[INFO] cloning repository https://github.com/ssnover/libmodbus-c2rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ssnover/libmodbus-c2rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fssnover%2Flibmodbus-c2rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fssnover%2Flibmodbus-c2rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d6f6de7bbd8252a715c666cf778a80803a7b1051
[INFO] testing ssnover/libmodbus-c2rust against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fssnover%2Flibmodbus-c2rust" "/workspace/builds/worker-25/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-25/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ssnover/libmodbus-c2rust on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ssnover/libmodbus-c2rust
[INFO] finished tweaking git repo https://github.com/ssnover/libmodbus-c2rust
[INFO] tweaked toml for git repo https://github.com/ssnover/libmodbus-c2rust written to /workspace/builds/worker-25/source/Cargo.toml
[INFO] crate git repo https://github.com/ssnover/libmodbus-c2rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 99c0827f2c0dba465faefdfc8057b549065e85d9dc95e130705d17c65756b95b
[INFO] running `Command { std: "docker" "start" "-a" "99c0827f2c0dba465faefdfc8057b549065e85d9dc95e130705d17c65756b95b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "99c0827f2c0dba465faefdfc8057b549065e85d9dc95e130705d17c65756b95b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99c0827f2c0dba465faefdfc8057b549065e85d9dc95e130705d17c65756b95b", kill_on_drop: false }`
[INFO] [stdout] 99c0827f2c0dba465faefdfc8057b549065e85d9dc95e130705d17c65756b95b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e45fdead6c72d694b06ef3367b2f803c0c1ad68ebaed2cfdf48391984486dd7
[INFO] running `Command { std: "docker" "start" "-a" "9e45fdead6c72d694b06ef3367b2f803c0c1ad68ebaed2cfdf48391984486dd7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libmodbus v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/c2rust-lib.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | #![feature(c_variadic)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/c2rust-lib.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | #![feature(extern_types)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/c2rust-lib.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #![feature(label_break_value)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]  --> src/modbus_data.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |       #[no_mangle]
[INFO] [stdout]   |       ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 4 | /     fn memcpy(_: *mut libc::c_void, _: *const libc::c_void, _: libc::c_ulong)
[INFO] [stdout] 5 | |      -> *mut libc::c_void;
[INFO] [stdout]   | |__________________________- foreign function
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]  --> src/modbus_data.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |       #[no_mangle]
[INFO] [stdout]   |       ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 7 | /     fn __assert_fail(__assertion: *const libc::c_char,
[INFO] [stdout] 8 | |                      __file: *const libc::c_char, __line: libc::c_uint,
[INFO] [stdout] 9 | |                      __function: *const libc::c_char) -> !;
[INFO] [stdout]   | |___________________________________________________________- foreign function
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign static
[INFO] [stdout]  --> src/modbus_rtu.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     #[no_mangle]
[INFO] [stdout]   |     ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 7 |     static mut stderr: *mut FILE;
[INFO] [stdout]   |     ----------------------------- foreign static
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]  --> src/modbus_rtu.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     #[no_mangle]
[INFO] [stdout]   |     ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 9 |     fn fprintf(_: *mut FILE, _: *const libc::c_char, _: ...) -> libc::c_int;
[INFO] [stdout]   |     ------------------------------------------------------------------------ foreign function
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus_rtu.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     #[no_mangle]
[INFO] [stdout]    |     ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 11 |     fn printf(_: *const libc::c_char, _: ...) -> libc::c_int;
[INFO] [stdout]    |     --------------------------------------------------------- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus_rtu.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |       #[no_mangle]
[INFO] [stdout]    |       ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 13 | /     fn select(__nfds: libc::c_int, __readfds: *mut fd_set,
[INFO] [stdout] 14 | |               __writefds: *mut fd_set, __exceptfds: *mut fd_set,
[INFO] [stdout] 15 | |               __timeout: *mut timeval) -> libc::c_int;
[INFO] [stdout]    | |______________________________________________________- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus_rtu.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     #[no_mangle]
[INFO] [stdout]    |     ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 17 |     fn malloc(_: libc::c_ulong) -> *mut libc::c_void;
[INFO] [stdout]    |     ------------------------------------------------- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus_rtu.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     #[no_mangle]
[INFO] [stdout]    |     ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 19 |     fn free(_: *mut libc::c_void);
[INFO] [stdout]    |     ------------------------------ foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus_rtu.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     #[no_mangle]
[INFO] [stdout]    |     ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 21 |     fn __errno_location() -> *mut libc::c_int;
[INFO] [stdout]    |     ------------------------------------------ foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus_rtu.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |       #[no_mangle]
[INFO] [stdout]    |       ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 23 | /     fn open(__file: *const libc::c_char, __oflag: libc::c_int, _: ...)
