[INFO] crate little 0.3.0 is already in cache [INFO] extracting crate little 0.3.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/little/0.3.0 [INFO] extracting crate little 0.3.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/little/0.3.0 [INFO] validating manifest of little-0.3.0 on toolchain 1.37.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of little-0.3.0 on toolchain beta-2019-08-13 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing little-0.3.0 [INFO] finished frobbing little-0.3.0 [INFO] frobbed toml for little-0.3.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/little/0.3.0/Cargo.toml [INFO] started frobbing little-0.3.0 [INFO] finished frobbing little-0.3.0 [INFO] frobbed toml for little-0.3.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/little/0.3.0/Cargo.toml [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing little-0.3.0 against beta-2019-08-13 for beta-1.38-1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/little/0.3.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "build" "--frozen"` [INFO] [stdout] 72c14bb9858c0c78aa809640c6ef45d3fbb9fd5eab527efe443909690b98e87e [INFO] running `"docker" "start" "-a" "72c14bb9858c0c78aa809640c6ef45d3fbb9fd5eab527efe443909690b98e87e"` [INFO] [stderr] Compiling little v0.3.0 (/opt/crater/workdir) [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/error/little.rs:20:19 [INFO] [stderr] | [INFO] [stderr] 20 | CallError(Box), [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error + Sync + Send` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/error/little.rs:74:42 [INFO] [stderr] | [INFO] [stderr] 74 | pub type LittleResult = Result>; [INFO] [stderr] | ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/interpreter.rs:50:42 [INFO] [stderr] | [INFO] [stderr] 50 | calls: &'a HashMap<&'a str, &'a (Function + 'a)> [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Function + 'a` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/interpreter.rs:64:75 [INFO] [stderr] | [INFO] [stderr] 64 | fn load(&'a mut self, id: &str, env: Fingerprint, calls: &'a Vec<&'a (Function + 'a)>) [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Function + 'a` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/interpreter.rs:75:30 [INFO] [stderr] | [INFO] [stderr] 75 | calls: Options>, [INFO] [stderr] | ^^^^^^^^^^^ help: use `dyn`: `dyn Function` [INFO] [stderr] [INFO] [stderr] warning: unused import: `BuildError` [INFO] [stderr] --> src/compiler.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | BuildError, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/compiler.rs:30:42 [INFO] [stderr] | [INFO] [stderr] 30 | calls: &'a HashMap<&'a str, &'a (Function + 'a)> [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Function + 'a` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/compiler.rs:36:75 [INFO] [stderr] | [INFO] [stderr] 36 | fn load(&'a mut self, id: &str, env: Fingerprint, calls: &'a Vec<&'a (Function + 'a)>) [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Function + 'a` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/lib.rs:145:42 [INFO] [stderr] | [INFO] [stderr] 145 | calls: &'a HashMap<&'a str, &'a (Function + 'a)> [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Function + 'a` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/lib.rs:149:75 [INFO] [stderr] | [INFO] [stderr] 149 | fn load(&'a mut self, id: &str, env: Fingerprint, calls: &'a Vec<&'a (Function + 'a)>) [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Function + 'a` [INFO] [stderr] [INFO] [stderr] warning: unused import: `Write` [INFO] [stderr] --> src/lib.rs:14:22 [INFO] [stderr] | [INFO] [stderr] 14 | use std::io::{ self, Write }; [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `Read` [INFO] [stderr] --> src/interpreter.rs:4:16 [INFO] [stderr] | [INFO] [stderr] 4 | use std::io::{ Read, Write }; [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `id` [INFO] [stderr] --> src/interpreter.rs:64:27 [INFO] [stderr] | [INFO] [stderr] 64 | fn load(&'a mut self, id: &str, env: Fingerprint, calls: &'a Vec<&'a (Function + 'a)>) [INFO] [stderr] | ^^ help: consider prefixing with an underscore: `_id` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `env` [INFO] [stderr] --> src/interpreter.rs:64:37 [INFO] [stderr] | [INFO] [stderr] 64 | fn load(&'a mut self, id: &str, env: Fingerprint, calls: &'a Vec<&'a (Function + 'a)>) [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_env` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `calls` [INFO] [stderr] --> src/interpreter.rs:64:55 [INFO] [stderr] | [INFO] [stderr] 64 | fn load(&'a mut self, id: &str, env: Fingerprint, calls: &'a Vec<&'a (Function + 