[INFO] fetching crate cupi 0.1.0...
[INFO] testing cupi-0.1.0 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate cupi 0.1.0 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate cupi 0.1.0
[INFO] finished tweaking crates.io crate cupi 0.1.0
[INFO] tweaked toml for crates.io crate cupi 0.1.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate cupi 0.1.0 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 20 packages to latest compatible versions
[INFO] [stderr]       Adding bitflags v0.3.3 (available: v2.9.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mmap v0.1.1
[INFO] [stderr]   Downloaded libc v0.1.12
[INFO] [stderr]   Downloaded spidev v0.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1fa294b614a0f1ac8afe4ebee12b7650cf5aa54888401188213ee86aaa4ed06a
[INFO] running `Command { std: "docker" "start" "-a" "1fa294b614a0f1ac8afe4ebee12b7650cf5aa54888401188213ee86aaa4ed06a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1fa294b614a0f1ac8afe4ebee12b7650cf5aa54888401188213ee86aaa4ed06a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fa294b614a0f1ac8afe4ebee12b7650cf5aa54888401188213ee86aaa4ed06a", kill_on_drop: false }`
[INFO] [stdout] 1fa294b614a0f1ac8afe4ebee12b7650cf5aa54888401188213ee86aaa4ed06a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 33665e6ffac2dafc1d4ccbb05f318ba114b04dd4aeafdba89529cabe97fe3034
[INFO] running `Command { std: "docker" "start" "-a" "33665e6ffac2dafc1d4ccbb05f318ba114b04dd4aeafdba89529cabe97fe3034", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]    Compiling cfg_aliases v0.2.1
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling libc v0.1.12
[INFO] [stderr]    Compiling bitflags v0.3.3
[INFO] [stderr]    Compiling nix v0.29.0
[INFO] [stderr]    Compiling nix v0.30.1
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling spidev v0.7.0
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling mmap v0.1.1
[INFO] [stderr]    Compiling cupi v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: could not find `ioctl` in `sys`
[INFO] [stdout]   --> src/lib.rs:62:15
[INFO] [stdout]    |
[INFO] [stdout] 62 | use nix::sys::ioctl::libc::geteuid;
[INFO] [stdout]    |               ^^^^^ could not find `ioctl` in `sys`
[INFO] [stdout]    |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/nix-0.30.1/src/sys/mod.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub mod ioctl;
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] note: the item is gated behind the `ioctl` feature
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/nix-0.30.1/src/sys/mod.rs:44:7
[INFO] [stdout]    |
[INFO] [stdout] 44 | #[cfg(feature = "ioctl")]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `core_intrinsics` is internal to the compiler or standard library
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(core_intrinsics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: using it is strongly discouraged
[INFO] [stdout]   = note: `#[warn(internal_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]   --> src/lib.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | #[macro_use] extern crate bitflags;
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `RootRequired`, `UnconnectedPin`, and `UnsupportedHardware`
[INFO] [stdout]   --> src/result.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout] 9  |     RootRequired,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 10 |     UnexpectedError,
[INFO] [stdout] 11 |     UnsupportedHardware,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 12 |     UnconnectedPin,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/map.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 |         let f = try!(OpenOptions::new().read(true).write(true).open("/dev/mem"));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/map.rs:20:23
[INFO] [stdout]    |
[INFO] [stdout] 20 |         let mem_map = try!(mmap::MemoryMap::new(BCM2708::BLOCK_SIZE, &[
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Error`
[INFO] [stdout]  --> src/logic.rs:3:14
[INFO] [stdout]   |
[INFO] [stdout] 3 | use {Result, Error};
[INFO] [stdout]   |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/logic.rs:75:13
[INFO] [stdout]    |
[INFO] [stdout] 75 |       match try!(self.digital_read()) {
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/logic.rs:82:13
[INFO] [stdout]    |
[INFO] [stdout] 82 |       match try!(self.digital_read()) {
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/board.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |         try!(write!(f, "{}", s));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/board.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 88 |         try!(write!(f, "{}", s));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/board.rs:111:9
[INFO] [stdout]     |
[INFO] [stdout] 111 |         try!(write!(f, "{}", s));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/board.rs:138:19
[INFO] [stdout]     |
[INFO] [stdout] 138 |     let cpuinfo = try!(cpuinfo());
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/board.rs:139:18
[INFO] [stdout]     |
[INFO] [stdout] 139 |     let memory = try!(memory());
[INFO] [stdout]     |                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/cupi.rs:13:21
[INFO] [stdout]    |
[INFO] [stdout] 13 |         let board = try!(board());
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/cupi.rs:16:26
[INFO] [stdout]    |
[INFO] [stdout] 16 |             true => Some(try!(GPIO::new(board.cpu))),
[INFO] [stdout]    |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/cupi.rs:30:24
[INFO] [stdout]    |
[INFO] [stdout] 30 |         let gpio_pin = try!(self.board.pin_to_gpio(pin));
[INFO] [stdout]    |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/cupi.rs:38:24
[INFO] [stdout]    |
[INFO] [stdout] 38 |         let gpio_pin = try!(self.board.pin_to_gpio(pin));
[INFO] [stdout]    |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/bcm270x/gpio.rs:20:23
[INFO] [stdout]    |
[INFO] [stdout] 20 |         let sys_mem = try!(SystemMemory::new());
