[INFO] fetching crate mongodb-helper 0.1.6...
[INFO] checking mongodb-helper-0.1.6 against try#4a04890980766cc79878135f5ade8c0c4321e943 for pr-65819
[INFO] extracting crate mongodb-helper 0.1.6 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate mongodb-helper 0.1.6 on toolchain 4a04890980766cc79878135f5ade8c0c4321e943
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mongodb-helper 0.1.6
[INFO] finished tweaking crates.io crate mongodb-helper 0.1.6
[INFO] tweaked toml for crates.io crate mongodb-helper 0.1.6 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rustls v0.16.0
[INFO] [stderr]   Downloaded typed-builder v0.3.0
[INFO] [stderr]   Downloaded mongodb v0.9.2
[INFO] [stderr]   Downloaded derivative v1.0.4
[INFO] [stderr]   Downloaded r2d2-mongodb v0.2.2
[INFO] [stderr]   Downloaded os_info v1.3.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d8f56cf49030a133e43c9265408b1d1a8bcb447c8b6488506b25c0afca44e257
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d8f56cf49030a133e43c9265408b1d1a8bcb447c8b6488506b25c0afca44e257", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d8f56cf49030a133e43c9265408b1d1a8bcb447c8b6488506b25c0afca44e257", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8f56cf49030a133e43c9265408b1d1a8bcb447c8b6488506b25c0afca44e257", kill_on_drop: false }`
[INFO] [stdout] d8f56cf49030a133e43c9265408b1d1a8bcb447c8b6488506b25c0afca44e257
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d6886bb14b1300a4e10a282e04d21e626958c8c303ef5aadb62823a7c33621f7
[INFO] running `Command { std: "docker" "start" "-a" "d6886bb14b1300a4e10a282e04d21e626958c8c303ef5aadb62823a7c33621f7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.93
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[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]    Compiling typenum v1.13.0
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[INFO] [stderr]     Checking smallvec v1.6.1
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[INFO] [stderr]    Compiling unicode-xid v0.1.0
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[INFO] [stderr]    Compiling os_info v1.3.3
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[INFO] [stderr]    Compiling openssl-sys v0.9.61
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[INFO] [stderr]     Checking futures-util v0.3.14
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking url v2.2.1
[INFO] [stderr]    Compiling syn v0.15.44
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[INFO] [stderr]    Compiling openssl v0.10.33
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[INFO] [stderr]     Checking sct v0.6.1
[INFO] [stderr]     Checking webpki-roots v0.18.0
[INFO] [stderr]     Checking rustls v0.16.0
[INFO] [stderr]     Checking futures v0.3.14
[INFO] [stderr]    Compiling darling_core v0.12.3
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling enum-as-inner v0.3.3
[INFO] [stderr]    Compiling async-trait v0.1.49
[INFO] [stderr]    Compiling darling_macro v0.12.3
[INFO] [stderr]    Compiling typed-builder v0.3.0
[INFO] [stderr]    Compiling derivative v1.0.4
[INFO] [stderr]    Compiling darling v0.12.3
[INFO] [stderr]    Compiling serde_with_macros v1.4.1
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking trust-dns-proto v0.19.7
[INFO] [stderr]     Checking trust-dns-resolver v0.19.7
[INFO] [stderr]     Checking serde v1.0.125
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[INFO] [stderr]     Checking textnonce v0.6.5
[INFO] [stderr]     Checking serde_with v1.8.0
[INFO] [stdout] error[E0597]: `version_regex` does not live long enough
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/os_info-1.3.3/src/linux/file_release.rs:36:13
[INFO] [stdout]    |
[INFO] [stdout] 36 |               version_regex
[INFO] [stdout]    |               -^^^^^^^^^^^^
[INFO] [stdout]    |               |
[INFO] [stdout]    |  _____________borrowed value does not live long enough
[INFO] [stdout]    | |
[INFO] [stdout] 37 | |                 .captures_iter(&file_content)
[INFO] [stdout]    | |_____________________________________________- a temporary with access to the borrow is created here ...
[INFO] [stdout] ...
[INFO] [stdout] 41 |           } else {
[INFO] [stdout]    |           -
[INFO] [stdout]    |           |
[INFO] [stdout]    |           `version_regex` dropped here while still borrowed
[INFO] [stdout]    |           ... and the borrow might be used here, when that temporary is dropped and runs the destructor for type `regex::CaptureMatches<'_, '_>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: the temporary is part of an expression at the end of a block;
[INFO] [stdout]            consider forcing this temporary to be dropped sooner, before the block's local variables are dropped
[INFO] [stdout] help: for example, you could save the expression's value in a new local variable `x` and then make `x` be the expression at the end of the block
[INFO] [stdout]    |
[INFO] [stdout] 36 |             let x = version_regex
[INFO] [stdout] 37 |                 .captures_iter(&file_content)
[INFO] [stdout] 38 |                 .next()
[INFO] [stdout] 39 |                 .and_then(|c| c.get(1))
[INFO] [stdout] 40 |                 .map(|v| v.as_str().trim_end().to_owned()); x
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0597`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `os_info`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "d6886bb14b1300a4e10a282e04d21e626958c8c303ef5aadb62823a7c33621f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6886bb14b1300a4e10a282e04d21e626958c8c303ef5aadb62823a7c33621f7", kill_on_drop: false }`
[INFO] [stdout] d6886bb14b1300a4e10a282e04d21e626958c8c303ef5aadb62823a7c33621f7