[INFO] fetching crate winflip 0.1.0...
[INFO] testing winflip-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate winflip 0.1.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate winflip 0.1.0 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 winflip 0.1.0
[INFO] finished tweaking crates.io crate winflip 0.1.0
[INFO] tweaked toml for crates.io crate winflip 0.1.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate winflip 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 6f212f8b54506fab8043eee3553357d1536e0ad2d9e5c79e25c1a03c9c4d30fe
[INFO] running `Command { std: "docker" "start" "-a" "6f212f8b54506fab8043eee3553357d1536e0ad2d9e5c79e25c1a03c9c4d30fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f212f8b54506fab8043eee3553357d1536e0ad2d9e5c79e25c1a03c9c4d30fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f212f8b54506fab8043eee3553357d1536e0ad2d9e5c79e25c1a03c9c4d30fe", kill_on_drop: false }`
[INFO] [stdout] 6f212f8b54506fab8043eee3553357d1536e0ad2d9e5c79e25c1a03c9c4d30fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e6f0ad34eb776842cd265e9e7acc6a580951d578f57f4136991262cc938e6398
[INFO] running `Command { std: "docker" "start" "-a" "e6f0ad34eb776842cd265e9e7acc6a580951d578f57f4136991262cc938e6398", kill_on_drop: false }`
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling x11-dl v2.18.4
[INFO] [stderr]    Compiling winflip v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/x11.rs:561:14
[INFO] [stdout]     |
[INFO] [stdout] 561 |             };
[INFO] [stdout]     |              ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `window_title`
[INFO] [stdout]    --> src/x11.rs:367:13
[INFO] [stdout]     |
[INFO] [stdout] 367 |         let window_title: *const raw::c_char = ffi::CString::new(title).unwrap().as_ptr();
[INFO] [stdout]     |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_window_title`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: getting the inner pointer of a temporary `CString`
[INFO] [stdout]    --> src/x11.rs:126:59
[INFO] [stdout]     |
[INFO] [stdout] 126 |                 ffi::CString::new("UTF8_STRING").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]    --> src/x11.rs:131:60
[INFO] [stdout]     |
[INFO] [stdout] 131 |                 ffi::CString::new("WM_PROTOCOLS").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]    --> src/x11.rs:136:64
[INFO] [stdout]     |
[INFO] [stdout] 136 |                 ffi::CString::new("WM_DELETE_WINDOW").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]    --> src/x11.rs:141:56
[INFO] [stdout]     |
[INFO] [stdout] 141 |                 ffi::CString::new("WM_STATE").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]    --> src/x11.rs:146:60
[INFO] [stdout]     |
[INFO] [stdout] 146 |                 ffi::CString::new("_NET_WM_NAME").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]    --> src/x11.rs:151:65
[INFO] [stdout]     |
[INFO] [stdout] 151 |                 ffi::CString::new("_NET_WM_ICON_NAME").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]    --> src/x11.rs:367:82
[INFO] [stdout]     |
[INFO] [stdout] 367 |         let window_title: *const raw::c_char = ffi::CString::new(title).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: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.52s
[INFO] running `Command { std: "docker" "inspect" "e6f0ad34eb776842cd265e9e7acc6a580951d578f57f4136991262cc938e6398", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6f0ad34eb776842cd265e9e7acc6a580951d578f57f4136991262cc938e6398", kill_on_drop: false }`
[INFO] [stdout] e6f0ad34eb776842cd265e9e7acc6a580951d578f57f4136991262cc938e6398
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6d60ded442778fb539c849333291a437737500bdc2a8d8ebd076e2fbdb8cd62c
[INFO] running `Command { std: "docker" "start" "-a" "6d60ded442778fb539c849333291a437737500bdc2a8d8ebd076e2fbdb8cd62c", kill_on_drop: false }`
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/x11.rs:561:14
[INFO] [stdout]     |
[INFO] [stdout] 561 |             };
[INFO] [stdout]     |              ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `window_title`
[INFO] [stdout]    --> src/x11.rs:367:13
[INFO] [stdout]     |
[INFO] [stdout] 367 |         let window_title: *const raw::c_char = ffi::CString::new(title).unwrap().as_ptr();
[INFO] [stdout]     |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_window_title`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: getting the inner pointer of a temporary `CString`
[INFO] [stdout]    --> src/x11.rs:126:59
[INFO] [stdout]     |
[INFO] [stdout] 126 |                 ffi::CString::new("UTF8_STRING").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]    --> src/x11.rs:131:60
[INFO] [stdout]     |
[INFO] [stdout] 131 |                 ffi::CString::new("WM_PROTOCOLS").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]    --> src/x11.rs:136:64
[INFO] [stdout]     |
[INFO] [stdout] 136 |                 ffi::CString::new("WM_DELETE_WINDOW").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]    --> src/x11.rs:141:56
[INFO] [stdout]     |
[INFO] [stdout] 141 |                 ffi::CString::new("WM_STATE").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]    --> src/x11.rs:146:60
