[INFO] updating cached repository maniflames/time-frame-json-generator
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/maniflames/time-frame-json-generator
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/maniflames/time-frame-json-generator" "work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/maniflames/time-frame-json-generator"`
[INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/maniflames/time-frame-json-generator'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/maniflames/time-frame-json-generator" "work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/maniflames/time-frame-json-generator"`
[INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/maniflames/time-frame-json-generator'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5177d990276887f3c5803f437e2020504c242f6f
[INFO] sha for GitHub repo maniflames/time-frame-json-generator: 5177d990276887f3c5803f437e2020504c242f6f
[INFO] validating manifest of maniflames/time-frame-json-generator on toolchain master#a850a426491e14186af2250549bf41256b5938d2
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of maniflames/time-frame-json-generator on toolchain try#06a150c7d11500b41499224f165e9de1de096768
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing maniflames/time-frame-json-generator
[INFO] finished frobbing maniflames/time-frame-json-generator
[INFO] frobbed toml for maniflames/time-frame-json-generator written to work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/maniflames/time-frame-json-generator/Cargo.toml
[INFO] started frobbing maniflames/time-frame-json-generator
[INFO] finished frobbing maniflames/time-frame-json-generator
[INFO] frobbed toml for maniflames/time-frame-json-generator written to work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/maniflames/time-frame-json-generator/Cargo.toml
[INFO] crate maniflames/time-frame-json-generator already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking maniflames/time-frame-json-generator against master#a850a426491e14186af2250549bf41256b5938d2 for pr-60162
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60162/worker-3/master#a850a426491e14186af2250549bf41256b5938d2:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/maniflames/time-frame-json-generator:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] d91630c3e6473339b8f9fe22dd897a23eea2763e5c3536a2f9d6dd8b5a5511da
[INFO] running `"docker" "start" "-a" "d91630c3e6473339b8f9fe22dd897a23eea2763e5c3536a2f9d6dd8b5a5511da"`
[INFO] [stderr]     Checking timeframe v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `self`
[INFO] [stderr]  --> src/main.rs:7:29
[INFO] [stderr]   |
[INFO] [stderr] 7 | use rustc_serialize::json::{self, Encoder};
[INFO] [stderr]   |                             ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self`
[INFO] [stderr]  --> src/main.rs:7:29
[INFO] [stderr]   |
[INFO] [stderr] 7 | use rustc_serialize::json::{self, Encoder};
[INFO] [stderr]   |                             ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/utils.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 |     f.read_to_string(&mut json);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/utils.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 |     f.read_to_string(&mut json);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `"docker" "inspect" "d91630c3e6473339b8f9fe22dd897a23eea2763e5c3536a2f9d6dd8b5a5511da"`
[INFO] running `"docker" "rm" "-f" "d91630c3e6473339b8f9fe22dd897a23eea2763e5c3536a2f9d6dd8b5a5511da"`
[INFO] [stdout] d91630c3e6473339b8f9fe22dd897a23eea2763e5c3536a2f9d6dd8b5a5511da