[INFO] fetching crate balancer_sdk 0.1.16-alpha...
[INFO] checking balancer_sdk-0.1.16-alpha against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate balancer_sdk 0.1.16-alpha into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate balancer_sdk 0.1.16-alpha on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate balancer_sdk 0.1.16-alpha
[INFO] finished tweaking crates.io crate balancer_sdk 0.1.16-alpha
[INFO] tweaked toml for crates.io crate balancer_sdk 0.1.16-alpha written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate balancer_sdk 0.1.16-alpha already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unicode-ident v1.0.1
[INFO] [stderr]   Downloaded lock_api v0.4.7
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[INFO] [stderr]   Downloaded syn v1.0.96
[INFO] [stderr]   Downloaded ethcontract-derive v0.17.0
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[INFO] [stderr]   Downloaded openssl-sys v0.9.74
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[INFO] [stderr]   Downloaded web3-async-native-tls v0.4.0
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 18325fc0800fb0c5f1ef01e35fb8f2e5a13df129ea18de64792d6025c1ad0a93
[INFO] running `Command { std: "docker" "start" "-a" "18325fc0800fb0c5f1ef01e35fb8f2e5a13df129ea18de64792d6025c1ad0a93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "18325fc0800fb0c5f1ef01e35fb8f2e5a13df129ea18de64792d6025c1ad0a93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18325fc0800fb0c5f1ef01e35fb8f2e5a13df129ea18de64792d6025c1ad0a93", kill_on_drop: false }`
[INFO] [stdout] 18325fc0800fb0c5f1ef01e35fb8f2e5a13df129ea18de64792d6025c1ad0a93
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5656d128947619290360560aec658fe86df0960685163068527f5520394e7a5d
[INFO] running `Command { std: "docker" "start" "-a" "5656d128947619290360560aec658fe86df0960685163068527f5520394e7a5d", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling syn v1.0.96
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling radium v0.6.2
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking rustc-hex v2.1.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]    Compiling serde_json v1.0.81
[INFO] [stderr]    Compiling openssl-sys v0.9.74
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]     Checking rand v0.8.5
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[INFO] [stderr]     Checking crypto-common v0.1.3
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[INFO] [stderr]    Compiling async-stream-impl v0.3.3
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[INFO] [stderr]     Checking primitive-types v0.9.1
[INFO] [stderr]     Checking ethabi v13.0.0
[INFO] [stderr]     Checking ethereum-types v0.11.0
[INFO] [stderr]     Checking ethereum-types v0.12.1
[INFO] [stderr]     Checking ethereum-types v0.13.1
[INFO] [stderr]     Checking ethabi v17.0.0
[INFO] [stderr]    Compiling ethabi v16.0.0
[INFO] [stderr]     Checking ethabi v14.1.0
[INFO] [stderr]     Checking ethers-core v0.10.0
[INFO] [stderr]     Checking hyper v0.14.19
[INFO] [stderr]    Compiling web3 v0.18.0
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.11
[INFO] [stderr]     Checking web3 v0.17.0
[INFO] [stderr]    Compiling ethcontract-common v0.17.0
[INFO] [stderr]    Compiling ethcontract-generate v0.17.0
[INFO] [stderr]    Compiling ethcontract-derive v0.17.0
[INFO] [stderr]     Checking ethcontract v0.17.0
[INFO] [stderr]     Checking balancer_sdk v0.1.16-alpha (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `dotenv` is imported redundantly
[INFO] [stdout]  --> src/helpers/mod.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use dotenv;
[INFO] [stdout]   |     ^^^^^^ the item `dotenv` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `dotenv` is imported redundantly
[INFO] [stdout]  --> src/helpers/mod.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use dotenv;
[INFO] [stdout]   |     ^^^^^^ the item `dotenv` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `FromStr` is imported redundantly
[INFO] [stdout]   --> examples/base_pool_methods.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use balancer_sdk::*;
[INFO] [stdout]    |     --------------- the item `FromStr` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 17 | use std::str::FromStr;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `FromStr` is imported redundantly
[INFO] [stdout]  --> examples/check_token_allowance.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use balancer_sdk::{helpers::build_web3, *};
[INFO] [stdout]   |                                         - the item `FromStr` is already imported here
[INFO] [stdout] 8 | use helpers::*;
[INFO] [stdout] 9 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Account` is imported redundantly
[INFO] [stdout]   --> examples/batch_swap.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | use balancer_sdk::*;
[INFO] [stdout]    |     --------------- the item `Account` is already imported here
[INFO] [stdout] 22 | use ethcontract::Account;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Address` is imported redundantly
[INFO] [stdout]   --> examples/batch_swap.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | use balancer_sdk::*;
[INFO] [stdout]    |     --------------- the item `Address` is already imported here
[INFO] [stdout] 22 | use ethcontract::Account;
[INFO] [stdout] 23 | use ethcontract::Address;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `PrivateKey` is imported redundantly
[INFO] [stdout]   --> examples/batch_swap.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | use balancer_sdk::*;
[INFO] [stdout]    |     --------------- the item `PrivateKey` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 24 | use ethcontract::PrivateKey;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `I256` is imported redundantly
