[INFO] fetching crate libtar-sys 0.1.9...
[INFO] checking libtar-sys-0.1.9 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] extracting crate libtar-sys 0.1.9 into /workspace/builds/worker-65/source
[INFO] validating manifest of crates.io crate libtar-sys 0.1.9 on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libtar-sys 0.1.9
[INFO] finished tweaking crates.io crate libtar-sys 0.1.9
[INFO] tweaked toml for crates.io crate libtar-sys 0.1.9 written to /workspace/builds/worker-65/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "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-65/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4ac0e32b7c45dae2cc01fbc2f1a58b1c021e4a3d9137f954b16b7fa0c0073f90
[INFO] running `Command { std: "docker" "start" "-a" "4ac0e32b7c45dae2cc01fbc2f1a58b1c021e4a3d9137f954b16b7fa0c0073f90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4ac0e32b7c45dae2cc01fbc2f1a58b1c021e4a3d9137f954b16b7fa0c0073f90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ac0e32b7c45dae2cc01fbc2f1a58b1c021e4a3d9137f954b16b7fa0c0073f90", kill_on_drop: false }`
[INFO] [stdout] 4ac0e32b7c45dae2cc01fbc2f1a58b1c021e4a3d9137f954b16b7fa0c0073f90
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ea270962e5db799f59108528be09351a3e789aa6b36e3f061b636fd6781caa6a
[INFO] running `Command { std: "docker" "start" "-a" "ea270962e5db799f59108528be09351a3e789aa6b36e3f061b636fd6781caa6a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling libtar-sys v0.1.9 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `extern` block uses type `char`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:50:24
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn tar_open(t: *mut *mut TAR, pathname: *const c_char, typo: *mut c_void,
[INFO] [stdout]    |                        ^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(improper_ctypes)]` on by default
[INFO] [stdout]    = help: consider using `u32` or `libc::wchar_t` instead
[INFO] [stdout]    = note: the `char` type has no C equivalent
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `char`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:53:25
[INFO] [stdout]    |
[INFO] [stdout] 53 |     pub fn tar_close(t: *mut TAR) -> c_int;
[INFO] [stdout]    |                         ^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using `u32` or `libc::wchar_t` instead
[INFO] [stdout]    = note: the `char` type has no C equivalent
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `char`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:55:31
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn tar_extract_all(t: *mut TAR, prefix: *const c_char) -> c_int;
[INFO] [stdout]    |                               ^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using `u32` or `libc::wchar_t` instead
[INFO] [stdout]    = note: the `char` type has no C equivalent
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `char`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:50:24
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn tar_open(t: *mut *mut TAR, pathname: *const c_char, typo: *mut c_void,
[INFO] [stdout]    |                        ^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(improper_ctypes)]` on by default
[INFO] [stdout]    = help: consider using `u32` or `libc::wchar_t` instead
[INFO] [stdout]    = note: the `char` type has no C equivalent
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `char`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:53:25
[INFO] [stdout]    |
[INFO] [stdout] 53 |     pub fn tar_close(t: *mut TAR) -> c_int;
[INFO] [stdout]    |                         ^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using `u32` or `libc::wchar_t` instead
[INFO] [stdout]    = note: the `char` type has no C equivalent
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `char`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:55:31
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn tar_extract_all(t: *mut TAR, prefix: *const c_char) -> c_int;
[INFO] [stdout]    |                               ^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using `u32` or `libc::wchar_t` instead
[INFO] [stdout]    = note: the `char` type has no C equivalent
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.95s
[INFO] running `Command { std: "docker" "inspect" "ea270962e5db799f59108528be09351a3e789aa6b36e3f061b636fd6781caa6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea270962e5db799f59108528be09351a3e789aa6b36e3f061b636fd6781caa6a", kill_on_drop: false }`
[INFO] [stdout] ea270962e5db799f59108528be09351a3e789aa6b36e3f061b636fd6781caa6a