[INFO] [stdout]     |
[INFO] [stdout] 146 |                 ffi::CString::new("_NET_WM_NAME").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]    --> src/x11.rs:151:65
[INFO] [stdout]     |
[INFO] [stdout] 151 |                 ffi::CString::new("_NET_WM_ICON_NAME").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]    --> src/x11.rs:367:82
[INFO] [stdout]     |
[INFO] [stdout] 367 |         let window_title: *const raw::c_char = ffi::CString::new(title).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: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling winflip v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/x11.rs:561:14
[INFO] [stdout]     |
[INFO] [stdout] 561 |             };
[INFO] [stdout]     |              ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `window_title`
[INFO] [stdout]    --> src/x11.rs:367:13
[INFO] [stdout]     |
[INFO] [stdout] 367 |         let window_title: *const raw::c_char = ffi::CString::new(title).unwrap().as_ptr();
[INFO] [stdout]     |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_window_title`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `xl`
[INFO] [stdout]     --> src/x11.rs:1021:13
[INFO] [stdout]      |
[INFO] [stdout] 1021 |         let xl = xlib::Xlib::open().unwrap();
[INFO] [stdout]      |             ^^ help: if this is intentional, prefix it with an underscore: `_xl`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `glx`
[INFO] [stdout]     --> src/x11.rs:1027:13
[INFO] [stdout]      |
[INFO] [stdout] 1027 |         let glx = glx::Glx::open().unwrap();
[INFO] [stdout]      |             ^^^ help: if this is intentional, prefix it with an underscore: `_glx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: getting the inner pointer of a temporary `CString`
[INFO] [stdout]    --> src/x11.rs:126:59
[INFO] [stdout]     |
[INFO] [stdout] 126 |                 ffi::CString::new("UTF8_STRING").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]    --> src/x11.rs:131:60
[INFO] [stdout]     |
[INFO] [stdout] 131 |                 ffi::CString::new("WM_PROTOCOLS").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]    --> src/x11.rs:136:64
[INFO] [stdout]     |
[INFO] [stdout] 136 |                 ffi::CString::new("WM_DELETE_WINDOW").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]    --> src/x11.rs:141:56
[INFO] [stdout]     |
[INFO] [stdout] 141 |                 ffi::CString::new("WM_STATE").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]    --> src/x11.rs:146:60
[INFO] [stdout]     |
[INFO] [stdout] 146 |                 ffi::CString::new("_NET_WM_NAME").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]    --> src/x11.rs:151:65
[INFO] [stdout]     |
[INFO] [stdout] 151 |                 ffi::CString::new("_NET_WM_ICON_NAME").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]    --> src/x11.rs:367:82
[INFO] [stdout]     |
[INFO] [stdout] 367 |         let window_title: *const raw::c_char = ffi::CString::new(title).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: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.25s
[INFO] running `Command { std: "docker" "inspect" "6d60ded442778fb539c849333291a437737500bdc2a8d8ebd076e2fbdb8cd62c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d60ded442778fb539c849333291a437737500bdc2a8d8ebd076e2fbdb8cd62c", kill_on_drop: false }`
[INFO] [stdout] 6d60ded442778fb539c849333291a437737500bdc2a8d8ebd076e2fbdb8cd62c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 47b489ad48f0290a01bd426e38ff438a2a243f6889e6ad7aae777ba703d34e64
[INFO] running `Command { std: "docker" "start" "-a" "47b489ad48f0290a01bd426e38ff438a2a243f6889e6ad7aae777ba703d34e64", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/x11.rs:561:14
[INFO] [stderr]     |
[INFO] [stderr] 561 |             };
[INFO] [stderr]     |              ^ help: remove this semicolon
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `window_title`
[INFO] [stderr]    --> src/x11.rs:367:13
[INFO] [stderr]     |
[INFO] [stderr] 367 |         let window_title: *const raw::c_char = ffi::CString::new(title).unwrap().as_ptr();
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_window_title`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: getting the inner pointer of a temporary `CString`
[INFO] [stderr]    --> src/x11.rs:126:59
[INFO] [stderr]     |
[INFO] [stderr] 126 |                 ffi::CString::new("UTF8_STRING").unwrap().as_ptr(),
[INFO] [stderr]     |                 ----------------------------------------- ^^^^^^ this pointer will be invalid
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(temporary_cstring_as_ptr)]` on by default
[INFO] [stderr]     = 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] [stderr]     = help: for more information, see https://doc.rust-lang.org/reference/destructors.html
[INFO] [stderr] 
[INFO] [stderr] warning: getting the inner pointer of a temporary `CString`
[INFO] [stderr]    --> src/x11.rs:131:60
[INFO] [stderr]     |
[INFO] [stderr] 131 |                 ffi::CString::new("WM_PROTOCOLS").unwrap().as_ptr(),
[INFO] [stderr]     |                 ------------------------------------------ ^^^^^^ this pointer will be invalid
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stderr]     |
