[INFO] updating cached repository https://github.com/AlmightyFloppyFish/leaf
[INFO] running `Command { std: "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", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5802d6a0c2e4805087988bacfeb057d838920772
[INFO] checking AlmightyFloppyFish/leaf against try#c8bdaa84ec1b37f18f30375e196a65b7602f3790 for pr-73345
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlmightyFloppyFish%2Fleaf" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AlmightyFloppyFish/leaf on toolchain c8bdaa84ec1b37f18f30375e196a65b7602f3790
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-13/source/Cargo.toml
[INFO] crate git repo https://github.com/AlmightyFloppyFish/leaf already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a21479a0abf8ff6bfe97053c8f9c9ca65b1c1d55219dad667752dc7a538913e5
[INFO] running `Command { std: "docker" "start" "-a" "a21479a0abf8ff6bfe97053c8f9c9ca65b1c1d55219dad667752dc7a538913e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a21479a0abf8ff6bfe97053c8f9c9ca65b1c1d55219dad667752dc7a538913e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a21479a0abf8ff6bfe97053c8f9c9ca65b1c1d55219dad667752dc7a538913e5", kill_on_drop: false }`
[INFO] [stdout] a21479a0abf8ff6bfe97053c8f9c9ca65b1c1d55219dad667752dc7a538913e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 137b01097e277bc581df2f48b891018ba62020b1917fa13bac9aeb63e3e2ffa2
[INFO] running `Command { std: "docker" "start" "-a" "137b01097e277bc581df2f48b891018ba62020b1917fa13bac9aeb63e3e2ffa2", kill_on_drop: false }`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling proc-macro2 v1.0.7
[INFO] [stderr]    Compiling syn v1.0.13
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking smallvec v1.1.0
[INFO] [stderr]     Checking strum v0.17.1
[INFO] [stderr]     Checking termion v1.5.3
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling strum_macros v0.17.1
[INFO] [stderr]     Checking leaf v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `tokenizer::TokenSource`
[INFO] [stdout]  --> src/parser/operator.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     tokenizer::TokenSource, Attr, FunctionBuilder, IdentifierType, Key, ParseError, ParseFault,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokenizer::TokenSource`
[INFO] [stdout]  --> src/parser/operator.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     tokenizer::TokenSource, Attr, FunctionBuilder, IdentifierType, Key, ParseError, ParseFault,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `got`
[INFO] [stdout]   --> src/parser/type/struct.rs:17:40
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn verify_record_fields(&self, got: &[(String, Type)]) -> Result<(), ParseFault> {
[INFO] [stdout]    |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_got`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `local`
[INFO] [stdout]    --> src/parser/ast/checker.rs:340:18
[INFO] [stdout]     |
[INFO] [stdout] 340 |             Some(local) => {
[INFO] [stdout]     |                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_local`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `enum`
[INFO] [stdout]    --> src/parser/ast/checker.rs:369:38
[INFO] [stdout]     |
[INFO] [stdout] 369 |                     CustomType::Enum(r#enum) => {
[INFO] [stdout]     |                                      ^^^^^^ help: if this is intentional, prefix it with an underscore: `_enum`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]    --> src/parser/ast/checker.rs:482:34
[INFO] [stdout]     |
[INFO] [stdout] 482 |                 MaybeType::Infer(t) => unimplemented!(),
[INFO] [stdout]     |                                  ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `branches`
[INFO] [stdout]    --> src/parser/error.rs:416:47
[INFO] [stdout]     |
[INFO] [stdout] 416 |             IfBranchTypeMismatch(box (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] [stdout]     |                                               ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_branches`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `else_do`
[INFO] [stdout]    --> src/parser/error.rs:416:57
[INFO] [stdout]     |
[INFO] [stdout] 416 |             IfBranchTypeMismatch(box (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] [stdout]     |                                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_else_do`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `got`
[INFO] [stdout]   --> src/parser/type/struct.rs:17:40
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn verify_record_fields(&self, got: &[(String, Type)]) -> Result<(), ParseFault> {
[INFO] [stdout]    |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_got`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `local`
[INFO] [stdout]    --> src/parser/ast/checker.rs:340:18
[INFO] [stdout]     |
[INFO] [stdout] 340 |             Some(local) => {
[INFO] [stdout]     |                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_local`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `enum`
[INFO] [stdout]    --> src/parser/ast/checker.rs:369:38
[INFO] [stdout]     |
[INFO] [stdout] 369 |                     CustomType::Enum(r#enum) => {
[INFO] [stdout]     |                                      ^^^^^^ help: if this is intentional, prefix it with an underscore: `_enum`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]    --> src/parser/ast/checker.rs:482:34
[INFO] [stdout]     |
[INFO] [stdout] 482 |                 MaybeType::Infer(t) => unimplemented!(),
[INFO] [stdout]     |                                  ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `branches`
[INFO] [stdout]    --> src/parser/error.rs:416:47
[INFO] [stdout]     |
[INFO] [stdout] 416 |             IfBranchTypeMismatch(box (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] [stdout]     |                                               ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_branches`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `else_do`
[INFO] [stdout]    --> src/parser/error.rs:416:57
[INFO] [stdout]     |
[INFO] [stdout] 416 |             IfBranchTypeMismatch(box (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] [stdout]     |                                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_else_do`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `environment`
[INFO] [stdout]   --> src/parser/ast.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     environment: Rc<Environment>,
[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: `join`
[INFO] [stdout]    --> src/parser/picker.rs:266:8
[INFO] [stdout]     |
[INFO] [stdout] 266 |     fn join(&mut self, other: Self) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Borrowed`
[INFO] [stdout]  --> src/interpreter/runner/parambuffer.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Borrowed(&'p SmallVec<[Value; 4]>),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `mem_take` has been stable since 1.40.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(mem_take)]
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `environment`
[INFO] [stdout]   --> src/parser/ast.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     environment: Rc<Environment>,
[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: `join`
[INFO] [stdout]    --> src/parser/picker.rs:266:8
[INFO] [stdout]     |
[INFO] [stdout] 266 |     fn join(&mut self, other: Self) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Borrowed`
[INFO] [stdout]  --> src/interpreter/runner/parambuffer.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Borrowed(&'p SmallVec<[Value; 4]>),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `mem_take` has been stable since 1.40.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(mem_take)]
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.92s
[INFO] running `Command { std: "docker" "inspect" "137b01097e277bc581df2f48b891018ba62020b1917fa13bac9aeb63e3e2ffa2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "137b01097e277bc581df2f48b891018ba62020b1917fa13bac9aeb63e3e2ffa2", kill_on_drop: false }`
[INFO] [stdout] 137b01097e277bc581df2f48b891018ba62020b1917fa13bac9aeb63e3e2ffa2