[INFO] updating cached repository https://github.com/AlmightyFloppyFish/leaf
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/AlmightyFloppyFish/leaf
[INFO] [stderr]    a13aaf4..f787aff  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f787aff59edd329fd1e25c89c676b9b23f63cfba
[INFO] checking AlmightyFloppyFish/leaf against master#0d2817a439c2ad9fe343f6347eb6d90947893363 for pr-67531
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlmightyFloppyFish%2Fleaf" "/workspace/builds/worker-9/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AlmightyFloppyFish/leaf on toolchain 0d2817a439c2ad9fe343f6347eb6d90947893363
[INFO] running `"/workspace/cargo-home/bin/cargo" "+0d2817a439c2ad9fe343f6347eb6d90947893363" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/AlmightyFloppyFish/leaf
[INFO] finished tweaking git repo https://github.com/AlmightyFloppyFish/leaf
[INFO] tweaked toml for git repo https://github.com/AlmightyFloppyFish/leaf written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/AlmightyFloppyFish/leaf already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+0d2817a439c2ad9fe343f6347eb6d90947893363" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+0d2817a439c2ad9fe343f6347eb6d90947893363" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 78851f7619c77966e57f1921b1469961ba341920ae1fdd00829d62ee9fe26971
[INFO] running `"docker" "start" "-a" "78851f7619c77966e57f1921b1469961ba341920ae1fdd00829d62ee9fe26971"`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]     Checking termion v1.5.3
[INFO] [stderr]     Checking leaf v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::ops::Deref`
[INFO] [stderr]  --> src/parser/tracked.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::ops::Deref;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ops::Deref`
[INFO] [stderr]  --> src/parser/tracked.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::ops::Deref;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tokenizer`
[INFO] [stderr]   --> src/parser/type.rs:65:5
[INFO] [stderr]    |
[INFO] [stderr] 65 |     tokenizer: &mut Tokenizer<I>,
[INFO] [stderr]    |     ^^^^^^^^^ help: consider prefixing with an underscore: `_tokenizer`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ident`
[INFO] [stderr]    --> src/parser/ast/checker.rs:195:37
[INFO] [stderr]     |
[INFO] [stderr] 195 |                 ast::Passable::Func(ident) => {
[INFO] [stderr]     |                                     ^^^^^ help: consider prefixing with an underscore: `_ident`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ident`
[INFO] [stderr]    --> src/parser/ast/checker.rs:198:44
[INFO] [stderr]     |
[INFO] [stderr] 198 |                 ast::Passable::PartialFunc(ident, pre_given) => {
[INFO] [stderr]     |                                            ^^^^^ help: consider prefixing with an underscore: `_ident`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pre_given`
[INFO] [stderr]    --> src/parser/ast/checker.rs:198:51
[INFO] [stderr]     |
[INFO] [stderr] 198 |                 ast::Passable::PartialFunc(ident, pre_given) => {
[INFO] [stderr]     |                                                   ^^^^^^^^^ help: consider prefixing with an underscore: `_pre_given`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `inlinable`
[INFO] [stderr]    --> src/parser/ast/checker.rs:222:38
[INFO] [stderr]     |
[INFO] [stderr] 222 |                 ast::Passable::Value(inlinable) => {
[INFO] [stderr]     |                                      ^^^^^^^^^ help: consider prefixing with an underscore: `_inlinable`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `params`
[INFO] [stderr]    --> src/parser/ast/checker.rs:257:33
[INFO] [stderr]     |
[INFO] [stderr] 257 |             ast::Entity::Lambda(params, body) => {
[INFO] [stderr]     |                                 ^^^^^^ help: consider prefixing with an underscore: `_params`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `body`
[INFO] [stderr]    --> src/parser/ast/checker.rs:257:41
[INFO] [stderr]     |
[INFO] [stderr] 257 |             ast::Entity::Lambda(params, body) => {
[INFO] [stderr]     |                                         ^^^^ help: consider prefixing with an underscore: `_body`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `branches`
[INFO] [stderr]    --> src/parser/error.rs:337:42
[INFO] [stderr]     |
[INFO] [stderr] 337 |             IfBranchTypeMismatch(types, (branches, else_do)) => write!(f, "ERROR TODO: Properly display if statement typing.\n These branches don't return the same value\n{:?}", types),
[INFO] [stderr]     |                                          ^^^^^^^^ help: consider prefixing with an underscore: `_branches`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `else_do`
[INFO] [stderr]    --> src/parser/error.rs:337:52
[INFO] [stderr]     |
[INFO] [stderr] 337 |             IfBranchTypeMismatch(types, (branches, else_do)) => write!(f, "ERROR TODO: Properly display if statement typing.\n These branches don't return the same value\n{:?}", types),
[INFO] [stderr]     |                                                    ^^^^^^^ help: consider prefixing with an underscore: `_else_do`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `id`
[INFO] [stderr]   --> src/interpreter/runner.rs:96:54
[INFO] [stderr]    |
[INFO] [stderr] 96 | ...                   Capturable::ParentLambda(id) =...
