[INFO] updating cached repository zzeroo/average
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/zzeroo/average
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/zzeroo/average" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/zzeroo/average"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/zzeroo/average'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/zzeroo/average" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/zzeroo/average"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/zzeroo/average'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6c564a292035638e9687a3f16040f6f713958678
[INFO] sha for GitHub repo zzeroo/average: 6c564a292035638e9687a3f16040f6f713958678
[INFO] validating manifest of zzeroo/average on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of zzeroo/average on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing zzeroo/average
[INFO] finished frobbing zzeroo/average
[INFO] frobbed toml for zzeroo/average written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/zzeroo/average/Cargo.toml
[INFO] started frobbing zzeroo/average
[INFO] finished frobbing zzeroo/average
[INFO] frobbed toml for zzeroo/average written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/zzeroo/average/Cargo.toml
[INFO] crate zzeroo/average has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing zzeroo/average against master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-1/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/zzeroo/average:/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "build" "--frozen"`
[INFO] [stdout] 5fa470d8a25839a5e8fccdfca5836b0b8129d3446fff258ba03745c1da5c66fb
[INFO] running `"docker" "start" "-a" "5fa470d8a25839a5e8fccdfca5836b0b8129d3446fff258ba03745c1da5c66fb"`
[INFO] [stderr]    Compiling num-traits v0.1.36
[INFO] [stderr]    Compiling libc v0.2.20
[INFO] [stderr]    Compiling serde v0.9.7
[INFO] [stderr]    Compiling time v0.1.36
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]    Compiling num-integer v0.1.32
[INFO] [stderr]    Compiling num-iter v0.1.32
[INFO] [stderr]    Compiling num v0.1.36
[INFO] [stderr]    Compiling chrono v0.3.0
[INFO] [stderr]    Compiling average v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `chrono::prelude::*`
[INFO] [stderr]  --> src/lib.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use chrono::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `three_second`
[INFO] [stderr]   --> src/lib.rs:26:9
[INFO] [stderr]    |
[INFO] [stderr] 26 |     let three_second = Duration::new(3, 0);
[INFO] [stderr]    |         ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_three_second`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `sum`
[INFO] [stderr]   --> src/lib.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | fn sum(values: &Vec<(u32, Instant)>) -> Option<f64> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.22s
[INFO] running `"docker" "inspect" "5fa470d8a25839a5e8fccdfca5836b0b8129d3446fff258ba03745c1da5c66fb"`
[INFO] running `"docker" "rm" "-f" "5fa470d8a25839a5e8fccdfca5836b0b8129d3446fff258ba03745c1da5c66fb"`
[INFO] [stdout] 5fa470d8a25839a5e8fccdfca5836b0b8129d3446fff258ba03745c1da5c66fb
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-1/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/zzeroo/average:/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 3426a96f0fb4a01d4c014614e56114f56ea9a090188b2bfd7ec5c994ea59ff6d
[INFO] running `"docker" "start" "-a" "3426a96f0fb4a01d4c014614e56114f56ea9a090188b2bfd7ec5c994ea59ff6d"`
[INFO] [stderr]    Compiling average v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `chrono::prelude::*`
[INFO] [stderr]  --> src/lib.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use chrono::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `three_second`
[INFO] [stderr]   --> src/lib.rs:26:9
[INFO] [stderr]    |
[INFO] [stderr] 26 |     let three_second = Duration::new(3, 0);
[INFO] [stderr]    |         ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_three_second`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/lib.rs:69:13
[INFO] [stderr]    |
[INFO] [stderr] 69 |         for i in 0..1801 {
[INFO] [stderr]    |             ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `"docker" "inspect" "3426a96f0fb4a01d4c014614e56114f56ea9a090188b2bfd7ec5c994ea59ff6d"`
[INFO] running `"docker" "rm" "-f" "3426a96f0fb4a01d4c014614e56114f56ea9a090188b2bfd7ec5c994ea59ff6d"`
[INFO] [stdout] 3426a96f0fb4a01d4c014614e56114f56ea9a090188b2bfd7ec5c994ea59ff6d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-1/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/zzeroo/average:/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen"`
[INFO] [stdout] aa08b6206ae74764a6a0c92467311295b958974ee3eb09bc9ea60b5e48d60bba
[INFO] running `"docker" "start" "-a" "aa08b6206ae74764a6a0c92467311295b958974ee3eb09bc9ea60b5e48d60bba"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/average-0703fff2d4df8ca7
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::test_sum ... ok
[INFO] [stdout] test tests::bench_sum ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/average-e30882c5ae546572
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests average
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "aa08b6206ae74764a6a0c92467311295b958974ee3eb09bc9ea60b5e48d60bba"`
[INFO] running `"docker" "rm" "-f" "aa08b6206ae74764a6a0c92467311295b958974ee3eb09bc9ea60b5e48d60bba"`
[INFO] [stdout] aa08b6206ae74764a6a0c92467311295b958974ee3eb09bc9ea60b5e48d60bba