[INFO] cloning repository https://github.com/dsgriffin/freefare-sys
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dsgriffin/freefare-sys" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdsgriffin%2Ffreefare-sys", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdsgriffin%2Ffreefare-sys'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4163cc10b30e0988acae3fc335709ae16cfa14f5
[INFO] checking dsgriffin/freefare-sys against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdsgriffin%2Ffreefare-sys" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dsgriffin/freefare-sys on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dsgriffin/freefare-sys
[INFO] finished tweaking git repo https://github.com/dsgriffin/freefare-sys
[INFO] tweaked toml for git repo https://github.com/dsgriffin/freefare-sys written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/dsgriffin/freefare-sys already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 108d838cf6fc54fd1177ab380e1b4341296e790bf054e45f08d40130729a4c59
[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" "108d838cf6fc54fd1177ab380e1b4341296e790bf054e45f08d40130729a4c59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "108d838cf6fc54fd1177ab380e1b4341296e790bf054e45f08d40130729a4c59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "108d838cf6fc54fd1177ab380e1b4341296e790bf054e45f08d40130729a4c59", kill_on_drop: false }`
[INFO] [stdout] 108d838cf6fc54fd1177ab380e1b4341296e790bf054e45f08d40130729a4c59
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "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] 76ae4d881e613085efa9e9263615c09b4f1f4960331cdf3d521599d14e4ed482
[INFO] running `Command { std: "docker" "start" "-a" "76ae4d881e613085efa9e9263615c09b4f1f4960331cdf3d521599d14e4ed482", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking libc v0.2.17
[INFO] [stderr]     Checking nfc-sys v0.1.5
[INFO] [stderr]     Checking freefare-sys v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `extern` block uses type `[u8; 4]`, which is not FFI-safe
[INFO] [stdout]    --> src/lib.rs:290:15
[INFO] [stdout]     |
[INFO] [stdout] 290 |         data: MifareUltralightPage,
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(improper_ctypes)]` on by default
[INFO] [stdout]     = help: consider passing a pointer to the array
[INFO] [stdout]     = note: passing raw arrays by value is not FFI-safe
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `[u8; 6]`, which is not FFI-safe
[INFO] [stdout]    --> src/lib.rs:309:14
[INFO] [stdout]     |
[INFO] [stdout] 309 |         key: MifareClassicKey,
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider passing a pointer to the array
[INFO] [stdout]     = note: passing raw arrays by value is not FFI-safe
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `[u8; 16]`, which is not FFI-safe
[INFO] [stdout]    --> src/lib.rs:332:15
[INFO] [stdout]     |
[INFO] [stdout] 332 |         data: MifareClassicBlock,
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider passing a pointer to the array
[INFO] [stdout]     = note: passing raw arrays by value is not FFI-safe
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `[u8; 6]`, which is not FFI-safe
[INFO] [stdout]    --> src/lib.rs:370:16
[INFO] [stdout]     |
[INFO] [stdout] 370 |         key_a: MifareClassicKey,
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider passing a pointer to the array
[INFO] [stdout]     = note: passing raw arrays by value is not FFI-safe
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `[u8; 6]`, which is not FFI-safe
[INFO] [stdout]    --> src/lib.rs:376:16
[INFO] [stdout]     |
[INFO] [stdout] 376 |         key_b: MifareClassicKey,
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider passing a pointer to the array
[INFO] [stdout]     = note: passing raw arrays by value is not FFI-safe
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `[u8; 6]`, which is not FFI-safe
[INFO] [stdout]    --> src/lib.rs:393:26
[INFO] [stdout]     |
[INFO] [stdout] 393 |         key_b_sector_00: MifareClassicKey,
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider passing a pointer to the array
[INFO] [stdout]     = note: passing raw arrays by value is not FFI-safe
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `[u8; 6]`, which is not FFI-safe
[INFO] [stdout]    --> src/lib.rs:394:26
[INFO] [stdout]     |
[INFO] [stdout] 394 |         key_b_sector_10: MifareClassicKey,
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider passing a pointer to the array
