[INFO] fetching crate ethers-core 0.2.2...
[INFO] checking ethers-core-0.2.2 against master#c5fbcd35a8217a17f6b63a22217ace06cf8f5f02 for pr-86194
[INFO] extracting crate ethers-core 0.2.2 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate ethers-core 0.2.2 on toolchain c5fbcd35a8217a17f6b63a22217ace06cf8f5f02
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ethers-core 0.2.2
[INFO] finished tweaking crates.io crate ethers-core 0.2.2
[INFO] tweaked toml for crates.io crate ethers-core 0.2.2 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4659577d4422b49caa4075089e751eed20c8ab02b48019e887d6e978282ac699
[INFO] running `Command { std: "docker" "start" "-a" "4659577d4422b49caa4075089e751eed20c8ab02b48019e887d6e978282ac699", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4659577d4422b49caa4075089e751eed20c8ab02b48019e887d6e978282ac699", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4659577d4422b49caa4075089e751eed20c8ab02b48019e887d6e978282ac699", kill_on_drop: false }`
[INFO] [stdout] 4659577d4422b49caa4075089e751eed20c8ab02b48019e887d6e978282ac699
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ae52885bed4ee48ef6fcc8574fe35256dcb2fb3831da720c0d862a57cce6a387
[INFO] running `Command { std: "docker" "start" "-a" "ae52885bed4ee48ef6fcc8574fe35256dcb2fb3831da720c0d862a57cce6a387", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]     Checking funty v1.1.0
[INFO] [stderr]     Checking wyz v0.2.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking byte-slice-cast v1.0.0
[INFO] [stderr]     Checking arrayvec v0.7.1
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking zeroize v1.3.0
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking crypto-mac v0.10.0
[INFO] [stderr]     Checking signature v1.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking hmac v0.10.1
[INFO] [stderr]     Checking bitvec v0.20.4
[INFO] [stderr]     Checking bitvec v0.18.5
[INFO] [stderr]     Checking uint v0.9.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking elliptic-curve v0.9.12
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking ff v0.8.0
[INFO] [stderr]     Checking group v0.8.0
[INFO] [stderr]     Checking elliptic-curve v0.8.5
[INFO] [stderr]     Checking fixed-hash v0.7.0
[INFO] [stderr]     Checking ecdsa v0.10.2
[INFO] [stderr]     Checking k256 v0.7.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.25
[INFO] [stderr]     Checking thiserror v1.0.25
[INFO] [stderr]     Checking serde v1.0.126
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]     Checking parity-scale-codec v2.1.1
[INFO] [stderr]     Checking impl-serde v0.3.1
[INFO] [stderr]     Checking rlp v0.5.0
[INFO] [stderr]     Checking impl-codec v0.5.0
[INFO] [stderr]     Checking impl-rlp v0.3.0
[INFO] [stderr]     Checking ethbloom v0.11.0
[INFO] [stderr]     Checking primitive-types v0.9.0
[INFO] [stderr]     Checking ethereum-types v0.11.0
[INFO] [stderr]     Checking ethabi-next v13.3.0
[INFO] [stderr]     Checking ethers-core v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `once_cell`
[INFO] [stdout]     --> src/types/i256.rs:1259:9
[INFO] [stdout]      |
[INFO] [stdout] 1259 |     use once_cell::sync::Lazy;
[INFO] [stdout]      |         ^^^^^^^^^ use of undeclared crate or module `once_cell`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `bincode`
[INFO] [stdout]    --> src/types/ens.rs:109:9
[INFO] [stdout]     |
[INFO] [stdout] 109 |         bincode::serialize(&name).unwrap_err();
[INFO] [stdout]     |         ^^^^^^^ use of undeclared crate or module `bincode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `bincode`
[INFO] [stdout]    --> src/types/ens.rs:118:13
[INFO] [stdout]     |
[INFO] [stdout] 118 |             bincode::serialize(&addr).unwrap(),
[INFO] [stdout]     |             ^^^^^^^ use of undeclared crate or module `bincode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `bincode`
[INFO] [stdout]    --> src/types/ens.rs:119:13
[INFO] [stdout]     |
[INFO] [stdout] 119 |             bincode::serialize(&union).unwrap(),
[INFO] [stdout]     |             ^^^^^^^ use of undeclared crate or module `bincode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Lazy` in this scope
[INFO] [stdout]     --> src/types/i256.rs:1262:21
[INFO] [stdout]      |
[INFO] [stdout] 1262 |     static MIN_ABS: Lazy<U256> = Lazy::new(|| U256::from(1) << 255);
[INFO] [stdout]      |                     ^^^^ not found in this scope
[INFO] [stdout]      |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]      |
[INFO] [stdout] 1257 |     use core::lazy::Lazy;
[INFO] [stdout]      |
[INFO] [stdout] 1257 |     use std::lazy::Lazy;
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Lazy`
[INFO] [stdout]     --> src/types/i256.rs:1262:34
[INFO] [stdout]      |
[INFO] [stdout] 1262 |     static MIN_ABS: Lazy<U256> = Lazy::new(|| U256::from(1) << 255);
[INFO] [stdout]      |                                  ^^^^ not found in this scope
[INFO] [stdout]      |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]      |
[INFO] [stdout] 1257 |     use core::lazy::Lazy;
[INFO] [stdout]      |
[INFO] [stdout] 1257 |     use std::lazy::Lazy;
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ethers-core`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "ae52885bed4ee48ef6fcc8574fe35256dcb2fb3831da720c0d862a57cce6a387", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae52885bed4ee48ef6fcc8574fe35256dcb2fb3831da720c0d862a57cce6a387", kill_on_drop: false }`
[INFO] [stdout] ae52885bed4ee48ef6fcc8574fe35256dcb2fb3831da720c0d862a57cce6a387