[INFO] fetching crate doubter-impl 0.1.0... [INFO] checking doubter-impl-0.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] extracting crate doubter-impl 0.1.0 into /workspace/builds/worker-6-tc1/source [INFO] validating manifest of crates.io crate doubter-impl 0.1.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate doubter-impl 0.1.0 [INFO] finished tweaking crates.io crate doubter-impl 0.1.0 [INFO] tweaked toml for crates.io crate doubter-impl 0.1.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 9 packages [INFO] [stderr] Adding bitflags v0.9.1 (latest: v2.5.0) [INFO] [stderr] Adding bytecount v0.3.2 (latest: v0.6.7) [INFO] [stderr] Adding glob v0.2.11 (latest: v0.3.1) [INFO] [stderr] Adding proc-macro2 v0.4.30 (latest: v1.0.79) [INFO] [stderr] Adding pulldown-cmark v0.1.2 (latest: v0.10.2) [INFO] [stderr] Adding quote v0.6.13 (latest: v1.0.35) [INFO] [stderr] Adding syn v0.15.44 (latest: v2.0.58) [INFO] [stderr] Adding unicode-xid v0.1.0 (latest: v0.2.4) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded glob v0.2.11 [INFO] [stderr] Downloaded bytecount v0.3.2 [INFO] [stderr] Downloaded pulldown-cmark v0.1.2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 32dc83a3917d27b74aed36017780ef6d5b0594b725951dbe74db106cf157b8cc [INFO] running `Command { std: "docker" "start" "-a" "32dc83a3917d27b74aed36017780ef6d5b0594b725951dbe74db106cf157b8cc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "32dc83a3917d27b74aed36017780ef6d5b0594b725951dbe74db106cf157b8cc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "32dc83a3917d27b74aed36017780ef6d5b0594b725951dbe74db106cf157b8cc", kill_on_drop: false }` [INFO] [stdout] 32dc83a3917d27b74aed36017780ef6d5b0594b725951dbe74db106cf157b8cc [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2772ae9d66e44b0235a80234ab3e23cfbec2dd80c0d9b02ae98836d64df96928 [INFO] running `Command { std: "docker" "start" "-a" "2772ae9d66e44b0235a80234ab3e23cfbec2dd80c0d9b02ae98836d64df96928", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Checking unicode-xid v0.1.0 [INFO] [stderr] Compiling pulldown-cmark v0.1.2 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Checking bitflags v0.9.1 [INFO] [stderr] Checking bytecount v0.3.2 [INFO] [stderr] Checking glob v0.2.11 [INFO] [stderr] Checking quote v0.6.13 [INFO] [stderr] Checking doubter-impl v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `syn` is imported redundantly [INFO] [stdout] --> src/config.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use syn; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] ::: src/lib.rs:9:1 [INFO] [stdout] | [INFO] [stdout] 9 | extern crate syn; [INFO] [stdout] | ----------------- the item `syn` is already imported here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `bytecount` is imported redundantly [INFO] [stdout] --> src/extract.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use bytecount; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] ::: src/lib.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | extern crate bytecount; [INFO] [stdout] | ----------------------- the item `bytecount` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `glob` is imported redundantly [INFO] [stdout] --> src/tree.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use glob; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] ::: src/lib.rs:2:1 [INFO] [stdout] | [INFO] [stdout] 2 | extern crate glob; [INFO] [stdout] | ------------------ the item `glob` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary braces around function argument [INFO] [stdout] --> src/util.rs:21:31 [INFO] [stdout] | [INFO] [stdout] 21 | String::with_capacity({ file.metadata().map(|m| m.len() as usize + 1).unwrap_or(0) }); [INFO] [stdout] | ^^ ^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_braces)]` on by default [INFO] [stdout] help: remove these braces [INFO] [stdout] | [INFO] [stdout] 21 - String::with_capacity({ file.metadata().map(|m| m.len() as usize + 1).unwrap_or(0) }); [INFO] [stdout] 21 + String::with_capacity(file.metadata().map(|m| m.len() as usize + 1).unwrap_or(0)); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `syn` is imported redundantly [INFO] [stdout] --> src/lib.rs:24:9 [INFO] [stdout] | [INFO] [stdout] 9 | extern crate syn; [INFO] [stdout] | ----------------- the item `syn` is already imported here [INFO] [stdout] ... [INFO] [stdout] 24 | use syn; [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `syn` is imported redundantly [INFO] [stdout] --> src/config.