[INFO] fetching crate ethers-signers 0.2.2...
[INFO] testing ethers-signers-0.2.2 against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] extracting crate ethers-signers 0.2.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate ethers-signers 0.2.2 on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ethers-signers 0.2.2
[INFO] finished tweaking crates.io crate ethers-signers 0.2.2
[INFO] tweaked toml for crates.io crate ethers-signers 0.2.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "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" "+b70888601af92f6cdc0364abab3446e418b91d36" "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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dd78dd90925d6ed137eb154fb1579aeaacf3833e4cc5e462af35b60f9699b922
[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" "dd78dd90925d6ed137eb154fb1579aeaacf3833e4cc5e462af35b60f9699b922", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dd78dd90925d6ed137eb154fb1579aeaacf3833e4cc5e462af35b60f9699b922", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd78dd90925d6ed137eb154fb1579aeaacf3833e4cc5e462af35b60f9699b922", kill_on_drop: false }`
[INFO] [stdout] dd78dd90925d6ed137eb154fb1579aeaacf3833e4cc5e462af35b60f9699b922
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8993a9b1aca85512024efebb78e057300ced89a2af216728d53af493fe5f9007
[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" "8993a9b1aca85512024efebb78e057300ced89a2af216728d53af493fe5f9007", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling wyz v0.2.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling tap v1.0.1
[INFO] [stderr]    Compiling arrayvec v0.7.1
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]    Compiling base64ct v1.0.0
[INFO] [stderr]    Compiling cpufeatures v0.1.5
[INFO] [stderr]    Compiling anyhow v1.0.42
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling futures-task v0.3.16
[INFO] [stderr]    Compiling futures-core v0.3.16
[INFO] [stderr]    Compiling slab v0.4.3
[INFO] [stderr]    Compiling async-trait v0.1.51
[INFO] [stderr]    Compiling pin-project-lite v0.2.7
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling bitvec v0.18.5
[INFO] [stderr]    Compiling bitvec v0.20.4
[INFO] [stderr]    Compiling crypto-mac v0.10.1
[INFO] [stderr]    Compiling cipher v0.2.5
[INFO] [stderr]    Compiling sha2 v0.9.5
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling uint v0.9.1
[INFO] [stderr]    Compiling hmac v0.10.1
[INFO] [stderr]    Compiling futures-macro v0.3.16
[INFO] [stderr]    Compiling futures-util v0.3.16
[INFO] [stderr]    Compiling salsa20 v0.7.2
[INFO] [stderr]    Compiling aes-soft v0.6.4
[INFO] [stderr]    Compiling ctr v0.6.0
[INFO] [stderr]    Compiling aes v0.6.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling password-hash v0.1.4
[INFO] [stderr]    Compiling elliptic-curve v0.9.12
[INFO] [stderr]    Compiling signature v1.2.2
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling pbkdf2 v0.7.5
[INFO] [stderr]    Compiling scrypt v0.6.5
[INFO] [stderr]    Compiling ff v0.8.0
[INFO] [stderr]    Compiling group v0.8.0
[INFO] [stderr]    Compiling fixed-hash v0.7.0
[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 thiserror-impl v1.0.26
[INFO] [stderr]    Compiling impl-trait-for-tuples v0.2.1
[INFO] [stderr]    Compiling thiserror v1.0.26
[INFO] [stderr]    Compiling futures-executor v0.3.16
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling bytes v1.0.1
[INFO] [stderr]    Compiling impl-serde v0.3.1
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling rlp v0.5.1
[INFO] [stderr]    Compiling impl-rlp v0.3.0
[INFO] [stderr]    Compiling ethbloom v0.11.0
[INFO] [stderr]    Compiling eth-keystore v0.2.1
[INFO] [stderr]    Compiling proc-macro-crate v1.0.0
[INFO] [stderr]    Compiling parity-scale-codec-derive v2.2.0
[INFO] [stderr]    Compiling parity-scale-codec v2.2.0
[INFO] [stderr]    Compiling impl-codec v0.5.1
[INFO] [stderr]    Compiling primitive-types v0.9.1
[INFO] [stderr]    Compiling ethereum-types v0.11.0
[INFO] [stderr]    Compiling ethabi-next v13.3.0
[INFO] [stderr]    Compiling ethers-core v0.2.2
[INFO] [stderr]    Compiling ethers-signers v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 32s
[INFO] running `Command { std: "docker" "inspect" "8993a9b1aca85512024efebb78e057300ced89a2af216728d53af493fe5f9007", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8993a9b1aca85512024efebb78e057300ced89a2af216728d53af493fe5f9007", kill_on_drop: false }`
[INFO] [stdout] 8993a9b1aca85512024efebb78e057300ced89a2af216728d53af493fe5f9007
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9ea603cf9d240e94561a42c31384564c92e46ca2815ac379319b12f7af009cd5
[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" "9ea603cf9d240e94561a42c31384564c92e46ca2815ac379319b12f7af009cd5", kill_on_drop: false }`
[INFO] [stderr]    Compiling ethers-signers v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `tempfile`
[INFO] [stdout]    --> src/wallet/private_key.rs:146:9
[INFO] [stdout]     |
[INFO] [stdout] 146 |     use tempfile::tempdir;
[INFO] [stdout]     |         ^^^^^^^^ use of undeclared crate or module `tempfile`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `tokio`
[INFO] [stdout]    --> src/wallet/private_key.rs:148:7
[INFO] [stdout]     |
[INFO] [stdout] 148 |     #[tokio::test]
[INFO] [stdout]     |       ^^^^^ use of undeclared crate or module `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `tokio`
[INFO] [stdout]    --> src/wallet/private_key.rs:171:7
[INFO] [stdout]     |
[INFO] [stdout] 171 |     #[tokio::test]
[INFO] [stdout]     |       ^^^^^ use of undeclared crate or module `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `tokio`
[INFO] [stdout]    --> src/wallet/private_key.rs:194:7
[INFO] [stdout]     |
[INFO] [stdout] 194 |     #[tokio::test]
[INFO] [stdout]     |       ^^^^^ use of undeclared crate or module `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ethers-signers` due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "9ea603cf9d240e94561a42c31384564c92e46ca2815ac379319b12f7af009cd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ea603cf9d240e94561a42c31384564c92e46ca2815ac379319b12f7af009cd5", kill_on_drop: false }`
[INFO] [stdout] 9ea603cf9d240e94561a42c31384564c92e46ca2815ac379319b12f7af009cd5