[INFO] fetching crate little 0.3.0...
[INFO] checking little-0.3.0 against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] extracting crate little 0.3.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate little 0.3.0 on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate little 0.3.0
[INFO] finished tweaking crates.io crate little 0.3.0
[INFO] tweaked toml for crates.io crate little 0.3.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a38efe1d4cbdbfc2c7dbe182fc59f7d64ba18e87b6a3db75d91daa5538da5d60
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a38efe1d4cbdbfc2c7dbe182fc59f7d64ba18e87b6a3db75d91daa5538da5d60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a38efe1d4cbdbfc2c7dbe182fc59f7d64ba18e87b6a3db75d91daa5538da5d60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a38efe1d4cbdbfc2c7dbe182fc59f7d64ba18e87b6a3db75d91daa5538da5d60", kill_on_drop: false }`
[INFO] [stdout] a38efe1d4cbdbfc2c7dbe182fc59f7d64ba18e87b6a3db75d91daa5538da5d60
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e9ea1cbb922bca9096ccd889116e7ab5c818aa3c93f2fe1cef13c0db2a915702
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e9ea1cbb922bca9096ccd889116e7ab5c818aa3c93f2fe1cef13c0db2a915702", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking byteorder v0.4.2
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking little v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error/little.rs:20:19
[INFO] [stdout]    |
[INFO] [stdout] 20 |     CallError(Box<error::Error + Sync + Send>),
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error + Sync + Send`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error/little.rs:74:42
[INFO] [stdout]    |
[INFO] [stdout] 74 | pub type LittleResult<V> = Result<V, Box<error::Error>>;
[INFO] [stdout]    |                                          ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/interpreter.rs:50:42
[INFO] [stdout]    |
[INFO] [stdout] 50 |         calls: &'a HashMap<&'a str, &'a (Function<V> + 'a)>
[INFO] [stdout]    |                                          ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Function<V> + 'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/interpreter.rs:64:75
[INFO] [stdout]    |
[INFO] [stdout] 64 |     fn load(&'a mut self, id: &str, env: Fingerprint, calls: &'a Vec<&'a (Function<V> + 'a)>)
[INFO] [stdout]    |                                                                           ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Function<V> + 'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/interpreter.rs:75:30
[INFO] [stdout]    |
[INFO] [stdout] 75 |     calls: Options<Call, &'a Function<V>>,
[INFO] [stdout]    |                              ^^^^^^^^^^^ help: use `dyn`: `dyn Function<V>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/interpreter.rs:134:25
[INFO] [stdout]     |
[INFO] [stdout] 134 |                         try!(write!(self.buf, "{}", try!(self.values.get_mem_value(location))))
[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/interpreter.rs:134:53
[INFO] [stdout]     |
[INFO] [stdout] 134 |                         try!(write!(self.buf, "{}", try!(self.values.get_mem_value(location))))
[INFO] [stdout]     |                                                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/interpreter.rs:146:37
[INFO] [stdout]     |
[INFO] [stdout] 146 |                         let value = try!(self.values.get_mem_value(location)).into_owned();
[INFO] [stdout]     |                                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/interpreter.rs:150:37
[INFO] [stdout]     |
[INFO] [stdout] 150 |                         let value = try!(self.values.get_mem_value(location)).into_owned();
[INFO] [stdout]     |                                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/interpreter.rs:158:37
[INFO] [stdout]     |
[INFO] [stdout] 158 |                         let value = try!(self.values.get_mem_value(location));
[INFO] [stdout]     |                                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BuildError`
[INFO] [stdout]  --> src/compiler.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     BuildError,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/compiler.rs:30:42
[INFO] [stdout]    |
[INFO] [stdout] 30 |         calls: &'a HashMap<&'a str, &'a (Function<V> + 'a)>
[INFO] [stdout]    |                                          ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Function<V> + 'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/compiler.rs:36:75
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn load(&'a mut self, id: &str, env: Fingerprint, calls: &'a Vec<&'a (Function<V> + 'a)>)
[INFO] [stdout]    |                                                                           ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Function<V> + 'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/stream.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!(writer.write_all(&buf[..len]));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/stream.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 59 |     try!(input.seek(SeekFrom::Start(loc)));
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/bytecode.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |         try!(output.write_u32::<LittleEndian>(self.magic));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/bytecode.rs:78:20
[INFO] [stdout]    |
[INFO] [stdout] 78 |             magic: try!(input.read_u32::<LittleEndian>())
[INFO] [stdout]    |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:145:42
[INFO] [stdout]     |
[INFO] [stdout] 145 |         calls: &'a HashMap<&'a str, &'a (Function<V> + 'a)>
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Function<V> + 'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:149:75
[INFO] [stdout]     |
