[INFO] fetching crate maybe-owned 0.3.4... [INFO] checking maybe-owned-0.3.4 against master#35936c4839dd272646394779d151e060d0f6b3ac for pr-122960-1 [INFO] extracting crate maybe-owned 0.3.4 into /workspace/builds/worker-1-tc1/source [INFO] validating manifest of crates.io crate maybe-owned 0.3.4 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 maybe-owned 0.3.4 [INFO] finished tweaking crates.io crate maybe-owned 0.3.4 [INFO] tweaked toml for crates.io crate maybe-owned 0.3.4 written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] crate crates.io crate maybe-owned 0.3.4 already has a lockfile, it will not be regenerated [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 serde v1.0.110 [INFO] [stderr] Downloaded itoa v0.4.5 [INFO] [stderr] Downloaded proc-macro2 v1.0.13 [INFO] [stderr] Downloaded quote v1.0.6 [INFO] [stderr] Downloaded serde_derive v1.0.110 [INFO] [stderr] Downloaded syn v1.0.23 [INFO] [stderr] Downloaded ryu v1.0.4 [INFO] [stderr] Downloaded serde_json v1.0.53 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 1c4e4d007ee090f7b08eb5d44a67d9e180103112b8dd706885d368026335c803 [INFO] running `Command { std: "docker" "start" "-a" "1c4e4d007ee090f7b08eb5d44a67d9e180103112b8dd706885d368026335c803", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1c4e4d007ee090f7b08eb5d44a67d9e180103112b8dd706885d368026335c803", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1c4e4d007ee090f7b08eb5d44a67d9e180103112b8dd706885d368026335c803", kill_on_drop: false }` [INFO] [stdout] 1c4e4d007ee090f7b08eb5d44a67d9e180103112b8dd706885d368026335c803 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] f5f57e1a5cd17d023f195f9f998e684f91ebf83e8d401765c30b1ca45e5188ad [INFO] running `Command { std: "docker" "start" "-a" "f5f57e1a5cd17d023f195f9f998e684f91ebf83e8d401765c30b1ca45e5188ad", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.13 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Compiling syn v1.0.23 [INFO] [stderr] Compiling ryu v1.0.4 [INFO] [stderr] Compiling serde v1.0.110 [INFO] [stderr] Checking itoa v0.4.5 [INFO] [stderr] Checking maybe-owned v0.3.4 (/opt/rustwide/workdir) [INFO] [stderr] Compiling quote v1.0.6 [INFO] [stderr] Compiling serde_derive v1.0.110 [INFO] [stderr] Checking serde_json v1.0.53 [INFO] [stdout] warning: the item `Add` is imported redundantly [INFO] [stdout] --> src/transitive_impl.rs:155:20 [INFO] [stdout] | [INFO] [stdout] 154 | use super::*; [INFO] [stdout] | -------- the item `Add` is already imported here [INFO] [stdout] 155 | use std::ops::{Add, AddAssign, Neg, Not}; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `AddAssign` is imported redundantly [INFO] [stdout] --> src/transitive_impl.rs:155:25 [INFO] [stdout] | [INFO] [stdout] 154 | use super::*; [INFO] [stdout] | -------- the item `AddAssign` is already imported here [INFO] [stdout] 155 | use std::ops::{Add, AddAssign, Neg, Not}; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Neg` is imported redundantly [INFO] [stdout] --> src/transitive_impl.rs:155:36 [INFO] [stdout] | [INFO] [stdout] 154 | use super::*; [INFO] [stdout] | -------- the item `Neg` is already imported here [INFO] [stdout] 155 | use std::ops::{Add, AddAssign, Neg, Not}; [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Not` is imported redundantly [INFO] [stdout] --> src/transitive_impl.rs:155:41 [INFO] [stdout] | [INFO] [stdout] 154 | use super::*; [INFO] [stdout] | -------- the item `Not` is already imported here [INFO] [stdout] 155 | use std::ops::{Add, AddAssign, Neg, Not}; [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:630:17 [INFO] [stdout] | [INFO] [stdout] 630 | let _ = AsRef::::borrow(&v); [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] 630 | let _ = >::borrow(&v); [INFO] [stdout] | ++++ + [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:633:17 [INFO] [stdout] | [INFO] [stdout] 633 | let _ = AsRef::::borrow(&v); [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] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 633 | let _ = >::borrow(&v); [INFO] [stdout] | ++++ + [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:647:17 [INFO] [stdout] | [INFO] [stdout] 647 | let _ = AsMut::::borrow_mut(&mut v); [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] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 647 | let _ = >::borrow_mut(&mut v); [INFO] [stdout] | ++++ + [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/lib.rs:516:25 [INFO] [stdout] | [INFO] [stdout] 516 | struct TestType(u8); [INFO] [stdout] | -------- ^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 516 | struct TestType(()); [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/lib.rs:523:25 [INFO] [stdout] | [INFO] [stdout] 523 | struct TestType(u8); [INFO] [stdout] | -------- ^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = note: `TestType` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 523 | struct TestType(()); [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 9 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.68s [INFO] running `Command { std: "docker" "inspect" "f5f57e1a5cd17d023f195f9f998e684f91ebf83e8d401765c30b1ca45e5188ad", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f5f57e1a5cd17d023f195f9f998e684f91ebf83e8d401765c30b1ca45e5188ad", kill_on_drop: false }` [INFO] [stdout] f5f57e1a5cd17d023f195f9f998e684f91ebf83e8d401765c30b1ca45e5188ad