[INFO] fetching crate libextra 0.1.0... [INFO] checking libextra-0.1.0 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170 [INFO] extracting crate libextra 0.1.0 into /workspace/builds/worker-5-tc2/source [INFO] started tweaking crates.io crate libextra 0.1.0 [INFO] finished tweaking crates.io crate libextra 0.1.0 [INFO] tweaked toml for crates.io crate libextra 0.1.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate libextra 0.1.0 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 3ab810c5d2b6f514e66bd6e35c0043bd6fc9bb7d0f66fd05ad58aed1485878af [INFO] running `Command { std: "docker" "start" "-a" "3ab810c5d2b6f514e66bd6e35c0043bd6fc9bb7d0f66fd05ad58aed1485878af", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3ab810c5d2b6f514e66bd6e35c0043bd6fc9bb7d0f66fd05ad58aed1485878af", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3ab810c5d2b6f514e66bd6e35c0043bd6fc9bb7d0f66fd05ad58aed1485878af", kill_on_drop: false }` [INFO] [stdout] 3ab810c5d2b6f514e66bd6e35c0043bd6fc9bb7d0f66fd05ad58aed1485878af [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0fd2550f5af363e9d23f862e5319bd68a49155a37f0eb137e6e7c37577948dbd [INFO] running `Command { std: "docker" "start" "-a" "0fd2550f5af363e9d23f862e5319bd68a49155a37f0eb137e6e7c37577948dbd", kill_on_drop: false }` [INFO] [stderr] Checking libextra v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused imports: `Enumerate` and `FilterMap` [INFO] [stdout] --> src/map.rs:3:17 [INFO] [stdout] | [INFO] [stdout] 3 | use std::iter::{Enumerate, FilterMap}; [INFO] [stdout] | ^^^^^^^^^ ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused macro definition: `iterator` [INFO] [stdout] --> src/map.rs:39:14 [INFO] [stdout] | [INFO] [stdout] 39 | macro_rules! iterator { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_macros)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Enumerate` and `FilterMap` [INFO] [stdout] --> src/map.rs:3:17 [INFO] [stdout] | [INFO] [stdout] 3 | use std::iter::{Enumerate, FilterMap}; [INFO] [stdout] | ^^^^^^^^^ ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused macro definition: `iterator` [INFO] [stdout] --> src/map.rs:39:14 [INFO] [stdout] | [INFO] [stdout] 39 | macro_rules! iterator { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_macros)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/bitv.rs:7:47 [INFO] [stdout] | [INFO] [stdout] 7 | fn iterate_bits(base: usize, bits: usize, f: &Fn(usize) -> bool) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [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] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 7 | fn iterate_bits(base: usize, bits: usize, f: &dyn Fn(usize) -> bool) -> bool { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/map.rs:36:11 [INFO] [stdout] | [INFO] [stdout] 36 | iter: Iterator> + 'a, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [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] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 36 | iter: dyn Iterator> + 'a, [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/bitv.rs:7:47 [INFO] [stdout] | [INFO] [stdout] 7 | fn iterate_bits(base: usize, bits: usize, f: &Fn(usize) -> bool) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [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] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 7 | fn iterate_bits(base: usize, bits: usize, f: &dyn Fn(usize) -> bool) -> bool { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/map.rs:36:11 [INFO] [stdout] | [INFO] [stdout] 36 | iter: Iterator> + 'a, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [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] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 36 | iter: dyn Iterator> + 'a, [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/vec.rs:5:24 [INFO] [stdout] | [INFO] [stdout] 5 | fn count(&self,f: &Fn(&T) -> bool) -> usize; [INFO] [stdout] | ^^^^^^^^^^^^^^ [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] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 5 | fn count(&self,f: &dyn Fn(&T) -> bool) -> usize; [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/vec.rs:17:24 [INFO] [stdout] | [INFO] [stdout] 17 | fn count(&self,f: &Fn(&T) -> bool) -> usize { [INFO] [stdout] | ^^^^^^^^^^^^^^ [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] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 17 | fn count(&self,f: &dyn Fn(&T) -> bool) -> usize { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/bitv.rs:44:63 [INFO] [stdout] | [INFO] [stdout] 44 | pub fn process(&mut self, b: &BigBitv, nbits: usize, op: &Fn(usize, usize) -> usize) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [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] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 44 | pub fn process(&mut self, b: &BigBitv, nbits: usize, op: &dyn Fn(usize, usize) -> usize) -> bool { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/bitv.rs:216:53 [INFO] [stdout] | [INFO] [stdout] 216 | pub fn other_op(&mut self, other: &BitvSet, f: &Fn(usize, usize) -> usize) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [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] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 216 | pub fn other_op(&mut self, other: &BitvSet, f: &dyn Fn(usize, usize) -> usize) { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/vec.rs:5:24 [INFO] [stdout] | [INFO] [stdout] 5 | fn count(&self,f: &Fn(&T) -> bool) -> usize; [INFO] [stdout] | ^^^^^^^^^^^^^^ [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] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 5 | fn count(&self,f: &dyn Fn(&T) -> bool) -> usize; [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/vec.rs:17:24 [INFO] [stdout] | [INFO] [stdout] 17 | fn count(&self,f: &Fn(&T) -> bool) -> usize { [INFO] [stdout] | ^^^^^^^^^^^^^^ [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] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 17 | fn count(&self,f: &dyn Fn(&T) -> bool) -> usize { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/bitv.rs:44:63 [INFO] [stdout] | [INFO] [stdout] 44 | pub fn process(&mut self, b: &BigBitv, nbits: usize, op: &Fn(usize, usize) -> usize) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [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] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 44 | pub fn process(&mut self, b: &BigBitv, nbits: usize, op: &dyn Fn(usize, usize) -> usize) -> bool { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/bitv.rs:216:53 [INFO] [stdout] | [INFO] [stdout] 216 | pub fn other_op(&mut self, other: &BitvSet, f: &Fn(usize, usize) -> usize) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [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] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 216 | pub fn other_op(&mut self, other: &BitvSet, f: &dyn Fn(usize, usize) -> usize) { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `other` [INFO] [stdout] --> src/bitv.rs:179:30 [INFO] [stdout] | [INFO] [stdout] 179 | pub fn difference(&self, other: &BitvSet, f: &fn(&usize) -> bool) -> bool { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_other` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `f` [INFO] [stdout] --> src/bitv.rs:179:47 [INFO] [stdout] | [INFO] [stdout] 179 | pub fn difference(&self, other: &BitvSet, f: &fn(&usize) -> bool) -> bool { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `other` [INFO] [stdout] --> src/bitv.rs:179:30 [INFO] [stdout] | [INFO] [stdout] 179 | pub fn difference(&self, other: &BitvSet, f: &fn(&usize) -> bool) -> bool { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_other` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `f` [INFO] [stdout] --> src/bitv.rs:179:47 [INFO] [stdout] | [INFO] [stdout] 179 | pub fn difference(&self, other: &BitvSet, f: &fn(&usize) -> bool) -> bool { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `iterate_bits` is never used [INFO] [stdout] --> src/bitv.rs:7:4 [INFO] [stdout] | [INFO] [stdout] 7 | fn iterate_bits(base: usize, bits: usize, f: &Fn(usize) -> bool) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Op` is never used [INFO] [stdout] --> src/bitv.rs:121:6 [INFO] [stdout] | [INFO] [stdout] 121 | enum Op { [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `front`, `back`, and `iter` are never read [INFO] [stdout] --> src/map.rs:34:5 [INFO] [stdout] | [INFO] [stdout] 33 | pub struct SmallIntMapIterator<'a,T> { [INFO] [stdout] | ------------------- fields in this struct [INFO] [stdout] 34 | front: usize, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 35 | back: usize, [INFO] [stdout] | ^^^^ [INFO] [stdout] 36 | iter: Iterator> + 'a, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/bitv.rs:205:22 [INFO] [stdout] | [INFO] [stdout] 205 | pub fn iter<'a>(&'a self) -> BitvSetIterator { [INFO] [stdout] | ^^ --------------- the lifetime gets resolved as `'a` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to consistently use `'a` [INFO] [stdout] | [INFO] [stdout] 205 | pub fn iter<'a>(&'a self) -> BitvSetIterator<'a> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `iterate_bits` is never used [INFO] [stdout] --> src/bitv.rs:7:4 [INFO] [stdout] | [INFO] [stdout] 7 | fn iterate_bits(base: usize, bits: usize, f: &Fn(usize) -> bool) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Op` is never used [INFO] [stdout] --> src/bitv.rs:121:6 [INFO] [stdout] | [INFO] [stdout] 121 | enum Op { [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `front`, `back`, and `iter` are never read [INFO] [stdout] --> src/map.rs:34:5 [INFO] [stdout] | [INFO] [stdout] 33 | pub struct SmallIntMapIterator<'a,T> { [INFO] [stdout] | ------------------- fields in this struct [INFO] [stdout] 34 | front: usize, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 35 | back: usize, [INFO] [stdout] | ^^^^ [INFO] [stdout] 36 | iter: Iterator> + 'a, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/bitv.rs:205:22 [INFO] [stdout] | [INFO] [stdout] 205 | pub fn iter<'a>(&'a self) -> BitvSetIterator { [INFO] [stdout] | ^^ --------------- the lifetime gets resolved as `'a` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to consistently use `'a` [INFO] [stdout] | [INFO] [stdout] 205 | pub fn iter<'a>(&'a self) -> BitvSetIterator<'a> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.29s [INFO] running `Command { std: "docker" "inspect" "0fd2550f5af363e9d23f862e5319bd68a49155a37f0eb137e6e7c37577948dbd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0fd2550f5af363e9d23f862e5319bd68a49155a37f0eb137e6e7c37577948dbd", kill_on_drop: false }` [INFO] [stdout] 0fd2550f5af363e9d23f862e5319bd68a49155a37f0eb137e6e7c37577948dbd