[INFO] fetching crate libtar-sys 0.1.9...
[INFO] checking libtar-sys-0.1.9 against master#f82664191d0e8764b7435b9d72eb0e366b8b1464 for pr-83354
[INFO] extracting crate libtar-sys 0.1.9 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate libtar-sys 0.1.9 on toolchain f82664191d0e8764b7435b9d72eb0e366b8b1464
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "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-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "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" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e4f9a877ed5f00bb499194a91ff0e306c55ae479a257d27f4f97abac4ae4ee1e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e4f9a877ed5f00bb499194a91ff0e306c55ae479a257d27f4f97abac4ae4ee1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e4f9a877ed5f00bb499194a91ff0e306c55ae479a257d27f4f97abac4ae4ee1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4f9a877ed5f00bb499194a91ff0e306c55ae479a257d27f4f97abac4ae4ee1e", kill_on_drop: false }`
[INFO] [stdout] e4f9a877ed5f00bb499194a91ff0e306c55ae479a257d27f4f97abac4ae4ee1e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 716df13097ed13ef62d8708a34a163a9a87a16fbf3f07ccfd2158c8ff168d9ad
[INFO] running `Command { std: "docker" "start" "-a" "716df13097ed13ef62d8708a34a163a9a87a16fbf3f07ccfd2158c8ff168d9ad", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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: `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: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.51s
[INFO] running `Command { std: "docker" "inspect" "716df13097ed13ef62d8708a34a163a9a87a16fbf3f07ccfd2158c8ff168d9ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "716df13097ed13ef62d8708a34a163a9a87a16fbf3f07ccfd2158c8ff168d9ad", kill_on_drop: false }`
[INFO] [stdout] 716df13097ed13ef62d8708a34a163a9a87a16fbf3f07ccfd2158c8ff168d9ad