[INFO] cloning repository https://github.com/eduidl/rust-ffi-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/eduidl/rust-ffi-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feduidl%2Frust-ffi-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feduidl%2Frust-ffi-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 55ae75112855ce81fc0f31ae21f4317f5942ab90
[INFO] testing eduidl/rust-ffi-example against master#ebf0cf75d368c035f4c7e7246d203bd469ee4a51 for pr-137940-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feduidl%2Frust-ffi-example" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/eduidl/rust-ffi-example on toolchain ebf0cf75d368c035f4c7e7246d203bd469ee4a51
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/eduidl/rust-ffi-example
[INFO] finished tweaking git repo https://github.com/eduidl/rust-ffi-example
[INFO] tweaked toml for git repo https://github.com/eduidl/rust-ffi-example written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/eduidl/rust-ffi-example 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" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
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[INFO] [stderr]   Downloaded glob v0.3.0
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 222df641f961e4556dcc35ecab84aa5d96fbf0f1a3b49339eae973830da79b0c
[INFO] running `Command { std: "docker" "start" "-a" "222df641f961e4556dcc35ecab84aa5d96fbf0f1a3b49339eae973830da79b0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "222df641f961e4556dcc35ecab84aa5d96fbf0f1a3b49339eae973830da79b0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "222df641f961e4556dcc35ecab84aa5d96fbf0f1a3b49339eae973830da79b0c", kill_on_drop: false }`
[INFO] [stdout] 222df641f961e4556dcc35ecab84aa5d96fbf0f1a3b49339eae973830da79b0c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e9f31413d5259ca4f282515b0024ea88aae76ddaaf0c7633fc10fa6980c7833e
[INFO] running `Command { std: "docker" "start" "-a" "e9f31413d5259ca4f282515b0024ea88aae76ddaaf0c7633fc10fa6980c7833e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling regex-syntax v0.6.26
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling hashbrown v0.12.1
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling termcolor v1.1.3
[INFO] [stderr]    Compiling clang-sys v1.3.3
[INFO] [stderr]    Compiling indexmap v1.9.0
[INFO] [stderr]    Compiling os_str_bytes v6.1.0
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling libloading v0.7.3
[INFO] [stderr]    Compiling clap_lex v0.2.2
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling nom v7.1.1
[INFO] [stderr]    Compiling bindgen v0.60.1
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling textwrap v0.15.0
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling which v4.2.5
[INFO] [stderr]    Compiling shlex v1.1.0
[INFO] [stderr]    Compiling clap v3.2.5
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling c_vec v2.0.0
[INFO] [stderr]    Compiling regex v1.5.6
[INFO] [stderr]    Compiling cexpr v0.6.0
[INFO] [stderr]    Compiling env_logger v0.9.0
[INFO] [stderr]    Compiling ffi-example-sys v0.1.0 (/opt/rustwide/workdir/ffi-example-sys)
[INFO] [stderr]    Compiling ffi-example v0.1.0 (/opt/rustwide/workdir/ffi-example)
[INFO] [stdout] warning: lint `temporary_cstring_as_ptr` has been renamed to `dangling_pointers_from_temporaries`
[INFO] [stdout]   --> ffi-example/src/main.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |     #[allow(temporary_cstring_as_ptr)]
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `dangling_pointers_from_temporaries`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> ffi-example/src/main.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 |     drop(slice);
[INFO] [stdout]    |     ^^^^^-----^
[INFO] [stdout]    |          |
[INFO] [stdout]    |          argument has type `&[i32]`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 47 -     drop(slice);
[INFO] [stdout] 47 +     let _ = slice;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 30.43s
[INFO] running `Command { std: "docker" "inspect" "e9f31413d5259ca4f282515b0024ea88aae76ddaaf0c7633fc10fa6980c7833e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9f31413d5259ca4f282515b0024ea88aae76ddaaf0c7633fc10fa6980c7833e", kill_on_drop: false }`
[INFO] [stdout] e9f31413d5259ca4f282515b0024ea88aae76ddaaf0c7633fc10fa6980c7833e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0b093acead8153fc6a58e18cbf7a25eb239b7232053d6c194db807c318915684
[INFO] running `Command { std: "docker" "start" "-a" "0b093acead8153fc6a58e18cbf7a25eb239b7232053d6c194db807c318915684", kill_on_drop: false }`
[INFO] [stderr]    Compiling ffi-example-sys v0.1.0 (/opt/rustwide/workdir/ffi-example-sys)
[INFO] [stderr]    Compiling ffi-example v0.1.0 (/opt/rustwide/workdir/ffi-example)
[INFO] [stdout] warning: lint `temporary_cstring_as_ptr` has been renamed to `dangling_pointers_from_temporaries`
[INFO] [stdout]   --> ffi-example/src/main.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |     #[allow(temporary_cstring_as_ptr)]
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `dangling_pointers_from_temporaries`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> ffi-example/src/main.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 |     drop(slice);
[INFO] [stdout]    |     ^^^^^-----^
[INFO] [stdout]    |          |
[INFO] [stdout]    |          argument has type `&[i32]`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 47 -     drop(slice);
[INFO] [stdout] 47 +     let _ = slice;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `Command { std: "docker" "inspect" "0b093acead8153fc6a58e18cbf7a25eb239b7232053d6c194db807c318915684", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b093acead8153fc6a58e18cbf7a25eb239b7232053d6c194db807c318915684", kill_on_drop: false }`
[INFO] [stdout] 0b093acead8153fc6a58e18cbf7a25eb239b7232053d6c194db807c318915684
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 17e27975406e743efa54cf49db9a1c08e549de7f8019697bc6e2e8f7f211c459
[INFO] running `Command { std: "docker" "start" "-a" "17e27975406e743efa54cf49db9a1c08e549de7f8019697bc6e2e8f7f211c459", kill_on_drop: false }`
[INFO] [stderr] warning: lint `temporary_cstring_as_ptr` has been renamed to `dangling_pointers_from_temporaries`
[INFO] [stderr]   --> ffi-example/src/main.rs:20:13
[INFO] [stderr]    |
[INFO] [stderr] 20 |     #[allow(temporary_cstring_as_ptr)]
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `dangling_pointers_from_temporaries`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]   --> ffi-example/src/main.rs:47:5
[INFO] [stderr]    |
[INFO] [stderr] 47 |     drop(slice);
[INFO] [stderr]    |     ^^^^^-----^
[INFO] [stderr]    |          |
[INFO] [stderr]    |          argument has type `&[i32]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dropping_references)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the expression or result
[INFO] [stderr]    |
[INFO] [stderr] 47 -     drop(slice);
[INFO] [stderr] 47 +     let _ = slice;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: `ffi-example` (bin "ffi-example" test) generated 2 warnings (run `cargo fix --bin "ffi-example" --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/ffi_example-3c7e3adf0d68a12e)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/ffi_example_sys-0d1443a7eb26a48c)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test bindgen_test_layout_max_align_t ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ffi_example_sys
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "17e27975406e743efa54cf49db9a1c08e549de7f8019697bc6e2e8f7f211c459", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17e27975406e743efa54cf49db9a1c08e549de7f8019697bc6e2e8f7f211c459", kill_on_drop: false }`
[INFO] [stdout] 17e27975406e743efa54cf49db9a1c08e549de7f8019697bc6e2e8f7f211c459