[INFO] fetching crate colosseum 0.2.2...
[INFO] checking colosseum-0.2.2 against master#9610dfe5a9a731ced1ea4923ecbd0c57fe367898 for beta-170-4
[INFO] extracting crate colosseum 0.2.2 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate colosseum 0.2.2 on toolchain 9610dfe5a9a731ced1ea4923ecbd0c57fe367898
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate colosseum 0.2.2
[INFO] finished tweaking crates.io crate colosseum 0.2.2
[INFO] tweaked toml for crates.io crate colosseum 0.2.2 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 823106d95bc5671a432efddb49c34ef4d6a3a1a8c5c7175aa4fa3c37d4d6354b
[INFO] running `Command { std: "docker" "start" "-a" "823106d95bc5671a432efddb49c34ef4d6a3a1a8c5c7175aa4fa3c37d4d6354b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "823106d95bc5671a432efddb49c34ef4d6a3a1a8c5c7175aa4fa3c37d4d6354b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "823106d95bc5671a432efddb49c34ef4d6a3a1a8c5c7175aa4fa3c37d4d6354b", kill_on_drop: false }`
[INFO] [stdout] 823106d95bc5671a432efddb49c34ef4d6a3a1a8c5c7175aa4fa3c37d4d6354b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fda332cb868f39e19da59212ebd781e2bf38394fed3f54c4c8f228d5e3734245
[INFO] running `Command { std: "docker" "start" "-a" "fda332cb868f39e19da59212ebd781e2bf38394fed3f54c4c8f228d5e3734245", kill_on_drop: false }`
[INFO] [stderr]     Checking colosseum v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/sync.rs:97:13
[INFO] [stdout]    |
[INFO] [stdout] 97 |             mem::drop(node);
[INFO] [stdout]    |             ^^^^^^^^^^----^
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       argument has type `&sync::test::Node<'_, '_>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/unsync.rs:89:13
[INFO] [stdout]    |
[INFO] [stdout] 89 |             mem::drop(node);
[INFO] [stdout]    |             ^^^^^^^^^^----^
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       argument has type `&unsync::test::Node<'_, '_>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] running `Command { std: "docker" "inspect" "fda332cb868f39e19da59212ebd781e2bf38394fed3f54c4c8f228d5e3734245", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fda332cb868f39e19da59212ebd781e2bf38394fed3f54c4c8f228d5e3734245", kill_on_drop: false }`
[INFO] [stdout] fda332cb868f39e19da59212ebd781e2bf38394fed3f54c4c8f228d5e3734245
