[INFO] fetching crate lexpar 0.1.0...
[INFO] checking lexpar-0.1.0 against beta-2020-07-24 for pr-75494-beta
[INFO] extracting crate lexpar 0.1.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate lexpar 0.1.0 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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" "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" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 320ab265712a183a76b1795fbec52b5e4c6c8d12a447373421e8222548036b79
[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" "320ab265712a183a76b1795fbec52b5e4c6c8d12a447373421e8222548036b79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "320ab265712a183a76b1795fbec52b5e4c6c8d12a447373421e8222548036b79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "320ab265712a183a76b1795fbec52b5e4c6c8d12a447373421e8222548036b79", kill_on_drop: false }`
[INFO] [stdout] 320ab265712a183a76b1795fbec52b5e4c6c8d12a447373421e8222548036b79
[INFO] running `Command { std: "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" "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" "+beta-2020-07-24" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2c31b00cf343392d0d2f56896f22e56d8e4f25061a22bd39b44a2ce3d4b1f837
[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" "2c31b00cf343392d0d2f56896f22e56d8e4f25061a22bd39b44a2ce3d4b1f837", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]     Checking lexpar v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lexer.rs:48:17
[INFO] [stdout]    |
[INFO] [stdout] 48 |     handle: Box<for<'a> Fn(Span, &'a str, Vec<&'a str>) -> T>
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn for<'a> Fn(Span, &'a str, Vec<&'a str>) -> T`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lexer.rs:55:18
[INFO] [stdout]    |
[INFO] [stdout] 55 |     unknown: Box<for<'a> Fn(Span, &'a str) -> T>
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn for<'a> Fn(Span, &'a str) -> T`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lexer.rs:117:41
[INFO] [stdout]     |
[INFO] [stdout] 117 |     pub fn new<F>(rules: Vec<(&str, Box<for<'a> Fn(Span, &'a str, Vec<&'a str>) -> T>)>, unknown: F) -> Self
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn for<'a> Fn(Span, &'a str, Vec<&'a str>) -> T`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lexer.rs:48:17
[INFO] [stdout]    |
[INFO] [stdout] 48 |     handle: Box<for<'a> Fn(Span, &'a str, Vec<&'a str>) -> T>
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn for<'a> Fn(Span, &'a str, Vec<&'a str>) -> T`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lexer.rs:55:18
[INFO] [stdout]    |
[INFO] [stdout] 55 |     unknown: Box<for<'a> Fn(Span, &'a str) -> T>
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn for<'a> Fn(Span, &'a str) -> T`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lexer.rs:117:41
[INFO] [stdout]     |
[INFO] [stdout] 117 |     pub fn new<F>(rules: Vec<(&str, Box<for<'a> Fn(Span, &'a str, Vec<&'a str>) -> T>)>, unknown: F) -> Self
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn for<'a> Fn(Span, &'a str, Vec<&'a str>) -> T`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/parser.rs:31:28
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let parse = |iter: Box<Iterator<Item = (Span, Token)>>| {
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = (Span, Token)>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/parser.rs:69:28
[INFO] [stdout]    |
[INFO] [stdout] 69 |     let parse = |iter: Box<Iterator<Item = Token>>| {
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Token>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> tests/parser.rs:102:28
[INFO] [stdout]     |
[INFO] [stdout] 102 |     let parse = |iter: Box<Iterator<Item = Token>>| {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Token>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> tests/parser.rs:150:28
[INFO] [stdout]     |
[INFO] [stdout] 150 |     let parse = |iter: Box<Iterator<Item = Token>>| {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Token>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> tests/parser.rs:243:28
[INFO] [stdout]     |
[INFO] [stdout] 243 |     let parse = |iter: Box<Iterator<Item = Token>>| {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Token>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> tests/parser.rs:309:32
[INFO] [stdout]     |
[INFO] [stdout] 309 |         let parse = |iter: Box<Iterator<Item = Token>>| {
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Token>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> tests/parser.rs:408:32
[INFO] [stdout]     |
[INFO] [stdout] 408 |         let parse = |iter: Box<Iterator<Item = Token>>| {
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Token>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> tests/parser.rs:438:32
[INFO] [stdout]     |
[INFO] [stdout] 438 |         let parse = |iter: Box<Iterator<Item = Token>>| {
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Token>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> tests/parser.rs:489:32
[INFO] [stdout]     |
[INFO] [stdout] 489 |         let parse = |iter: Box<Iterator<Item = Token>>| {
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Token>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> examples/rust_family/parser/ast.rs:9:15
[INFO] [stdout]   |
[INFO] [stdout] 9 |     expr: Box<Ast>
[INFO] [stdout]   |               ^^^ help: use `dyn`: `dyn Ast`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stdout]    --> examples/rust_family/parser/mod.rs:142:31
[INFO] [stdout]     |
[INFO] [stdout] 142 |             unsafe { acc.push(::std::mem::uninitialized()) }
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> examples/ml_family/parser/ast.rs:9:15
[INFO] [stdout]   |
[INFO] [stdout] 9 |     expr: Box<Ast>
[INFO] [stdout]   |               ^^^ help: use `dyn`: `dyn Ast`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `rust_family::parser::ast::AstNode` does not permit being left uninitialized
[INFO] [stdout]    --> examples/rust_family/parser/mod.rs:142:31
[INFO] [stdout]     |
[INFO] [stdout] 142 |             unsafe { acc.push(::std::mem::uninitialized()) }
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                               |
[INFO] [stdout]     |                               this code causes undefined behavior when executed
[INFO] [stdout]     |                               help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(invalid_value)]` on by default
[INFO] [stdout] note: `Box` must be non-null (in this struct field)
[INFO] [stdout]    --> examples/rust_family/parser/ast.rs:9:5
[INFO] [stdout]     |
[INFO] [stdout] 9   |     expr: Box<Ast>
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.51s
[INFO] running `Command { std: "docker" "inspect" "2c31b00cf343392d0d2f56896f22e56d8e4f25061a22bd39b44a2ce3d4b1f837", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c31b00cf343392d0d2f56896f22e56d8e4f25061a22bd39b44a2ce3d4b1f837", kill_on_drop: false }`
[INFO] [stdout] 2c31b00cf343392d0d2f56896f22e56d8e4f25061a22bd39b44a2ce3d4b1f837
