[INFO] fetching crate tempo_tapper 0.5.5...
[INFO] testing tempo_tapper-0.5.5 against try#2440211fe03bc45c89b6dc1a3df18382ce91e32b for pr-146098-1
[INFO] extracting crate tempo_tapper 0.5.5 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate tempo_tapper 0.5.5
[INFO] finished tweaking crates.io crate tempo_tapper 0.5.5
[INFO] tweaked toml for crates.io crate tempo_tapper 0.5.5 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tempo_tapper 0.5.5 on toolchain 2440211fe03bc45c89b6dc1a3df18382ce91e32b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate tempo_tapper 0.5.5 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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f64da106b0f654f3ae225857513bb48e018dc6898e09c0f47d56cb2791f0420a
[INFO] running `Command { std: "docker" "start" "-a" "f64da106b0f654f3ae225857513bb48e018dc6898e09c0f47d56cb2791f0420a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f64da106b0f654f3ae225857513bb48e018dc6898e09c0f47d56cb2791f0420a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f64da106b0f654f3ae225857513bb48e018dc6898e09c0f47d56cb2791f0420a", kill_on_drop: false }`
[INFO] [stdout] f64da106b0f654f3ae225857513bb48e018dc6898e09c0f47d56cb2791f0420a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 754879b2d616f635135e5120f6dec1619621e869f3238f7884d734e9e021813b
[INFO] running `Command { std: "docker" "start" "-a" "754879b2d616f635135e5120f6dec1619621e869f3238f7884d734e9e021813b", kill_on_drop: false }`
[INFO] [stderr]    Compiling tempo_tapper v0.5.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "754879b2d616f635135e5120f6dec1619621e869f3238f7884d734e9e021813b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "754879b2d616f635135e5120f6dec1619621e869f3238f7884d734e9e021813b", kill_on_drop: false }`
[INFO] [stdout] 754879b2d616f635135e5120f6dec1619621e869f3238f7884d734e9e021813b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 38a25c4b32b8d8c2a1b025aff6a4e06dee004920515b8b5a5e7b4918cec8913d
[INFO] running `Command { std: "docker" "start" "-a" "38a25c4b32b8d8c2a1b025aff6a4e06dee004920515b8b5a5e7b4918cec8913d", kill_on_drop: false }`
[INFO] [stderr]    Compiling tempo_tapper v0.5.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "38a25c4b32b8d8c2a1b025aff6a4e06dee004920515b8b5a5e7b4918cec8913d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38a25c4b32b8d8c2a1b025aff6a4e06dee004920515b8b5a5e7b4918cec8913d", kill_on_drop: false }`
[INFO] [stdout] 38a25c4b32b8d8c2a1b025aff6a4e06dee004920515b8b5a5e7b4918cec8913d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5a81b90499363a63215ab01e141299fa33105aa717c9de86b6cb00c07368d9e3
[INFO] running `Command { std: "docker" "start" "-a" "5a81b90499363a63215ab01e141299fa33105aa717c9de86b6cb00c07368d9e3", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/tempo-f40a775a416ce6cc)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test tests::ringbuf::from_iter ... ok
[INFO] [stdout] test tests::ringbuf::double_ended_iter ... ok
[INFO] [stdout] test tests::ringbuf::truncate_back ... ok
[INFO] [stdout] test tests::ringbuf::truncate_front ... ok
[INFO] [stdout] test tests::ringbuf::push_clobber ... ok
[INFO] [stdout] test tests::ringbuf::push_pop ... ok
[INFO] [stdout] test tests::ringbuf::clear ... ok
[INFO] [stdout] test tests::ringbuf::double_ended_iter_overflow ... ok
[INFO] [stdout] test tests::ringbuf::overflow ... ok
[INFO] [stdout] test tests::ringbuf::from_iter_excess - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5a81b90499363a63215ab01e141299fa33105aa717c9de86b6cb00c07368d9e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a81b90499363a63215ab01e141299fa33105aa717c9de86b6cb00c07368d9e3", kill_on_drop: false }`
[INFO] [stdout] 5a81b90499363a63215ab01e141299fa33105aa717c9de86b6cb00c07368d9e3