[INFO] fetching crate rust_lisp 0.1.0...
[INFO] checking rust_lisp-0.1.0 against master#7b3a7819371cef92a187e9bac8f7810ccde15216 for pr-74846
[INFO] extracting crate rust_lisp 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate rust_lisp 0.1.0 on toolchain 7b3a7819371cef92a187e9bac8f7810ccde15216
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rust_lisp 0.1.0
[INFO] finished tweaking crates.io crate rust_lisp 0.1.0
[INFO] tweaked toml for crates.io crate rust_lisp 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate rust_lisp 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d887e8319c94d871986088d4e0a0a336014c6f7bf890b1103a15091f1cd1c0ef
[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" "d887e8319c94d871986088d4e0a0a336014c6f7bf890b1103a15091f1cd1c0ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d887e8319c94d871986088d4e0a0a336014c6f7bf890b1103a15091f1cd1c0ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d887e8319c94d871986088d4e0a0a336014c6f7bf890b1103a15091f1cd1c0ef", kill_on_drop: false }`
[INFO] [stdout] d887e8319c94d871986088d4e0a0a336014c6f7bf890b1103a15091f1cd1c0ef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8a4802e11d72d5d093b14a521f5063e75f610123961a3cc444d27bd90d4dfd24
[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" "8a4802e11d72d5d093b14a521f5063e75f610123961a3cc444d27bd90d4dfd24", kill_on_drop: false }`
[INFO] [stderr]     Checking rust_lisp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]    --> src/model.rs:285:16
[INFO] [stdout]     |
[INFO] [stdout] 285 |   fn eq(&self, other: &Self) -> bool {
[INFO] [stdout]     |                ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]    --> src/model.rs:285:16
[INFO] [stdout]     |
[INFO] [stdout] 285 |   fn eq(&self, other: &Self) -> bool {
[INFO] [stdout]     |                ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]    --> src/model.rs:285:16
[INFO] [stdout]     |
[INFO] [stdout] 285 |   fn eq(&self, other: &Self) -> bool {
[INFO] [stdout]     |                ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]    --> src/model.rs:285:16
[INFO] [stdout]     |
[INFO] [stdout] 285 |   fn eq(&self, other: &Self) -> bool {
[INFO] [stdout]     |                ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Atom`
[INFO] [stdout]  --> src/parser.rs:9:3
[INFO] [stdout]   |
[INFO] [stdout] 9 |   Atom{atom: Value, quoted: bool},
[INFO] [stdout]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `List`
[INFO] [stdout]   --> src/parser.rs:10:3
[INFO] [stdout]    |
[INFO] [stdout] 10 |   List{vec: Vec<ParseTree>, quoted: bool},
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `into_expression`
[INFO] [stdout]   --> src/parser.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 15 |   pub fn into_expression(self) -> Value {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `SPECIAL_TOKENS`
[INFO] [stdout]   --> src/parser.rs:43:1
[INFO] [stdout]    |
[INFO] [stdout] 43 | const SPECIAL_TOKENS: [&str;4] = [ "(", ")", ";;", "'" ];
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `tokenize`
[INFO] [stdout]   --> src/parser.rs:46:4
[INFO] [stdout]    |
[INFO] [stdout] 46 | fn tokenize(code: &str) -> Vec<String> {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `read`
[INFO] [stdout]    --> src/parser.rs:123:4
[INFO] [stdout]     |
[INFO] [stdout] 123 | fn read(tokens: &Vec<String>) -> Result<Vec<Value>,ParseError> {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `read_atom`
[INFO] [stdout]    --> src/parser.rs:193:4
[INFO] [stdout]     |
[INFO] [stdout] 193 | fn read_atom(token: &str) -> Value {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse`
[INFO] [stdout]    --> src/parser.rs:229:8
[INFO] [stdout]     |
[INFO] [stdout] 229 | pub fn parse(code: &str) -> Result<Vec<Value>,ParseError> {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `default_env`
[INFO] [stdout]  --> src/default_environment.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn default_env() -> Env {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `evaluate_block`
[INFO] [stdout]  --> src/interpreter.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn evaluate_block(env: Rc<RefCell<Env>>, body: &Value) -> Result<Value,RuntimeError> {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `eval`
[INFO] [stdout]   --> src/interpreter.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub fn eval(env: Rc<RefCell<Env>>, expression: &Value) -> Result<Value,RuntimeError> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `require_parameter`
[INFO] [stdout]   --> src/utils.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn require_parameter<'a>(func_name: &str, args: &'a Vec<Value>, index: usize) -> Result<&'a Value,RuntimeError> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `require_int_parameter`
[INFO] [stdout]   --> src/utils.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn require_int_parameter(func_name: &str, args: &Vec<Value>, index: usize) -> Result<i32,RuntimeError> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `require_float_parameter`
[INFO] [stdout]   --> src/utils.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub fn require_float_parameter(func_name: &str, args: &Vec<Value>, index: usize) -> Result<f32,RuntimeError> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `require_string_parameter`