[INFO] [stdout] 24 | |      -> libc::c_int;
[INFO] [stdout]    | |____________________- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus_rtu.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |       #[no_mangle]
[INFO] [stdout]    |       ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 26 | /     fn memset(_: *mut libc::c_void, _: libc::c_int, _: libc::c_ulong)
[INFO] [stdout] 27 | |      -> *mut libc::c_void;
[INFO] [stdout]    | |__________________________- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus_rtu.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |       #[no_mangle]
[INFO] [stdout]    |       ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 29 | /     fn strcpy(_: *mut libc::c_char, _: *const libc::c_char)
[INFO] [stdout] 30 | |      -> *mut libc::c_char;
[INFO] [stdout]    | |__________________________- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus_rtu.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     #[no_mangle]
[INFO] [stdout]    |     ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 32 |     fn strlen(_: *const libc::c_char) -> libc::c_ulong;
[INFO] [stdout]    |     --------------------------------------------------- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus_rtu.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     #[no_mangle]
[INFO] [stdout]    |     ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 34 |     fn strerror(_: libc::c_int) -> *mut libc::c_char;
[INFO] [stdout]    |     ------------------------------------------------- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus_rtu.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     #[no_mangle]
[INFO] [stdout]    |     ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 36 |     fn close(__fd: libc::c_int) -> libc::c_int;
[INFO] [stdout]    |     ------------------------------------------- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus_rtu.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |       #[no_mangle]
[INFO] [stdout]    |       ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 38 | /     fn read(__fd: libc::c_int, __buf: *mut libc::c_void, __nbytes: size_t)
[INFO] [stdout] 39 | |      -> ssize_t;
[INFO] [stdout]    | |________________- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus_rtu.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 |       #[no_mangle]
[INFO] [stdout]    |       ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 41 | /     fn write(__fd: libc::c_int, __buf: *const libc::c_void, __n: size_t)
[INFO] [stdout] 42 | |      -> ssize_t;
[INFO] [stdout]    | |________________- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus_rtu.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 |     #[no_mangle]
[INFO] [stdout]    |     ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 44 |     fn usleep(__useconds: __useconds_t) -> libc::c_int;
[INFO] [stdout]    |     --------------------------------------------------- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus_rtu.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 |       #[no_mangle]
[INFO] [stdout]    |       ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 46 | /     fn __assert_fail(__assertion: *const libc::c_char,
[INFO] [stdout] 47 | |                      __file: *const libc::c_char, __line: libc::c_uint,
[INFO] [stdout] 48 | |                      __function: *const libc::c_char) -> !;
[INFO] [stdout]    | |___________________________________________________________- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus_rtu.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 |     #[no_mangle]
[INFO] [stdout]    |     ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 50 |     fn modbus_free(ctx: *mut modbus_t);
[INFO] [stdout]    |     ----------------------------------- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus_rtu.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 |       #[no_mangle]
[INFO] [stdout]    |       ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 52 | /     fn _modbus_receive_msg(ctx: *mut modbus_t, msg: *mut uint8_t,
[INFO] [stdout] 53 | |                            msg_type: msg_type_t) -> libc::c_int;
[INFO] [stdout]    | |________________________________________________________________- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus_rtu.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 54 |     #[no_mangle]
[INFO] [stdout]    |     ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 55 |     fn _modbus_init_common(ctx: *mut modbus_t);
[INFO] [stdout]    |     ------------------------------------------- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus_rtu.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 56 |       #[no_mangle]
