[INFO] fetching crate proof 0.0.0...
[INFO] building proof-0.0.0 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate proof 0.0.0 into /workspace/builds/worker-7-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-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate proof 0.0.0 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "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: v0.15.1)
[INFO] [stderr]       Adding sha2 v0.8.2 (available: v0.10.9)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d64d39ac36a9015eaceed20337de2fc711395b09e2e3aa0591db2d2c057e6002
[INFO] running `Command { std: "docker" "start" "-a" "d64d39ac36a9015eaceed20337de2fc711395b09e2e3aa0591db2d2c057e6002", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d64d39ac36a9015eaceed20337de2fc711395b09e2e3aa0591db2d2c057e6002", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d64d39ac36a9015eaceed20337de2fc711395b09e2e3aa0591db2d2c057e6002", kill_on_drop: false }`
[INFO] [stdout] d64d39ac36a9015eaceed20337de2fc711395b09e2e3aa0591db2d2c057e6002
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 193dbb758517e9d9de5adc5dd3023b69b5aef19c61cb9c09f5d515b2b25dfdeb
[INFO] running `Command { std: "docker" "start" "-a" "193dbb758517e9d9de5adc5dd3023b69b5aef19c61cb9c09f5d515b2b25dfdeb", kill_on_drop: false }`
[INFO] [stderr]    Compiling heapsize v0.4.2
[INFO] [stderr]    Compiling rlp v0.4.6
[INFO] [stderr]    Compiling static_assertions v0.2.5
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling nodrop v0.1.14
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling impl-serde v0.2.3
[INFO] [stderr]    Compiling ethereum-types-serialize v0.2.2
[INFO] [stderr]    Compiling tiny-keccak v1.5.0
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling sha2 v0.8.2
[INFO] [stderr]    Compiling impl-rlp v0.2.1
[INFO] [stderr]    Compiling uint v0.5.0
[INFO] [stderr]    Compiling uint v0.7.1
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling fixed-hash v0.3.2
[INFO] [stderr]    Compiling parity-codec v3.5.4
[INFO] [stderr]    Compiling ethbloom v0.6.4
[INFO] [stderr]    Compiling ethereum-types v0.5.2
[INFO] [stderr]    Compiling impl-codec v0.2.0
[INFO] [stderr]    Compiling primitive-types v0.3.0
[INFO] [stderr]    Compiling ethereum-types v0.6.0
[INFO] [stderr]    Compiling eth2_ssz v0.1.2
[INFO] [stderr]    Compiling eth2_ssz_derive v0.1.0
[INFO] [stderr]    Compiling proof v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.13s
[INFO] running `Command { std: "docker" "inspect" "193dbb758517e9d9de5adc5dd3023b69b5aef19c61cb9c09f5d515b2b25dfdeb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "193dbb758517e9d9de5adc5dd3023b69b5aef19c61cb9c09f5d515b2b25dfdeb", kill_on_drop: false }`
[INFO] [stdout] 193dbb758517e9d9de5adc5dd3023b69b5aef19c61cb9c09f5d515b2b25dfdeb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 20c445f6d484c0b605c99a5a9f092ea2df1cb2be9d826822e015d67616d631c4
[INFO] running `Command { std: "docker" "start" "-a" "20c445f6d484c0b605c99a5a9f092ea2df1cb2be9d826822e015d67616d631c4", kill_on_drop: false }`
[INFO] [stderr]    Compiling proof v0.0.0 (/opt/rustwide/workdir)
[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] [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] 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] 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] 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]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.00s
[INFO] running `Command { std: "docker" "inspect" "20c445f6d484c0b605c99a5a9f092ea2df1cb2be9d826822e015d67616d631c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20c445f6d484c0b605c99a5a9f092ea2df1cb2be9d826822e015d67616d631c4", kill_on_drop: false }`
[INFO] [stdout] 20c445f6d484c0b605c99a5a9f092ea2df1cb2be9d826822e015d67616d631c4