[INFO] [stdout]   --> src/utils.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub fn require_string_parameter<'a>(func_name: &str, args: &'a Vec<Value>, index: usize) -> Result<&'a str,RuntimeError> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `require_list_parameter`
[INFO] [stdout]   --> src/utils.rs:69:8
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub fn require_list_parameter<'a>(func_name: &str, args: &'a Vec<Value>, index: usize) -> Result<&'a Value,RuntimeError> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `vec_to_cons`
[INFO] [stdout]   --> src/utils.rs:84:8
[INFO] [stdout]    |
[INFO] [stdout] 84 | pub fn vec_to_cons(vec: &Vec<Value>) -> Value {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `vec_refs_to_cons`
[INFO] [stdout]    --> src/utils.rs:101:8
[INFO] [stdout]     |
[INFO] [stdout] 101 | pub fn vec_refs_to_cons(vec: &Vec<&Value>) -> Value {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Atom`
[INFO] [stdout]  --> src/parser.rs:9:3
[INFO] [stdout]   |
[INFO] [stdout] 9 |   Atom{atom: Value, quoted: bool},
[INFO] [stdout]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `List`
[INFO] [stdout]   --> src/parser.rs:10:3
[INFO] [stdout]    |
[INFO] [stdout] 10 |   List{vec: Vec<ParseTree>, quoted: bool},
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `into_expression`
[INFO] [stdout]   --> src/parser.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 15 |   pub fn into_expression(self) -> Value {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `SPECIAL_TOKENS`
[INFO] [stdout]   --> src/parser.rs:43:1
[INFO] [stdout]    |
[INFO] [stdout] 43 | const SPECIAL_TOKENS: [&str;4] = [ "(", ")", ";;", "'" ];
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `tokenize`
[INFO] [stdout]   --> src/parser.rs:46:4
[INFO] [stdout]    |
[INFO] [stdout] 46 | fn tokenize(code: &str) -> Vec<String> {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `read`
[INFO] [stdout]    --> src/parser.rs:123:4
[INFO] [stdout]     |
[INFO] [stdout] 123 | fn read(tokens: &Vec<String>) -> Result<Vec<Value>,ParseError> {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `read_atom`
[INFO] [stdout]    --> src/parser.rs:193:4
[INFO] [stdout]     |
[INFO] [stdout] 193 | fn read_atom(token: &str) -> Value {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse`
[INFO] [stdout]    --> src/parser.rs:229:8
[INFO] [stdout]     |
[INFO] [stdout] 229 | pub fn parse(code: &str) -> Result<Vec<Value>,ParseError> {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `default_env`
[INFO] [stdout]  --> src/default_environment.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn default_env() -> Env {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `evaluate_block`
[INFO] [stdout]  --> src/interpreter.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn evaluate_block(env: Rc<RefCell<Env>>, body: &Value) -> Result<Value,RuntimeError> {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `eval`
[INFO] [stdout]   --> src/interpreter.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub fn eval(env: Rc<RefCell<Env>>, expression: &Value) -> Result<Value,RuntimeError> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `require_parameter`
[INFO] [stdout]   --> src/utils.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn require_parameter<'a>(func_name: &str, args: &'a Vec<Value>, index: usize) -> Result<&'a Value,RuntimeError> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `require_int_parameter`
[INFO] [stdout]   --> src/utils.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn require_int_parameter(func_name: &str, args: &Vec<Value>, index: usize) -> Result<i32,RuntimeError> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `require_float_parameter`
[INFO] [stdout]   --> src/utils.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub fn require_float_parameter(func_name: &str, args: &Vec<Value>, index: usize) -> Result<f32,RuntimeError> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `require_string_parameter`
[INFO] [stdout]   --> src/utils.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub fn require_string_parameter<'a>(func_name: &str, args: &'a Vec<Value>, index: usize) -> Result<&'a str,RuntimeError> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `require_list_parameter`
[INFO] [stdout]   --> src/utils.rs:69:8
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub fn require_list_parameter<'a>(func_name: &str, args: &'a Vec<Value>, index: usize) -> Result<&'a Value,RuntimeError> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `vec_to_cons`
[INFO] [stdout]   --> src/utils.rs:84:8
[INFO] [stdout]    |
[INFO] [stdout] 84 | pub fn vec_to_cons(vec: &Vec<Value>) -> Value {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `vec_refs_to_cons`
[INFO] [stdout]    --> src/utils.rs:101:8
[INFO] [stdout]     |
[INFO] [stdout] 101 | pub fn vec_refs_to_cons(vec: &Vec<&Value>) -> Value {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.65s
[INFO] running `Command { std: "docker" "inspect" "8a4802e11d72d5d093b14a521f5063e75f610123961a3cc444d27bd90d4dfd24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a4802e11d72d5d093b14a521f5063e75f610123961a3cc444d27bd90d4dfd24", kill_on_drop: false }`
[INFO] [stdout] 8a4802e11d72d5d093b14a521f5063e75f610123961a3cc444d27bd90d4dfd24