[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-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/gh/RCasatta/ots-aggregator"`
[INFO] [stderr] Cloning into 'work/ex/pr-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/gh/RCasatta/ots-aggregator'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/RCasatta/ots-aggregator" "work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/gh/RCasatta/ots-aggregator"`
[INFO] [stderr] Cloning into 'work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/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#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+adbfec229ce07ff4b2a7bf2d6dec2d13cb224980-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of RCasatta/ots-aggregator on toolchain try#bad365140e1e8233b42b21af70a407f14ce5fec5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bad365140e1e8233b42b21af70a407f14ce5fec5-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-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/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-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/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" "+adbfec229ce07ff4b2a7bf2d6dec2d13cb224980-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bad365140e1e8233b42b21af70a407f14ce5fec5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking RCasatta/ots-aggregator against try#bad365140e1e8233b42b21af70a407f14ce5fec5 for pr-56896
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56896/worker-3/try#bad365140e1e8233b42b21af70a407f14ce5fec5:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/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" "+bad365140e1e8233b42b21af70a407f14ce5fec5-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 417c202fad4945a468919ccf7038194768d20e093076d35e0072f4c994844b6a
[INFO] running `"docker" "start" "-a" "417c202fad4945a468919ccf7038194768d20e093076d35e0072f4c994844b6a"`
[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: a method with this name may be added to the standard library in the future
[INFO] [stderr]   --> src/merkle.rs:29:50
[INFO] [stderr]    |
[INFO] [stderr] 29 |              digests_sha256.len(), now.elapsed().as_millis(), root);
[INFO] [stderr]    |                                                  ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unstable_name_collisions)] on by default
[INFO] [stderr]    = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = help: call with fully qualified syntax `Millis::as_millis(...)` to keep using the current method
[INFO] [stderr]    = help: add #![feature(duration_as_u128)] to the crate attributes to enable `std::time::Duration::as_millis`
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]   --> src/merkle.rs:29:50
[INFO] [stderr]    |
[INFO] [stderr] 29 |              digests_sha256.len(), now.elapsed().as_millis(), root);
[INFO] [stderr]    |                                                  ^^^^^^^^^
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]   --> src/timer.rs:55:60
[INFO] [stderr]    |
[INFO] [stderr] 55 |                              res.status(), start.elapsed().as_millis());
[INFO] [stderr]    |                                                            ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unstable_name_collisions)] on by default
[INFO] [stderr]    = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = help: call with fully qualified syntax `Millis::as_millis(...)` to keep using the current method
[INFO] [stderr]    = help: add #![feature(duration_as_u128)] to the crate attributes to enable `std::time::Duration::as_millis`
[INFO] [stderr] 
[INFO] [stderr]    |
[INFO] [stderr]    = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = help: call with fully qualified syntax `Millis::as_millis(...)` to keep using the current method
[INFO] [stderr]    = help: add #![feature(duration_as_u128)] to the crate attributes to enable `std::time::Duration::as_millis`
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]   --> src/timer.rs:55:60
[INFO] [stderr]    |
[INFO] [stderr] 55 |                              res.status(), start.elapsed().as_millis());
[INFO] [stderr]    |                                                            ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = help: call with fully qualified syntax `Millis::as_millis(...)` to keep using the current method
[INFO] [stderr]    = help: add #![feature(duration_as_u128)] to the crate attributes to enable `std::time::Duration::as_millis`
[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 using `_i` instead
[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 4.28s
[INFO] running `"docker" "inspect" "417c202fad4945a468919ccf7038194768d20e093076d35e0072f4c994844b6a"`
[INFO] running `"docker" "rm" "-f" "417c202fad4945a468919ccf7038194768d20e093076d35e0072f4c994844b6a"`
[INFO] [stdout] 417c202fad4945a468919ccf7038194768d20e093076d35e0072f4c994844b6a