[INFO] [stdout]    |       ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 57 | /     fn tcsetattr(__fd: libc::c_int, __optional_actions: libc::c_int,
[INFO] [stdout] 58 | |                  __termios_p: *const termios) -> libc::c_int;
[INFO] [stdout]    | |_____________________________________________________________- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus_rtu.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 59 |       #[no_mangle]
[INFO] [stdout]    |       ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 60 | /     fn cfsetospeed(__termios_p: *mut termios, __speed: speed_t)
[INFO] [stdout] 61 | |      -> libc::c_int;
[INFO] [stdout]    | |____________________- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus_rtu.rs:62:5
[INFO] [stdout]    |
[INFO] [stdout] 62 |       #[no_mangle]
[INFO] [stdout]    |       ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 63 | /     fn cfsetispeed(__termios_p: *mut termios, __speed: speed_t)
[INFO] [stdout] 64 | |      -> libc::c_int;
[INFO] [stdout]    | |____________________- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus_rtu.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 65 |     #[no_mangle]
[INFO] [stdout]    |     ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 66 |     fn tcgetattr(__fd: libc::c_int, __termios_p: *mut termios) -> libc::c_int;
[INFO] [stdout]    |     -------------------------------------------------------------------------- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus_rtu.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 67 |       #[no_mangle]
[INFO] [stdout]    |       ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 68 | /     fn tcflush(__fd: libc::c_int, __queue_selector: libc::c_int)
[INFO] [stdout] 69 | |      -> libc::c_int;
[INFO] [stdout]    | |____________________- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus_rtu.rs:70:5
[INFO] [stdout]    |
[INFO] [stdout] 70 |       #[no_mangle]
[INFO] [stdout]    |       ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 71 | /     fn ioctl(__fd: libc::c_int, __request: libc::c_ulong, _: ...)
[INFO] [stdout] 72 | |      -> libc::c_int;
[INFO] [stdout]    | |____________________- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign static
[INFO] [stdout]  --> src/modbus_tcp.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     #[no_mangle]
[INFO] [stdout]   |     ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 7 |     static mut stderr: *mut FILE;
[INFO] [stdout]   |     ----------------------------- foreign static
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]  --> src/modbus_tcp.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     #[no_mangle]
[INFO] [stdout]   |     ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 9 |     fn fprintf(_: *mut FILE, _: *const libc::c_char, _: ...) -> libc::c_int;
[INFO] [stdout]   |     ------------------------------------------------------------------------ foreign function
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus_tcp.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     #[no_mangle]
[INFO] [stdout]    |     ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 11 |     fn printf(_: *const libc::c_char, _: ...) -> libc::c_int;
[INFO] [stdout]    |     --------------------------------------------------------- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus_tcp.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     #[no_mangle]
[INFO] [stdout]    |     ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 13 |     fn perror(__s: *const libc::c_char);
[INFO] [stdout]    |     ------------------------------------ foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus_tcp.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |       #[no_mangle]
[INFO] [stdout]    |       ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 15 | /     fn select(__nfds: libc::c_int, __readfds: *mut fd_set,
[INFO] [stdout] 16 | |               __writefds: *mut fd_set, __exceptfds: *mut fd_set,
[INFO] [stdout] 17 | |               __timeout: *mut timeval) -> libc::c_int;
[INFO] [stdout]    | |______________________________________________________- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus_tcp.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     #[no_mangle]
[INFO] [stdout]    |     ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 19 |     fn malloc(_: libc::c_ulong) -> *mut libc::c_void;
[INFO] [stdout]    |     ------------------------------------------------- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus_tcp.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     #[no_mangle]