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/bcm270x/gpio.rs:21:25
[INFO] [stdout]    |
[INFO] [stdout] 21 |         let gpio_base = try!(sys_mem.mmap(ptr));
[INFO] [stdout]    |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sys/gpio.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |         try!(GPIOSelector::write("export", self.pin));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sys/gpio.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!(GPIOPinSelector::write(self.pin, "direction", "in"));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sys/gpio.rs:34:19
[INFO] [stdout]    |
[INFO] [stdout] 34 |         let sel = try!(GPIOPinSelector::open_rd(self.pin, "value"));
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sys/gpio.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |         try!(GPIOPinSelector::write(self.pin, "direction", "out"));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sys/gpio.rs:43:19
[INFO] [stdout]    |
[INFO] [stdout] 43 |         let sel = try!(GPIOPinSelector::open(self.pin, "value"));
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sys/gpio.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |         try!(self.sel.seek(SeekFrom::Start(0)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sys/gpio.rs:66:19
[INFO] [stdout]    |
[INFO] [stdout] 66 |         let len = try!(self.sel.read(&mut buf));
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sys/gpio.rs:99:9
[INFO] [stdout]    |
[INFO] [stdout] 99 |         try!(GPIOPinSelector::write(self.pin, "edge", match edge {
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sys/gpio.rs:127:15
[INFO] [stdout]     |
[INFO] [stdout] 127 |       let _ = try!(self.sel.write(&buf));
[INFO] [stdout]     |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sys/fs.rs:82:18
[INFO] [stdout]    |
[INFO] [stdout] 82 |             sys: try!(Selector::writable().open(format!("/sys/class/gpio/{}", name)))
[INFO] [stdout]    |                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sys/fs.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 88 |         try!(write!(sel.sys, "{}", src));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sys/fs.rs:87:23
[INFO] [stdout]    |
[INFO] [stdout] 87 |         let mut sel = try!(Self::open(name));
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sys/fs.rs:99:18
[INFO] [stdout]    |
[INFO] [stdout] 99 |             sys: try!(Selector::writable().open(format!("/sys/class/gpio/gpio{}/{}", pin, name)))
[INFO] [stdout]    |                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sys/fs.rs:105:18
[INFO] [stdout]     |
[INFO] [stdout] 105 |             sys: try!(Selector::readable().open(format!("/sys/class/gpio/gpio{}/{}", pin, name)))
[INFO] [stdout]     |                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sys/fs.rs:111:9
[INFO] [stdout]     |
[INFO] [stdout] 111 |         try!(write!(sel.sys, "{}", src));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sys/fs.rs:110:23
[INFO] [stdout]     |
[INFO] [stdout] 110 |         let mut sel = try!(Self::open(pin, name));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sys/mod.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     try!(f.read_to_string(&mut s));
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sys/mod.rs:34:17
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let mut f = try!(File::open("/proc/cpuinfo"));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sys/mod.rs:61:13
[INFO] [stdout]    |
[INFO] [stdout] 61 |     let o = try!(Command::new("free").output());
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sys/mod.rs:63:13
[INFO] [stdout]    |
[INFO] [stdout] 63 |     let s = try!(String::from_utf8(f));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sys/mod.rs:69:27
[INFO] [stdout]    |
[INFO] [stdout] 69 |             let total   = try!(w[1].parse::<u32>());
[INFO] [stdout]    |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sys/mod.rs:70:27
[INFO] [stdout]    |
[INFO] [stdout] 70 |             let used    = try!(w[2].parse::<u32>());
[INFO] [stdout]    |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sys/mod.rs:71:27
[INFO] [stdout]    |
[INFO] [stdout] 71 |             let free    = try!(w[3].parse::<u32>());
[INFO] [stdout]    |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sys/mod.rs:72:27
[INFO] [stdout]    |
[INFO] [stdout] 72 |             let shared  = try!(w[4].parse::<u32>());
[INFO] [stdout]    |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sys/mod.rs:73:27
[INFO] [stdout]    |
[INFO] [stdout] 73 |             let buffers = try!(w[5].parse::<u32>());
[INFO] [stdout]    |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sys/mod.rs:74:27
[INFO] [stdout]    |
[INFO] [stdout] 74 |             let cached  = try!(w[6].parse::<u32>());
[INFO] [stdout]    |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `associated_consts` has been stable since 1.20.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(associated_consts)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `thread_sleep` has been stable since 1.4.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(thread_sleep)]
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `core` has been stable since 1.6.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(core)]
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `duration` has been stable since 1.3.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(duration)]
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `convert`
[INFO] [stdout]  --> src/lib.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(convert)]
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cupi` (lib) due to 2 previous errors; 49 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "33665e6ffac2dafc1d4ccbb05f318ba114b04dd4aeafdba89529cabe97fe3034", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33665e6ffac2dafc1d4ccbb05f318ba114b04dd4aeafdba89529cabe97fe3034", kill_on_drop: false }`
[INFO] [stdout] 33665e6ffac2dafc1d4ccbb05f318ba114b04dd4aeafdba89529cabe97fe3034