[INFO] fetching crate forgotten 1.2.0...
[INFO] checking forgotten-1.2.0 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate forgotten 1.2.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate forgotten 1.2.0 on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate forgotten 1.2.0
[INFO] finished tweaking crates.io crate forgotten 1.2.0
[INFO] tweaked toml for crates.io crate forgotten 1.2.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 8 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0edd4cbc9ce7a7387446a671cec1d400563a442ec07a4bd4732d872a6a7922ed
[INFO] running `Command { std: "docker" "start" "-a" "0edd4cbc9ce7a7387446a671cec1d400563a442ec07a4bd4732d872a6a7922ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0edd4cbc9ce7a7387446a671cec1d400563a442ec07a4bd4732d872a6a7922ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0edd4cbc9ce7a7387446a671cec1d400563a442ec07a4bd4732d872a6a7922ed", kill_on_drop: false }`
[INFO] [stdout] 0edd4cbc9ce7a7387446a671cec1d400563a442ec07a4bd4732d872a6a7922ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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 -Dtail_expr_drop_order" "-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2b485fa792fec07c0ac39449436193108dab6209d886fa292b7b7c1c6696b0fe
[INFO] running `Command { std: "docker" "start" "-a" "2b485fa792fec07c0ac39449436193108dab6209d886fa292b7b7c1c6696b0fe", kill_on_drop: false }`
[INFO] [stderr]     Checking forgotten v1.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/global/forgotten_impl.rs:617:9
[INFO] [stdout]     |
[INFO] [stdout] 617 |         drop(k);
[INFO] [stdout]     |         ^^^^^-^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              argument has type `shared_key::SharedForgottenKey<forgotten_impl::tests::test_shared_key::MyValue>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dropping_copy_types)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 617 -         drop(k);
[INFO] [stdout] 617 +         let _ = k;
[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 0.65s
[INFO] running `Command { std: "docker" "inspect" "2b485fa792fec07c0ac39449436193108dab6209d886fa292b7b7c1c6696b0fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b485fa792fec07c0ac39449436193108dab6209d886fa292b7b7c1c6696b0fe", kill_on_drop: false }`
[INFO] [stdout] 2b485fa792fec07c0ac39449436193108dab6209d886fa292b7b7c1c6696b0fe