[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-1.37-6/sources/1.36.0/gh/alexeyden/ecmascript_toy"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/alexeyden/ecmascript_toy'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/alexeyden/ecmascript_toy" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/alexeyden/ecmascript_toy"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/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 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of alexeyden/ecmascript_toy 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 alexeyden/ecmascript_toy
[INFO] finished frobbing alexeyden/ecmascript_toy
[INFO] frobbed toml for alexeyden/ecmascript_toy written to work/ex/beta-1.37-6/sources/1.36.0/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-1.37-6/sources/beta-2019-07-23/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" "+1.36.0" "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 alexeyden/ecmascript_toy 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-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] a5c332577151d969d97e825be938f59462a76ddccd721a0efe8ad64ec1692cd4
[INFO] running `"docker" "start" "-a" "a5c332577151d969d97e825be938f59462a76ddccd721a0efe8ad64ec1692cd4"`
[INFO] [stderr]    Compiling ecmascript_toy v0.1.0 (/opt/crater/workdir)
[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 3.09s
[INFO] running `"docker" "inspect" "a5c332577151d969d97e825be938f59462a76ddccd721a0efe8ad64ec1692cd4"`
[INFO] running `"docker" "rm" "-f" "a5c332577151d969d97e825be938f59462a76ddccd721a0efe8ad64ec1692cd4"`
[INFO] [stdout] a5c332577151d969d97e825be938f59462a76ddccd721a0efe8ad64ec1692cd4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 12a94a24d7bd57537917015f329984da60b48ca92f74cb31d74549c3d33cfb5c
[INFO] running `"docker" "start" "-a" "12a94a24d7bd57537917015f329984da60b48ca92f74cb31d74549c3d33cfb5c"`
[INFO] [stderr]    Compiling ecmascript_toy v0.1.0 (/opt/crater/workdir)
[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 1.51s
[INFO] running `"docker" "inspect" "12a94a24d7bd57537917015f329984da60b48ca92f74cb31d74549c3d33cfb5c"`
[INFO] running `"docker" "rm" "-f" "12a94a24d7bd57537917015f329984da60b48ca92f74cb31d74549c3d33cfb5c"`
[INFO] [stdout] 12a94a24d7bd57537917015f329984da60b48ca92f74cb31d74549c3d33cfb5c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] a313a87b467d41551440c969d9c626b2b9369950b21edcf89e92167280803fbe
[INFO] running `"docker" "start" "-a" "a313a87b467d41551440c969d9c626b2b9369950b21edcf89e92167280803fbe"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/ecmascript_toy-a3b41c4b99e4aea3
[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" "a313a87b467d41551440c969d9c626b2b9369950b21edcf89e92167280803fbe"`
[INFO] running `"docker" "rm" "-f" "a313a87b467d41551440c969d9c626b2b9369950b21edcf89e92167280803fbe"`
[INFO] [stdout] a313a87b467d41551440c969d9c626b2b9369950b21edcf89e92167280803fbe