84e3b7f88438b2e63e9024381e4c3d3c3482940ea36fb31e [INFO] running `Command { std: "docker" "start" "-a" "f06fd974824c2e7e84e3b7f88438b2e63e9024381e4c3d3c3482940ea36fb31e", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling libc v0.2.94 [INFO] [stderr] Compiling getrandom v0.2.2 [INFO] [stderr] Compiling ppv-lite86 v0.2.10 [INFO] [stderr] Compiling ansi_term v0.12.1 [INFO] [stderr] Compiling rand_core v0.6.2 [INFO] [stderr] Compiling rand_chacha v0.3.0 [INFO] [stderr] Compiling rand v0.8.3 [INFO] [stderr] Compiling rust-xo v1.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/board.rs:30:9 [INFO] [stdout] | [INFO] [stdout] 30 | &board_string.push_str(&format!("{}\n", ÷r)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 30 | let _ = &board_string.push_str(&format!("{}\n", ÷r)); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/board.rs:52:9 [INFO] [stdout] | [INFO] [stdout] 52 | &board_string.push_str(&format!("{}", ÷r)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 52 | let _ = &board_string.push_str(&format!("{}", ÷r)); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/moves.rs:26:13 [INFO] [stdout] | [INFO] [stdout] 26 | &position_string.clear(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 26 | let _ = &position_string.clear(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/moves.rs:40:17 [INFO] [stdout] | [INFO] [stdout] 40 | &position_string.clear(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 40 | let _ = &position_string.clear(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 28.20s [INFO] running `Command { std: "docker" "inspect" "f06fd974824c2e7e84e3b7f88438b2e63e9024381e4c3d3c3482940ea36fb31e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f06fd974824c2e7e84e3b7f88438b2e63e9024381e4c3d3c3482940ea36fb31e", kill_on_drop: false }` [INFO] [stdout] f06fd974824c2e7e84e3b7f88438b2e63e9024381e4c3d3c3482940ea36fb31e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 69093b264fb17f1d4e5965a0e381d6796472425c5f35e0d5c949d217aa4e8516 [INFO] running `Command { std: "docker" "start" "-a" "69093b264fb17f1d4e5965a0e381d6796472425c5f35e0d5c949d217aa4e8516", kill_on_drop: false }` [INFO] [stderr] Compiling rust-xo v1.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/board.rs:30:9 [INFO] [stdout] | [INFO] [stdout] 30 | &board_string.push_str(&format!("{}\n", ÷r)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 30 | let _ = &board_string.push_str(&format!("{}\n", ÷r)); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/board.rs:52:9 [INFO] [stdout] | [INFO] [stdout] 52 | &board_string.push_str(&format!("{}", ÷r)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 52 | let _ = &board_string.push_str(&format!("{}", ÷r)); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/moves.rs:26:13 [INFO] [stdout] | [INFO] [stdout] 26 | &position_string.clear(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 26 | let _ = &position_string.clear(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/moves.rs:40:17 [INFO] [stdout] | [INFO] [stdout] 40 | &position_string.clear(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 40 | let _ = &position_string.clear(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/board.rs:30:9 [INFO] [stdout] | [INFO] [stdout] 30 | &board_string.push_str(&format!("{}\n", ÷r)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 30 | let _ = &board_string.push_str(&format!("{}\n", ÷r)); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/board.rs:52:9 [INFO] [stdout] | [INFO] [stdout] 52 | &board_string.push_str(&format!("{}", ÷r)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 52 | let _ = &board_string.push_str(&format!("{}", ÷r)); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/moves.rs:26:13 [INFO] [stdout] | [INFO] [stdout] 26 | &position_string.clear(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 26 | let _ = &position_string.clear(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/moves.rs:40:17 [INFO] [stdout] | [INFO] [stdout] 40 | &position_string.clear(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 40 | let _ = &position_string.clear(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.06s [INFO] running `Command { std: "docker" "inspect" "69093b264fb17f1d4e5965a0e381d6796472425c5f35e0d5c949d217aa4e8516", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "69093b264fb17f1d4e5965a0e381d6796472425c5f35e0d5c949d217aa4e8516", kill_on_drop: false }` [INFO] [stdout] 69093b264fb17f1d4e5965a0e381d6796472425c5f35e0d5c949d217aa4e8516 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 2e5c6075a474d5c5a55443865ccda57ba3601ca6c50aeeb4c0b665588efca2a3 [INFO] running `Command { std: "docker" "start" "-a" "2e5c6075a474d5c5a55443865ccda57ba3601ca6c50aeeb4c0b665588efca2a3", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] warning: unused borrow that must be used [INFO] [stderr] --> src/board.rs:30:9 [INFO] [stderr] | [INFO] [stderr] 30 | &board_string.push_str(&format!("{}\n", ÷r)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 30 | let _ = &board_string.push_str(&format!("{}\n", ÷r)); [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: unused borrow that must be used [INFO] [stderr] --> src/board.rs:52:9 [INFO] [stderr] | [INFO] [stderr] 52 | &board_string.push_str(&format!("{}", ÷r)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stderr] | [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 52 | let _ = &board_string.push_str(&format!("{}", ÷r)); [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: unused borrow that must be used [INFO] [stderr] --> src/moves.rs:26:13 [INFO] [stderr] | [INFO] [stderr] 26 | &position_string.clear(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stderr] | [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 26 | let _ = &position_string.clear(); [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: unused borrow that must be used [INFO] [stderr] --> src/moves.rs:40:17 [INFO] [stderr] | [INFO] [stderr] 40 | &position_string.clear(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stderr] | [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 40 | let _ = &position_string.clear(); [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: `rust-xo` (lib) generated 4 warnings [INFO] [stderr] warning: `rust-xo` (lib test) generated 4 warnings (4 duplicates) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 2.18s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/rust_xo-fbbc5d15daf5be08) [INFO] [stdout] [INFO] [stdout] running 3 tests [INFO] [stdout] test tests::check_winner_o ... ok [INFO] [stdout] test tests::check_winner_none ... ok [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/rust_xo-360e12205677aca7) [INFO] [stdout] test tests::check_winner_x ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Doc-tests rust-xo [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "2e5c6075a474d5c5a55443865ccda57ba3601ca6c50aeeb4c0b665588efca2a3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2e5c6075a474d5c5a55443865ccda57ba3601ca6c50aeeb4c0b665588efca2a3", kill_on_drop: false }` [INFO] [stdout] 2e5c6075a474d5c5a55443865ccda57ba3601ca6c50aeeb4c0b665588efca2a3