[INFO] fetching crate ethers-signers 0.4.6...
[INFO] checking ethers-signers-0.4.6 against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] extracting crate ethers-signers 0.4.6 into /workspace/builds/worker-100/source
[INFO] validating manifest of crates.io crate ethers-signers 0.4.6 on toolchain 39e1293fce4b650061e85dda88aa428f726a8444
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ethers-signers 0.4.6
[INFO] finished tweaking crates.io crate ethers-signers 0.4.6
[INFO] tweaked toml for crates.io crate ethers-signers 0.4.6 written to /workspace/builds/worker-100/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "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" "+39e1293fce4b650061e85dda88aa428f726a8444" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pkcs8 v0.7.5
[INFO] [stderr]   Downloaded ff v0.10.1
[INFO] [stderr]   Downloaded ecdsa v0.12.4
[INFO] [stderr]   Downloaded block-modes v0.8.1
[INFO] [stderr]   Downloaded p256 v0.9.0
[INFO] [stderr]   Downloaded rusoto_core v0.47.0
[INFO] [stderr]   Downloaded base58check v0.1.0
[INFO] [stderr]   Downloaded radium v0.3.0
[INFO] [stderr]   Downloaded coins-bip39 v0.3.0
[INFO] [stderr]   Downloaded group v0.10.0
[INFO] [stderr]   Downloaded bech32 v0.7.3
[INFO] [stderr]   Downloaded eth-keystore v0.3.0
[INFO] [stderr]   Downloaded coins-bip32 v0.3.0
[INFO] [stderr]   Downloaded hidapi v1.2.6
[INFO] [stderr]   Downloaded coins-ledger v0.3.0
[INFO] [stderr]   Downloaded bitvec v0.17.4
[INFO] [stderr]   Downloaded ripemd160 v0.9.1
[INFO] [stderr]   Downloaded p384 v0.8.0
[INFO] [stderr]   Downloaded ethers-core v0.4.6
[INFO] [stderr]   Downloaded cmac v0.6.0
[INFO] [stderr]   Downloaded k256 v0.9.6
[INFO] [stderr]   Downloaded rusoto_kms v0.47.0
[INFO] [stderr]   Downloaded rusb v0.8.1
[INFO] [stderr]   Downloaded der v0.4.1
[INFO] [stderr]   Downloaded elliptic-curve v0.10.5
[INFO] [stderr]   Downloaded yubihsm v0.39.0
[INFO] [stderr]   Downloaded crypto-bigint v0.2.2
[INFO] [stderr]   Downloaded ethabi v14.1.0
[INFO] [stderr]   Downloaded coins-core v0.2.2
[INFO] [stderr]   Downloaded ctr v0.7.0
[INFO] [stderr]   Downloaded const-oid v0.6.0
[INFO] [stderr]   Downloaded signature_derive v1.0.0-pre.3
[INFO] [stderr]   Downloaded spki v0.4.0
[INFO] [stderr]   Downloaded rusoto_credential v0.47.0
[INFO] [stderr]   Downloaded rusoto_signature v0.47.0
[INFO] [stderr]   Downloaded ccm v0.4.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7603c46631af23c00b1edcd0b10cefcbb7d593c87f45db44e40d1854fa079f92
[INFO] running `Command { std: "docker" "start" "-a" "7603c46631af23c00b1edcd0b10cefcbb7d593c87f45db44e40d1854fa079f92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7603c46631af23c00b1edcd0b10cefcbb7d593c87f45db44e40d1854fa079f92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7603c46631af23c00b1edcd0b10cefcbb7d593c87f45db44e40d1854fa079f92", kill_on_drop: false }`
[INFO] [stdout] 7603c46631af23c00b1edcd0b10cefcbb7d593c87f45db44e40d1854fa079f92
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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" "+39e1293fce4b650061e85dda88aa428f726a8444" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0564aebd7ce92125db28ce1277106960c33f7d0b42c82cbb7807a6b744323098
[INFO] running `Command { std: "docker" "start" "-a" "0564aebd7ce92125db28ce1277106960c33f7d0b42c82cbb7807a6b744323098", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: failed to create jobserver
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to increase jobserver pipe capacity from 4096 to 8192; jobserver otherwise might deadlock
[INFO] running `Command { std: "docker" "inspect" "0564aebd7ce92125db28ce1277106960c33f7d0b42c82cbb7807a6b744323098", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0564aebd7ce92125db28ce1277106960c33f7d0b42c82cbb7807a6b744323098", kill_on_drop: false }`
[INFO] [stdout] 0564aebd7ce92125db28ce1277106960c33f7d0b42c82cbb7807a6b744323098