[INFO] fetching crate jni-mangle 0.1.2...
[INFO] checking jni-mangle-0.1.2 against master#a3f76a26e045a760bb1163b7eab36872985242d5 for pr-130930
[INFO] extracting crate jni-mangle 0.1.2 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate jni-mangle 0.1.2 on toolchain a3f76a26e045a760bb1163b7eab36872985242d5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a3f76a26e045a760bb1163b7eab36872985242d5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate jni-mangle 0.1.2
[INFO] finished tweaking crates.io crate jni-mangle 0.1.2
[INFO] tweaked toml for crates.io crate jni-mangle 0.1.2 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate jni-mangle 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a3f76a26e045a760bb1163b7eab36872985242d5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+a3f76a26e045a760bb1163b7eab36872985242d5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1affc6690e1351b8f71969bb89a37d2996186c78d7d4ab2f982ae62c4566998a
[INFO] running `Command { std: "docker" "start" "-a" "1affc6690e1351b8f71969bb89a37d2996186c78d7d4ab2f982ae62c4566998a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1affc6690e1351b8f71969bb89a37d2996186c78d7d4ab2f982ae62c4566998a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1affc6690e1351b8f71969bb89a37d2996186c78d7d4ab2f982ae62c4566998a", kill_on_drop: false }`
[INFO] [stdout] 1affc6690e1351b8f71969bb89a37d2996186c78d7d4ab2f982ae62c4566998a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+a3f76a26e045a760bb1163b7eab36872985242d5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 65a4178c4521d1ccd7832177a3d845be8d174e9a63853c1b3dccfd1b842624fd
[INFO] running `Command { std: "docker" "start" "-a" "65a4178c4521d1ccd7832177a3d845be8d174e9a63853c1b3dccfd1b842624fd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]     Checking memchr v2.6.3
[INFO] [stderr]     Checking regex-syntax v0.7.5
[INFO] [stderr]    Compiling aho-corasick v1.0.5
[INFO] [stderr]     Checking quote v1.0.33
[INFO] [stderr]     Checking syn v2.0.31
[INFO] [stderr]     Checking regex-automata v0.3.8
[INFO] [stderr]     Checking darling_core v0.20.3
[INFO] [stderr]     Checking regex v1.9.5
[INFO] [stderr]    Compiling darling_macro v0.20.3
[INFO] [stderr]     Checking darling v0.20.3
[INFO] [stderr]    Compiling jni-mangle v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `syn::Block`
[INFO] [stdout]  --> src/lib.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use syn::Block;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `syn::Block`
[INFO] [stdout]  --> src/lib.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use syn::Block;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `syn::Block`
[INFO] [stdout]  --> src/lib.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use syn::Block;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` 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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: functions generic over types or consts must be mangled
[INFO] [stdout]   --> examples/example.rs:26:1
[INFO] [stdout]    |
[INFO] [stdout] 25 |   #[mangle(package = "com.example", class = "Example")]
[INFO] [stdout]    |   ----------------------------------------------------- help: remove this attribute
[INFO] [stdout] 26 | / pub fn test_fn<'a, T>(var: &'a T) -> String
[INFO] [stdout] 27 | | where
[INFO] [stdout] 28 | |     T: ToString,
[INFO] [stdout] 29 | | {
[INFO] [stdout] 30 | |     format!("test_fn({})", var.to_string())
[INFO] [stdout] 31 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(no_mangle_generic_items)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `String`, which is not FFI-safe
[INFO] [stdout]   --> examples/example.rs:26:38
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub fn test_fn<'a, T>(var: &'a T) -> String
[INFO] [stdout]    |                                      ^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]    = note: this struct has unspecified layout
[INFO] [stdout]    = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 28.70s
[INFO] running `Command { std: "docker" "inspect" "65a4178c4521d1ccd7832177a3d845be8d174e9a63853c1b3dccfd1b842624fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65a4178c4521d1ccd7832177a3d845be8d174e9a63853c1b3dccfd1b842624fd", kill_on_drop: false }`
[INFO] [stdout] 65a4178c4521d1ccd7832177a3d845be8d174e9a63853c1b3dccfd1b842624fd