[INFO] updating cached repository liuyanghejerry/rust-wasm-size-bug
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/liuyanghejerry/rust-wasm-size-bug
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/liuyanghejerry/rust-wasm-size-bug" "work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/liuyanghejerry/rust-wasm-size-bug"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/liuyanghejerry/rust-wasm-size-bug'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/liuyanghejerry/rust-wasm-size-bug" "work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/liuyanghejerry/rust-wasm-size-bug"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/liuyanghejerry/rust-wasm-size-bug'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7f77930eea9150e3c1aace45ba838b201e6af730
[INFO] sha for GitHub repo liuyanghejerry/rust-wasm-size-bug: 7f77930eea9150e3c1aace45ba838b201e6af730
[INFO] validating manifest of liuyanghejerry/rust-wasm-size-bug on toolchain master#c43d03a19f326f4a323569328cc501e86eb6d22e
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of liuyanghejerry/rust-wasm-size-bug on toolchain try#75eff020d0923c035c2fe220db4a0465cd847048
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing liuyanghejerry/rust-wasm-size-bug
[INFO] finished frobbing liuyanghejerry/rust-wasm-size-bug
[INFO] frobbed toml for liuyanghejerry/rust-wasm-size-bug written to work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/liuyanghejerry/rust-wasm-size-bug/Cargo.toml
[INFO] started frobbing liuyanghejerry/rust-wasm-size-bug
[INFO] finished frobbing liuyanghejerry/rust-wasm-size-bug
[INFO] frobbed toml for liuyanghejerry/rust-wasm-size-bug written to work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/liuyanghejerry/rust-wasm-size-bug/Cargo.toml
[INFO] crate liuyanghejerry/rust-wasm-size-bug already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking liuyanghejerry/rust-wasm-size-bug against master#c43d03a19f326f4a323569328cc501e86eb6d22e for pr-63565
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63565/worker-7/master#c43d03a19f326f4a323569328cc501e86eb6d22e:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/liuyanghejerry/rust-wasm-size-bug:/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" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 0b22084d8a029e9a5be06194f453d8cc7591a1c2a3307b705f1093904e10fb9b
[INFO] running `"docker" "start" "-a" "0b22084d8a029e9a5be06194f453d8cc7591a1c2a3307b705f1093904e10fb9b"`
[INFO] [stderr]     Checking wasm-size-bug v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `buf`
[INFO] [stderr]  --> src/lib.rs:4:9
[INFO] [stderr]   |
[INFO] [stderr] 4 |     let buf : &[u8] = std::slice::from_raw_parts(ptr, length as usize);
[INFO] [stderr]   |         ^^^ help: consider prefixing with an underscore: `_buf`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `buf`
[INFO] [stderr]  --> src/lib.rs:4:9
[INFO] [stderr]   |
[INFO] [stderr] 4 |     let buf : &[u8] = std::slice::from_raw_parts(ptr, length as usize);
[INFO] [stderr]   |         ^^^ help: consider prefixing with an underscore: `_buf`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `"docker" "inspect" "0b22084d8a029e9a5be06194f453d8cc7591a1c2a3307b705f1093904e10fb9b"`
[INFO] running `"docker" "rm" "-f" "0b22084d8a029e9a5be06194f453d8cc7591a1c2a3307b705f1093904e10fb9b"`
[INFO] [stdout] 0b22084d8a029e9a5be06194f453d8cc7591a1c2a3307b705f1093904e10fb9b