[INFO] cloning repository https://github.com/rofrol/rust-flood-fill [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rofrol/rust-flood-fill" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frofrol%2Frust-flood-fill", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frofrol%2Frust-flood-fill'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 926b0d596b6b787ab67ba569a1b1640d42e8fbc6 [INFO] testing rofrol/rust-flood-fill against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frofrol%2Frust-flood-fill" "/workspace/builds/worker-15/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/rofrol/rust-flood-fill on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/rofrol/rust-flood-fill [INFO] finished tweaking git repo https://github.com/rofrol/rust-flood-fill [INFO] tweaked toml for git repo https://github.com/rofrol/rust-flood-fill written to /workspace/builds/worker-15/source/Cargo.toml [INFO] crate git repo https://github.com/rofrol/rust-flood-fill already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "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-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e5ae712782ab37f36c4c0945b0cf352e2a36873d1589d350594d35905e0d2218 [INFO] running `Command { std: "docker" "start" "-a" "e5ae712782ab37f36c4c0945b0cf352e2a36873d1589d350594d35905e0d2218", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e5ae712782ab37f36c4c0945b0cf352e2a36873d1589d350594d35905e0d2218", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e5ae712782ab37f36c4c0945b0cf352e2a36873d1589d350594d35905e0d2218", kill_on_drop: false }` [INFO] [stdout] e5ae712782ab37f36c4c0945b0cf352e2a36873d1589d350594d35905e0d2218 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] affb5323a45071fdbef1e23b0cf1f4b214ef8b9433c274447d0eec498c01b809 [INFO] running `Command { std: "docker" "start" "-a" "affb5323a45071fdbef1e23b0cf1f4b214ef8b9433c274447d0eec498c01b809", kill_on_drop: false }` [INFO] [stderr] Compiling rust-flood-fill v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `visited` [INFO] [stdout] --> src/main.rs:5:13 [INFO] [stdout] | [INFO] [stdout] 5 | let mut visited = [[0u8; 4]; 6]; [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visited` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/main.rs:11:10 [INFO] [stdout] | [INFO] [stdout] 11 | for (x, row) in state.iter().enumerate() { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/main.rs:13:14 [INFO] [stdout] | [INFO] [stdout] 13 | for (y, cell) in row.iter().enumerate() { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:5:9 [INFO] [stdout] | [INFO] [stdout] 5 | let mut visited = [[0u8; 4]; 6]; [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: cannot borrow `colors` as mutable because it is also borrowed as immutable [INFO] [stdout] --> src/main.rs:16:13 [INFO] [stdout] | [INFO] [stdout] 15 | let val = colors.get(cell).unwrap_or(&0); [INFO] [stdout] | ------ immutable borrow occurs here [INFO] [stdout] 16 | colors.insert(cell, val + 1); [INFO] [stdout] | ^^^^^^ --- immutable borrow later used here [INFO] [stdout] | | [INFO] [stdout] | mutable borrow occurs here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default [INFO] [stdout] = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future [INFO] [stdout] = note: for more information, see issue #59159 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.35s [INFO] running `Command { std: "docker" "inspect" "affb5323a45071fdbef1e23b0cf1f4b214ef8b9433c274447d0eec498c01b809", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "affb5323a45071fdbef1e23b0cf1f4b214ef8b9433c274447d0eec498c01b809", kill_on_drop: false }` [INFO] [stdout] affb5323a45071fdbef1e23b0cf1f4b214ef8b9433c274447d0eec498c01b809 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] bebc4469321910e498b59a04884cded15645b4f21af2cebdb03f5edf52eaefb1 [INFO] running `Command { std: "docker" "start" "-a" "bebc4469321910e498b59a04884cded15645b4f21af2cebdb03f5edf52eaefb1", kill_on_drop: false }` [INFO] [stderr] Compiling rust-flood-fill v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `visited` [INFO] [stdout] --> src/main.rs:5:13 [INFO] [stdout] | [INFO] [stdout] 5 | let mut visited = [[0u8; 4]; 6]; [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visited` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/main.rs:11:10 [INFO] [stdout] | [INFO] [stdout] 11 | for (x, row) in state.iter().enumerate() { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/main.rs:13:14 [INFO] [stdout] | [INFO] [stdout] 13 | for (y, cell) in row.iter().enumerate() { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:5:9 [INFO] [stdout] | [INFO] [stdout] 5 | let mut visited = [[0u8; 4]; 6]; [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: cannot borrow `colors` as mutable because it is also borrowed as immutable [INFO] [stdout] --> src/main.rs:16:13 [INFO] [stdout] | [INFO] [stdout] 15 | let val = colors.get(cell).unwrap_or(&0); [INFO] [stdout] | ------ immutable borrow occurs here [INFO] [stdout] 16 | colors.insert(cell, val + 1); [INFO] [stdout] | ^^^^^^ --- immutable borrow later used here [INFO] [stdout] | | [INFO] [stdout] | mutable borrow occurs here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default [INFO] [stdout] = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future [INFO] [stdout] = note: for more information, see issue #59159 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.24s [INFO] running `Command { std: "docker" "inspect" "bebc4469321910e498b59a04884cded15645b4f21af2cebdb03f5edf52eaefb1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bebc4469321910e498b59a04884cded15645b4f21af2cebdb03f5edf52eaefb1", kill_on_drop: false }` [INFO] [stdout] bebc4469321910e498b59a04884cded15645b4f21af2cebdb03f5edf52eaefb1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] ff5168d5582b8ef2636ee8f9a4dea814944a17ddd48e01d863a57b5f207d3c4d [INFO] running `Command { std: "docker" "start" "-a" "ff5168d5582b8ef2636ee8f9a4dea814944a17ddd48e01d863a57b5f207d3c4d", kill_on_drop: false }` [INFO] [stderr] warning: unused variable: `visited` [INFO] [stderr] --> src/main.rs:5:13 [INFO] [stderr] | [INFO] [stderr] 5 | let mut visited = [[0u8; 4]; 6]; [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visited` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/main.rs:11:10 [INFO] [stderr] | [INFO] [stderr] 11 | for (x, row) in state.iter().enumerate() { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `y` [INFO] [stderr] --> src/main.rs:13:14 [INFO] [stderr] | [INFO] [stderr] 13 | for (y, cell) in row.iter().enumerate() { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:5:9 [INFO] [stderr] | [INFO] [stderr] 5 | let mut visited = [[0u8; 4]; 6]; [INFO] [stderr] | ----^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: cannot borrow `colors` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/main.rs:16:13 [INFO] [stderr] | [INFO] [stderr] 15 | let val = colors.get(cell).unwrap_or(&0); [INFO] [stderr] | ------ immutable borrow occurs here [INFO] [stderr] 16 | colors.insert(cell, val + 1); [INFO] [stderr] | ^^^^^^ --- immutable borrow later used here [INFO] [stderr] | | [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default [INFO] [stderr] = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future [INFO] [stderr] = note: for more information, see issue #59159 [INFO] [stderr] [INFO] [stderr] warning: 5 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.00s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/rust_flood_fill-3a5147e30b14e5be) [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" "ff5168d5582b8ef2636ee8f9a4dea814944a17ddd48e01d863a57b5f207d3c4d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ff5168d5582b8ef2636ee8f9a4dea814944a17ddd48e01d863a57b5f207d3c4d", kill_on_drop: false }` [INFO] [stdout] ff5168d5582b8ef2636ee8f9a4dea814944a17ddd48e01d863a57b5f207d3c4d