[INFO] updating cached repository alexeyden/ecmascript_toy [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/alexeyden/ecmascript_toy [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/alexeyden/ecmascript_toy" "work/ex/beta-1.38-1/sources/1.37.0/gh/alexeyden/ecmascript_toy"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/alexeyden/ecmascript_toy'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/alexeyden/ecmascript_toy" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/alexeyden/ecmascript_toy"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/alexeyden/ecmascript_toy'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 0297435df3d80bbb8f73289add0fb87038cd6330 [INFO] sha for GitHub repo alexeyden/ecmascript_toy: 0297435df3d80bbb8f73289add0fb87038cd6330 [INFO] validating manifest of alexeyden/ecmascript_toy on toolchain 1.37.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of alexeyden/ecmascript_toy on toolchain beta-2019-08-13 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing alexeyden/ecmascript_toy [INFO] finished frobbing alexeyden/ecmascript_toy [INFO] frobbed toml for alexeyden/ecmascript_toy written to work/ex/beta-1.38-1/sources/1.37.0/gh/alexeyden/ecmascript_toy/Cargo.toml [INFO] started frobbing alexeyden/ecmascript_toy [INFO] finished frobbing alexeyden/ecmascript_toy [INFO] frobbed toml for alexeyden/ecmascript_toy written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/alexeyden/ecmascript_toy/Cargo.toml [INFO] crate alexeyden/ecmascript_toy already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing alexeyden/ecmascript_toy against 1.37.0 for beta-1.38-1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/alexeyden/ecmascript_toy:/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" "+1.37.0" "build" "--frozen"` [INFO] [stdout] 08044e0847867a66a149b3be2c4757e2a4b79b1853643b60ee54b691babe83a3 [INFO] running `"docker" "start" "-a" "08044e0847867a66a149b3be2c4757e2a4b79b1853643b60ee54b691babe83a3"` [INFO] [stderr] Compiling getopts v0.2.15 [INFO] [stderr] warning[E0503]: cannot use `state` because it was mutably borrowed [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/getopts-0.2.15/src/lib.rs:1033:33 [INFO] [stderr] | [INFO] [stderr] 978 | let mut machine = |cont: &mut bool, (i, c): (usize, char)| { [INFO] [stderr] | ---------------------------------------- borrow of `state` occurs here [INFO] [stderr] ... [INFO] [stderr] 982 | state = match (state, whitespace, limit) { [INFO] [stderr] | ----- borrow occurs due to use of `state` in closure [INFO] [stderr] ... [INFO] [stderr] 1033 | while cont && match state { B | C => true, A => false } { [INFO] [stderr] | ^ use of borrowed `state` [INFO] [stderr] 1034 | machine(&mut cont, (fake_i, ' ')); [INFO] [stderr] | ------- borrow later used here [INFO] [stderr] | [INFO] [stderr] = warning: this error has been downgraded to a warning for backwards compatibility with previous releases [INFO] [stderr] = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future [INFO] [stderr] = note: for more information, try `rustc --explain E0729` [INFO] [stderr] [INFO] [stderr] Compiling ecmascript_toy v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/syntax_tree.rs:84:41 [INFO] [stderr] | [INFO] [stderr] 84 | pub fn visit(&mut self, visitor: &mut Visitor) { [INFO] [stderr] | ^^^^^^^ help: use `dyn`: `dyn Visitor` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(bare_trait_objects)] on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/main.rs:44:25 [INFO] [stderr] | [INFO] [stderr] 44 | let mut write : Box = if let Some(path) = matches.opt_str("o") { [INFO] [stderr] | ^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::io::Write` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/parser.rs:287:34 [INFO] [stderr] | [INFO] [stderr] 287 | fn parse_expression(&mut self, mut parent: &mut Node) { [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: variable does not need to be mutable [INFO] [stderr] --> src/parser.rs:312:37 [INFO] [stderr] | [INFO] [stderr] 312 | fn parse_condition_cmp(&mut self, mut parent: &mut