[INFO] updating cached repository william42/erato
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/william42/erato
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/william42/erato" "work/ex/beta-1.37-6/sources/1.36.0/gh/william42/erato"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/william42/erato'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/william42/erato" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/william42/erato"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/william42/erato'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b0e1bba392aa99b64f3dd11f1fb58b1f4fe764af
[INFO] sha for GitHub repo william42/erato: b0e1bba392aa99b64f3dd11f1fb58b1f4fe764af
[INFO] validating manifest of william42/erato on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of william42/erato on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing william42/erato
[INFO] finished frobbing william42/erato
[INFO] frobbed toml for william42/erato written to work/ex/beta-1.37-6/sources/1.36.0/gh/william42/erato/Cargo.toml
[INFO] started frobbing william42/erato
[INFO] finished frobbing william42/erato
[INFO] frobbed toml for william42/erato written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/william42/erato/Cargo.toml
[INFO] crate william42/erato already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing william42/erato against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/william42/erato:/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=warn" "-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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] f5c073a25d07d7dc16a11efaf5bbc7d80e6c958105f080f349bd4a7422a6a261
[INFO] running `"docker" "start" "-a" "f5c073a25d07d7dc16a11efaf5bbc7d80e6c958105f080f349bd4a7422a6a261"`
[INFO] [stderr]    Compiling erato v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `p`
[INFO] [stderr]  --> src/main.rs:9:34
[INFO] [stderr]   |
[INFO] [stderr] 9 |         if let Some(&Reverse((m, p))) = heap.peek() {
[INFO] [stderr]   |                                  ^ help: consider prefixing with an underscore: `_p`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `"docker" "inspect" "f5c073a25d07d7dc16a11efaf5bbc7d80e6c958105f080f349bd4a7422a6a261"`
[INFO] running `"docker" "rm" "-f" "f5c073a25d07d7dc16a11efaf5bbc7d80e6c958105f080f349bd4a7422a6a261"`
[INFO] [stdout] f5c073a25d07d7dc16a11efaf5bbc7d80e6c958105f080f349bd4a7422a6a261
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/william42/erato:/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=warn" "-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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 23986f92eb90542fd6cd6aa3e0aeecf5fd308100bb39d2e0e87d6c60c0849d9d
[INFO] running `"docker" "start" "-a" "23986f92eb90542fd6cd6aa3e0aeecf5fd308100bb39d2e0e87d6c60c0849d9d"`
[INFO] [stderr]    Compiling erato v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `p`
[INFO] [stderr]  --> src/main.rs:9:34
[INFO] [stderr]   |
[INFO] [stderr] 9 |         if let Some(&Reverse((m, p))) = heap.peek() {
[INFO] [stderr]   |                                  ^ help: consider prefixing with an underscore: `_p`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `"docker" "inspect" "23986f92eb90542fd6cd6aa3e0aeecf5fd308100bb39d2e0e87d6c60c0849d9d"`
[INFO] running `"docker" "rm" "-f" "23986f92eb90542fd6cd6aa3e0aeecf5fd308100bb39d2e0e87d6c60c0849d9d"`
[INFO] [stdout] 23986f92eb90542fd6cd6aa3e0aeecf5fd308100bb39d2e0e87d6c60c0849d9d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/william42/erato:/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=warn" "-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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] bcfbf8e8827b7f70a43505a86866bb8b3bdeab0d625814a5590e5d2000f4bb4e
[INFO] running `"docker" "start" "-a" "bcfbf8e8827b7f70a43505a86866bb8b3bdeab0d625814a5590e5d2000f4bb4e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/erato-a34b3cdde51c883d
[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" "bcfbf8e8827b7f70a43505a86866bb8b3bdeab0d625814a5590e5d2000f4bb4e"`
[INFO] running `"docker" "rm" "-f" "bcfbf8e8827b7f70a43505a86866bb8b3bdeab0d625814a5590e5d2000f4bb4e"`
[INFO] [stdout] bcfbf8e8827b7f70a43505a86866bb8b3bdeab0d625814a5590e5d2000f4bb4e