[INFO] fetching crate dasp_ring_buffer 0.11.0...
[INFO] checking dasp_ring_buffer-0.11.0 against master#35936c4839dd272646394779d151e060d0f6b3ac for pr-122960-1
[INFO] extracting crate dasp_ring_buffer 0.11.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate dasp_ring_buffer 0.11.0 on toolchain 35936c4839dd272646394779d151e060d0f6b3ac
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+35936c4839dd272646394779d151e060d0f6b3ac" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dasp_ring_buffer 0.11.0
[INFO] finished tweaking crates.io crate dasp_ring_buffer 0.11.0
[INFO] tweaked toml for crates.io crate dasp_ring_buffer 0.11.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+35936c4839dd272646394779d151e060d0f6b3ac" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+35936c4839dd272646394779d151e060d0f6b3ac" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+35936c4839dd272646394779d151e060d0f6b3ac" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7ddd123f0ba16d611e290f4977d6c77c4bba45a5012549c9bb7cbfcab0e1434b
[INFO] running `Command { std: "docker" "start" "-a" "7ddd123f0ba16d611e290f4977d6c77c4bba45a5012549c9bb7cbfcab0e1434b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7ddd123f0ba16d611e290f4977d6c77c4bba45a5012549c9bb7cbfcab0e1434b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ddd123f0ba16d611e290f4977d6c77c4bba45a5012549c9bb7cbfcab0e1434b", kill_on_drop: false }`
[INFO] [stdout] 7ddd123f0ba16d611e290f4977d6c77c4bba45a5012549c9bb7cbfcab0e1434b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+35936c4839dd272646394779d151e060d0f6b3ac" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 70a75a4d639160ee48c3d79ffd7e020f4106ed16b90b575fc95044106d1cf353
[INFO] running `Command { std: "docker" "start" "-a" "70a75a4d639160ee48c3d79ffd7e020f4106ed16b90b575fc95044106d1cf353", kill_on_drop: false }`
[INFO] [stderr]     Checking dasp_ring_buffer v0.11.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `from` that must be used
[INFO] [stdout]   --> tests/ring_buffer.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     ring_buffer::Bounded::from(Vec::<i32>::new());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let _ = ring_buffer::Bounded::from(Vec::<i32>::new());
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "70a75a4d639160ee48c3d79ffd7e020f4106ed16b90b575fc95044106d1cf353", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70a75a4d639160ee48c3d79ffd7e020f4106ed16b90b575fc95044106d1cf353", kill_on_drop: false }`
[INFO] [stdout] 70a75a4d639160ee48c3d79ffd7e020f4106ed16b90b575fc95044106d1cf353
[INFO] checking dasp_ring_buffer-0.11.0 against try#9ae1860851f3fbc1435a1698e572252c0076f413 for pr-122960-1
[INFO] extracting crate dasp_ring_buffer 0.11.0 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate dasp_ring_buffer 0.11.0 on toolchain 9ae1860851f3fbc1435a1698e572252c0076f413
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9ae1860851f3fbc1435a1698e572252c0076f413" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dasp_ring_buffer 0.11.0
[INFO] finished tweaking crates.io crate dasp_ring_buffer 0.11.0
[INFO] tweaked toml for crates.io crate dasp_ring_buffer 0.11.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9ae1860851f3fbc1435a1698e572252c0076f413" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9ae1860851f3fbc1435a1698e572252c0076f413" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+9ae1860851f3fbc1435a1698e572252c0076f413" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0bdb91f9b53c2e8b7c986e39ac028cd2d81303049e1ebbab27c39fd9c14138f9
[INFO] running `Command { std: "docker" "start" "-a" "0bdb91f9b53c2e8b7c986e39ac028cd2d81303049e1ebbab27c39fd9c14138f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0bdb91f9b53c2e8b7c986e39ac028cd2d81303049e1ebbab27c39fd9c14138f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bdb91f9b53c2e8b7c986e39ac028cd2d81303049e1ebbab27c39fd9c14138f9", kill_on_drop: false }`
[INFO] [stdout] 0bdb91f9b53c2e8b7c986e39ac028cd2d81303049e1ebbab27c39fd9c14138f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+9ae1860851f3fbc1435a1698e572252c0076f413" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 483b1f669e16020e4ab5147c2aa180850285f14ad4bf0843bdc7275d89efa4d2
[INFO] running `Command { std: "docker" "start" "-a" "483b1f669e16020e4ab5147c2aa180850285f14ad4bf0843bdc7275d89efa4d2", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] skipping non-2021 edition `2018`
[INFO] running `Command { std: "docker" "inspect" "483b1f669e16020e4ab5147c2aa180850285f14ad4bf0843bdc7275d89efa4d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "483b1f669e16020e4ab5147c2aa180850285f14ad4bf0843bdc7275d89efa4d2", kill_on_drop: false }`
[INFO] [stdout] 483b1f669e16020e4ab5147c2aa180850285f14ad4bf0843bdc7275d89efa4d2