[INFO] updating cached repository alexandraorth/snake [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/alexandraorth/snake [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/alexandraorth/snake" "work/ex/beta-1.37-6/sources/1.36.0/gh/alexandraorth/snake"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/alexandraorth/snake'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/alexandraorth/snake" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/alexandraorth/snake"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/alexandraorth/snake'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 776a1f99328cfe3728ba60cfe8c908175b630d94 [INFO] sha for GitHub repo alexandraorth/snake: 776a1f99328cfe3728ba60cfe8c908175b630d94 [INFO] validating manifest of alexandraorth/snake on toolchain 1.36.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of alexandraorth/snake on toolchain beta-2019-07-23 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing alexandraorth/snake [INFO] finished frobbing alexandraorth/snake [INFO] frobbed toml for alexandraorth/snake written to work/ex/beta-1.37-6/sources/1.36.0/gh/alexandraorth/snake/Cargo.toml [INFO] started frobbing alexandraorth/snake [INFO] finished frobbing alexandraorth/snake [INFO] frobbed toml for alexandraorth/snake written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/alexandraorth/snake/Cargo.toml [INFO] crate alexandraorth/snake already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing alexandraorth/snake against 1.36.0 for beta-1.37-6 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/alexandraorth/snake:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "build" "--frozen"` [INFO] [stdout] a80e06381b20651a3d7a16979512056e8613c9c3108c3a8b1b8f0bf36ad8c3db [INFO] running `"docker" "start" "-a" "a80e06381b20651a3d7a16979512056e8613c9c3108c3a8b1b8f0bf36ad8c3db"` [INFO] [stderr] Compiling rand v0.5.5 [INFO] [stderr] Compiling termion v1.5.1 [INFO] [stderr] Compiling snake v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: cannot borrow `self.body` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/snake.rs:42:34 [INFO] [stderr] | [INFO] [stderr] 39 | let head = self.body.front().unwrap(); //TODO dont use unwrap [INFO] [stderr] | --------- immutable borrow occurs here [INFO] [stderr] ... [INFO] [stderr] 42 | Direction::UP => self.body.push_front(Segment{x: head.x, y: head.y - 1, direction: Direction::UP}), [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: cannot borrow `self.body` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/snake.rs:43:34 [INFO] [stderr] | [INFO] [stderr] 39 | let head = self.body.front().unwrap(); //TODO dont use unwrap [INFO] [stderr] | --------- immutable borrow occurs here [INFO] [stderr] ... [INFO] [stderr] 43 | Direction::DOWN => self.body.push_front(Segment{x: head.x, y: head.y + 1, direction: Direction::DOWN}), [INFO] [stderr] | ^^^^^^^^^ ------ immutable borrow later used here [INFO] [stderr] | | [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | [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: cannot borrow `self.body` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/snake.rs:44:34 [INFO] [stderr] | [INFO] [stderr] 39 | let head = self.body.front().unwrap(); //TODO dont use unwrap [INFO] [stderr] | --------- immutable borrow occurs here [INFO] [stderr] ... [INFO] [stderr] 44 | Direction::RIGHT => self.body.push_front(Segment{x: head.x + 1, y: head.y, direction: Direction::RIGHT}), [INFO] [stderr] | ^^^^^^^^^ ------ immutable borrow later used here [INFO] [stderr] | | [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | [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: cannot borrow `self.body` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/snake.rs:45:34 [INFO] [stderr] | [INFO] [stderr] 39 | let head = self.body.front().unwrap(); //TODO dont use unwrap [INFO] [stderr] | --------- immutable borrow occurs here [INFO] [stderr] ... [INFO] [stderr] 45 | Direction::LEFT => self.body.push_front(Segment{x: head.x - 1, y: head.y, direction: Direction::LEFT}), [INFO] [stderr] | ^^^^^^^^^ ------ immutable borrow later used here [INFO] [stderr] | | [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | [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: cannot borrow `self.body` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/snake.rs:57:34 [INFO] [stderr] | [INFO] [stderr] 54 | let tail = self.body.back().unwrap(); //TODO dont use unwrap [INFO] [stderr] | --------- immutable