[INFO] cloning repository https://github.com/liuyanghejerry/rust-wasm-size-bug
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/liuyanghejerry/rust-wasm-size-bug" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fliuyanghejerry%2Frust-wasm-size-bug", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fliuyanghejerry%2Frust-wasm-size-bug'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1b6c87c0b542407afcb963afbdf0a295c281d184
[INFO] checking liuyanghejerry/rust-wasm-size-bug against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fliuyanghejerry%2Frust-wasm-size-bug" "/workspace/builds/worker-55/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-55/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/liuyanghejerry/rust-wasm-size-bug on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/liuyanghejerry/rust-wasm-size-bug
[INFO] finished tweaking git repo https://github.com/liuyanghejerry/rust-wasm-size-bug
[INFO] tweaked toml for git repo https://github.com/liuyanghejerry/rust-wasm-size-bug written to /workspace/builds/worker-55/source/Cargo.toml
[INFO] crate git repo https://github.com/liuyanghejerry/rust-wasm-size-bug already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a5d0593e4588a183c2db6e7a5528ecf5fd107bdef9ee8e937720caa578bebe4e
[INFO] running `Command { std: "docker" "start" "-a" "a5d0593e4588a183c2db6e7a5528ecf5fd107bdef9ee8e937720caa578bebe4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a5d0593e4588a183c2db6e7a5528ecf5fd107bdef9ee8e937720caa578bebe4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5d0593e4588a183c2db6e7a5528ecf5fd107bdef9ee8e937720caa578bebe4e", kill_on_drop: false }`
[INFO] [stdout] a5d0593e4588a183c2db6e7a5528ecf5fd107bdef9ee8e937720caa578bebe4e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ab051c2bc8eea81add65def4cd042e7d89a89de175c0d4f3eff93d7ecc266473
[INFO] running `Command { std: "docker" "start" "-a" "ab051c2bc8eea81add65def4cd042e7d89a89de175c0d4f3eff93d7ecc266473", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking wasm-size-bug v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]  --> src/lib.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let buf : &[u8] = std::slice::from_raw_parts(ptr, length as usize);
[INFO] [stdout]   |         ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]  --> src/lib.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let buf : &[u8] = std::slice::from_raw_parts(ptr, length as usize);
[INFO] [stdout]   |         ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "ab051c2bc8eea81add65def4cd042e7d89a89de175c0d4f3eff93d7ecc266473", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab051c2bc8eea81add65def4cd042e7d89a89de175c0d4f3eff93d7ecc266473", kill_on_drop: false }`
[INFO] [stdout] ab051c2bc8eea81add65def4cd042e7d89a89de175c0d4f3eff93d7ecc266473