[INFO] updating cached repository vssn/yew-counter-sample
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/vssn/yew-counter-sample
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/vssn/yew-counter-sample" "work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/vssn/yew-counter-sample"`
[INFO] [stderr] Cloning into 'work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/vssn/yew-counter-sample'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/vssn/yew-counter-sample" "work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/vssn/yew-counter-sample"`
[INFO] [stderr] Cloning into 'work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/vssn/yew-counter-sample'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2a501dcbe7d0043067bf88dabf95a6f805fa9fb3
[INFO] sha for GitHub repo vssn/yew-counter-sample: 2a501dcbe7d0043067bf88dabf95a6f805fa9fb3
[INFO] validating manifest of vssn/yew-counter-sample on toolchain master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of vssn/yew-counter-sample on toolchain try#18481b65f318e0b4b20c0fc61340054701719d6c
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing vssn/yew-counter-sample
[INFO] removed path dependency yew from vssn/yew-counter-sample
[INFO] finished frobbing vssn/yew-counter-sample
[INFO] frobbed toml for vssn/yew-counter-sample written to work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/vssn/yew-counter-sample/Cargo.toml
[INFO] started frobbing vssn/yew-counter-sample
[INFO] removed path dependency yew from vssn/yew-counter-sample
[INFO] finished frobbing vssn/yew-counter-sample
[INFO] frobbed toml for vssn/yew-counter-sample written to work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/vssn/yew-counter-sample/Cargo.toml
[INFO] crate vssn/yew-counter-sample already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking vssn/yew-counter-sample against master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7 for pr-62507
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62507/worker-5/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/vssn/yew-counter-sample:/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" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] cc2e6c631bfb7247285c1973279ec441cc7ac00966766e276523e22f5f0bd220
[INFO] running `"docker" "start" "-a" "cc2e6c631bfb7247285c1973279ec441cc7ac00966766e276523e22f5f0bd220"`
[INFO] [stderr]    Compiling stdweb-internal-runtime v0.1.3
[INFO] [stderr]    Compiling base-x v0.2.4
[INFO] [stderr]    Compiling sha1 v0.6.0
[INFO] [stderr]     Checking discard v1.0.4
[INFO] [stderr]     Checking anymap v0.12.1
[INFO] [stderr]     Checking strum v0.9.0
[INFO] [stderr]    Compiling backtrace v0.3.13
[INFO] [stderr]    Compiling serde v1.0.84
[INFO] [stderr]     Checking serde_json v1.0.35
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking bincode v1.0.1
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking backtrace-sys v0.1.28
[INFO] [stderr]    Compiling stdweb v0.4.13
[INFO] [stderr]    Compiling syn v0.15.24
[INFO] [stderr]     Checking bytes v0.4.11
[INFO] [stderr]    Compiling strum_macros v0.9.1
[INFO] [stderr]     Checking http v0.1.14
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling serde_derive v1.0.84
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]    Compiling stdweb-derive v0.5.1
[INFO] [stderr]    Compiling stdweb-internal-macros v0.2.5
[INFO] [stderr]     Checking yew v0.5.0 (https://github.com/DenisKolodin/yew#886e63da)
[INFO] [stderr]     Checking yew-counter-sample v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/lib.rs:51:64
[INFO] [stderr]    |
[INFO] [stderr] 51 |                         for (0..self.counter).into_iter().map(|x| {
[INFO] [stderr]    |                                                                ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/lib.rs:51:64
[INFO] [stderr]    |
[INFO] [stderr] 51 |                         for (0..self.counter).into_iter().map(|x| {
[INFO] [stderr]    |                                                                ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 49s
[INFO] running `"docker" "inspect" "cc2e6c631bfb7247285c1973279ec441cc7ac00966766e276523e22f5f0bd220"`
[INFO] running `"docker" "rm" "-f" "cc2e6c631bfb7247285c1973279ec441cc7ac00966766e276523e22f5f0bd220"`
[INFO] [stdout] cc2e6c631bfb7247285c1973279ec441cc7ac00966766e276523e22f5f0bd220