[INFO] fetching crate ethers-core 0.2.2...
[INFO] testing ethers-core-0.2.2 against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] extracting crate ethers-core 0.2.2 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate ethers-core 0.2.2 on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "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-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8973f0cc58ae254b1f9b680a52ea66fe221e85d52d6e6dee886726b5da568e90
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8973f0cc58ae254b1f9b680a52ea66fe221e85d52d6e6dee886726b5da568e90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8973f0cc58ae254b1f9b680a52ea66fe221e85d52d6e6dee886726b5da568e90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8973f0cc58ae254b1f9b680a52ea66fe221e85d52d6e6dee886726b5da568e90", kill_on_drop: false }`
[INFO] [stdout] 8973f0cc58ae254b1f9b680a52ea66fe221e85d52d6e6dee886726b5da568e90
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a36b1b3d7f8049b35571fce919ad479de0aaa08299140bd44f01ec44660267b4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a36b1b3d7f8049b35571fce919ad479de0aaa08299140bd44f01ec44660267b4", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling funty v1.1.0
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling radium v0.6.2
[INFO] [stderr]    Compiling subtle v2.4.0
[INFO] [stderr]    Compiling rustc-hex v2.1.0
[INFO] [stderr]    Compiling radium v0.3.0
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling byte-slice-cast v1.0.0
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling arrayvec v0.7.0
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling block-padding v0.2.1
[INFO] [stderr]    Compiling opaque-debug v0.3.0
[INFO] [stderr]    Compiling zeroize v1.3.0
[INFO] [stderr]    Compiling keccak v0.1.0
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling uint v0.9.0
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling bitvec v0.18.5
[INFO] [stderr]    Compiling bitvec v0.20.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling fixed-hash v0.7.0
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling crypto-mac v0.10.0
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling elliptic-curve v0.9.12
[INFO] [stderr]    Compiling ff v0.8.0
[INFO] [stderr]    Compiling sha3 v0.9.1
[INFO] [stderr]    Compiling hmac v0.10.1
[INFO] [stderr]    Compiling signature v1.2.2
[INFO] [stderr]    Compiling group v0.8.0
[INFO] [stderr]    Compiling elliptic-curve v0.8.5
[INFO] [stderr]    Compiling ecdsa v0.10.2
[INFO] [stderr]    Compiling k256 v0.7.3
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling thiserror-impl v1.0.25
[INFO] [stderr]    Compiling thiserror v1.0.25
[INFO] [stderr]    Compiling bytes v1.0.1
[INFO] [stderr]    Compiling impl-serde v0.3.1
[INFO] [stderr]    Compiling parity-scale-codec v2.1.1
[INFO] [stderr]    Compiling rlp v0.5.0
[INFO] [stderr]    Compiling impl-rlp v0.3.0
[INFO] [stderr]    Compiling ethbloom v0.11.0
[INFO] [stderr]    Compiling impl-codec v0.5.0
[INFO] [stderr]    Compiling primitive-types v0.9.0
[INFO] [stderr]    Compiling ethereum-types v0.11.0
[INFO] [stderr]    Compiling ethabi-next v13.3.0
[INFO] [stderr]    Compiling ethers-core v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 42.17s
[INFO] running `Command { std: "docker" "inspect" "a36b1b3d7f8049b35571fce919ad479de0aaa08299140bd44f01ec44660267b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a36b1b3d7f8049b35571fce919ad479de0aaa08299140bd44f01ec44660267b4", kill_on_drop: false }`
[INFO] [stdout] a36b1b3d7f8049b35571fce919ad479de0aaa08299140bd44f01ec44660267b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 378142054e86292b382ba81c8f78abdf9524f8d0d896e7b585b5ae0f2f151162
[INFO] running `Command { std: "docker" "start" "-a" "378142054e86292b382ba81c8f78abdf9524f8d0d896e7b585b5ae0f2f151162", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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] running `Command { std: "docker" "inspect" "378142054e86292b382ba81c8f78abdf9524f8d0d896e7b585b5ae0f2f151162", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "378142054e86292b382ba81c8f78abdf9524f8d0d896e7b585b5ae0f2f151162", kill_on_drop: false }`
[INFO] [stdout] 378142054e86292b382ba81c8f78abdf9524f8d0d896e7b585b5ae0f2f151162