[INFO] fetching crate exist 0.1.2...
[INFO] checking exist-0.1.2 against master#30f74ff0dc4d66debc8b50724c446f817e5f75f4 for pr-121848-1
[INFO] extracting crate exist 0.1.2 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate exist 0.1.2 on toolchain 30f74ff0dc4d66debc8b50724c446f817e5f75f4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate exist 0.1.2
[INFO] finished tweaking crates.io crate exist 0.1.2
[INFO] tweaked toml for crates.io crate exist 0.1.2 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded blake2 v0.8.1
[INFO] [stderr]   Downloaded serde_cbor v0.9.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0590f93f42454646becc39c64fe021453c4372ea5e4a72c2a3a10e33452f147c
[INFO] running `Command { std: "docker" "start" "-a" "0590f93f42454646becc39c64fe021453c4372ea5e4a72c2a3a10e33452f147c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0590f93f42454646becc39c64fe021453c4372ea5e4a72c2a3a10e33452f147c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0590f93f42454646becc39c64fe021453c4372ea5e4a72c2a3a10e33452f147c", kill_on_drop: false }`
[INFO] [stdout] 0590f93f42454646becc39c64fe021453c4372ea5e4a72c2a3a10e33452f147c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 98adcf9d04b008b365115d203d9b102056695b648bbe07bc6e9575e15bbdc815
[INFO] running `Command { std: "docker" "start" "-a" "98adcf9d04b008b365115d203d9b102056695b648bbe07bc6e9575e15bbdc815", kill_on_drop: false }`
[INFO] [stderr]     Checking subtle v1.0.0
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking half v1.8.3
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking blake2 v0.8.1
[INFO] [stderr]     Checking serde_cbor v0.9.0
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking exist v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: ambiguous associated item
[INFO] [stdout]   --> src/data_models/leaf_tree.rs:34:37
[INFO] [stdout]    |
[INFO] [stdout] 34 |         fn visit<V: Visitor<Value = Self::Value>>(&self, v: &mut V) {
[INFO] [stdout]    |                                     ^^^^^^^^^^^ help: use fully-qualified syntax: `<leaf_tree::concrete::Concrete<Value> as View>::Value`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #57644 <https://github.com/rust-lang/rust/issues/57644>
[INFO] [stdout] note: `Value` could refer to the variant defined here
[INFO] [stdout]   --> src/data_models/leaf_tree.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |         Value(V),
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] note: `Value` could also refer to the associated type defined here
[INFO] [stdout]   --> src/data_models/mod.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |             $(type $Items;)*
[INFO] [stdout]    |               ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/data_models/leaf_tree.rs:7:1
[INFO] [stdout]    |
[INFO] [stdout] 7  | Visitable!(View, Visitor, Value);
[INFO] [stdout]    | -------------------------------- in this macro invocation
[INFO] [stdout]    = note: `#[deny(ambiguous_associated_items)]` on by default
[INFO] [stdout]    = note: this error originates in the macro `Visitable` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: ambiguous associated item
[INFO] [stdout]   --> src/data_models/leaf_tree.rs:34:37
[INFO] [stdout]    |
[INFO] [stdout] 34 |         fn visit<V: Visitor<Value = Self::Value>>(&self, v: &mut V) {
[INFO] [stdout]    |                                     ^^^^^^^^^^^ help: use fully-qualified syntax: `<leaf_tree::concrete::Concrete<Value> as View>::Value`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #57644 <https://github.com/rust-lang/rust/issues/57644>
[INFO] [stdout] note: `Value` could refer to the variant defined here
[INFO] [stdout]   --> src/data_models/leaf_tree.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |         Value(V),
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] note: `Value` could also refer to the associated type defined here
[INFO] [stdout]   --> src/data_models/mod.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |             $(type $Items;)*
[INFO] [stdout]    |               ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/data_models/leaf_tree.rs:7:1
[INFO] [stdout]    |
[INFO] [stdout] 7  | Visitable!(View, Visitor, Value);
[INFO] [stdout]    | -------------------------------- in this macro invocation
[INFO] [stdout]    = note: `#[deny(ambiguous_associated_items)]` on by default
[INFO] [stdout]    = note: this error originates in the macro `Visitable` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BYTE_PATTERN_TEMPLATE_MARKER` is never used
