[INFO] fetching crate duplicate 1.0.0... [INFO] checking duplicate-1.0.0 against master#35936c4839dd272646394779d151e060d0f6b3ac for pr-122960-1 [INFO] extracting crate duplicate 1.0.0 into /workspace/builds/worker-2-tc1/source [INFO] validating manifest of crates.io crate duplicate 1.0.0 on toolchain 35936c4839dd272646394779d151e060d0f6b3ac [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+35936c4839dd272646394779d151e060d0f6b3ac" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate duplicate 1.0.0 [INFO] finished tweaking crates.io crate duplicate 1.0.0 [INFO] tweaked toml for crates.io crate duplicate 1.0.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+35936c4839dd272646394779d151e060d0f6b3ac" "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" "+35936c4839dd272646394779d151e060d0f6b3ac" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded duplicate_macrotest v1.0.3 [INFO] [stderr] Downloaded toml v0.5.9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+35936c4839dd272646394779d151e060d0f6b3ac" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d4e7cef63b32ca2578bd12f4c02b5b2deda89f7dfb8de619e83d286e66581585 [INFO] running `Command { std: "docker" "start" "-a" "d4e7cef63b32ca2578bd12f4c02b5b2deda89f7dfb8de619e83d286e66581585", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d4e7cef63b32ca2578bd12f4c02b5b2deda89f7dfb8de619e83d286e66581585", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d4e7cef63b32ca2578bd12f4c02b5b2deda89f7dfb8de619e83d286e66581585", kill_on_drop: false }` [INFO] [stdout] d4e7cef63b32ca2578bd12f4c02b5b2deda89f7dfb8de619e83d286e66581585 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+35936c4839dd272646394779d151e060d0f6b3ac" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 654f982f552175758d9b45ad35fd6501eb9454748b4c393ef1ac594bbd98480f [INFO] running `Command { std: "docker" "start" "-a" "654f982f552175758d9b45ad35fd6501eb9454748b4c393ef1ac594bbd98480f", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.79 [INFO] [stderr] Compiling libc v0.2.153 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling getrandom v0.1.16 [INFO] [stderr] Checking unicode-ident v1.0.12 [INFO] [stderr] Compiling serde v1.0.197 [INFO] [stderr] Checking memchr v2.7.2 [INFO] [stderr] Compiling rustversion v1.0.14 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling doc-comment v0.3.3 [INFO] [stderr] Checking diff v0.1.13 [INFO] [stderr] Checking glob v0.3.1 [INFO] [stderr] Checking heck v0.4.1 [INFO] [stderr] Checking aho-corasick v1.1.3 [INFO] [stderr] Compiling quote v1.0.35 [INFO] [stderr] Compiling syn v2.0.55 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking regex-automata v0.4.6 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking duplicate v1.0.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused return value of `std::result::Result::::map_or` that must be used [INFO] [stdout] --> src/module_disambiguation.rs:62:3 [INFO] [stdout] | [INFO] [stdout] 62 | / item_iter [INFO] [stdout] 63 | | .extract_simple(|t| is_ident(t, Some("mod")), |t| t, None) [INFO] [stdout] 64 | | .map_or((), |mod_keyword| { [INFO] [stdout] 65 | | result.extend(Some(mod_keyword).into_iter()); [INFO] [stdout] ... | [INFO] [stdout] 79 | | result.extend(Some(TokenTree::Ident(replacement)).into_iter()); [INFO] [stdout] 80 | | }); [INFO] [stdout] | |______________^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the returned value, use `if let` instead [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 62 | let _ = item_iter [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `Option::::map_or` that must be used [INFO] [stdout] --> src/token_iter.rs:456:3 [INFO] [stdout] | [INFO] [stdout] 456 | new_front.map_or((), |t| self.unconsumed.push_front(t)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the returned value, use `if let` instead [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 456 | let _ = new_front.map_or((), |t| self.unconsumed.push_front(t)); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking rand v0.7.3 [INFO] [stdout] warning: unused return value of `std::result::Result::::map_or` that must be used [INFO] [stdout] --> src/module_disambiguation.rs:62:3 [INFO] [stdout] | [INFO] [stdout] 62 | / item_iter [INFO] [stdout] 63 | | .extract_simple(|t| is_ident(t, Some("mod")), |t| t, None) [INFO] [stdout] 64 | | .map_or((), |mod_keyword| { [INFO] [stdout] 65 | | result.extend(Some(mod_keyword).into_iter()); [INFO] [stdout] ... | [INFO] [stdout] 79 | | result.extend(Some(TokenTree::Ident(replacement)).into_iter()); [INFO] [stdout] 80 | | }); [INFO] [stdout] | |______________^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the returned value, use `if let` instead [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 62 | let _ = item_iter [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `Option::::map_or` that must be used [INFO] [stdout] --> src/token_iter.rs:456:3 [INFO] [stdout] | [INFO] [stdout] 456 | new_front.map_or((), |t| self.unconsumed.push_front(t)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the returned value, use `if let` instead [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 456 | let _ = new_front.map_or((), |t| self.unconsumed.push_front(t)); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling serde_derive v1.0.197 [INFO] [stderr] Checking regex v1.10.4 [INFO] [stderr] Checking serde_json v1.0.115 [INFO] [stderr] Checking toml v0.5.9 [INFO] [stderr] Checking duplicate_macrotest v1.0.3 [INFO] [stdout] warning: unused return value of `std::result::Result::::map_or` that must be used [INFO] [stdout] --> src/module_disambiguation.rs:62:3 [INFO] [stdout] | [INFO] [stdout] 62 | / item_iter [INFO] [stdout] 63 | | .extract_simple(|t| is_ident(t, Some("mod")), |t| t, None) [INFO] [stdout] 64 | | .map_or((), |mod_keyword| { [INFO] [stdout] 65 | | result.extend(Some(mod_keyword).into_iter()); [INFO] [stdout] ... | [INFO] [stdout] 79 | | result.extend(Some(TokenTree::Ident(replacement)).into_iter()); [INFO] [stdout] 80 | | }); [INFO] [stdout] | |______________^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the returned value, use `if let` instead [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 62 | let _ = item_iter [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `Option::::map_or` that must be used [INFO] [stdout] --> src/token_iter.rs:456:3 [INFO] [stdout] | [INFO] [stdout] 456 | new_front.map_or((), |t| self.unconsumed.push_front(t)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the returned value, use `if let` instead [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 456 | let _ = new_front.map_or((), |t| self.unconsumed.push_front(t)); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.85s [INFO] running `Command { std: "docker" "inspect" "654f982f552175758d9b45ad35fd6501eb9454748b4c393ef1ac594bbd98480f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "654f982f552175758d9b45ad35fd6501eb9454748b4c393ef1ac594bbd98480f", kill_on_drop: false }` [INFO] [stdout] 654f982f552175758d9b45ad35fd6501eb9454748b4c393ef1ac594bbd98480f