[INFO] [stdout]    |     ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 21 |     fn free(_: *mut libc::c_void);
[INFO] [stdout]    |     ------------------------------ foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus_tcp.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |       #[no_mangle]
[INFO] [stdout]    |       ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 23 | /     fn memset(_: *mut libc::c_void, _: libc::c_int, _: libc::c_ulong)
[INFO] [stdout] 24 | |      -> *mut libc::c_void;
[INFO] [stdout]    | |__________________________- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus_tcp.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     #[no_mangle]
[INFO] [stdout]    |     ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 26 |     fn __errno_location() -> *mut libc::c_int;
[INFO] [stdout]    |     ------------------------------------------ foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus_tcp.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     #[no_mangle]
[INFO] [stdout]    |     ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 28 |     fn close(__fd: libc::c_int) -> libc::c_int;
[INFO] [stdout]    |     ------------------------------------------- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus_tcp.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |       #[no_mangle]
[INFO] [stdout]    |       ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 30 | /     fn getsockopt(__fd: libc::c_int, __level: libc::c_int,
[INFO] [stdout] 31 | |                   __optname: libc::c_int, __optval: *mut libc::c_void,
[INFO] [stdout] 32 | |                   __optlen: *mut socklen_t) -> libc::c_int;
[INFO] [stdout]    | |___________________________________________________________- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus_tcp.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |       #[no_mangle]
[INFO] [stdout]    |       ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 34 | /     fn socket(__domain: libc::c_int, __type: libc::c_int,
[INFO] [stdout] 35 | |               __protocol: libc::c_int) -> libc::c_int;
[INFO] [stdout]    | |______________________________________________________- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus_tcp.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |       #[no_mangle]
[INFO] [stdout]    |       ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 37 | /     fn bind(__fd: libc::c_int, __addr: *const sockaddr, __len: socklen_t)
[INFO] [stdout] 38 | |      -> libc::c_int;
[INFO] [stdout]    | |____________________- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus_tcp.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |       #[no_mangle]
[INFO] [stdout]    |       ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 40 | /     fn connect(__fd: libc::c_int, __addr: *const sockaddr, __len: socklen_t)
[INFO] [stdout] 41 | |      -> libc::c_int;
[INFO] [stdout]    | |____________________- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus_tcp.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |       #[no_mangle]
[INFO] [stdout]    |       ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 43 | /     fn send(__fd: libc::c_int, __buf: *const libc::c_void, __n: size_t,
[INFO] [stdout] 44 | |             __flags: libc::c_int) -> ssize_t;
[INFO] [stdout]    | |_____________________________________________- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus_tcp.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 |       #[no_mangle]
[INFO] [stdout]    |       ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 46 | /     fn recv(__fd: libc::c_int, __buf: *mut libc::c_void, __n: size_t,
[INFO] [stdout] 47 | |             __flags: libc::c_int) -> ssize_t;
[INFO] [stdout]    | |_____________________________________________- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus_tcp.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 48 |       #[no_mangle]
[INFO] [stdout]    |       ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 49 | /     fn setsockopt(__fd: libc::c_int, __level: libc::c_int,
[INFO] [stdout] 50 | |                   __optname: libc::c_int, __optval: *const libc::c_void,
[INFO] [stdout] 51 | |                   __optlen: socklen_t) -> libc::c_int;
[INFO] [stdout]    | |______________________________________________________- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus_tcp.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 |     #[no_mangle]
[INFO] [stdout]    |     ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 53 |     fn listen(__fd: libc::c_int, __n: libc::c_int) -> libc::c_int;
[INFO] [stdout]    |     -------------------------------------------------------------- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus_tcp.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 54 |     #[no_mangle]
