[INFO] updating cached repository tomwhoiscontrary/isots
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/tomwhoiscontrary/isots
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/tomwhoiscontrary/isots" "work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/tomwhoiscontrary/isots"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/tomwhoiscontrary/isots'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/tomwhoiscontrary/isots" "work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/tomwhoiscontrary/isots"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/tomwhoiscontrary/isots'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 646f593552e1cbb620bc2c92c04e116d2a218e42
[INFO] sha for GitHub repo tomwhoiscontrary/isots: 646f593552e1cbb620bc2c92c04e116d2a218e42
[INFO] validating manifest of tomwhoiscontrary/isots 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 tomwhoiscontrary/isots 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 tomwhoiscontrary/isots
[INFO] finished frobbing tomwhoiscontrary/isots
[INFO] frobbed toml for tomwhoiscontrary/isots written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/tomwhoiscontrary/isots/Cargo.toml
[INFO] started frobbing tomwhoiscontrary/isots
[INFO] finished frobbing tomwhoiscontrary/isots
[INFO] frobbed toml for tomwhoiscontrary/isots written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/tomwhoiscontrary/isots/Cargo.toml
[INFO] crate tomwhoiscontrary/isots 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 tomwhoiscontrary/isots against try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b for pr-58948
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-0/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/tomwhoiscontrary/isots:/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] f52040d6df70929620b9a2a6cf28cfbcc8fafcc7ec554acd40ca9bc6bc751f35
[INFO] running `"docker" "start" "-a" "f52040d6df70929620b9a2a6cf28cfbcc8fafcc7ec554acd40ca9bc6bc751f35"`
[INFO] [stderr]     Checking isots v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:149:9
[INFO] [stderr]     |
[INFO] [stderr] 149 | /         write!(out,
[INFO] [stderr] 150 | |                "{}-{:02}-{:02}T{:02}:{:02}:{:02}Z",
[INFO] [stderr] 151 | |                time.year(),
[INFO] [stderr] 152 | |                time.month(),
[INFO] [stderr] ...   |
[INFO] [stderr] 155 | |                time.minute(),
[INFO] [stderr] 156 | |                time.second());
[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]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:158:9
[INFO] [stderr]     |
[INFO] [stderr] 158 | /         write!(out,
[INFO] [stderr] 159 | |                "{}-{:02}-{:02}T{:02}:{:02}:{:02}.{:0width$}Z",
[INFO] [stderr] 160 | |                time.year(),
[INFO] [stderr] 161 | |                time.month(),
[INFO] [stderr] ...   |
[INFO] [stderr] 166 | |                time.nanosecond(),
[INFO] [stderr] 167 | |                width = fractional_seconds_digits);
[INFO] [stderr]     | |__________________________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:149:9
[INFO] [stderr]     |
[INFO] [stderr] 149 | /         write!(out,
[INFO] [stderr] 150 | |                "{}-{:02}-{:02}T{:02}:{:02}:{:02}Z",
[INFO] [stderr] 151 | |                time.year(),
[INFO] [stderr] 152 | |                time.month(),
[INFO] [stderr] ...   |
[INFO] [stderr] 155 | |                time.minute(),
[INFO] [stderr] 156 | |                time.second());
[INFO] [stderr]     | |______________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:158:9
[INFO] [stderr]     |
[INFO] [stderr] 158 | /         write!(out,
[INFO] [stderr] 159 | |                "{}-{:02}-{:02}T{:02}:{:02}:{:02}.{:0width$}Z",
[INFO] [stderr] 160 | |                time.year(),
[INFO] [stderr] 161 | |                time.month(),
[INFO] [stderr] ...   |
[INFO] [stderr] 166 | |                time.nanosecond(),
[INFO] [stderr] 167 | |                width = fractional_seconds_digits);
[INFO] [stderr]     | |__________________________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `"docker" "inspect" "f52040d6df70929620b9a2a6cf28cfbcc8fafcc7ec554acd40ca9bc6bc751f35"`
[INFO] running `"docker" "rm" "-f" "f52040d6df70929620b9a2a6cf28cfbcc8fafcc7ec554acd40ca9bc6bc751f35"`
[INFO] [stdout] f52040d6df70929620b9a2a6cf28cfbcc8fafcc7ec554acd40ca9bc6bc751f35