[INFO] crate taikai 0.1.0 is already in cache
[INFO] checking taikai-0.1.0 against try#8c9c32a8d64d42555e366eecb0f0f2f23e15e3db for pr-63831
[INFO] extracting crate taikai 0.1.0 into work/builds/worker-4/source
[INFO] validating manifest of crates.io crate taikai 0.1.0 on toolchain 8c9c32a8d64d42555e366eecb0f0f2f23e15e3db
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+8c9c32a8d64d42555e366eecb0f0f2f23e15e3db" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate taikai 0.1.0
[INFO] finished tweaking crates.io crate taikai 0.1.0
[INFO] tweaked toml for crates.io crate taikai 0.1.0 written to work/builds/worker-4/source/Cargo.toml
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+8c9c32a8d64d42555e366eecb0f0f2f23e15e3db" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+8c9c32a8d64d42555e366eecb0f0f2f23e15e3db" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+8c9c32a8d64d42555e366eecb0f0f2f23e15e3db" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 13b4b0f79267ece1cedebeef1c505cdc1cc197a307aaf3acba5bac8c0d0ba0b5
[INFO] running `"docker" "start" "-a" "13b4b0f79267ece1cedebeef1c505cdc1cc197a307aaf3acba5bac8c0d0ba0b5"`
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]    Compiling encoding_rs v0.8.20
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling linked-hash-map v0.5.2
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling rustc-demangle v0.1.16
[INFO] [stderr]    Compiling dtoa v0.4.4
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling unicode-segmentation v1.3.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking tuple_utils v0.3.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling yaml-rust v0.4.3
[INFO] [stderr]    Compiling itertools v0.7.11
[INFO] [stderr]     Checking proc-macro2 v0.4.30
[INFO] [stderr]     Checking heck v0.3.1
[INFO] [stderr]     Checking quote v0.6.13
[INFO] [stderr]    Compiling backtrace v0.3.38
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]     Checking serde_yaml v0.8.11
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]     Checking taikai v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `path`
[INFO] [stderr]    --> src/type_spec.rs:134:36
[INFO] [stderr]     |
[INFO] [stderr] 134 |     pub fn resolve_enum(&self, mut path: Vec<&str>) -> Enum {
[INFO] [stderr]     |                                    ^^^^ help: consider prefixing with an underscore: `_path`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/attribute.rs:212:43
[INFO] [stderr]     |
[INFO] [stderr] 212 |         let read_scalar = if let Some(ref e) = self.enum_ {
[INFO] [stderr]     |                                           ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `path`
[INFO] [stderr]    --> src/type_spec.rs:134:36
[INFO] [stderr]     |
[INFO] [stderr] 134 |     pub fn resolve_enum(&self, mut path: Vec<&str>) -> Enum {
[INFO] [stderr]     |                                    ^^^^ help: consider prefixing with an underscore: `_path`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/attribute.rs:212:43
[INFO] [stderr]     |
[INFO] [stderr] 212 |         let read_scalar = if let Some(ref e) = self.enum_ {
[INFO] [stderr]     |                                           ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/type_spec.rs:134:32
[INFO] [stderr]     |
[INFO] [stderr] 134 |     pub fn resolve_enum(&self, mut path: Vec<&str>) -> Enum {
[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/type_spec.rs:134:32
[INFO] [stderr]     |
[INFO] [stderr] 134 |     pub fn resolve_enum(&self, mut path: Vec<&str>) -> Enum {
[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: unused variable: `path`
[INFO] [stderr]    --> src/type_spec.rs:134:36
[INFO] [stderr]     |
[INFO] [stderr] 134 |     pub fn resolve_enum(&self, mut path: Vec<&str>) -> Enum {
[INFO] [stderr]     |                                    ^^^^ help: consider prefixing with an underscore: `_path`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/attribute.rs:212:43
[INFO] [stderr]     |
[INFO] [stderr] 212 |         let read_scalar = if let Some(ref e) = self.enum_ {
[INFO] [stderr]     |                                           ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/type_spec.rs:134:32
[INFO] [stderr]     |
[INFO] [stderr] 134 |     pub fn resolve_enum(&self, mut path: Vec<&str>) -> Enum {
[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]     Finished dev [unoptimized + debuginfo] target(s) in 1m 38s
[INFO] running `"docker" "inspect" "13b4b0f79267ece1cedebeef1c505cdc1cc197a307aaf3acba5bac8c0d0ba0b5"`
[INFO] running `"docker" "rm" "-f" "13b4b0f79267ece1cedebeef1c505cdc1cc197a307aaf3acba5bac8c0d0ba0b5"`
[INFO] [stdout] 13b4b0f79267ece1cedebeef1c505cdc1cc197a307aaf3acba5bac8c0d0ba0b5