[INFO] cloning repository https://github.com/khammersmith17/circular_buffer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/khammersmith17/circular_buffer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkhammersmith17%2Fcircular_buffer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkhammersmith17%2Fcircular_buffer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 868fa3b04c580f909f2a0f0acac83201f325ffac
[INFO] testing khammersmith17/circular_buffer against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkhammersmith17%2Fcircular_buffer" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/khammersmith17/circular_buffer
[INFO] finished tweaking git repo https://github.com/khammersmith17/circular_buffer
[INFO] tweaked toml for git repo https://github.com/khammersmith17/circular_buffer written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/khammersmith17/circular_buffer on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/khammersmith17/circular_buffer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e7d17b0413968f747fd8971918b72ff2e1272d2572f31890faef0f518b99d8d1
[INFO] running `Command { std: "docker" "start" "-a" "e7d17b0413968f747fd8971918b72ff2e1272d2572f31890faef0f518b99d8d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7d17b0413968f747fd8971918b72ff2e1272d2572f31890faef0f518b99d8d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7d17b0413968f747fd8971918b72ff2e1272d2572f31890faef0f518b99d8d1", kill_on_drop: false }`
[INFO] [stdout] e7d17b0413968f747fd8971918b72ff2e1272d2572f31890faef0f518b99d8d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 24cb68827d7aa4508dba89dce8fbec02af9fdb572f0a585dc4794d43ec8447d1
[INFO] running `Command { std: "docker" "start" "-a" "24cb68827d7aa4508dba89dce8fbec02af9fdb572f0a585dc4794d43ec8447d1", kill_on_drop: false }`
[INFO] [stderr]    Compiling circular_buffer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "24cb68827d7aa4508dba89dce8fbec02af9fdb572f0a585dc4794d43ec8447d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24cb68827d7aa4508dba89dce8fbec02af9fdb572f0a585dc4794d43ec8447d1", kill_on_drop: false }`
[INFO] [stdout] 24cb68827d7aa4508dba89dce8fbec02af9fdb572f0a585dc4794d43ec8447d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f321ea7f74e59241212df182c6420ac190a88c69ed97a9a93fd379f12de960d6
[INFO] running `Command { std: "docker" "start" "-a" "f321ea7f74e59241212df182c6420ac190a88c69ed97a9a93fd379f12de960d6", kill_on_drop: false }`
[INFO] [stderr]    Compiling circular_buffer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `ticker`
[INFO] [stdout]    --> src/lib.rs:350:24
[INFO] [stdout]     |
[INFO] [stdout] 350 |         while let Some(ticker) = buffer.peek_from_end(end) {
[INFO] [stdout]     |                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_ticker`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "f321ea7f74e59241212df182c6420ac190a88c69ed97a9a93fd379f12de960d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f321ea7f74e59241212df182c6420ac190a88c69ed97a9a93fd379f12de960d6", kill_on_drop: false }`
[INFO] [stdout] f321ea7f74e59241212df182c6420ac190a88c69ed97a9a93fd379f12de960d6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 546a8ccd7544bb26f42f8ec087a32a54ddd08b1071e3f707f1cdb572e5f3409d
[INFO] running `Command { std: "docker" "start" "-a" "546a8ccd7544bb26f42f8ec087a32a54ddd08b1071e3f707f1cdb572e5f3409d", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `ticker`
[INFO] [stderr]    --> src/lib.rs:350:24
[INFO] [stderr]     |
[INFO] [stderr] 350 |         while let Some(ticker) = buffer.peek_from_end(end) {
[INFO] [stderr]     |                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_ticker`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `circular_buffer` (lib test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/circular_buffer-e4aeaa1778aab76b)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test tests::test_head_comp_edge ... ok
[INFO] [stdout] test tests::test_head_comp_edge2 ... ok
[INFO] [stdout] test tests::basic_queue_test ... ok
[INFO] [stdout] test tests::test_head_comp_not_full ... ok
[INFO] [stdout] test tests::test_head_comp_overflow ... ok
[INFO] [stdout] test tests::test_peek_from_end_loop ... ok
[INFO] [stdout] test tests::test_peek_from_end ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests circular_buffer
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "546a8ccd7544bb26f42f8ec087a32a54ddd08b1071e3f707f1cdb572e5f3409d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "546a8ccd7544bb26f42f8ec087a32a54ddd08b1071e3f707f1cdb572e5f3409d", kill_on_drop: false }`
[INFO] [stdout] 546a8ccd7544bb26f42f8ec087a32a54ddd08b1071e3f707f1cdb572e5f3409d