[INFO] [stdout] 149 |     fn load(&'a mut self, id: &str, env: Fingerprint, calls: &'a Vec<&'a (Function<V> + 'a)>)
[INFO] [stdout]     |                                                                           ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Function<V> + 'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error/seek.rs:27:37
[INFO] [stdout]    |
[INFO] [stdout] 27 |             SeekError::Io(ref e) => error::Error::description(e),
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error/little.rs:64:48
[INFO] [stdout]    |
[INFO] [stdout] 64 |             LittleError::CallError(ref e) => e.description(),
[INFO] [stdout]    |                                                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error/little.rs:65:49
[INFO] [stdout]    |
[INFO] [stdout] 65 |             LittleError::BuildError(ref e) => e.description(),
[INFO] [stdout]    |                                                 ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]   --> src/lib.rs:14:22
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::io::{ self, Write };
[INFO] [stdout]    |                      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/interpreter.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::{ Read, Write };
[INFO] [stdout]   |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]   --> src/interpreter.rs:64:27
[INFO] [stdout]    |
[INFO] [stdout] 64 |     fn load(&'a mut self, id: &str, env: Fingerprint, calls: &'a Vec<&'a (Function<V> + 'a)>)
[INFO] [stdout]    |                           ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]   --> src/interpreter.rs:64:37
[INFO] [stdout]    |
[INFO] [stdout] 64 |     fn load(&'a mut self, id: &str, env: Fingerprint, calls: &'a Vec<&'a (Function<V> + 'a)>)
[INFO] [stdout]    |                                     ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `calls`
[INFO] [stdout]   --> src/interpreter.rs:64:55
[INFO] [stdout]    |
[INFO] [stdout] 64 |     fn load(&'a mut self, id: &str, env: Fingerprint, calls: &'a Vec<&'a (Function<V> + 'a)>)
[INFO] [stdout]    |                                                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_calls`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/interpreter.rs:136:45
[INFO] [stdout]     |
[INFO] [stdout] 136 |                     Instruction::Property { mut name } => {
[INFO] [stdout]     |                                             ^^^^^^^^ help: try ignoring the field: `name: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/interpreter.rs:267:30
[INFO] [stdout]     |
[INFO] [stdout] 267 |             Mem::Parameter { name } => {
[INFO] [stdout]     |                              ^^^^ help: try ignoring the field: `name: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]   --> src/compiler.rs:36:27
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn load(&'a mut self, id: &str, env: Fingerprint, calls: &'a Vec<&'a (Function<V> + 'a)>)
[INFO] [stdout]    |                           ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]   --> src/compiler.rs:36:37
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn load(&'a mut self, id: &str, env: Fingerprint, calls: &'a Vec<&'a (Function<V> + 'a)>)
[INFO] [stdout]    |                                     ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `calls`
[INFO] [stdout]   --> src/compiler.rs:36:55
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn load(&'a mut self, id: &str, env: Fingerprint, calls: &'a Vec<&'a (Function<V> + 'a)>)
[INFO] [stdout]    |                                                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_calls`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/compiler.rs:68:24
[INFO] [stdout]    |
[INFO] [stdout] 68 |     fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
[INFO] [stdout]    |                        ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/compiler.rs:80:29
[INFO] [stdout]    |
[INFO] [stdout] 80 |         pub fn output<I, O>(input: &mut I, output: &mut O)
[INFO] [stdout]    |                             ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `output`
[INFO] [stdout]   --> src/compiler.rs:80:44
[INFO] [stdout]    |
[INFO] [stdout] 80 |         pub fn output<I, O>(input: &mut I, output: &mut O)
[INFO] [stdout]    |                                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_output`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/interpreter.rs:136:45
[INFO] [stdout]     |
[INFO] [stdout] 136 |                     Instruction::Property { mut name } => {
[INFO] [stdout]     |                                             ----^^^^
[INFO] [stdout]     |                                             |
[INFO] [stdout]     |                                             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `template_ooo`
[INFO] [stdout]   --> src/compiler.rs:77:16
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub struct template_ooo;
[INFO] [stdout]    |                ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `output`
[INFO] [stdout]   --> src/compiler.rs:80:16
[INFO] [stdout]    |
[INFO] [stdout] 80 |         pub fn output<I, O>(input: &mut I, output: &mut O)
[INFO] [stdout]    |                ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 38 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking env_logger v0.3.5
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> tests/compiler.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #[macro_use] extern crate log;
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> examples/hello_world.rs:61:45
[INFO] [stdout]    |
[INFO] [stdout] 61 |     let mut funs = HashMap::<&'static str, &Function<Value>>::new();
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Function<Value>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> tests/interpreter.rs:244:33