[INFO] [stdout]    |     ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 55 |     fn shutdown(__fd: libc::c_int, __how: libc::c_int) -> libc::c_int;
[INFO] [stdout]    |     ------------------------------------------------------------------ foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus_tcp.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 56 |     #[no_mangle]
[INFO] [stdout]    |     ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 57 |     fn htonl(__hostlong: uint32_t) -> uint32_t;
[INFO] [stdout]    |     ------------------------------------------- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus_tcp.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 58 |     #[no_mangle]
[INFO] [stdout]    |     ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 59 |     fn htons(__hostshort: uint16_t) -> uint16_t;
[INFO] [stdout]    |     -------------------------------------------- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus_tcp.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 |     #[no_mangle]
[INFO] [stdout]    |     ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 61 |     fn inet_addr(__cp: *const libc::c_char) -> in_addr_t;
[INFO] [stdout]    |     ----------------------------------------------------- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus_tcp.rs:62:5
[INFO] [stdout]    |
[INFO] [stdout] 62 |     #[no_mangle]
[INFO] [stdout]    |     ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 63 |     fn inet_ntoa(__in: in_addr) -> *mut libc::c_char;
[INFO] [stdout]    |     ------------------------------------------------- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus_tcp.rs:64:5
[INFO] [stdout]    |
[INFO] [stdout] 64 |       #[no_mangle]
[INFO] [stdout]    |       ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 65 | /     fn getaddrinfo(__name: *const libc::c_char,
[INFO] [stdout] 66 | |                    __service: *const libc::c_char, __req: *const addrinfo,
[INFO] [stdout] 67 | |                    __pai: *mut *mut addrinfo) -> libc::c_int;
[INFO] [stdout]    | |_____________________________________________________________- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus_tcp.rs:68:5
[INFO] [stdout]    |
[INFO] [stdout] 68 |     #[no_mangle]
[INFO] [stdout]    |     ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 69 |     fn freeaddrinfo(__ai: *mut addrinfo);
[INFO] [stdout]    |     ------------------------------------- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus_tcp.rs:70:5
[INFO] [stdout]    |
[INFO] [stdout] 70 |     #[no_mangle]
[INFO] [stdout]    |     ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 71 |     fn gai_strerror(__ecode: libc::c_int) -> *const libc::c_char;
[INFO] [stdout]    |     ------------------------------------------------------------- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus_tcp.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 72 |     #[no_mangle]
[INFO] [stdout]    |     ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 73 |     fn modbus_free(ctx: *mut modbus_t);
[INFO] [stdout]    |     ----------------------------------- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus_tcp.rs:74:5
[INFO] [stdout]    |
[INFO] [stdout] 74 |       #[no_mangle]
[INFO] [stdout]    |       ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 75 | /     fn _modbus_receive_msg(ctx: *mut modbus_t, msg: *mut uint8_t,
[INFO] [stdout] 76 | |                            msg_type: msg_type_t) -> libc::c_int;
[INFO] [stdout]    | |________________________________________________________________- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus_tcp.rs:77:5
[INFO] [stdout]    |
[INFO] [stdout] 77 |       #[no_mangle]
[INFO] [stdout]    |       ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 78 | /     fn strlcpy(dest: *mut libc::c_char, src: *const libc::c_char,
[INFO] [stdout] 79 | |                dest_size: size_t) -> size_t;
[INFO] [stdout]    | |____________________________________________- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus_tcp.rs:80:5
[INFO] [stdout]    |
[INFO] [stdout] 80 |     #[no_mangle]
[INFO] [stdout]    |     ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 81 |     fn _modbus_init_common(ctx: *mut modbus_t);
[INFO] [stdout]    |     ------------------------------------------- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign static
[INFO] [stdout]  --> src/modbus.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     #[no_mangle]
[INFO] [stdout]   |     ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 7 |     static mut stderr: *mut FILE;
