[INFO] fetching crate enr 0.5.0...
[INFO] checking enr-0.5.0 against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] extracting crate enr 0.5.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate enr 0.5.0 on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate enr 0.5.0
[INFO] finished tweaking crates.io crate enr 0.5.0
[INFO] tweaked toml for crates.io crate enr 0.5.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded secp256k1 v0.20.1
[INFO] [stderr]   Downloaded secp256k1-sys v0.4.0
[INFO] [stderr]   Downloaded elliptic-curve v0.8.5
[INFO] [stderr]   Downloaded ed25519 v1.0.3
[INFO] [stderr]   Downloaded ecdsa v0.10.2
[INFO] [stderr]   Downloaded der v0.1.0
[INFO] [stderr]   Downloaded curve25519-dalek v3.1.0
[INFO] [stderr]   Downloaded bitvec v0.18.5
[INFO] [stderr]   Downloaded k256 v0.7.3
[INFO] [stderr]   Downloaded const-oid v0.4.5
[INFO] [stderr]   Downloaded pkcs8 v0.3.3
[INFO] [stderr]   Downloaded rlp v0.5.0
[INFO] [stderr]   Downloaded zeroize_derive v1.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 837affacc85d0e06b3259be8285b88bae8657d1b76651041a363c408c349defa
[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" "837affacc85d0e06b3259be8285b88bae8657d1b76651041a363c408c349defa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "837affacc85d0e06b3259be8285b88bae8657d1b76651041a363c408c349defa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "837affacc85d0e06b3259be8285b88bae8657d1b76651041a363c408c349defa", kill_on_drop: false }`
[INFO] [stdout] 837affacc85d0e06b3259be8285b88bae8657d1b76651041a363c408c349defa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cfe3c913b3e15be7f888804334b49272da951a08619e867eb491ae6bde9239ed
[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" "cfe3c913b3e15be7f888804334b49272da951a08619e867eb491ae6bde9239ed", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking subtle v2.4.0
[INFO] [stderr]     Checking radium v0.3.0
[INFO] [stderr]     Checking funty v1.1.0
[INFO] [stderr]     Checking wyz v0.2.0
[INFO] [stderr]     Checking const-oid v0.4.5
[INFO] [stderr]     Checking block-padding v0.2.1
[INFO] [stderr]     Checking zeroize v1.2.0
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking cpuid-bool v0.1.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking keccak v0.1.0
[INFO] [stderr]     Checking rustc-hex v2.1.0
[INFO] [stderr]     Checking bs58 v0.3.1
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling secp256k1-sys v0.4.0
[INFO] [stderr]     Checking der v0.1.0
[INFO] [stderr]     Checking rlp v0.5.0
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking pkcs8 v0.3.3
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking bitvec v0.18.5
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking crypto-mac v0.10.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking hmac v0.10.1
[INFO] [stderr]     Checking signature v1.2.2
[INFO] [stderr]     Checking sha2 v0.9.3
[INFO] [stderr]     Checking sha3 v0.9.1
[INFO] [stderr]     Checking secp256k1 v0.20.1
[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 ecdsa v0.10.2
[INFO] [stderr]     Checking k256 v0.7.3
[INFO] [stderr]     Checking enr v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/lib.rs:1228:20
[INFO] [stdout]      |
[INFO] [stdout] 1228 |             panic!(e);
[INFO] [stdout]      |                    ^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]      = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]      |
[INFO] [stdout] 1228 |             panic!("{}", e);
[INFO] [stdout]      |                    ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]      |
[INFO] [stdout] 1228 |             std::panic::panic_any(e);
[INFO] [stdout]      |             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.05s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "cfe3c913b3e15be7f888804334b49272da951a08619e867eb491ae6bde9239ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfe3c913b3e15be7f888804334b49272da951a08619e867eb491ae6bde9239ed", kill_on_drop: false }`
[INFO] [stdout] cfe3c913b3e15be7f888804334b49272da951a08619e867eb491ae6bde9239ed