'a)>) [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_calls` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `name` [INFO] [stderr] --> src/interpreter.rs:136:49 [INFO] [stderr] | [INFO] [stderr] 136 | Instruction::Property { mut name } => { [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: try ignoring the field: `name: _` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `name` [INFO] [stderr] --> src/interpreter.rs:267:30 [INFO] [stderr] | [INFO] [stderr] 267 | Mem::Parameter { name } => { [INFO] [stderr] | ^^^^ help: try ignoring the field: `name: _` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `id` [INFO] [stderr] --> src/compiler.rs:36:27 [INFO] [stderr] | [INFO] [stderr] 36 | fn load(&'a mut self, id: &str, env: Fingerprint, calls: &'a Vec<&'a (Function + 'a)>) [INFO] [stderr] | ^^ help: consider prefixing with an underscore: `_id` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `env` [INFO] [stderr] --> src/compiler.rs:36:37 [INFO] [stderr] | [INFO] [stderr] 36 | fn load(&'a mut self, id: &str, env: Fingerprint, calls: &'a Vec<&'a (Function + 'a)>) [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_env` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `calls` [INFO] [stderr] --> src/compiler.rs:36:55 [INFO] [stderr] | [INFO] [stderr] 36 | fn load(&'a mut self, id: &str, env: Fingerprint, calls: &'a Vec<&'a (Function + 'a)>) [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_calls` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `buf` [INFO] [stderr] --> src/compiler.rs:68:24 [INFO] [stderr] | [INFO] [stderr] 68 | fn read(&mut self, buf: &mut [u8]) -> io::Result { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_buf` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `input` [INFO] [stderr] --> src/compiler.rs:80:29 [INFO] [stderr] | [INFO] [stderr] 80 | pub fn output(input: &mut I, output: &mut O) [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_input` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `output` [INFO] [stderr] --> src/compiler.rs:80:44 [INFO] [stderr] | [INFO] [stderr] 80 | pub fn output(input: &mut I, output: &mut O) [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_output` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/interpreter.rs:136:45 [INFO] [stderr] | [INFO] [stderr] 136 | Instruction::Property { mut name } => { [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `template_ooo` [INFO] [stderr] --> src/compiler.rs:77:5 [INFO] [stderr] | [INFO] [stderr] 77 | pub struct template_ooo; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `output` [INFO] [stderr] --> src/compiler.rs:80:9 [INFO] [stderr] | [INFO] [stderr] 80 | / pub fn output(input: &mut I, output: &mut O) [INFO] [stderr] 81 | | -> Result [INFO] [stderr] 82 | | where [INFO] [stderr] 83 | | I: io::Read + io::Seek, O: io::Write [INFO] [stderr] ... | [INFO] [stderr] 86 | | Ok(0) [INFO] [stderr] 87 | | } [INFO] [stderr] | |_________^ [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.90s [INFO] running `"docker" "inspect" "72c14bb9858c0c78aa809640c6ef45d3fbb9fd5eab527efe443909690b98e87e"` [INFO] running `"docker" "rm" "-f" "72c14bb9858c0c78aa809640c6ef45d3fbb9fd5eab527efe443909690b98e87e"` [INFO] [stdout] 72c14bb9858c0c78aa809640c6ef45d3fbb9fd5eab527efe443909690b98e87e [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/little/0.3.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "test" "--frozen" "--no-run"` [INFO] [stdout] 8ed991c7459290f7b106166601196013e3a65606050ad0c727ccc7f25a0e74e6 [INFO] running `"docker" "start" "-a" "8ed991c7459290f7b106166601196013e3a65606050ad0c727ccc7f25a0e74e6"` [INFO] [stderr] Compiling little v0.3.0 (/opt/crater/workdir) [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> examples/hello_world.rs:61:45 [INFO] [stderr] | [INFO] [stderr] 61 | let mut funs = HashMap::<&'static str, &Function>::new(); [INFO] [stderr] | ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Function` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> tests/interpreter.rs:244:33 [INFO] [stderr] | [INFO] [stderr] 244 | funs.insert("add", &add as &Function); [INFO] [stderr] | ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Function` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/error/little.rs:20:19 [INFO] [stderr] | [INFO] [stderr] 20 | CallError(Box), [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error + Sync + Send` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/error/little.rs:74:42 [INFO] [stderr] | [INFO] [stderr] 74 | pub type LittleResult = Result>; [INFO] [stderr] | ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/interpreter.rs:50:42 [INFO] [stderr] | [INFO] [stderr] 50 | calls: &'a HashMap<&'a str, &'a (Function + 'a)> [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Function + 'a` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/interpreter.rs:64:75 [INFO] [stderr] | [INFO] [stderr] 64 | fn load(&'a mut self, id: &str, env: Fingerprint, calls: &'a Vec<&'a (Function + 'a)>) [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Function + 'a` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/interpreter.rs:75:30 [INFO] [stderr] | [INFO] [stderr] 75 | calls: Options>, [INFO] [stderr] | ^^^^^^^^^^^ help: use `dyn`: `dyn Function` [INFO] [stderr] [INFO] [stderr] warning: unused import: `BuildError` [INFO] [stderr] --> src/compiler.