[INFO] fetching crate prometools 0.2.2...
[INFO] testing prometools-0.2.2 against try#b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b for pr-145330-1
[INFO] extracting crate prometools 0.2.2 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate prometools 0.2.2
[INFO] finished tweaking crates.io crate prometools 0.2.2
[INFO] tweaked toml for crates.io crate prometools 0.2.2 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate prometools 0.2.2 on toolchain b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 32 packages to latest compatible versions
[INFO] [stderr]       Adding prometheus-client v0.18.1 (available: v0.24.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0dbe602e24198445aee4ebd8bffb31a6d03584cc0d62e7555c9c3a7fce273cb9
[INFO] running `Command { std: "docker" "start" "-a" "0dbe602e24198445aee4ebd8bffb31a6d03584cc0d62e7555c9c3a7fce273cb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0dbe602e24198445aee4ebd8bffb31a6d03584cc0d62e7555c9c3a7fce273cb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0dbe602e24198445aee4ebd8bffb31a6d03584cc0d62e7555c9c3a7fce273cb9", kill_on_drop: false }`
[INFO] [stdout] 0dbe602e24198445aee4ebd8bffb31a6d03584cc0d62e7555c9c3a7fce273cb9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eb93ec088d22ec7c919fa67da3a1c48f2c12b07551a78269e5186aa787f82ccc
[INFO] running `Command { std: "docker" "start" "-a" "eb93ec088d22ec7c919fa67da3a1c48f2c12b07551a78269e5186aa787f82ccc", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling dtoa v1.0.10
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling parking_lot v0.12.4
[INFO] [stderr]    Compiling prometheus-client-derive-text-encode v0.3.0
[INFO] [stderr]    Compiling prometheus-client v0.18.1
[INFO] [stderr]    Compiling prometools v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.39s
[INFO] running `Command { std: "docker" "inspect" "eb93ec088d22ec7c919fa67da3a1c48f2c12b07551a78269e5186aa787f82ccc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb93ec088d22ec7c919fa67da3a1c48f2c12b07551a78269e5186aa787f82ccc", kill_on_drop: false }`
[INFO] [stdout] eb93ec088d22ec7c919fa67da3a1c48f2c12b07551a78269e5186aa787f82ccc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cdfdce041336b4c1ad93102e6d2b201dc0cc0a86e8fdb1744f06a23005eae4ea
[INFO] running `Command { std: "docker" "start" "-a" "cdfdce041336b4c1ad93102e6d2b201dc0cc0a86e8fdb1744f06a23005eae4ea", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling prometools v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 6.64s
[INFO] running `Command { std: "docker" "inspect" "cdfdce041336b4c1ad93102e6d2b201dc0cc0a86e8fdb1744f06a23005eae4ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdfdce041336b4c1ad93102e6d2b201dc0cc0a86e8fdb1744f06a23005eae4ea", kill_on_drop: false }`
[INFO] [stdout] cdfdce041336b4c1ad93102e6d2b201dc0cc0a86e8fdb1744f06a23005eae4ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 802e6c12693a29914bc1ceebb10fa236e7748dafd26113b96670694097d4cd6d
[INFO] running `Command { std: "docker" "start" "-a" "802e6c12693a29914bc1ceebb10fa236e7748dafd26113b96670694097d4cd6d", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running tests/histogram.rs (/opt/rustwide/target/debug/deps/histogram-cd32e70a9c899503)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test histogram ... ok
[INFO] [stdout] test timer_stop_and_discard ... ok
[INFO] [stdout] test timer_stop_and_record ... ok
[INFO] [stdout] test timer_pause_stop ... ok
[INFO] [stdout] test timer_resume_stop ... ok
[INFO] [stdout] test timer_pause_pause_stop ... ok
[INFO] [stdout] test timer_pause_resume_stop ... ok
[INFO] [stdout] test timer_resume_drop ... ok
[INFO] [stdout] test timer_pause_resume_pause_stop ... ok
[INFO] [stdout] test timer_pause_resume_pause_resume_stop ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.27s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests prometools
[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" "802e6c12693a29914bc1ceebb10fa236e7748dafd26113b96670694097d4cd6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "802e6c12693a29914bc1ceebb10fa236e7748dafd26113b96670694097d4cd6d", kill_on_drop: false }`
[INFO] [stdout] 802e6c12693a29914bc1ceebb10fa236e7748dafd26113b96670694097d4cd6d