[INFO] fetching crate wfbuf 0.1.1...
[INFO] testing wfbuf-0.1.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate wfbuf 0.1.1 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate wfbuf 0.1.1 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wfbuf 0.1.1
[INFO] finished tweaking crates.io crate wfbuf 0.1.1
[INFO] tweaked toml for crates.io crate wfbuf 0.1.1 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a8c1d94bf44651786f1beeadb0f7129c33790b71f0948e18b86e1cb66284cf57
[INFO] running `Command { std: "docker" "start" "-a" "a8c1d94bf44651786f1beeadb0f7129c33790b71f0948e18b86e1cb66284cf57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a8c1d94bf44651786f1beeadb0f7129c33790b71f0948e18b86e1cb66284cf57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8c1d94bf44651786f1beeadb0f7129c33790b71f0948e18b86e1cb66284cf57", kill_on_drop: false }`
[INFO] [stdout] a8c1d94bf44651786f1beeadb0f7129c33790b71f0948e18b86e1cb66284cf57
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3bfb6009691b4100f3807db348362cd0b26a70247a24c323a5c4c2a2dbfc0ead
[INFO] running `Command { std: "docker" "start" "-a" "3bfb6009691b4100f3807db348362cd0b26a70247a24c323a5c4c2a2dbfc0ead", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.1.12
[INFO] [stderr]    Compiling mmap v0.1.1
[INFO] [stderr]    Compiling wfbuf v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected expression, found keyword `in`
[INFO] [stdout]   --> src/lib.rs:89:3
[INFO] [stdout]    |
[INFO] [stdout] 89 |         in MMSHARED { WfBuf::<T>::new() }
[INFO] [stdout]    |         ^^ expected expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `std::ops::Place`, `std::ops::InPlace`, `std::ops::Placer`
[INFO] [stdout]  --> src/lib.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ops::{Place, InPlace, Placer};
[INFO] [stdout]   |                ^^^^^  ^^^^^^^  ^^^^^^ no `Placer` in `ops`
[INFO] [stdout]   |                |      |
[INFO] [stdout]   |                |      no `InPlace` in `ops`
[INFO] [stdout]   |                no `Place` in `ops`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(placement_in_syntax, placement_new_protocol, unique)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `wfbuf` due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "3bfb6009691b4100f3807db348362cd0b26a70247a24c323a5c4c2a2dbfc0ead", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bfb6009691b4100f3807db348362cd0b26a70247a24c323a5c4c2a2dbfc0ead", kill_on_drop: false }`
[INFO] [stdout] 3bfb6009691b4100f3807db348362cd0b26a70247a24c323a5c4c2a2dbfc0ead