[INFO] fetching crate entrez-rs 0.1.2...
[INFO] checking entrez-rs-0.1.2 against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] extracting crate entrez-rs 0.1.2 into /workspace/builds/worker-105/source
[INFO] validating manifest of crates.io crate entrez-rs 0.1.2 on toolchain 39e1293fce4b650061e85dda88aa428f726a8444
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate entrez-rs 0.1.2
[INFO] finished tweaking crates.io crate entrez-rs 0.1.2
[INFO] tweaked toml for crates.io crate entrez-rs 0.1.2 written to /workspace/builds/worker-105/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded quick-xml v0.20.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1c06dc70e8ccab3d6cd9338d2917d1e57d58d7ca4c1bc0c447c12b40ac789ea3
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[INFO] running `Command { std: "docker" "inspect" "1c06dc70e8ccab3d6cd9338d2917d1e57d58d7ca4c1bc0c447c12b40ac789ea3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c06dc70e8ccab3d6cd9338d2917d1e57d58d7ca4c1bc0c447c12b40ac789ea3", kill_on_drop: false }`
[INFO] [stdout] 1c06dc70e8ccab3d6cd9338d2917d1e57d58d7ca4c1bc0c447c12b40ac789ea3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 313bc943b28628854064e0ae14736b1f8a4dee60a81b0a635a351e8fe35334e7
[INFO] running `Command { std: "docker" "start" "-a" "313bc943b28628854064e0ae14736b1f8a4dee60a81b0a635a351e8fe35334e7", kill_on_drop: false }`
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[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling futures-task v0.3.16
[INFO] [stderr]     Checking futures-io v0.3.16
[INFO] [stderr]     Checking xmlparser v0.13.3
[INFO] [stderr]    Compiling futures-util v0.3.16
[INFO] [stderr]    Compiling serde_derive v1.0.127
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[INFO] [stderr]     Checking tracing v0.1.26
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[INFO] [stderr]     Checking h2 v0.2.7
[INFO] [stderr]     Checking serde v1.0.127
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[INFO] [stderr]     Checking entrez-rs v0.1.2 (/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)]` 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)]` 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: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.28s
[INFO] running `Command { std: "docker" "inspect" "313bc943b28628854064e0ae14736b1f8a4dee60a81b0a635a351e8fe35334e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "313bc943b28628854064e0ae14736b1f8a4dee60a81b0a635a351e8fe35334e7", kill_on_drop: false }`
[INFO] [stdout] 313bc943b28628854064e0ae14736b1f8a4dee60a81b0a635a351e8fe35334e7