[INFO] fetching crate entrez-rs 0.1.4...
[INFO] testing entrez-rs-0.1.4 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate entrez-rs 0.1.4 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate entrez-rs 0.1.4
[INFO] finished tweaking crates.io crate entrez-rs 0.1.4
[INFO] tweaked toml for crates.io crate entrez-rs 0.1.4 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate entrez-rs 0.1.4 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 147 packages to latest compatible versions
[INFO] [stderr]       Adding quick-xml v0.20.0 (available: v0.38.3)
[INFO] [stderr]       Adding reqwest v0.10.10 (available: v0.12.24)
[INFO] [stderr]       Adding roxmltree v0.13.1 (available: v0.21.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7a6dacf374777652a4d97cc50e96f87ebf52f47f7d4ba44680ffd7882814e638
[INFO] running `Command { std: "docker" "start" "-a" "7a6dacf374777652a4d97cc50e96f87ebf52f47f7d4ba44680ffd7882814e638", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a6dacf374777652a4d97cc50e96f87ebf52f47f7d4ba44680ffd7882814e638", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a6dacf374777652a4d97cc50e96f87ebf52f47f7d4ba44680ffd7882814e638", kill_on_drop: false }`
[INFO] [stdout] 7a6dacf374777652a4d97cc50e96f87ebf52f47f7d4ba44680ffd7882814e638
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0dc9b58cfb99825a9859b215961a866a6a9c033dec040515ea501fffb828c4e1
[INFO] running `Command { std: "docker" "start" "-a" "0dc9b58cfb99825a9859b215961a866a6a9c033dec040515ea501fffb828c4e1", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling bytes v0.5.6
[INFO] [stderr]    Compiling pin-project-lite v0.1.12
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling unicase v2.8.1
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling httpdate v0.3.2
[INFO] [stderr]    Compiling xmlparser v0.13.6
[INFO] [stderr]    Compiling mime_guess v2.0.5
[INFO] [stderr]    Compiling tracing-futures v0.2.5
[INFO] [stderr]    Compiling roxmltree v0.13.1
[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling url v2.5.7
[INFO] [stderr]    Compiling quick-xml v0.20.0
[INFO] [stderr]    Compiling http-body v0.3.1
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.39
[INFO] [stderr]    Compiling num_cpus v1.17.0
[INFO] [stderr]    Compiling openssl-sys v0.9.111
[INFO] [stderr]    Compiling socket2 v0.3.19
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling tokio v0.2.25
[INFO] [stderr]    Compiling openssl v0.10.75
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling h2 v0.2.7
[INFO] [stderr]    Compiling native-tls v0.2.14
[INFO] [stderr]    Compiling tokio-tls v0.3.1
[INFO] [stderr]    Compiling hyper v0.13.10
[INFO] [stderr]    Compiling hyper-tls v0.4.3
[INFO] [stderr]    Compiling reqwest v0.10.10
[INFO] [stderr]    Compiling entrez-rs v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/parser/pubmed.rs:449:16
[INFO] [stdout]     |
[INFO] [stdout] 449 |                &txt.push("<");
[INFO] [stdout]     |                ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 449 |                let _ = &txt.push("<");
[INFO] [stdout]     |                +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/parser/pubmed.rs:464:20
[INFO] [stdout]     |
[INFO] [stdout] 464 |                    &txt.push(elem.tag_name().name());
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 464 |                    let _ = &txt.push(elem.tag_name().name());
[INFO] [stdout]     |                    +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/parser/pubmed.rs:466:16
[INFO] [stdout]     |
[INFO] [stdout] 466 |                &txt.push(">");
[INFO] [stdout]     |                ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 466 |                let _ = &txt.push(">");
[INFO] [stdout]     |                +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/parser/pubmed.rs:472:28
[INFO] [stdout]     |
[INFO] [stdout] 472 | ...                   &txt.push("<");
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 472 |                            let _ = &txt.push("<");
[INFO] [stdout]     |                            +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/parser/pubmed.rs:487:24
[INFO] [stdout]     |
[INFO] [stdout] 487 |                        &txt.push(c.tag_name().name());
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 487 |                        let _ = &txt.push(c.tag_name().name());
[INFO] [stdout]     |                        +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/parser/pubmed.rs:489:20
[INFO] [stdout]     |
[INFO] [stdout] 489 |                    &txt.push(">");
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 489 |                    let _ = &txt.push(">");
[INFO] [stdout]     |                    +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/parser/pubmed.rs:494:20
[INFO] [stdout]     |
[INFO] [stdout] 494 |                    &txt.push("</");
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 494 |                    let _ = &txt.push("</");
[INFO] [stdout]     |                    +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/parser/pubmed.rs:501:16
[INFO] [stdout]     |
[INFO] [stdout] 501 |                &txt.push(c.tag_name().name());
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 501 |                let _ = &txt.push(c.tag_name().name());
