[INFO] fetching crate bulut 0.3.0...
[INFO] checking bulut-0.3.0 against master#5ad98b4026d5172f27615b105658bc8bfd677be8 for pr-129422
[INFO] extracting crate bulut 0.3.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate bulut 0.3.0 on toolchain 5ad98b4026d5172f27615b105658bc8bfd677be8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5ad98b4026d5172f27615b105658bc8bfd677be8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bulut 0.3.0
[INFO] finished tweaking crates.io crate bulut 0.3.0
[INFO] tweaked toml for crates.io crate bulut 0.3.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate bulut 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5ad98b4026d5172f27615b105658bc8bfd677be8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded time v0.1.44
[INFO] [stderr]   Downloaded colored v1.9.3
[INFO] [stderr]   Downloaded libc v0.2.121
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+5ad98b4026d5172f27615b105658bc8bfd677be8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e62259faf4b029d51cc6a97e04b214d59f140609a3fa514d5c04a15c9f0daa07
[INFO] running `Command { std: "docker" "start" "-a" "e62259faf4b029d51cc6a97e04b214d59f140609a3fa514d5c04a15c9f0daa07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e62259faf4b029d51cc6a97e04b214d59f140609a3fa514d5c04a15c9f0daa07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e62259faf4b029d51cc6a97e04b214d59f140609a3fa514d5c04a15c9f0daa07", kill_on_drop: false }`
[INFO] [stdout] e62259faf4b029d51cc6a97e04b214d59f140609a3fa514d5c04a15c9f0daa07
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+5ad98b4026d5172f27615b105658bc8bfd677be8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8d378eb405cf4bab851179b23de40ac49d8f5ad524984372937637131cff1986
[INFO] running `Command { std: "docker" "start" "-a" "8d378eb405cf4bab851179b23de40ac49d8f5ad524984372937637131cff1986", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.121
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]     Checking bulut v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/error.rs:13:19
[INFO] [stdout]    |
[INFO] [stdout] 13 |         match self.clone() {
[INFO] [stdout]    |                   ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `VmError` does not implement `Clone`, so calling `clone` on `&VmError` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout] 13 -         match self.clone() {
[INFO] [stdout] 13 +         match self {
[INFO] [stdout]    |
[INFO] [stdout] help: if you meant to clone `VmError`, implement `Clone` for it
[INFO] [stdout]    |
[INFO] [stdout] 4  + #[derive(Clone)]
[INFO] [stdout] 5  | pub enum VmError {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/error.rs:13:19
[INFO] [stdout]    |
[INFO] [stdout] 13 |         match self.clone() {
[INFO] [stdout]    |                   ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `VmError` does not implement `Clone`, so calling `clone` on `&VmError` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout] 13 -         match self.clone() {
[INFO] [stdout] 13 +         match self {
[INFO] [stdout]    |
[INFO] [stdout] help: if you meant to clone `VmError`, implement `Clone` for it
[INFO] [stdout]    |
[INFO] [stdout] 4  + #[derive(Clone)]
[INFO] [stdout] 5  | pub enum VmError {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.13s
[INFO] running `Command { std: "docker" "inspect" "8d378eb405cf4bab851179b23de40ac49d8f5ad524984372937637131cff1986", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d378eb405cf4bab851179b23de40ac49d8f5ad524984372937637131cff1986", kill_on_drop: false }`
[INFO] [stdout] 8d378eb405cf4bab851179b23de40ac49d8f5ad524984372937637131cff1986