[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-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/maniflames/time-frame-json-generator"` [INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/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-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/maniflames/time-frame-json-generator"` [INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/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#0f88167f89fffe321590c5148f21b7d51d44388d [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of maniflames/time-frame-json-generator on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-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-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/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-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/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/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking maniflames/time-frame-json-generator against try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b for pr-58948 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-1/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/maniflames/time-frame-json-generator:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 5206bae7e997bad8c5fb2bf89668c58b813e73dff3ce0b02342ce1ef2188a7f9 [INFO] running `"docker" "start" "-a" "5206bae7e997bad8c5fb2bf89668c58b813e73dff3ce0b02342ce1ef2188a7f9"` [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] 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] | [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 0.66s [INFO] running `"docker" "inspect" "5206bae7e997bad8c5fb2bf89668c58b813e73dff3ce0b02342ce1ef2188a7f9"` [INFO] running `"docker" "rm" "-f" "5206bae7e997bad8c5fb2bf89668c58b813e73dff3ce0b02342ce1ef2188a7f9"` [INFO] [stdout] 5206bae7e997bad8c5fb2bf89668c58b813e73dff3ce0b02342ce1ef2188a7f9