[INFO] [stdout]     |                +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/parser/pubmed.rs:502:16
[INFO] [stdout]     |
[INFO] [stdout] 502 |                &txt.push(">");
[INFO] [stdout]     |                ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 502 |                let _ = &txt.push(">");
[INFO] [stdout]     |                +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/parser/pubmed.rs:521:16
[INFO] [stdout]     |
[INFO] [stdout] 521 |                &txt.push("</");
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 521 |                let _ = &txt.push("</");
[INFO] [stdout]     |                +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/parser/pubmed.rs:528:16
[INFO] [stdout]     |
[INFO] [stdout] 528 |                &txt.push(elem.tag_name().name());
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 528 |                let _ = &txt.push(elem.tag_name().name());
[INFO] [stdout]     |                +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/parser/pubmed.rs:529:16
[INFO] [stdout]     |
[INFO] [stdout] 529 |                &txt.push(">");
[INFO] [stdout]     |                ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 529 |                let _ = &txt.push(">");
[INFO] [stdout]     |                +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 25.54s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: quick-xml v0.20.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "0dc9b58cfb99825a9859b215961a866a6a9c033dec040515ea501fffb828c4e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0dc9b58cfb99825a9859b215961a866a6a9c033dec040515ea501fffb828c4e1", kill_on_drop: false }`
[INFO] [stdout] 0dc9b58cfb99825a9859b215961a866a6a9c033dec040515ea501fffb828c4e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 99941ee1743dfc0a704f4bef5c5a23dc874a16569b86dadf9da2ff0a6efaf696
[INFO] running `Command { std: "docker" "start" "-a" "99941ee1743dfc0a704f4bef5c5a23dc874a16569b86dadf9da2ff0a6efaf696", kill_on_drop: false }`
[INFO] [stderr]    Compiling entrez-rs v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/parser/pubmed.rs:449:16
[INFO] [stdout]     |
[INFO] [stdout] 449 |                &txt.push("<");
[INFO] [stdout]     |                ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 449 |                let _ = &txt.push("<");
[INFO] [stdout]     |                +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/parser/pubmed.rs:464:20
[INFO] [stdout]     |
[INFO] [stdout] 464 |                    &txt.push(elem.tag_name().name());
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 464 |                    let _ = &txt.push(elem.tag_name().name());
[INFO] [stdout]     |                    +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/parser/pubmed.rs:466:16
[INFO] [stdout]     |
[INFO] [stdout] 466 |                &txt.push(">");
[INFO] [stdout]     |                ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 466 |                let _ = &txt.push(">");
[INFO] [stdout]     |                +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/parser/pubmed.rs:472:28
[INFO] [stdout]     |
[INFO] [stdout] 472 | ...                   &txt.push("<");
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 472 |                            let _ = &txt.push("<");
[INFO] [stdout]     |                            +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/parser/pubmed.rs:487:24
[INFO] [stdout]     |
[INFO] [stdout] 487 |                        &txt.push(c.tag_name().name());
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 487 |                        let _ = &txt.push(c.tag_name().name());
[INFO] [stdout]     |                        +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/parser/pubmed.rs:489:20
[INFO] [stdout]     |
[INFO] [stdout] 489 |                    &txt.push(">");
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 489 |                    let _ = &txt.push(">");
[INFO] [stdout]     |                    +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/parser/pubmed.rs:494:20
[INFO] [stdout]     |
[INFO] [stdout] 494 |                    &txt.push("</");
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 494 |                    let _ = &txt.push("</");
[INFO] [stdout]     |                    +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/parser/pubmed.rs:501:16
[INFO] [stdout]     |
[INFO] [stdout] 501 |                &txt.push(c.tag_name().name());
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 501 |                let _ = &txt.push(c.tag_name().name());
[INFO] [stdout]     |                +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/parser/pubmed.rs:502:16
[INFO] [stdout]     |
[INFO] [stdout] 502 |                &txt.push(">");
[INFO] [stdout]     |                ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 502 |                let _ = &txt.push(">");
[INFO] [stdout]     |                +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/parser/pubmed.rs:521:16
[INFO] [stdout]     |
[INFO] [stdout] 521 |                &txt.push("</");
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 521 |                let _ = &txt.push("</");
[INFO] [stdout]     |                +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/parser/pubmed.rs:528:16
[INFO] [stdout]     |
[INFO] [stdout] 528 |                &txt.push(elem.tag_name().name());