Node) { [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/parser.rs:341:37 [INFO] [stderr] | [INFO] [stderr] 341 | fn parse_condition_and(&mut self, mut parent: &mut Node) { [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/parser.rs:365:33 [INFO] [stderr] | [INFO] [stderr] 365 | fn parse_condition(&mut self, mut parent: &mut Node) { [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/frame_stack.rs:122:9 [INFO] [stderr] | [INFO] [stderr] 122 | let mut offsets = &mut self.frames[self.cur_frame].var_offsets; [INFO] [stderr] | ----^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 4.27s [INFO] running `"docker" "inspect" "08044e0847867a66a149b3be2c4757e2a4b79b1853643b60ee54b691babe83a3"` [INFO] running `"docker" "rm" "-f" "08044e0847867a66a149b3be2c4757e2a4b79b1853643b60ee54b691babe83a3"` [INFO] [stdout] 08044e0847867a66a149b3be2c4757e2a4b79b1853643b60ee54b691babe83a3 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/alexeyden/ecmascript_toy:/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" "+1.37.0" "test" "--frozen" "--no-run"` [INFO] [stdout] 48d7cec7059109c0d21acf528607df6fcc7dcd434706c73f034affae52a1b57f [INFO] running `"docker" "start" "-a" "48d7cec7059109c0d21acf528607df6fcc7dcd434706c73f034affae52a1b57f"` [INFO] [stderr] Compiling ecmascript_toy v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/syntax_tree.rs:84:41 [INFO] [stderr] | [INFO] [stderr] 84 | pub fn visit(&mut self, visitor: &mut Visitor) { [INFO] [stderr] | ^^^^^^^ help: use `dyn`: `dyn Visitor` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(bare_trait_objects)] on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/main.rs:44:25 [INFO] [stderr] | [INFO] [stderr] 44 | let mut write : Box = if let Some(path) = matches.opt_str("o") { [INFO] [stderr] | ^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::io::Write` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/parser.rs:287:34 [INFO] [stderr] | [INFO] [stderr] 287 | fn parse_expression(&mut self, mut parent: &mut Node) { [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: variable does not need to be mutable [INFO] [stderr] --> src/parser.rs:312:37 [INFO] [stderr] | [INFO] [stderr] 312 | fn parse_condition_cmp(&mut self, mut parent: &mut Node) { [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/parser.rs:341:37 [INFO] [stderr] | [INFO] [stderr] 341 | fn parse_condition_and(&mut self, mut parent: &mut Node) { [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/parser.rs:365:33 [INFO] [stderr] | [INFO] [stderr] 365 | fn parse_condition(&mut self, mut parent: &mut Node) { [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/frame_stack.rs:122:9 [INFO] [stderr] | [INFO] [stderr] 122 | let mut offsets = &mut self.frames[self.cur_frame].var_offsets; [INFO] [stderr] | ----^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.40s [INFO] running `"docker" "inspect" "48d7cec7059109c0d21acf528607df6fcc7dcd434706c73f034affae52a1b57f"` [INFO] running `"docker" "rm" "-f" "48d7cec7059109c0d21acf528607df6fcc7dcd434706c73f034affae52a1b57f"` [INFO] [stdout] 48d7cec7059109c0d21acf528607df6fcc7dcd434706c73f034affae52a1b57f [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/alexeyden/ecmascript_toy:/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" "+1.37.0" "test" "--frozen"` [INFO] [stdout] e917b482d6f5e722622b3b96a7261d7fb643cf262a6334b729e18ade4629bf14 [INFO] running `"docker" "start" "-a" "e917b482d6f5e722622b3b96a7261d7fb643cf262a6334b729e18ade4629bf14"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running /opt/crater/target/debug/deps/ecmascript_toy-f89ed6446a71d47c [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test frame_stack::tests::test_frame_stack ... ok [INFO] [stdout] test var_analyzer::tests::test_analyser ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `"docker" "inspect" "e917b482d6f5e722622b3b96a7261d7fb643cf262a6334b729e18ade4629bf14"` [INFO] running `"docker" "rm" "-f" "e917b482d6f5e722622b3b96a7261d7fb643cf262a6334b729e18ade4629bf14"` [INFO] [stdout] e917b482d6f5e722622b3b96a7261d7fb643cf262a6334b729e18ade4629bf14