[INFO] cloning repository https://github.com/ryosukeeeee/ddsv
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ryosukeeeee/ddsv" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryosukeeeee%2Fddsv", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryosukeeeee%2Fddsv'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 73c951131d49a54240cb42626f435da7006be29e
[INFO] checking ryosukeeeee/ddsv against master#0599f3403366d9c57f0625e6de3af214b5042a90 for pr-87710
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryosukeeeee%2Fddsv" "/workspace/builds/worker-24/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-24/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ryosukeeeee/ddsv on toolchain 0599f3403366d9c57f0625e6de3af214b5042a90
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ryosukeeeee/ddsv
[INFO] finished tweaking git repo https://github.com/ryosukeeeee/ddsv
[INFO] tweaked toml for git repo https://github.com/ryosukeeeee/ddsv written to /workspace/builds/worker-24/source/Cargo.toml
[INFO] crate git repo https://github.com/ryosukeeeee/ddsv already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded quick-error v1.2.3
[INFO] [stderr]   Downloaded atty v0.2.14
[INFO] [stderr]   Downloaded humantime v1.3.0
[INFO] [stderr]   Downloaded aho-corasick v0.7.13
[INFO] [stderr]   Downloaded libc v0.2.74
[INFO] [stderr]   Downloaded lazy_static v1.4.0
[INFO] [stderr]   Downloaded hermit-abi v0.1.15
[INFO] [stderr]   Downloaded memchr v2.3.3
[INFO] [stderr]   Downloaded termcolor v1.1.0
[INFO] [stderr]   Downloaded env_logger v0.7.1
[INFO] [stderr]   Downloaded thread_local v1.0.1
[INFO] [stderr]   Downloaded winapi-util v0.1.5
[INFO] [stderr]   Downloaded log v0.4.11
[INFO] [stderr]   Downloaded regex v1.3.9
[INFO] [stderr]   Downloaded regex-syntax v0.6.18
[INFO] [stderr]   Downloaded winapi v0.3.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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" "+0599f3403366d9c57f0625e6de3af214b5042a90" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 75a7e02c73ae881cc5ebf958ba111c82e463ebda3b7a66289027e6205859b19c
[INFO] running `Command { std: "docker" "start" "-a" "75a7e02c73ae881cc5ebf958ba111c82e463ebda3b7a66289027e6205859b19c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "75a7e02c73ae881cc5ebf958ba111c82e463ebda3b7a66289027e6205859b19c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75a7e02c73ae881cc5ebf958ba111c82e463ebda3b7a66289027e6205859b19c", kill_on_drop: false }`
[INFO] [stdout] 75a7e02c73ae881cc5ebf958ba111c82e463ebda3b7a66289027e6205859b19c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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" "+0599f3403366d9c57f0625e6de3af214b5042a90" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 19e8d6a4faa8f9c6a7db83f614289e13ad01e7b9cd0b6f925548b20edab7ddf2
[INFO] running `Command { std: "docker" "start" "-a" "19e8d6a4faa8f9c6a7db83f614289e13ad01e7b9cd0b6f925548b20edab7ddf2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking ddsv v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/ddsv/data.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 | /         &self
[INFO] [stdout] 75 | |             .0
[INFO] [stdout] 76 | |             .iter()
[INFO] [stdout] 77 | |             .map(|v| {
[INFO] [stdout] ...  |
[INFO] [stdout] 80 | |             })
[INFO] [stdout] 81 | |             .collect::<Vec<_>>();
[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] 74 |         let _ = &self
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/ddsv/data.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 83 | /         &self
[INFO] [stdout] 84 | |             .0
[INFO] [stdout] 85 | |             .iter()
[INFO] [stdout] 86 | |             .map(|v| {
[INFO] [stdout] ...  |
[INFO] [stdout] 93 | |             })
[INFO] [stdout] 94 | |             .collect::<Vec<_>>();
[INFO] [stdout]    | |________________________________^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 83 |         let _ = &self
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/ddsv/data.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 | /         &self
[INFO] [stdout] 75 | |             .0
[INFO] [stdout] 76 | |             .iter()
[INFO] [stdout] 77 | |             .map(|v| {
[INFO] [stdout] ...  |
[INFO] [stdout] 80 | |             })
[INFO] [stdout] 81 | |             .collect::<Vec<_>>();
[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] 74 |         let _ = &self
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/ddsv/data.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 83 | /         &self
[INFO] [stdout] 84 | |             .0
[INFO] [stdout] 85 | |             .iter()
[INFO] [stdout] 86 | |             .map(|v| {
[INFO] [stdout] ...  |
[INFO] [stdout] 93 | |             })
[INFO] [stdout] 94 | |             .collect::<Vec<_>>();
[INFO] [stdout]    | |________________________________^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 83 |         let _ = &self
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.21s
[INFO] running `Command { std: "docker" "inspect" "19e8d6a4faa8f9c6a7db83f614289e13ad01e7b9cd0b6f925548b20edab7ddf2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19e8d6a4faa8f9c6a7db83f614289e13ad01e7b9cd0b6f925548b20edab7ddf2", kill_on_drop: false }`
[INFO] [stdout] 19e8d6a4faa8f9c6a7db83f614289e13ad01e7b9cd0b6f925548b20edab7ddf2