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 528 |                let _ = &txt.push(elem.tag_name().name());
[INFO] [stdout]     |                +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/parser/pubmed.rs:529:16
[INFO] [stdout]     |
[INFO] [stdout] 529 |                &txt.push(">");
[INFO] [stdout]     |                ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 529 |                let _ = &txt.push(">");
[INFO] [stdout]     |                +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/parser/pubmed.rs:449:16
[INFO] [stdout]     |
[INFO] [stdout] 449 |                &txt.push("<");
[INFO] [stdout]     |                ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 449 |                let _ = &txt.push("<");
[INFO] [stdout]     |                +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/parser/pubmed.rs:464:20
[INFO] [stdout]     |
[INFO] [stdout] 464 |                    &txt.push(elem.tag_name().name());
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 464 |                    let _ = &txt.push(elem.tag_name().name());
[INFO] [stdout]     |                    +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/parser/pubmed.rs:466:16
[INFO] [stdout]     |
[INFO] [stdout] 466 |                &txt.push(">");
[INFO] [stdout]     |                ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 466 |                let _ = &txt.push(">");
[INFO] [stdout]     |                +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/parser/pubmed.rs:472:28
[INFO] [stdout]     |
[INFO] [stdout] 472 | ...                   &txt.push("<");
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 472 |                            let _ = &txt.push("<");
[INFO] [stdout]     |                            +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/parser/pubmed.rs:487:24
[INFO] [stdout]     |
[INFO] [stdout] 487 |                        &txt.push(c.tag_name().name());
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 487 |                        let _ = &txt.push(c.tag_name().name());
[INFO] [stdout]     |                        +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/parser/pubmed.rs:489:20
[INFO] [stdout]     |
[INFO] [stdout] 489 |                    &txt.push(">");
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 489 |                    let _ = &txt.push(">");
[INFO] [stdout]     |                    +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/parser/pubmed.rs:494:20
[INFO] [stdout]     |
[INFO] [stdout] 494 |                    &txt.push("</");
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 494 |                    let _ = &txt.push("</");
[INFO] [stdout]     |                    +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/parser/pubmed.rs:501:16
[INFO] [stdout]     |
[INFO] [stdout] 501 |                &txt.push(c.tag_name().name());
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 501 |                let _ = &txt.push(c.tag_name().name());
[INFO] [stdout]     |                +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/parser/pubmed.rs:502:16
[INFO] [stdout]     |
[INFO] [stdout] 502 |                &txt.push(">");
[INFO] [stdout]     |                ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 502 |                let _ = &txt.push(">");
[INFO] [stdout]     |                +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/parser/pubmed.rs:521:16
[INFO] [stdout]     |
[INFO] [stdout] 521 |                &txt.push("</");
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 521 |                let _ = &txt.push("</");
[INFO] [stdout]     |                +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/parser/pubmed.rs:528:16
[INFO] [stdout]     |
[INFO] [stdout] 528 |                &txt.push(elem.tag_name().name());
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 528 |                let _ = &txt.push(elem.tag_name().name());
[INFO] [stdout]     |                +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/parser/pubmed.rs:529:16
[INFO] [stdout]     |
[INFO] [stdout] 529 |                &txt.push(">");
[INFO] [stdout]     |                ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 529 |                let _ = &txt.push(">");
[INFO] [stdout]     |                +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.70s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: quick-xml v0.20.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "99941ee1743dfc0a704f4bef5c5a23dc874a16569b86dadf9da2ff0a6efaf696", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99941ee1743dfc0a704f4bef5c5a23dc874a16569b86dadf9da2ff0a6efaf696", kill_on_drop: false }`
[INFO] [stdout] 99941ee1743dfc0a704f4bef5c5a23dc874a16569b86dadf9da2ff0a6efaf696
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 01f86abd8129f6662274533833cec4b12256f7ee60303a92840e84ea6b62b851
[INFO] running `Command { std: "docker" "start" "-a" "01f86abd8129f6662274533833cec4b12256f7ee60303a92840e84ea6b62b851", kill_on_drop: false }`
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/parser/pubmed.rs:449:16
[INFO] [stderr]     |
[INFO] [stderr] 449 |                &txt.push("<");
[INFO] [stderr]     |                ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 449 |                let _ = &txt.push("<");
