[INFO] fetching crate diff2html 0.2.3...
[INFO] testing diff2html-0.2.3 against 1.75.0 for beta-1.76-1
[INFO] extracting crate diff2html 0.2.3 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate diff2html 0.2.3 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 diff2html 0.2.3
[INFO] finished tweaking crates.io crate diff2html 0.2.3
[INFO] tweaked toml for crates.io crate diff2html 0.2.3 written to /workspace/builds/worker-3-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 seahash v3.0.7
[INFO] [stderr]   Downloaded v_escape_derive v0.5.6
[INFO] [stderr]   Downloaded v_escape v0.7.4
[INFO] [stderr]   Downloaded handlebars v1.1.0
[INFO] [stderr]   Downloaded v_htmlescape v0.4.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 77f276c8fa7d22d965140a78592febb3af6204497503de8ca8052e3ea1bb6e08
[INFO] running `Command { std: "docker" "start" "-a" "77f276c8fa7d22d965140a78592febb3af6204497503de8ca8052e3ea1bb6e08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "77f276c8fa7d22d965140a78592febb3af6204497503de8ca8052e3ea1bb6e08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77f276c8fa7d22d965140a78592febb3af6204497503de8ca8052e3ea1bb6e08", kill_on_drop: false }`
[INFO] [stdout] 77f276c8fa7d22d965140a78592febb3af6204497503de8ca8052e3ea1bb6e08
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] ccf8fd3d8d0c89171ba5bb1720aa241fe77b375722bf1fc244027362fbff247a
[INFO] running `Command { std: "docker" "start" "-a" "ccf8fd3d8d0c89171ba5bb1720aa241fe77b375722bf1fc244027362fbff247a", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling ucd-trie v0.1.6
[INFO] [stderr]    Compiling v_htmlescape v0.4.5
[INFO] [stderr]    Compiling encoding_rs v0.8.33
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling difference v2.0.0
[INFO] [stderr]    Compiling seahash v3.0.7
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling pest v2.7.6
[INFO] [stderr]    Compiling aho-corasick v1.1.2
[INFO] [stderr]    Compiling encoding_rs_io v0.1.7
[INFO] [stderr]    Compiling regex-automata v0.4.3
[INFO] [stderr]    Compiling pest_meta v2.7.6
[INFO] [stderr]    Compiling pest_generator v2.7.6
[INFO] [stderr]    Compiling v_escape_derive v0.5.6
[INFO] [stderr]    Compiling pest_derive v2.7.6
[INFO] [stderr]    Compiling v_escape v0.7.4
[INFO] [stderr]    Compiling regex v1.10.2
[INFO] [stderr]    Compiling handlebars v1.1.0
[INFO] [stderr]    Compiling diff2html v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(pattern)]
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:64:22
[INFO] [stdout]    |
[INFO] [stdout] 64 |     let mut out: Box<Write> = if let Some(file) = &config.file {
[INFO] [stdout]    |                      ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 64 |     let mut out: Box<dyn Write> = if let Some(file) = &config.file {
[INFO] [stdout]    |                      +++
[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 `diff2html` (bin "diff2html") due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "ccf8fd3d8d0c89171ba5bb1720aa241fe77b375722bf1fc244027362fbff247a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccf8fd3d8d0c89171ba5bb1720aa241fe77b375722bf1fc244027362fbff247a", kill_on_drop: false }`
[INFO] [stdout] ccf8fd3d8d0c89171ba5bb1720aa241fe77b375722bf1fc244027362fbff247a