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use syn; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] ::: src/lib.rs:9:1 [INFO] [stdout] | [INFO] [stdout] 9 | extern crate syn; [INFO] [stdout] | ----------------- the item `syn` is already imported here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `bytecount` is imported redundantly [INFO] [stdout] --> src/extract.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use bytecount; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] ::: src/lib.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | extern crate bytecount; [INFO] [stdout] | ----------------------- the item `bytecount` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `glob` is imported redundantly [INFO] [stdout] --> src/tree.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use glob; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] ::: src/lib.rs:2:1 [INFO] [stdout] | [INFO] [stdout] 2 | extern crate glob; [INFO] [stdout] | ------------------ the item `glob` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary braces around function argument [INFO] [stdout] --> src/util.rs:21:31 [INFO] [stdout] | [INFO] [stdout] 21 | String::with_capacity({ file.metadata().map(|m| m.len() as usize + 1).unwrap_or(0) }); [INFO] [stdout] | ^^ ^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_braces)]` on by default [INFO] [stdout] help: remove these braces [INFO] [stdout] | [INFO] [stdout] 21 - String::with_capacity({ file.metadata().map(|m| m.len() as usize + 1).unwrap_or(0) }); [INFO] [stdout] 21 + String::with_capacity(file.metadata().map(|m| m.len() as usize + 1).unwrap_or(0)); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `syn` is imported redundantly [INFO] [stdout] --> src/lib.rs:24:9 [INFO] [stdout] | [INFO] [stdout] 9 | extern crate syn; [INFO] [stdout] | ----------------- the item `syn` is already imported here [INFO] [stdout] ... [INFO] [stdout] 24 | use syn; [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/util.rs:9:17 [INFO] [stdout] | [INFO] [stdout] 9 | E: Into>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [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 [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 9 | E: Into>, [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/util.rs:9:17 [INFO] [stdout] | [INFO] [stdout] 9 | E: Into>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [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 [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 9 | E: Into>, [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `eq` is never read [INFO] [stdout] --> src/config.rs:94:5 [INFO] [stdout] | [INFO] [stdout] 92 | struct Field { [INFO] [stdout] | ----- field in this struct [INFO] [stdout] 93 | ident: Ident, [INFO] [stdout] 94 | eq: Token![=], [INFO] [stdout] | ^^ [INFO] [stdout] | [INFO] [stdout] = note: `Field` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `root_dir` is never read [INFO] [stdout] --> src/render.rs:19:5 [INFO] [stdout] | [INFO] [stdout] 17 | pub struct RenderContext { [INFO] [stdout] | ------------- field in this struct [INFO] [stdout] 18 | config: Config, [INFO] [stdout] 19 | root_dir: PathBuf, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `RenderContext` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `eq` is never read [INFO] [stdout] --> src/config.rs:94:5 [INFO] [stdout] | [INFO] [stdout] 92 | struct Field { [INFO] [stdout] | ----- field in this struct [INFO] [stdout] 93 | ident: Ident, [INFO] [stdout] 94 | eq: Token![=], [INFO] [stdout] | ^^ [INFO] [stdout] | [INFO] [stdout] = note: `Field` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `root_dir` is never read [INFO] [stdout] --> src/render.rs:19:5 [INFO] [stdout] | [INFO] [stdout] 17 | pub struct RenderContext { [INFO] [stdout] | ------------- field in this struct [INFO] [stdout] 18 | config: Config, [INFO] [stdout] 19 | root_dir: PathBuf, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `RenderContext` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.34s [INFO] running `Command { std: "docker" "inspect" "2772ae9d66e44b0235a80234ab3e23cfbec2dd80c0d9b02ae98836d64df96928", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2772ae9d66e44b0235a80234ab3e23cfbec2dd80c0d9b02ae98836d64df96928", kill_on_drop: false }` [INFO] [stdout] 2772ae9d66e44b0235a80234ab3e23cfbec2dd80c0d9b02ae98836d64df96928