[INFO] fetching crate pvt 0.1.0...
[INFO] testing pvt-0.1.0 against 1.75.0 for beta-1.76-1
[INFO] extracting crate pvt 0.1.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate pvt 0.1.0 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pvt 0.1.0
[INFO] finished tweaking crates.io crate pvt 0.1.0
[INFO] tweaked toml for crates.io crate pvt 0.1.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded projective v0.3.0
[INFO] [stderr]   Downloaded shape-core v0.1.17
[INFO] [stderr]   Downloaded distantia v0.0.0
[INFO] [stderr]   Downloaded color-core v0.1.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 89e5438e958340918efe09a6db1bb7d5bbca8a012c985e90be5321de268f53c6
[INFO] running `Command { std: "docker" "start" "-a" "89e5438e958340918efe09a6db1bb7d5bbca8a012c985e90be5321de268f53c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "89e5438e958340918efe09a6db1bb7d5bbca8a012c985e90be5321de268f53c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89e5438e958340918efe09a6db1bb7d5bbca8a012c985e90be5321de268f53c6", kill_on_drop: false }`
[INFO] [stdout] 89e5438e958340918efe09a6db1bb7d5bbca8a012c985e90be5321de268f53c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e4329398b6eaf55dc700234fea696858d14fb9a9b6025453c9d648fda0b05152
[INFO] running `Command { std: "docker" "start" "-a" "e4329398b6eaf55dc700234fea696858d14fb9a9b6025453c9d648fda0b05152", kill_on_drop: false }`
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]    Compiling color-core v0.1.6
[INFO] [stderr]    Compiling distantia v0.0.0
[INFO] [stderr]    Compiling projective v0.3.0
[INFO] [stderr]    Compiling itertools v0.12.0
[INFO] [stderr]    Compiling shape-core v0.1.17
[INFO] [stderr]    Compiling pvt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(box_syntax)]
[INFO] [stdout]   |            ^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: replaced with `#[rustc_box]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(generators)]
[INFO] [stdout]   |            ^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: renamed to `coroutines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::iter::from_generator`
[INFO] [stdout]  --> src/tree/mod.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::iter::from_generator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^ no `from_generator` in `iter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: yield syntax is experimental
[INFO] [stdout]   --> src/tree/mod.rs:50:21
[INFO] [stdout]    |
[INFO] [stdout] 50 |                     yield area;
[INFO] [stdout]    |                     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #43122 <https://github.com/rust-lang/rust/issues/43122> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: yield syntax is experimental
[INFO] [stdout]   --> src/tree/mod.rs:59:21
[INFO] [stdout]    |
[INFO] [stdout] 59 |                     yield area;
[INFO] [stdout]    |                     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #43122 <https://github.com/rust-lang/rust/issues/43122> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(iter_from_generator)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `iter_from_generator`
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(iter_from_generator)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 7 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0554, E0557, E0635, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pvt` (lib) due to 8 previous errors
[INFO] running `Command { std: "docker" "inspect" "e4329398b6eaf55dc700234fea696858d14fb9a9b6025453c9d648fda0b05152", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4329398b6eaf55dc700234fea696858d14fb9a9b6025453c9d648fda0b05152", kill_on_drop: false }`
[INFO] [stdout] e4329398b6eaf55dc700234fea696858d14fb9a9b6025453c9d648fda0b05152
