[INFO] fetching crate geph4-vpn-helper 0.2.4...
[INFO] checking geph4-vpn-helper-0.2.4 against try#ec8d137b933d39ddf0a2878617a0335f0f9d7116 for pr-116607
[INFO] extracting crate geph4-vpn-helper 0.2.4 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate geph4-vpn-helper 0.2.4 on toolchain ec8d137b933d39ddf0a2878617a0335f0f9d7116
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec8d137b933d39ddf0a2878617a0335f0f9d7116" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4-tc2/source/.cargo/config
[INFO] started tweaking crates.io crate geph4-vpn-helper 0.2.4
[INFO] finished tweaking crates.io crate geph4-vpn-helper 0.2.4
[INFO] tweaked toml for crates.io crate geph4-vpn-helper 0.2.4 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate geph4-vpn-helper 0.2.4 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" "+ec8d137b933d39ddf0a2878617a0335f0f9d7116" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:023092b8bfa974c7f3e45c5ce651cc8dd3afd5e76915d5995b8dacd3032bf956" "/opt/rustwide/cargo-home/bin/cargo" "+ec8d137b933d39ddf0a2878617a0335f0f9d7116" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 97202ec7df26be61b9a1fb8e1401458c3e5e5e0efc6eec546f224d05b0df6dc6
[INFO] running `Command { std: "docker" "start" "-a" "97202ec7df26be61b9a1fb8e1401458c3e5e5e0efc6eec546f224d05b0df6dc6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "97202ec7df26be61b9a1fb8e1401458c3e5e5e0efc6eec546f224d05b0df6dc6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97202ec7df26be61b9a1fb8e1401458c3e5e5e0efc6eec546f224d05b0df6dc6", kill_on_drop: false }`
[INFO] [stdout] 97202ec7df26be61b9a1fb8e1401458c3e5e5e0efc6eec546f224d05b0df6dc6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:023092b8bfa974c7f3e45c5ce651cc8dd3afd5e76915d5995b8dacd3032bf956" "/opt/rustwide/cargo-home/bin/cargo" "+ec8d137b933d39ddf0a2878617a0335f0f9d7116" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b669213cab483e8fcc9b08379392fdf066494e331cee91a90a0a4ada9bfbffa4
[INFO] running `Command { std: "docker" "start" "-a" "b669213cab483e8fcc9b08379392fdf066494e331cee91a90a0a4ada9bfbffa4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.103
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling syn v1.0.80
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[INFO] [stderr]    Compiling syntex_syntax v0.42.0
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[INFO] [stderr]     Checking probability v0.17.0
[INFO] [stderr]     Checking c2-chacha v0.3.1
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[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]     Checking arraymap v0.1.1
[INFO] [stderr]    Compiling geph4-vpn-helper v0.2.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking arc-swap v1.4.0
[INFO] [stderr]     Checking nonzero_ext v0.2.0
[INFO] [stderr]     Checking arrayvec v0.7.1
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking uds v0.2.6
[INFO] [stderr]     Checking defmac v0.2.1
[INFO] [stderr]     Checking smolscale v0.3.16
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/syntex_syntax-0.42.0/src/ptr.rs:184:9
[INFO] [stdout]     |
[INFO] [stdout] 183 |     fn into_iter(self) -> Self::IntoIter {
[INFO] [stdout]     |                           -------------- expected `std::slice::Iter<'a, T>` because of return type
[INFO] [stdout] 184 |         self.ptr.into_iter()
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^ expected `Iter<'_, T>`, found `IntoIter<T>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected struct `std::slice::Iter<'a, T>`
[INFO] [stdout]                found struct `std::vec::IntoIter<T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `syntex_syntax` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "b669213cab483e8fcc9b08379392fdf066494e331cee91a90a0a4ada9bfbffa4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b669213cab483e8fcc9b08379392fdf066494e331cee91a90a0a4ada9bfbffa4", kill_on_drop: false }`
[INFO] [stdout] b669213cab483e8fcc9b08379392fdf066494e331cee91a90a0a4ada9bfbffa4