[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/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/alexeyden/ecmascript_toy"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/alexeyden/ecmascript_toy'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/alexeyden/ecmascript_toy" "work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/gh/alexeyden/ecmascript_toy"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/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 master#efe2f32a6b8217425f361ec7c206910c611c03ee
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of alexeyden/ecmascript_toy on toolchain try#78b0bd8441ef961f6475e3d47fe3bca38cb83432
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78b0bd8441ef961f6475e3d47fe3bca38cb83432-alt" "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/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/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/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/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" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78b0bd8441ef961f6475e3d47fe3bca38cb83432-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking alexeyden/ecmascript_toy against try#78b0bd8441ef961f6475e3d47fe3bca38cb83432 for pr-60039
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039/worker-6/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/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=forbid" "-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" "+78b0bd8441ef961f6475e3d47fe3bca38cb83432-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] b8dc666bedabe37aa35ad972165d3999f30d1154f54997ec120c5c91f6ed8c9f
[INFO] running `"docker" "start" "-a" "b8dc666bedabe37aa35ad972165d3999f30d1154f54997ec120c5c91f6ed8c9f"`
[INFO] [stderr]     Checking 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] 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 1.56s
[INFO] running `"docker" "inspect" "b8dc666bedabe37aa35ad972165d3999f30d1154f54997ec120c5c91f6ed8c9f"`
[INFO] running `"docker" "rm" "-f" "b8dc666bedabe37aa35ad972165d3999f30d1154f54997ec120c5c91f6ed8c9f"`
[INFO] [stdout] b8dc666bedabe37aa35ad972165d3999f30d1154f54997ec120c5c91f6ed8c9f