[INFO] fetching crate markab_parser 0.7.0...
[INFO] checking markab_parser-0.7.0 against 1.55.0 for beta-1.56-3
[INFO] extracting crate markab_parser 0.7.0 into /workspace/builds/worker-38/source
[INFO] validating manifest of crates.io crate markab_parser 0.7.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate markab_parser 0.7.0
[INFO] finished tweaking crates.io crate markab_parser 0.7.0
[INFO] tweaked toml for crates.io crate markab_parser 0.7.0 written to /workspace/builds/worker-38/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 14e2b3582686d82f74cb2c9bbe383b4b0f79c792216ae1f0712ce1c441d06cba
[INFO] running `Command { std: "docker" "start" "-a" "14e2b3582686d82f74cb2c9bbe383b4b0f79c792216ae1f0712ce1c441d06cba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "14e2b3582686d82f74cb2c9bbe383b4b0f79c792216ae1f0712ce1c441d06cba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14e2b3582686d82f74cb2c9bbe383b4b0f79c792216ae1f0712ce1c441d06cba", kill_on_drop: false }`
[INFO] [stdout] 14e2b3582686d82f74cb2c9bbe383b4b0f79c792216ae1f0712ce1c441d06cba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bea8c0c6fc9cd784df583b1cd91beb02df908236a07fe142d63f3b716e852a74
[INFO] running `Command { std: "docker" "start" "-a" "bea8c0c6fc9cd784df583b1cd91beb02df908236a07fe142d63f3b716e852a74", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking markab_parser v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/gen_parser/parser.rs:24:17
[INFO] [stdout]    |
[INFO] [stdout] 24 |     generator: &'a Fn(&P1::Output) -> P2,
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&P1::Output) -> P2`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/gen_parser/parser.rs:32:45
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn new(requirement: P1, generator: &'a Fn(&P1::Output) -> P2) -> Self
[INFO] [stdout]    |                                                ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&P1::Output) -> P2`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/map_parser/parser.rs:19:14
[INFO] [stdout]    |
[INFO] [stdout] 19 |     mapper: &'a Fn(P::Output) -> R,
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(P::Output) -> R`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/map_parser/parser.rs:26:41
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn new(requirement: P, mapper: &'a Fn(P::Output) -> R) -> Self
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(P::Output) -> R`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/parser.rs:50:30
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn map<R>(self, mapper: &'a Fn(Self::Output) -> R) -> MapParser<'a, Self, R>
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Self::Output) -> R`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/parser.rs:57:37
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fn and_gen<P>(self, generator: &'a Fn(&Self::Output) -> P) -> GenParser<'a, Self, P>
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Self::Output) -> P`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/gen_parser/parser.rs:24:17
[INFO] [stdout]    |
[INFO] [stdout] 24 |     generator: &'a Fn(&P1::Output) -> P2,
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&P1::Output) -> P2`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/gen_parser/parser.rs:32:45
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn new(requirement: P1, generator: &'a Fn(&P1::Output) -> P2) -> Self
[INFO] [stdout]    |                                                ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&P1::Output) -> P2`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/map_parser/parser.rs:19:14
[INFO] [stdout]    |
[INFO] [stdout] 19 |     mapper: &'a Fn(P::Output) -> R,
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(P::Output) -> R`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/map_parser/parser.rs:26:41
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn new(requirement: P, mapper: &'a Fn(P::Output) -> R) -> Self
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(P::Output) -> R`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/parser.rs:50:30
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn map<R>(self, mapper: &'a Fn(Self::Output) -> R) -> MapParser<'a, Self, R>
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Self::Output) -> R`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/parser.rs:57:37
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fn and_gen<P>(self, generator: &'a Fn(&Self::Output) -> P) -> GenParser<'a, Self, P>
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Self::Output) -> P`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `res`
[INFO] [stdout]   --> src/map_parser/parser.rs:88:6
[INFO] [stdout]    |
[INFO] [stdout] 88 |     let res = parser.parse(src, &mut pos);
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `Command { std: "docker" "inspect" "bea8c0c6fc9cd784df583b1cd91beb02df908236a07fe142d63f3b716e852a74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bea8c0c6fc9cd784df583b1cd91beb02df908236a07fe142d63f3b716e852a74", kill_on_drop: false }`
[INFO] [stdout] bea8c0c6fc9cd784df583b1cd91beb02df908236a07fe142d63f3b716e852a74