[INFO] [stdout]   |     ----------------------------- foreign static
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]  --> src/modbus.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     #[no_mangle]
[INFO] [stdout]   |     ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 9 |     fn fprintf(_: *mut FILE, _: *const libc::c_char, _: ...) -> libc::c_int;
[INFO] [stdout]   |     ------------------------------------------------------------------------ foreign function
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     #[no_mangle]
[INFO] [stdout]    |     ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 11 |     fn printf(_: *const libc::c_char, _: ...) -> libc::c_int;
[INFO] [stdout]    |     --------------------------------------------------------- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |       #[no_mangle]
[INFO] [stdout]    |       ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 13 | /     fn vfprintf(_: *mut FILE, _: *const libc::c_char, _: ::std::ffi::VaList)
[INFO] [stdout] 14 | |      -> libc::c_int;
[INFO] [stdout]    | |____________________- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |       #[no_mangle]
[INFO] [stdout]    |       ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 16 | /     fn memcpy(_: *mut libc::c_void, _: *const libc::c_void, _: libc::c_ulong)
[INFO] [stdout] 17 | |      -> *mut libc::c_void;
[INFO] [stdout]    | |__________________________- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |       #[no_mangle]
[INFO] [stdout]    |       ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 19 | /     fn memset(_: *mut libc::c_void, _: libc::c_int, _: libc::c_ulong)
[INFO] [stdout] 20 | |      -> *mut libc::c_void;
[INFO] [stdout]    | |__________________________- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     #[no_mangle]
[INFO] [stdout]    |     ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 22 |     fn strlen(_: *const libc::c_char) -> libc::c_ulong;
[INFO] [stdout]    |     --------------------------------------------------- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     #[no_mangle]
[INFO] [stdout]    |     ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 24 |     fn strerror(_: libc::c_int) -> *mut libc::c_char;
[INFO] [stdout]    |     ------------------------------------------------- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     #[no_mangle]
[INFO] [stdout]    |     ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 26 |     fn malloc(_: libc::c_ulong) -> *mut libc::c_void;
[INFO] [stdout]    |     ------------------------------------------------- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     #[no_mangle]
[INFO] [stdout]    |     ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 28 |     fn free(_: *mut libc::c_void);
[INFO] [stdout]    |     ------------------------------ foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     #[no_mangle]
[INFO] [stdout]    |     ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 30 |     fn __errno_location() -> *mut libc::c_int;
[INFO] [stdout]    |     ------------------------------------------ foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |       #[no_mangle]
[INFO] [stdout]    |       ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 32 | /     fn nanosleep(__requested_time: *const timespec,
[INFO] [stdout] 33 | |                  __remaining: *mut timespec) -> libc::c_int;
[INFO] [stdout]    | |____________________________________________________________- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` has no effect on a foreign function
[INFO] [stdout]   --> src/modbus.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |       #[no_mangle]
[INFO] [stdout]    |       ^^^^^^^^^^^^ help: remove this attribute
[INFO] [stdout] 35 | /     fn modbus_set_bits_from_bytes(dest: *mut uint8_t, idx: libc::c_int,
[INFO] [stdout] 36 | |                                   nb_bits: libc::c_uint,
[INFO] [stdout] 37 | |                                   tab_byte: *const uint8_t);
[INFO] [stdout]    | |____________________________________________________________- foreign function
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: symbol names in extern blocks are not mangled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 71 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `libmodbus` due to 4 previous errors; 71 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "9e45fdead6c72d694b06ef3367b2f803c0c1ad68ebaed2cfdf48391984486dd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e45fdead6c72d694b06ef3367b2f803c0c1ad68ebaed2cfdf48391984486dd7", kill_on_drop: false }`
[INFO] [stdout] 9e45fdead6c72d694b06ef3367b2f803c0c1ad68ebaed2cfdf48391984486dd7