[INFO] [stdout]   --> examples/batch_swap.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | use balancer_sdk::*;
[INFO] [stdout]    |     --------------- the item `I256` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 25 | use ethcontract::I256;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `U256` is imported redundantly
[INFO] [stdout]   --> examples/batch_swap.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | use balancer_sdk::*;
[INFO] [stdout]    |     --------------- the item `U256` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 26 | use ethcontract::U256;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `FromStr` is imported redundantly
[INFO] [stdout]   --> examples/batch_swap.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | use balancer_sdk::*;
[INFO] [stdout]    |     --------------- the item `FromStr` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 28 | use std::str::FromStr;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `FromStr` is imported redundantly
[INFO] [stdout]   --> examples/approve_token.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::str::FromStr;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     *,
[INFO] [stdout]    |     - the item `FromStr` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `PrivateKey` is imported redundantly
[INFO] [stdout]   --> examples/approve_token.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     *,
[INFO] [stdout]    |     - the item `PrivateKey` is already imported here
[INFO] [stdout] 18 | };
[INFO] [stdout] 19 | use ethcontract::PrivateKey;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Account` is imported redundantly
[INFO] [stdout]   --> examples/single_swap.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | use balancer_sdk::*;
[INFO] [stdout]    |     --------------- the item `Account` is already imported here
[INFO] [stdout] 21 | use ethcontract::Account;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Address` is imported redundantly
[INFO] [stdout]   --> examples/single_swap.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | use balancer_sdk::*;
[INFO] [stdout]    |     --------------- the item `Address` is already imported here
[INFO] [stdout] 21 | use ethcontract::Account;
[INFO] [stdout] 22 | use ethcontract::Address;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `PrivateKey` is imported redundantly
[INFO] [stdout]   --> examples/single_swap.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | use balancer_sdk::*;
[INFO] [stdout]    |     --------------- the item `PrivateKey` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 23 | use ethcontract::PrivateKey;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `U256` is imported redundantly
[INFO] [stdout]   --> examples/single_swap.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | use balancer_sdk::*;
[INFO] [stdout]    |     --------------- the item `U256` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 24 | use ethcontract::U256;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Address` is imported redundantly
[INFO] [stdout]   --> examples/vault_methods.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use balancer_sdk::*;
[INFO] [stdout]    |     --------------- the item `Address` is already imported here
[INFO] [stdout] 16 | use ethcontract::Address;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `FromStr` is imported redundantly
[INFO] [stdout]   --> examples/single_swap.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | use balancer_sdk::*;
[INFO] [stdout]    |     --------------- the item `FromStr` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 26 | use std::str::FromStr;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `FromStr` is imported redundantly
[INFO] [stdout]   --> examples/vault_methods.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use balancer_sdk::*;
[INFO] [stdout]    |     --------------- the item `FromStr` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 18 | use std::str::FromStr;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `pool_type`, `address`, and `token_list` are never read
[INFO] [stdout]  --> examples/sample_data/mod.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Pool {
[INFO] [stdout]   |            ---- fields in this struct
[INFO] [stdout] 2 |     pub pool_type: &'static str,
[INFO] [stdout]   |         ^^^^^^^^^
[INFO] [stdout] 3 |     pub address: &'static str,
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout] 4 |     pub id: &'static str,
[INFO] [stdout] 5 |     pub token_list: [&'static str; 2],
[INFO] [stdout]   |         ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `pool_type`, `address`, `id`, and `token_list` are never read
[INFO] [stdout]  --> examples/sample_data/mod.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Pool {
[INFO] [stdout]   |            ---- fields in this struct
[INFO] [stdout] 2 |     pub pool_type: &'static str,
[INFO] [stdout]   |         ^^^^^^^^^
[INFO] [stdout] 3 |     pub address: &'static str,
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout] 4 |     pub id: &'static str,
[INFO] [stdout]   |         ^^
[INFO] [stdout] 5 |     pub token_list: [&'static str; 2],
[INFO] [stdout]   |         ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `pool_type`, `address`, `id`, and `token_list` are never read
[INFO] [stdout]  --> examples/sample_data/mod.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Pool {
[INFO] [stdout]   |            ---- fields in this struct
[INFO] [stdout] 2 |     pub pool_type: &'static str,
[INFO] [stdout]   |         ^^^^^^^^^
[INFO] [stdout] 3 |     pub address: &'static str,
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout] 4 |     pub id: &'static str,
[INFO] [stdout]   |         ^^
[INFO] [stdout] 5 |     pub token_list: [&'static str; 2],
[INFO] [stdout]   |         ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `pool_type`, `address`, and `token_list` are never read