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | BuildError, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/compiler.rs:30:42 [INFO] [stderr] | [INFO] [stderr] 30 | calls: &'a HashMap<&'a str, &'a (Function + 'a)> [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Function + 'a` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/compiler.rs:36:75 [INFO] [stderr] | [INFO] [stderr] 36 | fn load(&'a mut self, id: &str, env: Fingerprint, calls: &'a Vec<&'a (Function + 'a)>) [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Function + 'a` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/lib.rs:145:42 [INFO] [stderr] | [INFO] [stderr] 145 | calls: &'a HashMap<&'a str, &'a (Function + 'a)> [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Function + 'a` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/lib.rs:149:75 [INFO] [stderr] | [INFO] [stderr] 149 | fn load(&'a mut self, id: &str, env: Fingerprint, calls: &'a Vec<&'a (Function + 'a)>) [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Function + 'a` [INFO] [stderr] [INFO] [stderr] warning: unused `#[macro_use]` import [INFO] [stderr] --> tests/compiler.rs:2:1 [INFO] [stderr] | [INFO] [stderr] 2 | #[macro_use] extern crate log; [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `Write` [INFO] [stderr] --> examples/hello_world.rs:4:22 [INFO] [stderr] | [INFO] [stderr] 4 | use std::io::{ Read, Write }; [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `output_param` [INFO] [stderr] --> tests/compiler.rs:16:1 [INFO] [stderr] | [INFO] [stderr] 16 | fn output_param() { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `Write` [INFO] [stderr] --> src/lib.rs:14:22 [INFO] [stderr] | [INFO] [stderr] 14 | use std::io::{ self, Write }; [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `Read` [INFO] [stderr] --> src/interpreter.rs:4:16 [INFO] [stderr] | [INFO] [stderr] 4 | use std::io::{ Read, Write }; [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `id` [INFO] [stderr] --> src/interpreter.rs:64:27 [INFO] [stderr] | [INFO] [stderr] 64 | fn load(&'a mut self, id: &str, env: Fingerprint, calls: &'a Vec<&'a (Function + 'a)>) [INFO] [stderr] | ^^ help: consider prefixing with an underscore: `_id` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `env` [INFO] [stderr] --> src/interpreter.rs:64:37 [INFO] [stderr] | [INFO] [stderr] 64 | fn load(&'a mut self, id: &str, env: Fingerprint, calls: &'a Vec<&'a (Function + 'a)>) [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_env` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `calls` [INFO] [stderr] --> src/interpreter.rs:64:55 [INFO] [stderr] | [INFO] [stderr] 64 | fn load(&'a mut self, id: &str, env: Fingerprint, calls: &'a Vec<&'a (Function + 'a)>) [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_calls` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `name` [INFO] [stderr] --> src/interpreter.rs:136:49 [INFO] [stderr] | [INFO] [stderr] 136 | Instruction::Property { mut name } => { [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: try ignoring the field: `name: _` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `name` [INFO] [stderr] --> src/interpreter.rs:267:30 [INFO] [stderr] | [INFO] [stderr] 267 | Mem::Parameter { name } => { [INFO] [stderr] | ^^^^ help: try ignoring the field: `name: _` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `id` [INFO] [stderr] --> src/compiler.rs:36:27 [INFO] [stderr] | [INFO] [stderr] 36 | fn load(&'a mut self, id: &str, env: Fingerprint, calls: &'a Vec<&'a (Function + 'a)>) [INFO] [stderr] | ^^ help: consider prefixing with an underscore: `_id` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `env` [INFO] [stderr] --> src/compiler.rs:36:37 [INFO] [stderr] | [INFO] [stderr] 36 | fn load(&'a mut self, id: &str, env: Fingerprint, calls: &'a Vec<&'a (Function + 'a)>) [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_env` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `calls` [INFO] [stderr] --> src/compiler.rs:36:55 [INFO] [stderr] | [INFO] [stderr] 36 | fn load(&'a mut self, id: &str, env: Fingerprint, calls: &'a Vec<&'a (Function + 'a)>) [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_calls` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `buf` [INFO] [stderr] --> src/compiler.rs:68:24 [INFO] [stderr] | [INFO] [stderr] 68 | fn read(&mut self, buf: &mut [u8]) -> io::Result { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_buf` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `input` [INFO] [stderr] --> src/compiler.rs:80:29 [INFO] [stderr] | [INFO] [stderr] 80 | pub fn output(input: &mut I, output: &mut O) [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_input` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `output` [INFO] [stderr] --> src/compiler.rs:80:44 [INFO] [stderr] | [INFO] [stderr] 80 | pub fn output(input: &mut I, output: &mut O) [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_output` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/interpreter.rs:136:45 [INFO] [stderr] | [INFO] [stderr] 136 | Instruction::Property { mut name } => { [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `template_ooo` [INFO] [stderr] --> src/compiler.rs:77:5 [INFO] [stderr] | [INFO] [stderr] 77 | pub struct template_ooo; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `output` [INFO] [stderr] --> src/compiler.rs:80:9 [INFO] [stderr] | [INFO] [stderr] 80 | / pub fn output(input: &mut I, output: &mut O) [INFO] [stderr] 81 | | -> Result [INFO] [stderr] 82 | | where [INFO] [stderr] 83 | | I: io::Read + io::Seek, O: io::Write [INFO] [stderr] ... | [INFO] [stderr] 86 | | Ok(0) [INFO] [stderr] 87 | | } [INFO] [stderr] | |_________^ [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.48s [INFO] running `"docker" "inspect" "8ed991c7459290f7b106166601196013e3a65606050ad0c727ccc7f25a0e74e6"` [INFO] running `"docker" "rm" "-f" "8ed991c7459290f7b106166601196013e3a65606050ad0c727ccc7f25a0e74e6"` [INFO] [stdout] 8ed991c7459290f7b106166601196013e3a65606050ad0c727ccc7f25a0e74e6 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/little/0.3.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "test" "--frozen"` [INFO] [stdout] 7b806c8981df7be874b2eb4d1ad6b185f8a7c36e29c1afaad8b2f8820694c890 [INFO] running `"docker" "start" "-a" "7b806c8981df7be874b2eb4d1ad6b185f8a7c36e29c1afaad8b2f8820694c890"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running /opt/crater/target/debug/deps/little-1bcd11ec26d5e052 [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test stream::test::test_stream ... ok [INFO] [stdout] test bytecode::test::header ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] Running /opt/crater/target/debug/deps/compiler-d571918b728c23cc [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 [INFO] [stdout] [INFO] [stderr] Running /opt/crater/target/debug/deps/interpreter-8668b0d77644e5bb [INFO] [stdout] [INFO] [stdout] running 29 tests [INFO] [stdout] test can_handle_interupt ... ok [INFO] [stdout] test error_if_missing_const ... ok [INFO] [stdout] test exit ... ok [INFO] [stdout] test error_if_pop_empty_stack ... ok [INFO] [stdout] test load_binding_from_binding_stack1_stack2_output3 ... ok [INFO] [stdout] test output_const ... ok [INFO] [stdout] test load_binding_from_const_output_binding ... ok [INFO] [stdout] test load_binding_from_param_output_binding ... ok [INFO] [stdout] test output_params ... ok [INFO] [stdout] test error_if_missing_constant ... ok [INFO] [stdout] test output_constant_twice ... ok [INFO] [stdout] test output_different_constants ... ok [INFO] [stdout] test push_from_stack_to_stack ... ok [INFO] [stdout] test should_jump ... ok [INFO] [stdout] test run_function ... ok [INFO] [stdout] test push_const_output_stack_top1 ... ok [INFO] [stdout] test push_constants_output_stack_top2 ... ok [INFO] [stdout] test should_not_jump_if_not_eq ... ok [INFO] [stdout] test should_jump_if_ne ... ok [INFO] [stdout] test should_jump_if_lte ... ok [INFO] [stdout] test should_jump_if_lt ... ok [INFO] [stdout] test should_jump_if_gte ... ok [INFO] [stdout] test should_jump_if_gt ... ok [INFO] [stdout] test should_not_jump_if_not_ne ... ok [INFO] [stdout] test should_jump_if_eq ... ok [INFO] [stdout] test should_not_jump_if_not_lt ... ok [INFO] [stdout] test should_not_jump_if_not_lte ... ok [INFO] [stdout] test should_not_jump_if_not_gt ... ok [INFO] [stderr] Doc-tests little [INFO] [stdout] test should_not_jump_if_not_gte ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 29 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test src/stream.rs - stream::buf_copy (line 9) ... ok [INFO] [stdout] test src/stream.rs - stream::seek_and_buf_copy (line 42) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `"docker" "inspect" "7b806c8981df7be874b2eb4d1ad6b185f8a7c36e29c1afaad8b2f8820694c890"` [INFO] running `"docker" "rm" "-f" "7b806c8981df7be874b2eb4d1ad6b185f8a7c36e29c1afaad8b2f8820694c890"` [INFO] [stdout] 7b806c8981df7be874b2eb4d1ad6b185f8a7c36e29c1afaad8b2f8820694c890