borrow occurs here [INFO] [stderr] ... [INFO] [stderr] 57 | Direction::UP => self.body.push_back(Segment{x: tail.x, y: tail.y + 1, direction: Direction::UP}), [INFO] [stderr] | ^^^^^^^^^ ------ immutable borrow later used here [INFO] [stderr] | | [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | [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: cannot borrow `self.body` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/snake.rs:58:34 [INFO] [stderr] | [INFO] [stderr] 54 | let tail = self.body.back().unwrap(); //TODO dont use unwrap [INFO] [stderr] | --------- immutable borrow occurs here [INFO] [stderr] ... [INFO] [stderr] 58 | Direction::DOWN => self.body.push_back(Segment{x: tail.x, y: tail.y - 1, direction: Direction::DOWN}), [INFO] [stderr] | ^^^^^^^^^ ------ immutable borrow later used here [INFO] [stderr] | | [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | [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: cannot borrow `self.body` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/snake.rs:59:34 [INFO] [stderr] | [INFO] [stderr] 54 | let tail = self.body.back().unwrap(); //TODO dont use unwrap [INFO] [stderr] | --------- immutable borrow occurs here [INFO] [stderr] ... [INFO] [stderr] 59 | Direction::RIGHT => self.body.push_back(Segment{x: tail.x - 1, y: tail.y, direction: Direction::RIGHT}), [INFO] [stderr] | ^^^^^^^^^ ------ immutable borrow later used here [INFO] [stderr] | | [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | [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: cannot borrow `self.body` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/snake.rs:60:34 [INFO] [stderr] | [INFO] [stderr] 54 | let tail = self.body.back().unwrap(); //TODO dont use unwrap [INFO] [stderr] | --------- immutable borrow occurs here [INFO] [stderr] ... [INFO] [stderr] 60 | Direction::LEFT => self.body.push_back(Segment{x: tail.x + 1, y: tail.y, direction: Direction::LEFT}), [INFO] [stderr] | ^^^^^^^^^ ------ immutable borrow later used here [INFO] [stderr] | | [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | [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] Finished dev [unoptimized + debuginfo] target(s) in 5.54s [INFO] running `"docker" "inspect" "a80e06381b20651a3d7a16979512056e8613c9c3108c3a8b1b8f0bf36ad8c3db"` [INFO] running `"docker" "rm" "-f" "a80e06381b20651a3d7a16979512056e8613c9c3108c3a8b1b8f0bf36ad8c3db"` [INFO] [stdout] a80e06381b20651a3d7a16979512056e8613c9c3108c3a8b1b8f0bf36ad8c3db [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/alexandraorth/snake:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "test" "--frozen" "--no-run"` [INFO] [stdout] a572cb1b6478c1ddbdb4d61029721b071d97269e1785e04c770974d25c62bf79 [INFO] running `"docker" "start" "-a" "a572cb1b6478c1ddbdb4d61029721b071d97269e1785e04c770974d25c62bf79"` [INFO] [stderr] Compiling snake v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: cannot borrow `self.body` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/snake.rs:42:34 [INFO] [stderr] | [INFO] [stderr] 39 | let head = self.body.front().unwrap(); //TODO dont use unwrap [INFO] [stderr] | --------- immutable borrow occurs here [INFO] [stderr] ... [INFO] [stderr] 42 | Direction::UP => self.body.push_front(Segment{x: head.x, y: head.y - 1, direction: Direction::UP}), [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: cannot borrow `self.body` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/snake.rs:43:34 [INFO] [stderr] | [INFO] [stderr] 39 | let head = self.body.front().unwrap(); //TODO dont use unwrap [INFO] [stderr] | --------- immutable borrow occurs here [INFO] [stderr] ... [INFO] [stderr] 43 | Direction::DOWN => self.body.push_front(Segment{x: head.x, y: head.y + 1, direction: Direction::DOWN}), [INFO] [stderr] | ^^^^^^^^^ ------ immutable borrow later used here [INFO] [stderr] | | [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | [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: cannot borrow `self.body` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/snake.rs:44:34 [INFO] [stderr] | [INFO] [stderr] 39 | let head = self.body.front().unwrap(); //TODO dont use unwrap [INFO] [stderr] | --------- immutable borrow occurs here [INFO] [stderr] ... [INFO] [stderr] 44 | Direction::RIGHT => self.body.push_front(Segment{x: head.x + 1, y: head.y, direction: Direction::RIGHT}), [INFO] [stderr] | ^^^^^^^^^ ------ immutable borrow later used here [INFO] [stderr] | | [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | [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: cannot borrow `self.body` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/snake.rs:45:34 [INFO] [stderr] | [INFO] [stderr] 39 | let head = self.body.front().unwrap(); //TODO dont use unwrap [INFO] [stderr] | --------- immutable borrow occurs here [INFO] [stderr] ... [INFO] [stderr] 45 | Direction::LEFT => self.body.push_front(Segment{x: head.x - 1, y: head.y, direction: Direction::LEFT}), [INFO] [stderr] | ^^^^^^^^^ ------ immutable borrow later used here [INFO] [stderr] | | [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | [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: cannot borrow `self.body` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/snake.rs:57:34 [INFO] [stderr] | [INFO] [stderr] 54 | let tail = self.body.back().unwrap(); //TODO dont use unwrap [INFO] [stderr] | --------- immutable borrow occurs here [INFO] [stderr] ... [INFO] [stderr] 57 | Direction::UP => self.body.push_back(Segment{x: tail.x, y: tail.y + 1, direction: Direction::UP}), [INFO] [stderr] | ^^^^^^^^^ ------ immutable borrow later used here [INFO] [stderr] | | [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | [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: cannot borrow `self.body` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/snake.rs:58:34 [INFO] [stderr] | [INFO] [stderr] 54 | let tail = self.body.back().unwrap(); //TODO dont use unwrap [INFO] [stderr] | --------- immutable borrow occurs here [INFO] [stderr] ... [INFO] [stderr] 58 | Direction::DOWN => self.body.push_back(Segment{x: tail.x, y: tail.y - 1, direction: Direction::DOWN}), [INFO] [stderr] | ^^^^^^^^^ ------ immutable borrow later used here [INFO] [stderr] | | [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | [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: cannot borrow `self.body` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/snake.rs:59:34 [INFO] [stderr] | [INFO] [stderr] 54 | let tail = self.body.back().unwrap(); //TODO dont use unwrap [INFO] [stderr] | --------- immutable borrow occurs here [INFO] [stderr] ... [INFO] [stderr] 59 | Direction::RIGHT => self.body.push_back(Segment{x: tail.x - 1, y: tail.y, direction: Direction::RIGHT}), [INFO] [stderr] | ^^^^^^^^^ ------ immutable borrow later used here [INFO] [stderr] | | [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | [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: cannot borrow `self.body` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/snake.rs:60:34 [INFO] [stderr] | [INFO] [stderr] 54 | let tail = self.body.back().unwrap(); //TODO dont use unwrap [INFO] [stderr] | --------- immutable borrow occurs here [INFO] [stderr] ... [INFO] [stderr] 60 | Direction::LEFT => self.body.push_back(Segment{x: tail.x + 1, y: tail.y, direction: Direction::LEFT}), [INFO] [stderr] | ^^^^^^^^^ ------ immutable borrow later used here [INFO] [stderr] | | [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | [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] Finished dev [unoptimized + debuginfo] target(s) in 0.78s [INFO] running `"docker" "inspect" "a572cb1b6478c1ddbdb4d61029721b071d97269e1785e04c770974d25c62bf79"` [INFO] running `"docker" "rm" "-f" "a572cb1b6478c1ddbdb4d61029721b071d97269e1785e04c770974d25c62bf79"` [INFO] [stdout] a572cb1b6478c1ddbdb4d61029721b071d97269e1785e04c770974d25c62bf79 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/alexandraorth/snake:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "test" "--frozen"` [INFO] [stdout] 3a6e91470df72a07153034165c48c3bea1cfd2443e18c10ce4e24b9f61f83026 [INFO] running `"docker" "start" "-a" "3a6e91470df72a07153034165c48c3bea1cfd2443e18c10ce4e24b9f61f83026"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running /opt/crater/target/debug/deps/snake-52fe82e4a719c0af [INFO] [stdout] [INFO] [stdout] running 4 tests [INFO] [stdout] test snake::tests::snake_created_has_size_2 ... ok [INFO] [stdout] test snake::tests::growing_snake_has_increased_size ... ok [INFO] [stdout] test snake::tests::crawling_snake_has_same_size ... ok [INFO] [stdout] test snake::tests::crawling_snake_has_moved ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `"docker" "inspect" "3a6e91470df72a07153034165c48c3bea1cfd2443e18c10ce4e24b9f61f83026"` [INFO] running `"docker" "rm" "-f" "3a6e91470df72a07153034165c48c3bea1cfd2443e18c10ce4e24b9f61f83026"` [INFO] [stdout] 3a6e91470df72a07153034165c48c3bea1cfd2443e18c10ce4e24b9f61f83026