[INFO] [stderr]    |                                                ^^ help: consider prefixing with an underscore: `_id`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `id`
[INFO] [stderr]   --> src/interpreter/runner/bridge.rs:41:23
[INFO] [stderr]    |
[INFO] [stderr] 41 | pub fn get_func_write(id: u16) -> fn(&Value, &mut Value) {
[INFO] [stderr]    |                       ^^ help: consider prefixing with an underscore: `_id`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tokenizer`
[INFO] [stderr]   --> src/parser/type.rs:65:5
[INFO] [stderr]    |
[INFO] [stderr] 65 |     tokenizer: &mut Tokenizer<I>,
[INFO] [stderr]    |     ^^^^^^^^^ help: consider prefixing with an underscore: `_tokenizer`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ident`
[INFO] [stderr]    --> src/parser/ast/checker.rs:195:37
[INFO] [stderr]     |
[INFO] [stderr] 195 |                 ast::Passable::Func(ident) => {
[INFO] [stderr]     |                                     ^^^^^ help: consider prefixing with an underscore: `_ident`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ident`
[INFO] [stderr]    --> src/parser/ast/checker.rs:198:44
[INFO] [stderr]     |
[INFO] [stderr] 198 |                 ast::Passable::PartialFunc(ident, pre_given) => {
[INFO] [stderr]     |                                            ^^^^^ help: consider prefixing with an underscore: `_ident`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pre_given`
[INFO] [stderr]    --> src/parser/ast/checker.rs:198:51
[INFO] [stderr]     |
[INFO] [stderr] 198 |                 ast::Passable::PartialFunc(ident, pre_given) => {
[INFO] [stderr]     |                                                   ^^^^^^^^^ help: consider prefixing with an underscore: `_pre_given`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `inlinable`
[INFO] [stderr]    --> src/parser/ast/checker.rs:222:38
[INFO] [stderr]     |
[INFO] [stderr] 222 |                 ast::Passable::Value(inlinable) => {
[INFO] [stderr]     |                                      ^^^^^^^^^ help: consider prefixing with an underscore: `_inlinable`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `params`
[INFO] [stderr]    --> src/parser/ast/checker.rs:257:33
[INFO] [stderr]     |
[INFO] [stderr] 257 |             ast::Entity::Lambda(params, body) => {
[INFO] [stderr]     |                                 ^^^^^^ help: consider prefixing with an underscore: `_params`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `body`
[INFO] [stderr]    --> src/parser/ast/checker.rs:257:41
[INFO] [stderr]     |
[INFO] [stderr] 257 |             ast::Entity::Lambda(params, body) => {
[INFO] [stderr]     |                                         ^^^^ help: consider prefixing with an underscore: `_body`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `branches`
[INFO] [stderr]    --> src/parser/error.rs:337:42
[INFO] [stderr]     |
[INFO] [stderr] 337 |             IfBranchTypeMismatch(types, (branches, else_do)) => write!(f, "ERROR TODO: Properly display if statement typing.\n These branches don't return the same value\n{:?}", types),
[INFO] [stderr]     |                                          ^^^^^^^^ help: consider prefixing with an underscore: `_branches`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `else_do`
[INFO] [stderr]    --> src/parser/error.rs:337:52
[INFO] [stderr]     |
[INFO] [stderr] 337 |             IfBranchTypeMismatch(types, (branches, else_do)) => write!(f, "ERROR TODO: Properly display if statement typing.\n These branches don't return the same value\n{:?}", types),
[INFO] [stderr]     |                                                    ^^^^^^^ help: consider prefixing with an underscore: `_else_do`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `id`
[INFO] [stderr]   --> src/interpreter/runner.rs:96:54
[INFO] [stderr]    |
[INFO] [stderr] 96 | ...                   Capturable::ParentLambda(id) =...
[INFO] [stderr]    |                                                ^^ help: consider prefixing with an underscore: `_id`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `id`
[INFO] [stderr]   --> src/interpreter/runner/bridge.rs:41:23
[INFO] [stderr]    |
[INFO] [stderr] 41 | pub fn get_func_write(id: u16) -> fn(&Value, &mut Value) {
[INFO] [stderr]    |                       ^^ help: consider prefixing with an underscore: `_id`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `environment`
[INFO] [stderr]   --> src/parser/ast.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     environment: Rc<Environment>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `into_annotated_str`
[INFO] [stderr]  --> src/parser/annotation.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn into_annotated_str(
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `into_annotated`
[INFO] [stderr]   --> src/parser/annotation.rs:36:8
[INFO] [stderr]    |
[INFO] [stderr] 36 | pub fn into_annotated(path: Vec<String>) -> Result<RawToken, ParseFault> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `consume`
[INFO] [stderr]   --> src/interpreter/runner/parambuffer.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn consume(&mut self) -> ParamBuffer<'p> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `mem_take` has been stable since 1.40.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/main.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(mem_take)]
[INFO] [stderr]   |            ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `environment`
[INFO] [stderr]   --> src/parser/ast.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     environment: Rc<Environment>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `into_annotated_str`
[INFO] [stderr]  --> src/parser/annotation.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn into_annotated_str(
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `into_annotated`
[INFO] [stderr]   --> src/parser/annotation.rs:36:8
[INFO] [stderr]    |
[INFO] [stderr] 36 | pub fn into_annotated(path: Vec<String>) -> Result<RawToken, ParseFault> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `consume`
[INFO] [stderr]   --> src/interpreter/runner/parambuffer.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn consume(&mut self) -> ParamBuffer<'p> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `mem_take` has been stable since 1.40.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/main.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(mem_take)]
[INFO] [stderr]   |            ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.08s
[INFO] running `"docker" "inspect" "78851f7619c77966e57f1921b1469961ba341920ae1fdd00829d62ee9fe26971"`
[INFO] running `"docker" "rm" "-f" "78851f7619c77966e57f1921b1469961ba341920ae1fdd00829d62ee9fe26971"`
[INFO] [stdout] 78851f7619c77966e57f1921b1469961ba341920ae1fdd00829d62ee9fe26971