[INFO] fetching crate climeta 0.1.0...
[INFO] checking climeta-0.1.0 against master#e59540968e0c6fc3c37d92a639b83fc8fcee5e81 for pr-114559
[INFO] extracting crate climeta 0.1.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate climeta 0.1.0 on toolchain e59540968e0c6fc3c37d92a639b83fc8fcee5e81
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e59540968e0c6fc3c37d92a639b83fc8fcee5e81" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate climeta 0.1.0
[INFO] finished tweaking crates.io crate climeta 0.1.0
[INFO] tweaked toml for crates.io crate climeta 0.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e59540968e0c6fc3c37d92a639b83fc8fcee5e81" "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" "+e59540968e0c6fc3c37d92a639b83fc8fcee5e81" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-derive v0.2.5
[INFO] [stderr]   Downloaded elsa v1.8.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:5c16f4e6c37141f9fef0bc86f7a492d732943053e42aab8461035881e3f53823" "/opt/rustwide/cargo-home/bin/cargo" "+e59540968e0c6fc3c37d92a639b83fc8fcee5e81" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] afbf2d702886a8aa699d5a8c47ee80d31cba9c5f1841a1b9554c57850576b266
[INFO] running `Command { std: "docker" "start" "-a" "afbf2d702886a8aa699d5a8c47ee80d31cba9c5f1841a1b9554c57850576b266", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "afbf2d702886a8aa699d5a8c47ee80d31cba9c5f1841a1b9554c57850576b266", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afbf2d702886a8aa699d5a8c47ee80d31cba9c5f1841a1b9554c57850576b266", kill_on_drop: false }`
[INFO] [stdout] afbf2d702886a8aa699d5a8c47ee80d31cba9c5f1841a1b9554c57850576b266
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:5c16f4e6c37141f9fef0bc86f7a492d732943053e42aab8461035881e3f53823" "/opt/rustwide/cargo-home/bin/cargo" "+e59540968e0c6fc3c37d92a639b83fc8fcee5e81" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5c1ad9d306b80516ce700487379fbd5d96fb4394ca3464abfee6c9617a811ebe
[INFO] running `Command { std: "docker" "start" "-a" "5c1ad9d306b80516ce700487379fbd5d96fb4394ca3464abfee6c9617a811ebe", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking elsa v1.8.1
[INFO] [stderr]     Checking owning_ref v0.4.1
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking climeta v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/core/db.rs:214:5
[INFO] [stdout]     |
[INFO] [stdout] 214 |     (8 + name.len() + padding)
[INFO] [stdout]     |     ^                        ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 214 -     (8 + name.len() + padding)
[INFO] [stdout] 214 +     8 + name.len() + padding
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/core/db.rs:214:5
[INFO] [stdout]     |
[INFO] [stdout] 214 |     (8 + name.len() + padding)
[INFO] [stdout]     |     ^                        ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 214 -     (8 + name.len() + padding)
[INFO] [stdout] 214 +     8 + name.len() + padding
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `m_guids` is never read
[INFO] [stdout]    --> src/core/db.rs:143:5
[INFO] [stdout]     |
[INFO] [stdout] 140 | pub(crate) struct Database<'db> {
[INFO] [stdout]     |                   -------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 143 |     m_guids: &'db [u8],
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&[u8]` instead of cloning the inner type
[INFO] [stdout]    --> src/schema/signatures.rs:388:32
[INFO] [stdout]     |
[INFO] [stdout] 388 |         let mut cur_clone = cur.clone(); // maybe we need to rewind
[INFO] [stdout]     |                                ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&[u8]` instead of cloning the inner type
[INFO] [stdout]    --> src/schema/signatures.rs:444:32
[INFO] [stdout]     |
[INFO] [stdout] 444 |         let mut cur_clone = cur.clone(); // maybe we need to rewind
[INFO] [stdout]     |                                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&[u8]` instead of cloning the inner type
[INFO] [stdout]    --> src/schema/signatures.rs:487:36
[INFO] [stdout]     |
[INFO] [stdout] 487 |             let mut cur_clone = cur.clone();
[INFO] [stdout]     |                                    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `m_guids` is never read
[INFO] [stdout]    --> src/core/db.rs:143:5
[INFO] [stdout]     |
[INFO] [stdout] 140 | pub(crate) struct Database<'db> {
[INFO] [stdout]     |                   -------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 143 |     m_guids: &'db [u8],
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&[u8]` instead of cloning the inner type
[INFO] [stdout]    --> src/schema/signatures.rs:388:32
[INFO] [stdout]     |
[INFO] [stdout] 388 |         let mut cur_clone = cur.clone(); // maybe we need to rewind
[INFO] [stdout]     |                                ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&[u8]` instead of cloning the inner type
[INFO] [stdout]    --> src/schema/signatures.rs:444:32
[INFO] [stdout]     |
[INFO] [stdout] 444 |         let mut cur_clone = cur.clone(); // maybe we need to rewind
[INFO] [stdout]     |                                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&[u8]` instead of cloning the inner type
[INFO] [stdout]    --> src/schema/signatures.rs:487:36
[INFO] [stdout]     |
[INFO] [stdout] 487 |             let mut cur_clone = cur.clone();
[INFO] [stdout]     |                                    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> examples/winrt.rs:6:29
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn main() -> Result<(), Box<std::error::Error>> {
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn main() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]   |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.38s
[INFO] running `Command { std: "docker" "inspect" "5c1ad9d306b80516ce700487379fbd5d96fb4394ca3464abfee6c9617a811ebe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c1ad9d306b80516ce700487379fbd5d96fb4394ca3464abfee6c9617a811ebe", kill_on_drop: false }`
[INFO] [stdout] 5c1ad9d306b80516ce700487379fbd5d96fb4394ca3464abfee6c9617a811ebe