[INFO] [stdout]     = note: passing raw arrays by value is not FFI-safe
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `[u8; 6]`, which is not FFI-safe
[INFO] [stdout]    --> src/lib.rs:426:14
[INFO] [stdout]     |
[INFO] [stdout] 426 |         key: MifareClassicKey,
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider passing a pointer to the array
[INFO] [stdout]     = note: passing raw arrays by value is not FFI-safe
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `[u8; 6]`, which is not FFI-safe
[INFO] [stdout]    --> src/lib.rs:435:14
[INFO] [stdout]     |
[INFO] [stdout] 435 |         key: MifareClassicKey,
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider passing a pointer to the array
[INFO] [stdout]     = note: passing raw arrays by value is not FFI-safe
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `[u8; 4]`, which is not FFI-safe
[INFO] [stdout]    --> src/lib.rs:290:15
[INFO] [stdout]     |
[INFO] [stdout] 290 |         data: MifareUltralightPage,
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(improper_ctypes)]` on by default
[INFO] [stdout]     = help: consider passing a pointer to the array
[INFO] [stdout]     = note: passing raw arrays by value is not FFI-safe
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `[u8; 6]`, which is not FFI-safe
[INFO] [stdout]    --> src/lib.rs:309:14
[INFO] [stdout]     |
[INFO] [stdout] 309 |         key: MifareClassicKey,
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider passing a pointer to the array
[INFO] [stdout]     = note: passing raw arrays by value is not FFI-safe
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `[u8; 16]`, which is not FFI-safe
[INFO] [stdout]    --> src/lib.rs:332:15
[INFO] [stdout]     |
[INFO] [stdout] 332 |         data: MifareClassicBlock,
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider passing a pointer to the array
[INFO] [stdout]     = note: passing raw arrays by value is not FFI-safe
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `[u8; 6]`, which is not FFI-safe
[INFO] [stdout]    --> src/lib.rs:370:16
[INFO] [stdout]     |
[INFO] [stdout] 370 |         key_a: MifareClassicKey,
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider passing a pointer to the array
[INFO] [stdout]     = note: passing raw arrays by value is not FFI-safe
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `[u8; 6]`, which is not FFI-safe
[INFO] [stdout]    --> src/lib.rs:376:16
[INFO] [stdout]     |
[INFO] [stdout] 376 |         key_b: MifareClassicKey,
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider passing a pointer to the array
[INFO] [stdout]     = note: passing raw arrays by value is not FFI-safe
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `[u8; 6]`, which is not FFI-safe
[INFO] [stdout]    --> src/lib.rs:393:26
[INFO] [stdout]     |
[INFO] [stdout] 393 |         key_b_sector_00: MifareClassicKey,
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider passing a pointer to the array
[INFO] [stdout]     = note: passing raw arrays by value is not FFI-safe
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `[u8; 6]`, which is not FFI-safe
[INFO] [stdout]    --> src/lib.rs:394:26
[INFO] [stdout]     |
[INFO] [stdout] 394 |         key_b_sector_10: MifareClassicKey,
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider passing a pointer to the array
[INFO] [stdout]     = note: passing raw arrays by value is not FFI-safe
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `[u8; 6]`, which is not FFI-safe
[INFO] [stdout]    --> src/lib.rs:426:14
[INFO] [stdout]     |
[INFO] [stdout] 426 |         key: MifareClassicKey,
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider passing a pointer to the array
[INFO] [stdout]     = note: passing raw arrays by value is not FFI-safe
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `[u8; 6]`, which is not FFI-safe
[INFO] [stdout]    --> src/lib.rs:435:14
[INFO] [stdout]     |
[INFO] [stdout] 435 |         key: MifareClassicKey,
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider passing a pointer to the array
[INFO] [stdout]     = note: passing raw arrays by value is not FFI-safe
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.15s
[INFO] running `Command { std: "docker" "inspect" "76ae4d881e613085efa9e9263615c09b4f1f4960331cdf3d521599d14e4ed482", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76ae4d881e613085efa9e9263615c09b4f1f4960331cdf3d521599d14e4ed482", kill_on_drop: false }`
[INFO] [stdout] 76ae4d881e613085efa9e9263615c09b4f1f4960331cdf3d521599d14e4ed482