[INFO] [stdout]     |
[INFO] [stdout] 244 |     funs.insert("add", &add as &Function<Value>);
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Function<Value>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error/little.rs:20:19
[INFO] [stdout]    |
[INFO] [stdout] 20 |     CallError(Box<error::Error + Sync + Send>),
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error + Sync + Send`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error/little.rs:74:42
[INFO] [stdout]    |
[INFO] [stdout] 74 | pub type LittleResult<V> = Result<V, Box<error::Error>>;
[INFO] [stdout]    |                                          ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/interpreter.rs:50:42
[INFO] [stdout]    |
[INFO] [stdout] 50 |         calls: &'a HashMap<&'a str, &'a (Function<V> + 'a)>
[INFO] [stdout]    |                                          ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Function<V> + 'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/interpreter.rs:64:75
[INFO] [stdout]    |
[INFO] [stdout] 64 |     fn load(&'a mut self, id: &str, env: Fingerprint, calls: &'a Vec<&'a (Function<V> + 'a)>)
[INFO] [stdout]    |                                                                           ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Function<V> + 'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/interpreter.rs:75:30
[INFO] [stdout]    |
[INFO] [stdout] 75 |     calls: Options<Call, &'a Function<V>>,
[INFO] [stdout]    |                              ^^^^^^^^^^^ help: use `dyn`: `dyn Function<V>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/interpreter.rs:134:25
[INFO] [stdout]     |
[INFO] [stdout] 134 |                         try!(write!(self.buf, "{}", try!(self.values.get_mem_value(location))))
[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/interpreter.rs:134:53
[INFO] [stdout]     |
[INFO] [stdout] 134 |                         try!(write!(self.buf, "{}", try!(self.values.get_mem_value(location))))
[INFO] [stdout]     |                                                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/interpreter.rs:146:37
[INFO] [stdout]     |
[INFO] [stdout] 146 |                         let value = try!(self.values.get_mem_value(location)).into_owned();
[INFO] [stdout]     |                                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/interpreter.rs:150:37
[INFO] [stdout]     |
[INFO] [stdout] 150 |                         let value = try!(self.values.get_mem_value(location)).into_owned();
[INFO] [stdout]     |                                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/interpreter.rs:158:37
[INFO] [stdout]     |
[INFO] [stdout] 158 |                         let value = try!(self.values.get_mem_value(location));
[INFO] [stdout]     |                                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BuildError`
[INFO] [stdout]  --> src/compiler.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     BuildError,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/compiler.rs:30:42
[INFO] [stdout]    |
[INFO] [stdout] 30 |         calls: &'a HashMap<&'a str, &'a (Function<V> + 'a)>
[INFO] [stdout]    |                                          ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Function<V> + 'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/compiler.rs:36:75
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn load(&'a mut self, id: &str, env: Fingerprint, calls: &'a Vec<&'a (Function<V> + 'a)>)
[INFO] [stdout]    |                                                                           ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Function<V> + 'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/stream.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!(writer.write_all(&buf[..len]));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/stream.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 59 |     try!(input.seek(SeekFrom::Start(loc)));
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/bytecode.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |         try!(output.write_u32::<LittleEndian>(self.magic));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/bytecode.rs:78:20
[INFO] [stdout]    |
[INFO] [stdout] 78 |             magic: try!(input.read_u32::<LittleEndian>())
[INFO] [stdout]    |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:145:42
[INFO] [stdout]     |
[INFO] [stdout] 145 |         calls: &'a HashMap<&'a str, &'a (Function<V> + 'a)>
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Function<V> + 'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:149:75
[INFO] [stdout]     |
[INFO] [stdout] 149 |     fn load(&'a mut self, id: &str, env: Fingerprint, calls: &'a Vec<&'a (Function<V> + 'a)>)
[INFO] [stdout]     |                                                                           ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Function<V> + 'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> examples/hello_world.rs:4:22
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::{ Read, Write };
[INFO] [stdout]   |                      ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error/seek.rs:27:37
[INFO] [stdout]    |
[INFO] [stdout] 27 |             SeekError::Io(ref e) => error::Error::description(e),
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> tests/interpreter.rs:34:43
[INFO] [stdout]    |
[INFO] [stdout] 34 |     assert_eq!("constant is missing", res.description());
[INFO] [stdout]    |                                           ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> tests/interpreter.rs:60:25
[INFO] [stdout]    |
[INFO] [stdout] 60 |                 match e.description() {
[INFO] [stdout]    |                         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> tests/interpreter.rs:93:43
