[INFO] fetching crate lemon-mint 0.1.4... [INFO] checking lemon-mint-0.1.4 against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1 [INFO] extracting crate lemon-mint 0.1.4 into /workspace/builds/worker-7-tc2/source [INFO] started tweaking crates.io crate lemon-mint 0.1.4 [INFO] finished tweaking crates.io crate lemon-mint 0.1.4 [INFO] tweaked toml for crates.io crate lemon-mint 0.1.4 written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate lemon-mint 0.1.4 on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d403ff032f2659a6da3d7009158ac469ba9d609df33b4b746f6151b8d1274490 [INFO] running `Command { std: "docker" "start" "-a" "d403ff032f2659a6da3d7009158ac469ba9d609df33b4b746f6151b8d1274490", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d403ff032f2659a6da3d7009158ac469ba9d609df33b4b746f6151b8d1274490", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d403ff032f2659a6da3d7009158ac469ba9d609df33b4b746f6151b8d1274490", kill_on_drop: false }` [INFO] [stdout] d403ff032f2659a6da3d7009158ac469ba9d609df33b4b746f6151b8d1274490 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7389690585e5175d17f1a740bf7fc4ea658607c0897327e010eb57613f11e1e5 [INFO] running `Command { std: "docker" "start" "-a" "7389690585e5175d17f1a740bf7fc4ea658607c0897327e010eb57613f11e1e5", kill_on_drop: false }` [INFO] [stderr] Checking lemon-mint v0.1.4 (/opt/rustwide/workdir) [INFO] [stdout] warning: fields `with_fallback`, `n_nonterminals`, and `tables_size` are never read [INFO] [stdout] --> src/lib.rs:2831:2 [INFO] [stdout] | [INFO] [stdout] 2808 | pub struct LemonMint [INFO] [stdout] | --------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 2831 | with_fallback: bool, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 2842 | n_nonterminals: usize, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] 2843 | tables_size: usize, // Total table size of all tables in bytes [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `LemonMint` 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: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/lib.rs:683:10 [INFO] [stdout] | [INFO] [stdout] 683 | fn iter(&self) -> Take> [INFO] [stdout] | ^^^^^ --------------------- the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 683 | fn iter(&self) -> Take> [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/lib.rs:1359:7 [INFO] [stdout] | [INFO] [stdout] 1359 | mem::replace(&mut symbols.array[rhs.index].firstset, set); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 1359 | let _ = mem::replace(&mut symbols.array[rhs.index].firstset, set); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `with_fallback`, `n_nonterminals`, and `tables_size` are never read [INFO] [stdout] --> src/lib.rs:2831:2 [INFO] [stdout] | [INFO] [stdout] 2808 | pub struct LemonMint [INFO] [stdout] | --------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 2831 | with_fallback: bool, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 2842 | n_nonterminals: usize, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] 2843 | tables_size: usize, // Total table size of all tables in bytes [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `LemonMint` 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: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/lib.rs:683:10 [INFO] [stdout] | [INFO] [stdout] 683 | fn iter(&self) -> Take> [INFO] [stdout] | ^^^^^ --------------------- the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 683 | fn iter(&self) -> Take> [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/lib.rs:1359:7 [INFO] [stdout] | [INFO] [stdout] 1359 | mem::replace(&mut symbols.array[rhs.index].firstset, set); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 1359 | let _ = mem::replace(&mut symbols.array[rhs.index].firstset, set); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.78s [INFO] running `Command { std: "docker" "inspect" "7389690585e5175d17f1a740bf7fc4ea658607c0897327e010eb57613f11e1e5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7389690585e5175d17f1a740bf7fc4ea658607c0897327e010eb57613f11e1e5", kill_on_drop: false }` [INFO] [stdout] 7389690585e5175d17f1a740bf7fc4ea658607c0897327e010eb57613f11e1e5