[INFO] crate lexpar 0.1.0 is already in cache
[INFO] checking lexpar-0.1.0 against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] extracting crate lexpar 0.1.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate lexpar 0.1.0 on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate lexpar 0.1.0
[INFO] finished tweaking crates.io crate lexpar 0.1.0
[INFO] tweaked toml for crates.io crate lexpar 0.1.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "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] f8fec79381fe195221e7eccd2e8281370db751b2435f9f326362b48624ddb526
[INFO] running `"docker" "start" "-a" "f8fec79381fe195221e7eccd2e8281370db751b2435f9f326362b48624ddb526"`
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]     Checking lexpar v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lexer.rs:48:17
[INFO] [stderr]    |
[INFO] [stderr] 48 |     handle: Box<for<'a> Fn(Span, &'a str, Vec<&'a str>) -> T>
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn for<'a> Fn(Span, &'a str, Vec<&'a str>) -> T`
[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/lexer.rs:55:18
[INFO] [stderr]    |
[INFO] [stderr] 55 |     unknown: Box<for<'a> Fn(Span, &'a str) -> T>
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn for<'a> Fn(Span, &'a str) -> T`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lexer.rs:117:41
[INFO] [stderr]     |
[INFO] [stderr] 117 |     pub fn new<F>(rules: Vec<(&str, Box<for<'a> Fn(Span, &'a str, Vec<&'a str>) -> T>)>, unknown: F) -> Self
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn for<'a> Fn(Span, &'a str, Vec<&'a str>) -> T`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lexer.rs:48:17
[INFO] [stderr]    |
[INFO] [stderr] 48 |     handle: Box<for<'a> Fn(Span, &'a str, Vec<&'a str>) -> T>
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn for<'a> Fn(Span, &'a str, Vec<&'a str>) -> T`
[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/lexer.rs:55:18
[INFO] [stderr]    |
[INFO] [stderr] 55 |     unknown: Box<for<'a> Fn(Span, &'a str) -> T>
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn for<'a> Fn(Span, &'a str) -> T`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lexer.rs:117:41
[INFO] [stderr]     |
[INFO] [stderr] 117 |     pub fn new<F>(rules: Vec<(&str, Box<for<'a> Fn(Span, &'a str, Vec<&'a str>) -> T>)>, unknown: F) -> Self
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn for<'a> Fn(Span, &'a str, Vec<&'a str>) -> T`
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> examples/ml_family/parser/ast.rs:9:15
[INFO] [stderr]   |
[INFO] [stderr] 9 |     expr: Box<Ast>
[INFO] [stderr]   |               ^^^ help: use `dyn`: `dyn Ast`
[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]  --> examples/rust_family/parser/ast.rs:9:15
[INFO] [stderr]   |
[INFO] [stderr] 9 |     expr: Box<Ast>
[INFO] [stderr]   |               ^^^ help: use `dyn`: `dyn Ast`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> examples/rust_family/parser/mod.rs:142:31
[INFO] [stderr]     |
[INFO] [stderr] 142 |             unsafe { acc.push(::std::mem::uninitialized()) }
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> tests/parser.rs:31:28
[INFO] [stderr]    |
[INFO] [stderr] 31 |     let parse = |iter: Box<Iterator<Item = (Span, Token)>>| {
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = (Span, Token)>`
[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/parser.rs:69:28
[INFO] [stderr]    |
[INFO] [stderr] 69 |     let parse = |iter: Box<Iterator<Item = Token>>| {
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Token>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> tests/parser.rs:102:28
[INFO] [stderr]     |
[INFO] [stderr] 102 |     let parse = |iter: Box<Iterator<Item = Token>>| {
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Token>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> tests/parser.rs:150:28
[INFO] [stderr]     |
[INFO] [stderr] 150 |     let parse = |iter: Box<Iterator<Item = Token>>| {
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Token>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> tests/parser.rs:243:28
[INFO] [stderr]     |
[INFO] [stderr] 243 |     let parse = |iter: Box<Iterator<Item = Token>>| {
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Token>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> tests/parser.rs:309:32
[INFO] [stderr]     |
[INFO] [stderr] 309 |         let parse = |iter: Box<Iterator<Item = Token>>| {
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Token>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> tests/parser.rs:408:32
[INFO] [stderr]     |
[INFO] [stderr] 408 |         let parse = |iter: Box<Iterator<Item = Token>>| {
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Token>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> tests/parser.rs:438:32
[INFO] [stderr]     |
[INFO] [stderr] 438 |         let parse = |iter: Box<Iterator<Item = Token>>| {
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Token>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> tests/parser.rs:489:32
[INFO] [stderr]     |
[INFO] [stderr] 489 |         let parse = |iter: Box<Iterator<Item = Token>>| {
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Token>`
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: the type `rust_family::parser::ast::AstNode` does not permit being left uninitialized
[INFO] [stderr]    --> examples/rust_family/parser/mod.rs:142:31
[INFO] [stderr]     |
[INFO] [stderr] 142 |             unsafe { acc.push(::std::mem::uninitialized()) }
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |                               |
[INFO] [stderr]     |                               this code causes undefined behavior when executed
[INFO] [stderr]     |                               help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(invalid_value)]` on by default
[INFO] [stderr] note: `Box` must be non-null (in this struct field)
[INFO] [stderr]    --> examples/rust_family/parser/ast.rs:9:5
[INFO] [stderr]     |
[INFO] [stderr] 9   |     expr: Box<Ast>
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.59s
[INFO] running `"docker" "inspect" "f8fec79381fe195221e7eccd2e8281370db751b2435f9f326362b48624ddb526"`
[INFO] running `"docker" "rm" "-f" "f8fec79381fe195221e7eccd2e8281370db751b2435f9f326362b48624ddb526"`
[INFO] [stdout] f8fec79381fe195221e7eccd2e8281370db751b2435f9f326362b48624ddb526