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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjsim2010%2Fpaper" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+b4fefcd60bfd770510f7dc540e887dd3ba4fe5c1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: unused import: `log::error`
[INFO] [stdout]   --> src/io.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     log::error,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log::error`
[INFO] [stdout]   --> src/io.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     log::error,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]   --> src/app/translate.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 71 |     #[must_use]
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]   --> src/app/translate.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 71 |     #[must_use]
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `DocOp` is never used
[INFO] [stdout]   --> src/app/translate.rs:83:17
[INFO] [stdout]    |
[INFO] [stdout] 83 | pub(crate) enum DocOp {
[INFO] [stdout]    |                 ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ReadFileError` is never constructed
[INFO] [stdout]   --> src/io.rs:96:8
[INFO] [stdout]    |
[INFO] [stdout] 96 | struct ReadFileError {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Glitch` is never used
[INFO] [stdout]    --> src/io.rs:107:6
[INFO] [stdout]     |
[INFO] [stdout] 107 | enum Glitch {
[INFO] [stdout]     |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `InvalidFileStringError` is never used
[INFO] [stdout]    --> src/io.rs:143:17
[INFO] [stdout]     |
[INFO] [stdout] 143 | pub(crate) enum InvalidFileStringError {
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `tongue` is never read
[INFO] [stdout]    --> src/io.rs:260:5
[INFO] [stdout]     |
[INFO] [stdout] 254 | pub(crate) struct Interface {
[INFO] [stdout]     |                   --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 260 |     tongue: Rc<Tongue>,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Interface` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UrlError` is never constructed
[INFO] [stdout]    --> src/io.rs:353:8
[INFO] [stdout]     |
[INFO] [stdout] 353 | struct UrlError(String);
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `version` is never read
[INFO] [stdout]    --> src/io.rs:558:9
[INFO] [stdout]     |
[INFO] [stdout] 556 |     Open {
[INFO] [stdout]     |     ---- field in this variant
[INFO] [stdout] 557 |         /// The version of the document.
[INFO] [stdout] 558 |         version: i32,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `DocEdit` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DocChange` is never constructed
[INFO] [stdout]    --> src/io.rs:566:19
[INFO] [stdout]     |
[INFO] [stdout] 566 | pub(crate) struct DocChange {
[INFO] [stdout]     |                   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `modifiers` is never read
[INFO] [stdout]    --> src/io/ui.rs:196:9
[INFO] [stdout]     |
[INFO] [stdout] 192 |     Key {
[INFO] [stdout]     |     --- field in this variant
[INFO] [stdout] ...
[INFO] [stdout] 196 |         modifiers: KeyModifiers,
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `UserAction` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `DocOp` is never used
[INFO] [stdout]   --> src/app/translate.rs:83:17
[INFO] [stdout]    |
[INFO] [stdout] 83 | pub(crate) enum DocOp {
[INFO] [stdout]    |                 ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ReadFileError` is never constructed
[INFO] [stdout]   --> src/io.rs:96:8
[INFO] [stdout]    |
[INFO] [stdout] 96 | struct ReadFileError {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Glitch` is never used
[INFO] [stdout]    --> src/io.rs:107:6
[INFO] [stdout]     |
[INFO] [stdout] 107 | enum Glitch {
[INFO] [stdout]     |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `InvalidFileStringError` is never used
[INFO] [stdout]    --> src/io.rs:143:17
[INFO] [stdout]     |
[INFO] [stdout] 143 | pub(crate) enum InvalidFileStringError {
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `tongue` is never read
[INFO] [stdout]    --> src/io.rs:260:5
[INFO] [stdout]     |
[INFO] [stdout] 254 | pub(crate) struct Interface {
[INFO] [stdout]     |                   --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 260 |     tongue: Rc<Tongue>,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Interface` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UrlError` is never constructed
[INFO] [stdout]    --> src/io.rs:353:8
[INFO] [stdout]     |
[INFO] [stdout] 353 | struct UrlError(String);
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `version` is never read
[INFO] [stdout]    --> src/io.rs:558:9
[INFO] [stdout]     |
[INFO] [stdout] 556 |     Open {
[INFO] [stdout]     |     ---- field in this variant
[INFO] [stdout] 557 |         /// The version of the document.
[INFO] [stdout] 558 |         version: i32,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `DocEdit` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DocChange` is never constructed
[INFO] [stdout]    --> src/io.rs:566:19
[INFO] [stdout]     |
[INFO] [stdout] 566 | pub(crate) struct DocChange {
[INFO] [stdout]     |                   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `modifiers` is never read
[INFO] [stdout]    --> src/io/ui.rs:196:9
[INFO] [stdout]     |
[INFO] [stdout] 192 |     Key {
[INFO] [stdout]     |     --- field in this variant
[INFO] [stdout] ...
[INFO] [stdout] 196 |         modifiers: KeyModifiers,
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `UserAction` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 33s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: quick-xml v0.22.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "7bdf2bcbedcf028949ea6e33c99625b567fed55dcd3be96bcd4d4056eea5e1eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bdf2bcbedcf028949ea6e33c99625b567fed55dcd3be96bcd4d4056eea5e1eb", kill_on_drop: false }`
[INFO] [stdout] 7bdf2bcbedcf028949ea6e33c99625b567fed55dcd3be96bcd4d4056eea5e1eb