[INFO] [stdout]   --> src/prefix_encoding.rs:80:7
[INFO] [stdout]    |
[INFO] [stdout] 80 | const BYTE_PATTERN_TEMPLATE_MARKER: u8 = 2;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `TREE_TEMPLATE_MARKER` is never used
[INFO] [stdout]   --> src/prefix_encoding.rs:95:7
[INFO] [stdout]    |
[INFO] [stdout] 95 | const TREE_TEMPLATE_MARKER: u8 = 3;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `TEMPLATE_USE_SEQUENCE_MARKER` is never used
[INFO] [stdout]    --> src/prefix_encoding.rs:112:7
[INFO] [stdout]     |
[INFO] [stdout] 112 | const TEMPLATE_USE_SEQUENCE_MARKER: u8 = 5;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Shape` is never constructed
[INFO] [stdout]    --> src/prefix_encoding.rs:176:8
[INFO] [stdout]     |
[INFO] [stdout] 176 | struct Shape {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_shape` is never used
[INFO] [stdout]    --> src/prefix_encoding.rs:180:4
[INFO] [stdout]     |
[INFO] [stdout] 180 | fn get_shape<TView: View<Value = u8>>(view: TView) -> Shape {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ShapeState` is never constructed
[INFO] [stdout]    --> src/prefix_encoding.rs:204:8
[INFO] [stdout]     |
[INFO] [stdout] 204 | struct ShapeState {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `size` is never read
[INFO] [stdout]  --> src/leaf_tree_template.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct BytePatternTemplate<'a> {
[INFO] [stdout]   |            ------------------- field in this struct
[INFO] [stdout] 4 |     size: u32,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `offset` is never read
[INFO] [stdout]   --> src/leaf_tree_template.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct OffsetTemplateUse<T> {
[INFO] [stdout]    |            ----------------- field in this struct
[INFO] [stdout] 16 |     template: T,
[INFO] [stdout] 17 |     offset: u32,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BYTE_PATTERN_TEMPLATE_MARKER` is never used
[INFO] [stdout]   --> src/prefix_encoding.rs:80:7
[INFO] [stdout]    |
[INFO] [stdout] 80 | const BYTE_PATTERN_TEMPLATE_MARKER: u8 = 2;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `TREE_TEMPLATE_MARKER` is never used
[INFO] [stdout]   --> src/prefix_encoding.rs:95:7
[INFO] [stdout]    |
[INFO] [stdout] 95 | const TREE_TEMPLATE_MARKER: u8 = 3;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `TEMPLATE_USE_SEQUENCE_MARKER` is never used
[INFO] [stdout]    --> src/prefix_encoding.rs:112:7
[INFO] [stdout]     |
[INFO] [stdout] 112 | const TEMPLATE_USE_SEQUENCE_MARKER: u8 = 5;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Shape` is never constructed
[INFO] [stdout]    --> src/prefix_encoding.rs:176:8
[INFO] [stdout]     |
[INFO] [stdout] 176 | struct Shape {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_shape` is never used
[INFO] [stdout]    --> src/prefix_encoding.rs:180:4
[INFO] [stdout]     |
[INFO] [stdout] 180 | fn get_shape<TView: View<Value = u8>>(view: TView) -> Shape {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ShapeState` is never constructed
[INFO] [stdout]    --> src/prefix_encoding.rs:204:8
[INFO] [stdout]     |
[INFO] [stdout] 204 | struct ShapeState {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `size` is never read
[INFO] [stdout]  --> src/leaf_tree_template.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct BytePatternTemplate<'a> {
[INFO] [stdout]   |            ------------------- field in this struct
[INFO] [stdout] 4 |     size: u32,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `offset` is never read
[INFO] [stdout]   --> src/leaf_tree_template.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct OffsetTemplateUse<T> {
[INFO] [stdout]    |            ----------------- field in this struct
[INFO] [stdout] 16 |     template: T,
[INFO] [stdout] 17 |     offset: u32,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `exist` (bin "exist" test) due to 2 previous errors; 8 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 1 previous error; 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `exist` (bin "exist") due to 2 previous errors; 8 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "98adcf9d04b008b365115d203d9b102056695b648bbe07bc6e9575e15bbdc815", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98adcf9d04b008b365115d203d9b102056695b648bbe07bc6e9575e15bbdc815", kill_on_drop: false }`
[INFO] [stdout] 98adcf9d04b008b365115d203d9b102056695b648bbe07bc6e9575e15bbdc815