[INFO] [stderr]     = 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] [stderr]     = help: for more information, see https://doc.rust-lang.org/reference/destructors.html
[INFO] [stderr] 
[INFO] [stderr] warning: getting the inner pointer of a temporary `CString`
[INFO] [stderr]    --> src/x11.rs:136:64
[INFO] [stderr]     |
[INFO] [stderr] 136 |                 ffi::CString::new("WM_DELETE_WINDOW").unwrap().as_ptr(),
[INFO] [stderr]     |                 ---------------------------------------------- ^^^^^^ this pointer will be invalid
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stderr]     |
[INFO] [stderr]     = 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] [stderr]     = help: for more information, see https://doc.rust-lang.org/reference/destructors.html
[INFO] [stderr] 
[INFO] [stderr] warning: getting the inner pointer of a temporary `CString`
[INFO] [stderr]    --> src/x11.rs:141:56
[INFO] [stderr]     |
[INFO] [stderr] 141 |                 ffi::CString::new("WM_STATE").unwrap().as_ptr(),
[INFO] [stderr]     |                 -------------------------------------- ^^^^^^ this pointer will be invalid
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stderr]     |
[INFO] [stderr]     = 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] [stderr]     = help: for more information, see https://doc.rust-lang.org/reference/destructors.html
[INFO] [stderr] 
[INFO] [stderr] warning: getting the inner pointer of a temporary `CString`
[INFO] [stderr]    --> src/x11.rs:146:60
[INFO] [stderr]     |
[INFO] [stderr] 146 |                 ffi::CString::new("_NET_WM_NAME").unwrap().as_ptr(),
[INFO] [stderr]     |                 ------------------------------------------ ^^^^^^ this pointer will be invalid
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stderr]     |
[INFO] [stderr]     = 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] [stderr]     = help: for more information, see https://doc.rust-lang.org/reference/destructors.html
[INFO] [stderr] 
[INFO] [stderr] warning: getting the inner pointer of a temporary `CString`
[INFO] [stderr]    --> src/x11.rs:151:65
[INFO] [stderr]     |
[INFO] [stderr] 151 |                 ffi::CString::new("_NET_WM_ICON_NAME").unwrap().as_ptr(),
[INFO] [stderr]     |                 ----------------------------------------------- ^^^^^^ this pointer will be invalid
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stderr]     |
[INFO] [stderr]     = 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] [stderr]     = help: for more information, see https://doc.rust-lang.org/reference/destructors.html
[INFO] [stderr] 
[INFO] [stderr] warning: getting the inner pointer of a temporary `CString`
[INFO] [stderr]    --> src/x11.rs:367:82
[INFO] [stderr]     |
[INFO] [stderr] 367 |         let window_title: *const raw::c_char = ffi::CString::new(title).unwrap().as_ptr();
[INFO] [stderr]     |                                                --------------------------------- ^^^^^^ this pointer will be invalid
[INFO] [stderr]     |                                                |
[INFO] [stderr]     |                                                this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stderr]     |
[INFO] [stderr]     = 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] [stderr]     = help: for more information, see https://doc.rust-lang.org/reference/destructors.html
[INFO] [stderr] 
[INFO] [stderr] warning: `winflip` (lib) generated 9 warnings
[INFO] [stderr] warning: unused variable: `xl`
[INFO] [stderr]     --> src/x11.rs:1021:13
[INFO] [stderr]      |
[INFO] [stderr] 1021 |         let xl = xlib::Xlib::open().unwrap();
[INFO] [stderr]      |             ^^ help: if this is intentional, prefix it with an underscore: `_xl`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `glx`
[INFO] [stderr]     --> src/x11.rs:1027:13
[INFO] [stderr]      |
[INFO] [stderr] 1027 |         let glx = glx::Glx::open().unwrap();
[INFO] [stderr]      |             ^^^ help: if this is intentional, prefix it with an underscore: `_glx`
[INFO] [stderr] 
[INFO] [stderr] warning: `winflip` (lib test) generated 11 warnings (9 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/winflip-0e5cf91faa854ce8)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] test x11::tests::xlib_open ... ok
[INFO] [stdout] test x11::tests::glx_open ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/winflip-f033fff8a62883ed)
[INFO] [stderr]    Doc-tests winflip
[INFO] [stdout] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stdout] running 0 tests
[INFO] [stderr]    --> /opt/rustwide/workdir/src/x11.rs:561:14
[INFO] [stdout] 
[INFO] [stderr]     |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 561 |             };
[INFO] [stdout] 
[INFO] [stderr]     |              ^ help: remove this semicolon
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] running `Command { std: "docker" "inspect" "47b489ad48f0290a01bd426e38ff438a2a243f6889e6ad7aae777ba703d34e64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47b489ad48f0290a01bd426e38ff438a2a243f6889e6ad7aae777ba703d34e64", kill_on_drop: false }`
[INFO] [stdout] 47b489ad48f0290a01bd426e38ff438a2a243f6889e6ad7aae777ba703d34e64