[INFO] fetching crate termrect 0.1.2...
[INFO] checking termrect-0.1.2 against 1.55.0 for beta-1.56-3
[INFO] extracting crate termrect 0.1.2 into /workspace/builds/worker-33/source
[INFO] validating manifest of crates.io crate termrect 0.1.2 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 termrect 0.1.2
[INFO] finished tweaking crates.io crate termrect 0.1.2
[INFO] tweaked toml for crates.io crate termrect 0.1.2 written to /workspace/builds/worker-33/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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] 0ff9e23b0a0e44e00b456426ba2e0bcffd3593d0dbaafbd5abe5531679c5d795
[INFO] running `Command { std: "docker" "start" "-a" "0ff9e23b0a0e44e00b456426ba2e0bcffd3593d0dbaafbd5abe5531679c5d795", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ff9e23b0a0e44e00b456426ba2e0bcffd3593d0dbaafbd5abe5531679c5d795", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ff9e23b0a0e44e00b456426ba2e0bcffd3593d0dbaafbd5abe5531679c5d795", kill_on_drop: false }`
[INFO] [stdout] 0ff9e23b0a0e44e00b456426ba2e0bcffd3593d0dbaafbd5abe5531679c5d795
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6df13be9d6f188d6016aef88c2870e86fd2f86b0246ec4a010386184783a3a66
[INFO] running `Command { std: "docker" "start" "-a" "6df13be9d6f188d6016aef88c2870e86fd2f86b0246ec4a010386184783a3a66", kill_on_drop: false }`
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]     Checking termion v1.5.6
[INFO] [stderr]     Checking termrect v0.1.2 (/opt/rustwide/workdir)
[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(collections_range)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/style.rs:12:36
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn termion_color(&self) -> Box<termion::color::Color> {
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn termion::color::Color`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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(collections_range)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/style.rs:12:36
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn termion_color(&self) -> Box<termion::color::Color> {
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn termion::color::Color`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `termrect` due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "6df13be9d6f188d6016aef88c2870e86fd2f86b0246ec4a010386184783a3a66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6df13be9d6f188d6016aef88c2870e86fd2f86b0246ec4a010386184783a3a66", kill_on_drop: false }`
[INFO] [stdout] 6df13be9d6f188d6016aef88c2870e86fd2f86b0246ec4a010386184783a3a66