[INFO] [stderr]     |                +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/parser/pubmed.rs:464:20
[INFO] [stderr]     |
[INFO] [stderr] 464 |                    &txt.push(elem.tag_name().name());
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 464 |                    let _ = &txt.push(elem.tag_name().name());
[INFO] [stderr]     |                    +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/parser/pubmed.rs:466:16
[INFO] [stderr]     |
[INFO] [stderr] 466 |                &txt.push(">");
[INFO] [stderr]     |                ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 466 |                let _ = &txt.push(">");
[INFO] [stderr]     |                +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/parser/pubmed.rs:472:28
[INFO] [stderr]     |
[INFO] [stderr] 472 | ...                   &txt.push("<");
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 472 |                            let _ = &txt.push("<");
[INFO] [stderr]     |                            +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/parser/pubmed.rs:487:24
[INFO] [stderr]     |
[INFO] [stderr] 487 |                        &txt.push(c.tag_name().name());
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 487 |                        let _ = &txt.push(c.tag_name().name());
[INFO] [stderr]     |                        +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/parser/pubmed.rs:489:20
[INFO] [stderr]     |
[INFO] [stderr] 489 |                    &txt.push(">");
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 489 |                    let _ = &txt.push(">");
[INFO] [stderr]     |                    +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/parser/pubmed.rs:494:20
[INFO] [stderr]     |
[INFO] [stderr] 494 |                    &txt.push("</");
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 494 |                    let _ = &txt.push("</");
[INFO] [stderr]     |                    +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/parser/pubmed.rs:501:16
[INFO] [stderr]     |
[INFO] [stderr] 501 |                &txt.push(c.tag_name().name());
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 501 |                let _ = &txt.push(c.tag_name().name());
[INFO] [stderr]     |                +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/parser/pubmed.rs:502:16
[INFO] [stderr]     |
[INFO] [stderr] 502 |                &txt.push(">");
[INFO] [stderr]     |                ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 502 |                let _ = &txt.push(">");
[INFO] [stderr]     |                +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/parser/pubmed.rs:521:16
[INFO] [stderr]     |
[INFO] [stderr] 521 |                &txt.push("</");
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 521 |                let _ = &txt.push("</");
[INFO] [stderr]     |                +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/parser/pubmed.rs:528:16
[INFO] [stderr]     |
[INFO] [stderr] 528 |                &txt.push(elem.tag_name().name());
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 528 |                let _ = &txt.push(elem.tag_name().name());
[INFO] [stderr]     |                +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/parser/pubmed.rs:529:16
[INFO] [stderr]     |
[INFO] [stderr] 529 |                &txt.push(">");
[INFO] [stderr]     |                ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 529 |                let _ = &txt.push(">");
[INFO] [stderr]     |                +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `entrez-rs` (lib) generated 12 warnings
[INFO] [stderr] warning: `entrez-rs` (lib test) generated 12 warnings (12 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: quick-xml v0.20.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/entrez_rs-62fa7f7adb6039e5)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/esearch_test.rs (/opt/rustwide/target/debug/deps/esearch_test-db927a72552a148c)
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::build_efetch ... ok
[INFO] [stdout] test tests::build_esearch ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test esearch_run_test ... FAILED
[INFO] [stderr] error: test failed, to rerun pass `--test esearch_test`
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- esearch_run_test stdout ----
[INFO] [stdout] Error: ConnectionError(reqwest::Error { kind: Request, url: Url { scheme: "https", cannot_be_a_base: false, username: "", password: None, host: Some(Domain("eutils.ncbi.nlm.nih.gov")), port: None, path: "/entrez/eutils/esearch.fcgi", query: Some("db=pubmed&term=eclampsia&usehistory=y&rettype=xml&retmode=xml"), fragment: None }, source: hyper::Error(Connect, ConnectError("dns error", Custom { kind: Uncategorized, error: "failed to lookup address information: Temporary failure in name resolution" })) })
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     esearch_run_test
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.17s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "01f86abd8129f6662274533833cec4b12256f7ee60303a92840e84ea6b62b851", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01f86abd8129f6662274533833cec4b12256f7ee60303a92840e84ea6b62b851", kill_on_drop: false }`
[INFO] [stdout] 01f86abd8129f6662274533833cec4b12256f7ee60303a92840e84ea6b62b851