[INFO] cloning repository https://github.com/sbeckeriv/mazerunner [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sbeckeriv/mazerunner" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsbeckeriv%2Fmazerunner", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsbeckeriv%2Fmazerunner'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 27980d232145c19f270d2bf0be527fbce89c3b84 [INFO] building sbeckeriv/mazerunner 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%2Fsbeckeriv%2Fmazerunner" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/sbeckeriv/mazerunner 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/sbeckeriv/mazerunner [INFO] finished tweaking git repo https://github.com/sbeckeriv/mazerunner [INFO] tweaked toml for git repo https://github.com/sbeckeriv/mazerunner written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/sbeckeriv/mazerunner 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] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded rand_core v0.6.0 [INFO] [stderr] Downloaded rand_pcg v0.3.0 [INFO] [stderr] Downloaded getrandom v0.2.0 [INFO] [stderr] Downloaded rand v0.8.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] fa1f36e3740a2bf1e815bd070ba936f17449d4a3357619adc85babbdfed964e6 [INFO] running `Command { std: "docker" "start" "-a" "fa1f36e3740a2bf1e815bd070ba936f17449d4a3357619adc85babbdfed964e6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "fa1f36e3740a2bf1e815bd070ba936f17449d4a3357619adc85babbdfed964e6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fa1f36e3740a2bf1e815bd070ba936f17449d4a3357619adc85babbdfed964e6", kill_on_drop: false }` [INFO] [stdout] fa1f36e3740a2bf1e815bd070ba936f17449d4a3357619adc85babbdfed964e6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 5c1b791b96cfbc4415a9498ba6ec88225e7cdef1fdfac5aaae7fce9833a191ce [INFO] running `Command { std: "docker" "start" "-a" "5c1b791b96cfbc4415a9498ba6ec88225e7cdef1fdfac5aaae7fce9833a191ce", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.81 [INFO] [stderr] Compiling getrandom v0.2.0 [INFO] [stderr] Compiling ppv-lite86 v0.2.10 [INFO] [stderr] Compiling rand_core v0.6.0 [INFO] [stderr] Compiling rand_chacha v0.3.0 [INFO] [stderr] Compiling rand_pcg v0.3.0 [INFO] [stderr] Compiling rand v0.8.0 [INFO] [stderr] Compiling mazerunner v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: function `backtracker` is never used [INFO] [stdout] --> src/builder/mod.rs:8:8 [INFO] [stdout] | [INFO] [stdout] 8 | pub fn backtracker(base: &mut Grid) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `hunt_and_kill` is never used [INFO] [stdout] --> src/builder/mod.rs:43:8 [INFO] [stdout] | [INFO] [stdout] 43 | pub fn hunt_and_kill(base: &mut Grid) { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `wilsons` is never used [INFO] [stdout] --> src/builder/mod.rs:98:8 [INFO] [stdout] | [INFO] [stdout] 98 | pub fn wilsons(base: &mut Grid) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `aldous_broder` is never used [INFO] [stdout] --> src/builder/mod.rs:152:8 [INFO] [stdout] | [INFO] [stdout] 152 | pub fn aldous_broder(base: &mut Grid) { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `sidewinder` is never used [INFO] [stdout] --> src/builder/mod.rs:182:8 [INFO] [stdout] | [INFO] [stdout] 182 | pub fn sidewinder(base: &mut Grid) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `row` and `column` are never read [INFO] [stdout] --> src/builder/grid.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 14 | pub struct Cell { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 15 | pub row: usize, [INFO] [stdout] | ^^^ [INFO] [stdout] 16 | pub column: usize, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Cell` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `unlink` and `linked` are never used [INFO] [stdout] --> src/builder/grid.rs:32:12 [INFO] [stdout] | [INFO] [stdout] 20 | impl Cell { [INFO] [stdout] | --------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 32 | pub fn unlink(&mut self, direction: LinkDirections) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 35 | pub fn linked(self, direction: LinkDirections) -> bool { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.63s [INFO] running `Command { std: "docker" "inspect" "5c1b791b96cfbc4415a9498ba6ec88225e7cdef1fdfac5aaae7fce9833a191ce", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5c1b791b96cfbc4415a9498ba6ec88225e7cdef1fdfac5aaae7fce9833a191ce", kill_on_drop: false }` [INFO] [stdout] 5c1b791b96cfbc4415a9498ba6ec88225e7cdef1fdfac5aaae7fce9833a191ce [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 336830d8db0eb78a1295fdd3cb9d30cc7e54369f94d15a07d66ec962b8f6fbb9 [INFO] running `Command { std: "docker" "start" "-a" "336830d8db0eb78a1295fdd3cb9d30cc7e54369f94d15a07d66ec962b8f6fbb9", kill_on_drop: false }` [INFO] [stderr] Compiling mazerunner v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: function `backtracker` is never used [INFO] [stdout] --> src/builder/mod.rs:8:8 [INFO] [stdout] | [INFO] [stdout] 8 | pub fn backtracker(base: &mut Grid) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `hunt_and_kill` is never used [INFO] [stdout] --> src/builder/mod.rs:43:8 [INFO] [stdout] | [INFO] [stdout] 43 | pub fn hunt_and_kill(base: &mut Grid) { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `wilsons` is never used [INFO] [stdout] --> src/builder/mod.rs:98:8 [INFO] [stdout] | [INFO] [stdout] 98 | pub fn wilsons(base: &mut Grid) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `aldous_broder` is never used [INFO] [stdout] --> src/builder/mod.rs:152:8 [INFO] [stdout] | [INFO] [stdout] 152 | pub fn aldous_broder(base: &mut Grid) { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `sidewinder` is never used [INFO] [stdout] --> src/builder/mod.rs:182:8 [INFO] [stdout] | [INFO] [stdout] 182 | pub fn sidewinder(base: &mut Grid) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `row` and `column` are never read [INFO] [stdout] --> src/builder/grid.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 14 | pub struct Cell { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 15 | pub row: usize, [INFO] [stdout] | ^^^ [INFO] [stdout] 16 | pub column: usize, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Cell` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `unlink` and `linked` are never used [INFO] [stdout] --> src/builder/grid.rs:32:12 [INFO] [stdout] | [INFO] [stdout] 20 | impl Cell { [INFO] [stdout] | --------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 32 | pub fn unlink(&mut self, direction: LinkDirections) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 35 | pub fn linked(self, direction: LinkDirections) -> bool { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.20s [INFO] running `Command { std: "docker" "inspect" "336830d8db0eb78a1295fdd3cb9d30cc7e54369f94d15a07d66ec962b8f6fbb9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "336830d8db0eb78a1295fdd3cb9d30cc7e54369f94d15a07d66ec962b8f6fbb9", kill_on_drop: false }` [INFO] [stdout] 336830d8db0eb78a1295fdd3cb9d30cc7e54369f94d15a07d66ec962b8f6fbb9