[INFO] fetching crate tock-registers 0.7.0... [INFO] checking tock-registers-0.7.0 against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3 [INFO] extracting crate tock-registers 0.7.0 into /workspace/builds/worker-5/source [INFO] validating manifest of crates.io crate tock-registers 0.7.0 on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate tock-registers 0.7.0 [INFO] finished tweaking crates.io crate tock-registers 0.7.0 [INFO] tweaked toml for crates.io crate tock-registers 0.7.0 written to /workspace/builds/worker-5/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0b778fa667cfb177dd27dd4f793c4308c9cbd9c5e5f4bfac02d68056fcd772c0 [INFO] running `Command { std: "docker" "start" "-a" "0b778fa667cfb177dd27dd4f793c4308c9cbd9c5e5f4bfac02d68056fcd772c0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0b778fa667cfb177dd27dd4f793c4308c9cbd9c5e5f4bfac02d68056fcd772c0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0b778fa667cfb177dd27dd4f793c4308c9cbd9c5e5f4bfac02d68056fcd772c0", kill_on_drop: false }` [INFO] [stdout] 0b778fa667cfb177dd27dd4f793c4308c9cbd9c5e5f4bfac02d68056fcd772c0 [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=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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 22658650a28d70ca89329bfba1a488fab880999e4ed4e0b904a3cdfe99bc7d25 [INFO] running `Command { std: "docker" "start" "-a" "22658650a28d70ca89329bfba1a488fab880999e4ed4e0b904a3cdfe99bc7d25", kill_on_drop: false }` [INFO] [stderr] Copying to /tmp/fixit [INFO] [stderr] Running `cargo fix --edition` [INFO] [stderr] Checking tock-registers v0.7.0 (/tmp/fixit) [INFO] [stderr] Migrating src/lib.rs from 2018 edition to 2021 [INFO] [stderr] Fixed src/fields.rs (1 fix) [INFO] [stderr] warning: failed to automatically apply fixes suggested by rustc to crate `tock_registers` [INFO] [stderr] [INFO] [stderr] after fixes were automatically applied the compiler reported errors within these files: [INFO] [stderr] [INFO] [stderr] * src/fields.rs [INFO] [stderr] [INFO] [stderr] This likely indicates a bug in either rustc or cargo itself, [INFO] [stderr] and we would appreciate a bug report! You're likely to see [INFO] [stderr] a number of compiler warnings after this message which cargo [INFO] [stderr] attempted to fix but failed. If you could open an issue at [INFO] [stderr] https://github.com/rust-lang/rust/issues [INFO] [stderr] quoting the full output of this command we'd be very appreciative! [INFO] [stderr] Note that you may be able to make some more progress in the near-term [INFO] [stderr] fixing code with the `--broken-code` flag [INFO] [stderr] [INFO] [stderr] The following errors were reported: [INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type `TryFromValue` [INFO] [stderr] --> src/fields.rs:474:22 [INFO] [stderr] | [INFO] [stderr] 474 | >::try_from(v as u32) [INFO] [stderr] | ^^^^^^^^^^^^ use of undeclared type `TryFromValue` [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0433`. [INFO] [stderr] Original diagnostics will follow. [INFO] [stderr] [INFO] [stdout] warning: trait-associated function `try_from` will become ambiguous in Rust 2021 [INFO] [stdout] --> src/fields.rs:474:13 [INFO] [stdout] | [INFO] [stdout] 474 | Self::try_from(v as u32) [INFO] [stdout] | ^^^^^^^^^^^^^^ help: disambiguate the associated function: `>::try_from` [INFO] [stdout] | [INFO] [stdout] = note: `--force-warn rust-2021-prelude-collisions` implied by `--force-warn rust-2021-compatibility` [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait-associated function `try_from` will become ambiguous in Rust 2021 [INFO] [stdout] --> src/fields.rs:559:64 [INFO] [stdout] | [INFO] [stdout] 559 | assert_eq!(field.read_as_enum(x << shift), Foo::try_from(x)); [INFO] [stdout] | ^^^^^^^^^^^^^ help: disambiguate the associated function: `>::try_from` [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.04s [INFO] [stderr] Running `cargo check` to verify 2021 [INFO] [stderr] Checking tock-registers v0.7.0 (/tmp/fixit) [INFO] [stdout] error[E0034]: multiple applicable items in scope [INFO] [stdout] --> src/fields.rs:474:19 [INFO] [stdout] | [INFO] [stdout] 474 | Self::try_from(v as u32) [INFO] [stdout] | ^^^^^^^^ multiple `try_from` found [INFO] [stdout] | [INFO] [stdout] = note: candidate #1 is defined in an impl of the trait `TryFrom` for the type `T` [INFO] [stdout] note: candidate #2 is defined in the trait `TryFromValue` [INFO] [stdout] --> src/fields.rs:255:5 [INFO] [stdout] | [INFO] [stdout] 255 | fn try_from(v: V) -> Option; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] help: disambiguate the associated function for candidate #1 [INFO] [stdout] | [INFO] [stdout] 474 | TryFrom::try_from(v as u32) [INFO] [stdout] | ~~~~~~~~~ [INFO] [stdout] help: disambiguate the associated function for candidate #2 [INFO] [stdout] | [INFO] [stdout] 474 | TryFromValue::try_from(v as u32) [INFO] [stdout] | ~~~~~~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0034]: multiple applicable items in scope [INFO] [stdout] --> src/fields.rs:559:69 [INFO] [stdout] | [INFO] [stdout] 559 | assert_eq!(field.read_as_enum(x << shift), Foo::try_from(x)); [INFO] [stdout] | ^^^^^^^^ multiple `try_from` found [INFO] [stdout] | [INFO] [stdout] = note: candidate #1 is defined in an impl of the trait `TryFrom` for the type `T` [INFO] [stdout] note: candidate #2 is defined in the trait `TryFromValue` [INFO] [stdout] --> src/fields.rs:255:5 [INFO] [stdout] | [INFO] [stdout] 255 | fn try_from(v: V) -> Option; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] help: disambiguate the associated function for candidate #1 [INFO] [stdout] | [INFO] [stdout] 559 | assert_eq!(field.read_as_enum(x << shift), TryFrom::try_from(x)); [INFO] [stdout] | ~~~~~~~~~ [INFO] [stdout] help: disambiguate the associated function for candidate #2 [INFO] [stdout] | [INFO] [stdout] 559 | assert_eq!(field.read_as_enum(x << shift), TryFromValue::try_from(x)); [INFO] [stdout] | ~~~~~~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `TryFromValue` [INFO] [stdout] --> src/fields.rs:497:36 [INFO] [stdout] | [INFO] [stdout] 497 | use crate::fields::{Field, TryFromValue}; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0034`. [INFO] [stdout] [INFO] [stderr] error: could not compile `tock-registers` due to 3 previous errors; 1 warning emitted [INFO] [stderr] error: failed to check after updating to 2021 [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `cargo check --frozen --all --all-targets --message-format=json` (exit status: 101) [INFO] running `Command { std: "docker" "inspect" "22658650a28d70ca89329bfba1a488fab880999e4ed4e0b904a3cdfe99bc7d25", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "22658650a28d70ca89329bfba1a488fab880999e4ed4e0b904a3cdfe99bc7d25", kill_on_drop: false }` [INFO] [stdout] 22658650a28d70ca89329bfba1a488fab880999e4ed4e0b904a3cdfe99bc7d25