[INFO] cloning repository https://github.com/daveymoores/timesheet
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/daveymoores/timesheet" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdaveymoores%2Ftimesheet", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdaveymoores%2Ftimesheet'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 97baad6cacb6f6578a293c487fea17da17520964
[INFO] checking daveymoores/timesheet against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdaveymoores%2Ftimesheet" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/daveymoores/timesheet on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/daveymoores/timesheet
[INFO] finished tweaking git repo https://github.com/daveymoores/timesheet
[INFO] tweaked toml for git repo https://github.com/daveymoores/timesheet written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/daveymoores/timesheet already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--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 bson v2.0.0
[INFO] [stderr]   Downloaded git2 v0.13.23
[INFO] [stderr]   Downloaded mongodb v2.0.0
[INFO] [stderr]   Downloaded libssh2-sys v0.2.21
[INFO] [stderr]   Downloaded libgit2-sys v0.12.24+1.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d29fc923423e07421a7f85b2032d0a1eb135556ff0b60e0eb2c36d79d1e6f899
[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" "d29fc923423e07421a7f85b2032d0a1eb135556ff0b60e0eb2c36d79d1e6f899", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d29fc923423e07421a7f85b2032d0a1eb135556ff0b60e0eb2c36d79d1e6f899", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d29fc923423e07421a7f85b2032d0a1eb135556ff0b60e0eb2c36d79d1e6f899", kill_on_drop: false }`
[INFO] [stdout] d29fc923423e07421a7f85b2032d0a1eb135556ff0b60e0eb2c36d79d1e6f899
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8c7fc516de8b420801e94f598f4f72eeb955b82dac2528e7c2bc38fd7c939a4b
[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" "8c7fc516de8b420801e94f598f4f72eeb955b82dac2528e7c2bc38fd7c939a4b", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
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[INFO] [stderr]    Compiling unicode-xid v0.2.2
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[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling typenum v1.14.0
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling rustversion v1.0.5
[INFO] [stderr]     Checking opaque-debug v0.3.0
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[INFO] [stderr]     Checking regex-syntax v0.6.25
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[INFO] [stderr]    Compiling typed-builder v0.9.1
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling darling_macro v0.13.0
[INFO] [stderr]     Checking thiserror v1.0.29
[INFO] [stderr]    Compiling darling v0.13.0
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[INFO] [stderr]     Checking tokio-rustls v0.22.0
[INFO] [stderr]     Checking futures-executor v0.3.17
[INFO] [stderr]     Checking trust-dns-proto v0.20.3
[INFO] [stderr]     Checking futures v0.3.17
[INFO] [stderr]     Checking trust-dns-resolver v0.20.3
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[INFO] [stderr]     Checking serde_bytes v0.11.5
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[INFO] [stderr]     Checking serde_with v1.10.0
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[INFO] [stderr]     Checking mongodb v2.0.0
[INFO] [stderr]     Checking timesheet v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/db.rs:45:13
[INFO] [stdout]    |
[INFO] [stdout] 45 |             &self.generate_random_path(collection);
[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] 45 |             let _ = &self.generate_random_path(collection);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/db.rs:45:13
[INFO] [stdout]    |
[INFO] [stdout] 45 |             &self.generate_random_path(collection);
[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] 45 |             let _ = &self.generate_random_path(collection);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 50s
[INFO] running `Command { std: "docker" "inspect" "8c7fc516de8b420801e94f598f4f72eeb955b82dac2528e7c2bc38fd7c939a4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c7fc516de8b420801e94f598f4f72eeb955b82dac2528e7c2bc38fd7c939a4b", kill_on_drop: false }`
[INFO] [stdout] 8c7fc516de8b420801e94f598f4f72eeb955b82dac2528e7c2bc38fd7c939a4b