[INFO] [stdout]  --> examples/sample_data/mod.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Pool {
[INFO] [stdout]   |            ---- fields in this struct
[INFO] [stdout] 2 |     pub pool_type: &'static str,
[INFO] [stdout]   |         ^^^^^^^^^
[INFO] [stdout] 3 |     pub address: &'static str,
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout] 4 |     pub id: &'static str,
[INFO] [stdout] 5 |     pub token_list: [&'static str; 2],
[INFO] [stdout]   |         ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `pool_type`, `address`, and `token_list` are never read
[INFO] [stdout]  --> examples/sample_data/mod.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Pool {
[INFO] [stdout]   |            ---- fields in this struct
[INFO] [stdout] 2 |     pub pool_type: &'static str,
[INFO] [stdout]   |         ^^^^^^^^^
[INFO] [stdout] 3 |     pub address: &'static str,
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout] 4 |     pub id: &'static str,
[INFO] [stdout] 5 |     pub token_list: [&'static str; 2],
[INFO] [stdout]   |         ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Address` is imported redundantly
[INFO] [stdout]   --> examples/query_batch_swap.rs:20:19
[INFO] [stdout]    |
[INFO] [stdout] 19 | use balancer_sdk::*;
[INFO] [stdout]    |     --------------- the item `Address` is already imported here
[INFO] [stdout] 20 | use ethcontract::{Address, U256};
[INFO] [stdout]    |                   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `U256` is imported redundantly
[INFO] [stdout]   --> examples/query_batch_swap.rs:20:28
[INFO] [stdout]    |
[INFO] [stdout] 19 | use balancer_sdk::*;
[INFO] [stdout]    |     --------------- the item `U256` is already imported here
[INFO] [stdout] 20 | use ethcontract::{Address, U256};
[INFO] [stdout]    |                            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `FromStr` is imported redundantly
[INFO] [stdout]   --> examples/query_batch_swap.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | use balancer_sdk::*;
[INFO] [stdout]    |     --------------- the item `FromStr` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 22 | use std::str::FromStr;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `pool_type`, `address`, and `token_list` are never read
[INFO] [stdout]  --> examples/sample_data/mod.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Pool {
[INFO] [stdout]   |            ---- fields in this struct
[INFO] [stdout] 2 |     pub pool_type: &'static str,
[INFO] [stdout]   |         ^^^^^^^^^
[INFO] [stdout] 3 |     pub address: &'static str,
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout] 4 |     pub id: &'static str,
[INFO] [stdout] 5 |     pub token_list: [&'static str; 2],
[INFO] [stdout]   |         ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 39.50s
[INFO] running `Command { std: "docker" "inspect" "5656d128947619290360560aec658fe86df0960685163068527f5520394e7a5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5656d128947619290360560aec658fe86df0960685163068527f5520394e7a5d", kill_on_drop: false }`
[INFO] [stdout] 5656d128947619290360560aec658fe86df0960685163068527f5520394e7a5d
[INFO] checking balancer_sdk-0.1.16-alpha against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate balancer_sdk 0.1.16-alpha into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate balancer_sdk 0.1.16-alpha on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate balancer_sdk 0.1.16-alpha
[INFO] finished tweaking crates.io crate balancer_sdk 0.1.16-alpha
[INFO] tweaked toml for crates.io crate balancer_sdk 0.1.16-alpha written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate balancer_sdk 0.1.16-alpha already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 88c248c1cc2c6b65163789053e175b5230dd2994d5b9edda0f2ffad231d9e193
[INFO] running `Command { std: "docker" "start" "-a" "88c248c1cc2c6b65163789053e175b5230dd2994d5b9edda0f2ffad231d9e193", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "88c248c1cc2c6b65163789053e175b5230dd2994d5b9edda0f2ffad231d9e193", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88c248c1cc2c6b65163789053e175b5230dd2994d5b9edda0f2ffad231d9e193", kill_on_drop: false }`
[INFO] [stdout] 88c248c1cc2c6b65163789053e175b5230dd2994d5b9edda0f2ffad231d9e193
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8a1b273b41f70319df71208fe231d3faa63b6372dd6ed2b883bc215d98a40f59
[INFO] running `Command { std: "docker" "start" "-a" "8a1b273b41f70319df71208fe231d3faa63b6372dd6ed2b883bc215d98a40f59", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling syn v1.0.96
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling radium v0.6.2
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking rustc-hex v2.1.0
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]    Compiling openssl-sys v0.9.74
[INFO] [stderr]     Checking itoa v1.0.2
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling serde_json v1.0.81
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]     Checking byte-slice-cast v1.2.1
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]     Checking mio v0.8.3
[INFO] [stderr]     Checking uint v0.9.3
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking fixed-hash v0.7.0
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/signal-hook-registry-1.4.0/src/half_lock.rs:145:13
[INFO] [stdout]     |
[INFO] [stdout] 145 |             unsafe { libc::abort() };
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `signal-hook-registry` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "8a1b273b41f70319df71208fe231d3faa63b6372dd6ed2b883bc215d98a40f59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a1b273b41f70319df71208fe231d3faa63b6372dd6ed2b883bc215d98a40f59", kill_on_drop: false }`
[INFO] [stdout] 8a1b273b41f70319df71208fe231d3faa63b6372dd6ed2b883bc215d98a40f59