[INFO] fetching crate glpk-sys 0.2.0...
[INFO] checking glpk-sys-0.2.0 against 1.55.0 for beta-1.56-3
[INFO] extracting crate glpk-sys 0.2.0 into /workspace/builds/worker-53/source
[INFO] validating manifest of crates.io crate glpk-sys 0.2.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate glpk-sys 0.2.0
[INFO] finished tweaking crates.io crate glpk-sys 0.2.0
[INFO] tweaked toml for crates.io crate glpk-sys 0.2.0 written to /workspace/builds/worker-53/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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" "+1.55.0" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.1.12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1d027511651bb681af6e516c3f54a828de4153ccb3d6b392409a922d556c4dad
[INFO] running `Command { std: "docker" "start" "-a" "1d027511651bb681af6e516c3f54a828de4153ccb3d6b392409a922d556c4dad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1d027511651bb681af6e516c3f54a828de4153ccb3d6b392409a922d556c4dad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d027511651bb681af6e516c3f54a828de4153ccb3d6b392409a922d556c4dad", kill_on_drop: false }`
[INFO] [stdout] 1d027511651bb681af6e516c3f54a828de4153ccb3d6b392409a922d556c4dad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 82d546b7d94543f0401c72d33ceb7e842133cfeb9b61b805f14e159806504d7e
[INFO] running `Command { std: "docker" "start" "-a" "82d546b7d94543f0401c72d33ceb7e842133cfeb9b61b805f14e159806504d7e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling glpk-sys v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking libc v0.1.12
[INFO] [stdout] warning: `extern` block uses type `[Struct___va_list_tag; 1]`, which is not FFI-safe
[INFO] [stdout]    --> src/lib.rs:610:57
[INFO] [stdout]     |
[INFO] [stdout] 610 |     pub fn glp_vprintf(fmt: *const ::libc::c_char, arg: va_list) -> ();
[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 `[Struct___va_list_tag; 1]`, which is not FFI-safe
[INFO] [stdout]    --> src/lib.rs:610:57
[INFO] [stdout]     |
[INFO] [stdout] 610 |     pub fn glp_vprintf(fmt: *const ::libc::c_char, arg: va_list) -> ();
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: getting the inner pointer of a temporary `CString`
[INFO] [stdout]   --> examples/main.rs:12:69
[INFO] [stdout]    |
[INFO] [stdout] 12 |         glpk::glp_set_prob_name(lp, CString::new("sample").unwrap().as_ptr());
[INFO] [stdout]    |                                     ------------------------------- ^^^^^^ this pointer will be invalid
[INFO] [stdout]    |                                     |
[INFO] [stdout]    |                                     this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(temporary_cstring_as_ptr)]` on by default
[INFO] [stdout]    = note: pointers do not have a lifetime; when calling `as_ptr` the `CString` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned
[INFO] [stdout]    = help: for more information, see https://doc.rust-lang.org/reference/destructors.html
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: getting the inner pointer of a temporary `CString`
[INFO] [stdout]   --> examples/main.rs:16:66
[INFO] [stdout]    |
[INFO] [stdout] 16 |         glpk::glp_set_row_name(lp, 1, CString::new("p").unwrap().as_ptr());
[INFO] [stdout]    |                                       -------------------------- ^^^^^^ this pointer will be invalid
[INFO] [stdout]    |                                       |
[INFO] [stdout]    |                                       this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stdout]    |
[INFO] [stdout]    = note: pointers do not have a lifetime; when calling `as_ptr` the `CString` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned
[INFO] [stdout]    = help: for more information, see https://doc.rust-lang.org/reference/destructors.html
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: getting the inner pointer of a temporary `CString`
[INFO] [stdout]   --> examples/main.rs:18:66
[INFO] [stdout]    |
[INFO] [stdout] 18 |         glpk::glp_set_row_name(lp, 2, CString::new("q").unwrap().as_ptr());
[INFO] [stdout]    |                                       -------------------------- ^^^^^^ this pointer will be invalid
[INFO] [stdout]    |                                       |
[INFO] [stdout]    |                                       this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stdout]    |
[INFO] [stdout]    = note: pointers do not have a lifetime; when calling `as_ptr` the `CString` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned
[INFO] [stdout]    = help: for more information, see https://doc.rust-lang.org/reference/destructors.html
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: getting the inner pointer of a temporary `CString`
[INFO] [stdout]   --> examples/main.rs:20:66
[INFO] [stdout]    |
[INFO] [stdout] 20 |         glpk::glp_set_row_name(lp, 3, CString::new("r").unwrap().as_ptr());
[INFO] [stdout]    |                                       -------------------------- ^^^^^^ this pointer will be invalid
[INFO] [stdout]    |                                       |
[INFO] [stdout]    |                                       this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stdout]    |
[INFO] [stdout]    = note: pointers do not have a lifetime; when calling `as_ptr` the `CString` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned
[INFO] [stdout]    = help: for more information, see https://doc.rust-lang.org/reference/destructors.html
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: getting the inner pointer of a temporary `CString`
[INFO] [stdout]   --> examples/main.rs:24:67
[INFO] [stdout]    |
[INFO] [stdout] 24 |         glpk::glp_set_col_name(lp, 1, CString::new("x1").unwrap().as_ptr());
[INFO] [stdout]    |                                       --------------------------- ^^^^^^ this pointer will be invalid
[INFO] [stdout]    |                                       |
[INFO] [stdout]    |                                       this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stdout]    |
[INFO] [stdout]    = note: pointers do not have a lifetime; when calling `as_ptr` the `CString` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned
[INFO] [stdout]    = help: for more information, see https://doc.rust-lang.org/reference/destructors.html
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: getting the inner pointer of a temporary `CString`
[INFO] [stdout]   --> examples/main.rs:27:67
[INFO] [stdout]    |
[INFO] [stdout] 27 |         glpk::glp_set_col_name(lp, 2, CString::new("x2").unwrap().as_ptr());
[INFO] [stdout]    |                                       --------------------------- ^^^^^^ this pointer will be invalid
[INFO] [stdout]    |                                       |
[INFO] [stdout]    |                                       this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stdout]    |
[INFO] [stdout]    = note: pointers do not have a lifetime; when calling `as_ptr` the `CString` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned
[INFO] [stdout]    = help: for more information, see https://doc.rust-lang.org/reference/destructors.html
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: getting the inner pointer of a temporary `CString`
[INFO] [stdout]   --> examples/main.rs:30:67
[INFO] [stdout]    |
[INFO] [stdout] 30 |         glpk::glp_set_col_name(lp, 3, CString::new("x3").unwrap().as_ptr());
[INFO] [stdout]    |                                       --------------------------- ^^^^^^ this pointer will be invalid
[INFO] [stdout]    |                                       |
[INFO] [stdout]    |                                       this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stdout]    |
[INFO] [stdout]    = note: pointers do not have a lifetime; when calling `as_ptr` the `CString` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned
[INFO] [stdout]    = help: for more information, see https://doc.rust-lang.org/reference/destructors.html
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.42s
[INFO] running `Command { std: "docker" "inspect" "82d546b7d94543f0401c72d33ceb7e842133cfeb9b61b805f14e159806504d7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82d546b7d94543f0401c72d33ceb7e842133cfeb9b61b805f14e159806504d7e", kill_on_drop: false }`
[INFO] [stdout] 82d546b7d94543f0401c72d33ceb7e842133cfeb9b61b805f14e159806504d7e
