[INFO] updating cached repository RCasatta/ots-aggregator
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/RCasatta/ots-aggregator
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/RCasatta/ots-aggregator" "work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/RCasatta/ots-aggregator"`
[INFO] [stderr] Cloning into 'work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/RCasatta/ots-aggregator'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/RCasatta/ots-aggregator" "work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/RCasatta/ots-aggregator"`
[INFO] [stderr] Cloning into 'work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/RCasatta/ots-aggregator'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b272c3c29bc982c5f4206faef8d07f4f1a1ee612
[INFO] sha for GitHub repo RCasatta/ots-aggregator: b272c3c29bc982c5f4206faef8d07f4f1a1ee612
[INFO] validating manifest of RCasatta/ots-aggregator on toolchain master#f66e4697ae286985ddefc53c3a047614568458bb
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of RCasatta/ots-aggregator on toolchain try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing RCasatta/ots-aggregator
[INFO] finished frobbing RCasatta/ots-aggregator
[INFO] frobbed toml for RCasatta/ots-aggregator written to work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/RCasatta/ots-aggregator/Cargo.toml
[INFO] started frobbing RCasatta/ots-aggregator
[INFO] finished frobbing RCasatta/ots-aggregator
[INFO] frobbed toml for RCasatta/ots-aggregator written to work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/RCasatta/ots-aggregator/Cargo.toml
[INFO] crate RCasatta/ots-aggregator has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking RCasatta/ots-aggregator against master#f66e4697ae286985ddefc53c3a047614568458bb for pr-58592
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58592/worker-3/master#f66e4697ae286985ddefc53c3a047614568458bb:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/RCasatta/ots-aggregator:/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" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 0c393fa1b7b1d71a3ca300205537c5dcdb7695df076e82d3c9d539840338c77d
[INFO] running `"docker" "start" "-a" "0c393fa1b7b1d71a3ca300205537c5dcdb7695df076e82d3c9d539840338c77d"`
[INFO] [stderr]     Checking ots-aggregator v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `merkle::Sha256Hash`
[INFO] [stderr]    --> src/merkle.rs:121:9
[INFO] [stderr]     |
[INFO] [stderr] 121 |     use merkle::Sha256Hash;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Millis`
[INFO] [stderr]  --> src/merkle.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use Millis;
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Millis`
[INFO] [stderr]   --> src/timer.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | use Millis;
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Millis`
[INFO] [stderr]  --> src/merkle.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use Millis;
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Millis`
[INFO] [stderr]   --> src/timer.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | use Millis;
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Write`, `self`
[INFO] [stderr]  --> examples/load_testing.rs:6:15
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::io::{self, Write};
[INFO] [stderr]   |               ^^^^  ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> examples/load_testing.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 |     for i in 0..100 {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> examples/load_testing.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 22 |         start(arg1);
[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 5.27s
[INFO] running `"docker" "inspect" "0c393fa1b7b1d71a3ca300205537c5dcdb7695df076e82d3c9d539840338c77d"`
[INFO] running `"docker" "rm" "-f" "0c393fa1b7b1d71a3ca300205537c5dcdb7695df076e82d3c9d539840338c77d"`
[INFO] [stdout] 0c393fa1b7b1d71a3ca300205537c5dcdb7695df076e82d3c9d539840338c77d