[INFO] fetching crate proof 0.0.0...
[INFO] checking proof-0.0.0 against try#21cad1f647cfd05a566220f933edd88a53e50bcf for pr-129249-1
[INFO] extracting crate proof 0.0.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate proof 0.0.0
[INFO] finished tweaking crates.io crate proof 0.0.0
[INFO] tweaked toml for crates.io crate proof 0.0.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate proof 0.0.0 on toolchain 21cad1f647cfd05a566220f933edd88a53e50bcf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+21cad1f647cfd05a566220f933edd88a53e50bcf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+21cad1f647cfd05a566220f933edd88a53e50bcf" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 53 packages to latest compatible versions
[INFO] [stderr]       Adding eth2_ssz v0.1.2 (available: v0.4.0)
[INFO] [stderr]       Adding eth2_ssz_derive v0.1.0 (available: v0.3.0)
[INFO] [stderr]       Adding ethereum-types v0.6.0 (available: v0.16.0)
[INFO] [stderr]       Adding sha2 v0.8.2 (available: v0.11.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+21cad1f647cfd05a566220f933edd88a53e50bcf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3e793bdf10248eb2ddbd6b0faebed8155c11b4589982e2893733958d93e8d540" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 25ea4ca74e069d5ee11c61d8bfefff182cffb782dbaca3eacd9cb5749e70f802
[INFO] running `Command { std: "docker" "start" "25ea4ca74e069d5ee11c61d8bfefff182cffb782dbaca3eacd9cb5749e70f802", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "25ea4ca74e069d5ee11c61d8bfefff182cffb782dbaca3eacd9cb5749e70f802" "/opt/rustwide/cargo-home/bin/cargo" "+21cad1f647cfd05a566220f933edd88a53e50bcf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "25ea4ca74e069d5ee11c61d8bfefff182cffb782dbaca3eacd9cb5749e70f802", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "25ea4ca74e069d5ee11c61d8bfefff182cffb782dbaca3eacd9cb5749e70f802" "/opt/rustwide/cargo-home/bin/cargo" "+21cad1f647cfd05a566220f933edd88a53e50bcf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking rustc-hex v2.1.0
[INFO] [stderr]    Compiling heapsize v0.4.2
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling crunchy v0.2.4
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking static_assertions v0.2.5
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking typenum v1.20.1
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking rlp v0.4.6
[INFO] [stderr]     Checking tiny-keccak v1.5.0
[INFO] [stderr]     Checking uint v0.5.0
[INFO] [stderr]     Checking uint v0.7.1
[INFO] [stderr]     Checking impl-rlp v0.2.1
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking impl-serde v0.2.3
[INFO] [stderr]     Checking parity-codec v3.5.4
[INFO] [stderr]     Checking ethereum-types-serialize v0.2.2
[INFO] [stderr]     Checking impl-codec v0.2.0
[INFO] [stderr]     Checking fixed-hash v0.3.2
[INFO] [stderr]     Checking ethbloom v0.6.4
[INFO] [stderr]     Checking primitive-types v0.3.0
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]     Checking ethereum-types v0.5.2
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking sha2 v0.8.2
[INFO] [stderr]     Checking ethereum-types v0.6.0
[INFO] [stderr]    Compiling eth2_ssz_derive v0.1.0
[INFO] [stderr]     Checking eth2_ssz v0.1.2
[INFO] [stderr]     Checking proof v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `a` is never read
[INFO] [stdout]   --> tests/simple_fixed_vector.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct S {
[INFO] [stdout]    |        - field in this struct
[INFO] [stdout] 16 |     a: FixedVector<U256, U4>,
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `S` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `u64`
[INFO] [stdout]   --> tests/simple_fixed_vector.rs:35:29
[INFO] [stdout]    |
[INFO] [stdout] 35 |                     height: FixedVector::<U256, U4>::height().into(),
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]    = note: you can instead use the fully-qualified path `<u64 as Into<u64>::into(val) to avoid triggering this lint
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proof` (test "simple_fixed_vector") due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: fields `timestamp` and `message` are never read
[INFO] [stdout]   --> tests/practical_structure.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct Message {
[INFO] [stdout]    |        ------- fields in this struct
[INFO] [stdout] 11 |     timestamp: u64,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 12 |     message: FixedVector<u8, U32>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `messages` is never read
[INFO] [stdout]   --> tests/practical_structure.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | struct State {
[INFO] [stdout]    |        ----- field in this struct
[INFO] [stdout] 17 |     messages: VariableList<Message, U8>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `State` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `u64`
[INFO] [stdout]   --> tests/practical_structure.rs:68:29
[INFO] [stdout]    |
[INFO] [stdout] 68 |                     height: VariableList::<Message, U8>::height().into(),
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]    = note: you can instead use the fully-qualified path `<u64 as Into<u64>::into(val) to avoid triggering this lint
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `a` and `b` are never read
[INFO] [stdout]   --> tests/nested_structure.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct S {
[INFO] [stdout]    |        - fields in this struct
[INFO] [stdout] 23 |     a: U256,
[INFO] [stdout]    |     ^
[INFO] [stdout] 24 |     b: VariableList<u128, U8>,
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `S` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proof` (test "practical_structure") due to 1 previous error; 2 warnings emitted
[INFO] [stdout] warning: field `a` is never read
[INFO] [stdout]   --> tests/simple_variable_list.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct S {
[INFO] [stdout]    |        - field in this struct
[INFO] [stdout] 15 |     a: VariableList<u128, U4>,
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `S` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `u64`
[INFO] [stdout]   --> tests/simple_variable_list.rs:33:29
[INFO] [stdout]    |
[INFO] [stdout] 33 |                     height: VariableList::<u128, U4>::height().into(),
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]    = note: you can instead use the fully-qualified path `<u64 as Into<u64>::into(val) to avoid triggering this lint
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proof` (test "simple_variable_list") due to 1 previous error; 1 warning emitted
[INFO] [stdout] warning: fields `a`, `b`, `c`, and `d` are never read
[INFO] [stdout]   --> tests/simple_struct.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | struct S {
[INFO] [stdout]    |        - fields in this struct
[INFO] [stdout] 18 |     a: U256,
[INFO] [stdout]    |     ^
[INFO] [stdout] 19 |     b: U256,
[INFO] [stdout]    |     ^
[INFO] [stdout] 20 |     c: u128,
[INFO] [stdout]    |     ^
[INFO] [stdout] 21 |     d: u128,
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `S` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "25ea4ca74e069d5ee11c61d8bfefff182cffb782dbaca3eacd9cb5749e70f802", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25ea4ca74e069d5ee11c61d8bfefff182cffb782dbaca3eacd9cb5749e70f802", kill_on_drop: false }`
[INFO] [stdout] 25ea4ca74e069d5ee11c61d8bfefff182cffb782dbaca3eacd9cb5749e70f802