[INFO] [stdout]    |
[INFO] [stdout] 93 |     assert_eq!("constant is missing", res.description());
[INFO] [stdout]    |                                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> tests/interpreter.rs:116:39
[INFO] [stdout]     |
[INFO] [stdout] 116 |     assert_eq!("stack underflow", res.description());
[INFO] [stdout]     |                                       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `output_param`
[INFO] [stdout]   --> tests/compiler.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn output_param() {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error/little.rs:64:48
[INFO] [stdout]    |
[INFO] [stdout] 64 |             LittleError::CallError(ref e) => e.description(),
[INFO] [stdout]    |                                                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error/little.rs:65:49
[INFO] [stdout]    |
[INFO] [stdout] 65 |             LittleError::BuildError(ref e) => e.description(),
[INFO] [stdout]    |                                                 ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]   --> src/lib.rs:14:22
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::io::{ self, Write };
[INFO] [stdout]    |                      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/interpreter.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::{ Read, Write };
[INFO] [stdout]   |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]   --> src/interpreter.rs:64:27
[INFO] [stdout]    |
[INFO] [stdout] 64 |     fn load(&'a mut self, id: &str, env: Fingerprint, calls: &'a Vec<&'a (Function<V> + 'a)>)
[INFO] [stdout]    |                           ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]   --> src/interpreter.rs:64:37
[INFO] [stdout]    |
[INFO] [stdout] 64 |     fn load(&'a mut self, id: &str, env: Fingerprint, calls: &'a Vec<&'a (Function<V> + 'a)>)
[INFO] [stdout]    |                                     ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `calls`
[INFO] [stdout]   --> src/interpreter.rs:64:55
[INFO] [stdout]    |
[INFO] [stdout] 64 |     fn load(&'a mut self, id: &str, env: Fingerprint, calls: &'a Vec<&'a (Function<V> + 'a)>)
[INFO] [stdout]    |                                                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_calls`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/interpreter.rs:136:45
[INFO] [stdout]     |
[INFO] [stdout] 136 |                     Instruction::Property { mut name } => {
[INFO] [stdout]     |                                             ^^^^^^^^ help: try ignoring the field: `name: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/interpreter.rs:267:30
[INFO] [stdout]     |
[INFO] [stdout] 267 |             Mem::Parameter { name } => {
[INFO] [stdout]     |                              ^^^^ help: try ignoring the field: `name: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]   --> src/compiler.rs:36:27
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn load(&'a mut self, id: &str, env: Fingerprint, calls: &'a Vec<&'a (Function<V> + 'a)>)
[INFO] [stdout]    |                           ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]   --> src/compiler.rs:36:37
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn load(&'a mut self, id: &str, env: Fingerprint, calls: &'a Vec<&'a (Function<V> + 'a)>)
[INFO] [stdout]    |                                     ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `calls`
[INFO] [stdout]   --> src/compiler.rs:36:55
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn load(&'a mut self, id: &str, env: Fingerprint, calls: &'a Vec<&'a (Function<V> + 'a)>)
[INFO] [stdout]    |                                                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_calls`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/compiler.rs:68:24
[INFO] [stdout]    |
[INFO] [stdout] 68 |     fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
[INFO] [stdout]    |                        ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/compiler.rs:80:29
[INFO] [stdout]    |
[INFO] [stdout] 80 |         pub fn output<I, O>(input: &mut I, output: &mut O)
[INFO] [stdout]    |                             ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `output`
[INFO] [stdout]   --> src/compiler.rs:80:44
[INFO] [stdout]    |
[INFO] [stdout] 80 |         pub fn output<I, O>(input: &mut I, output: &mut O)
[INFO] [stdout]    |                                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_output`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/interpreter.rs:136:45
[INFO] [stdout]     |
[INFO] [stdout] 136 |                     Instruction::Property { mut name } => {
[INFO] [stdout]     |                                             ----^^^^
[INFO] [stdout]     |                                             |
[INFO] [stdout]     |                                             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `template_ooo`
[INFO] [stdout]   --> src/compiler.rs:77:16
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub struct template_ooo;
[INFO] [stdout]    |                ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `output`
[INFO] [stdout]   --> src/compiler.rs:80:16
[INFO] [stdout]    |
[INFO] [stdout] 80 |         pub fn output<I, O>(input: &mut I, output: &mut O)
[INFO] [stdout]    |                ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 38 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.76s
[INFO] running `Command { std: "docker" "inspect" "e9ea1cbb922bca9096ccd889116e7ab5c818aa3c93f2fe1cef13c0db2a915702", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9ea1cbb922bca9096ccd889116e7ab5c818aa3c93f2fe1cef13c0db2a915702", kill_on_drop: false }`
[INFO] [stdout] e9ea1cbb922bca9096ccd889116e7ab5c818aa3c93f2fe1cef13c0db2a915702