[INFO] fetching crate ondrop 0.1.0...
[INFO] testing ondrop-0.1.0 against 1.54.0 for beta-1.55-1
[INFO] extracting crate ondrop 0.1.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate ondrop 0.1.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ondrop 0.1.0
[INFO] finished tweaking crates.io crate ondrop 0.1.0
[INFO] tweaked toml for crates.io crate ondrop 0.1.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8e93d93db3bc4e0cb35786b3a993d18516cbab4119f6907dd9a4df684bdb06d5
[INFO] running `Command { std: "docker" "start" "-a" "8e93d93db3bc4e0cb35786b3a993d18516cbab4119f6907dd9a4df684bdb06d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8e93d93db3bc4e0cb35786b3a993d18516cbab4119f6907dd9a4df684bdb06d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e93d93db3bc4e0cb35786b3a993d18516cbab4119f6907dd9a4df684bdb06d5", kill_on_drop: false }`
[INFO] [stdout] 8e93d93db3bc4e0cb35786b3a993d18516cbab4119f6907dd9a4df684bdb06d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b415582088c8a427f276ad441f3f6e6390273d1c96b66551f90e7cd775e73a75
[INFO] running `Command { std: "docker" "start" "-a" "b415582088c8a427f276ad441f3f6e6390273d1c96b66551f90e7cd775e73a75", kill_on_drop: false }`
[INFO] [stderr]    Compiling ondrop v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "b415582088c8a427f276ad441f3f6e6390273d1c96b66551f90e7cd775e73a75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b415582088c8a427f276ad441f3f6e6390273d1c96b66551f90e7cd775e73a75", kill_on_drop: false }`
[INFO] [stdout] b415582088c8a427f276ad441f3f6e6390273d1c96b66551f90e7cd775e73a75
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 51fde9758cb41f11cb7db510004cfe36458333a18037c0bda7e8c141963c0e51
[INFO] running `Command { std: "docker" "start" "-a" "51fde9758cb41f11cb7db510004cfe36458333a18037c0bda7e8c141963c0e51", kill_on_drop: false }`
[INFO] [stderr]    Compiling dropcheck v0.1.1
[INFO] [stderr]    Compiling ondrop v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `DropToken`
[INFO] [stdout]   --> src/lib.rs:63:32
[INFO] [stdout]    |
[INFO] [stdout] 63 |     use dropcheck::{DropCheck, DropToken};
[INFO] [stdout]    |                                ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:71:13
[INFO] [stdout]    |
[INFO] [stdout] 71 |         let mut dst = Cell::new(None);
[INFO] [stdout]    |             ----^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused closure that must be used
[INFO] [stdout]   --> src/lib.rs:77:9
[INFO] [stdout]    |
[INFO] [stdout] 77 |         ondrop.into_inner();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: closures are lazy and do nothing unless called
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.04s
[INFO] running `Command { std: "docker" "inspect" "51fde9758cb41f11cb7db510004cfe36458333a18037c0bda7e8c141963c0e51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51fde9758cb41f11cb7db510004cfe36458333a18037c0bda7e8c141963c0e51", kill_on_drop: false }`
[INFO] [stdout] 51fde9758cb41f11cb7db510004cfe36458333a18037c0bda7e8c141963c0e51
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8b95548bb209424dffdc25c382717413b5e503efb74f022720168bde18329ebd
[INFO] running `Command { std: "docker" "start" "-a" "8b95548bb209424dffdc25c382717413b5e503efb74f022720168bde18329ebd", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `DropToken`
[INFO] [stderr]   --> src/lib.rs:63:32
[INFO] [stderr]    |
[INFO] [stderr] 63 |     use dropcheck::{DropCheck, DropToken};
[INFO] [stderr]    |                                ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:71:13
[INFO] [stderr]    |
[INFO] [stderr] 71 |         let mut dst = Cell::new(None);
[INFO] [stderr]    |             ----^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused closure that must be used
[INFO] [stderr]   --> src/lib.rs:77:9
[INFO] [stderr]    |
[INFO] [stderr] 77 |         ondrop.into_inner();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: closures are lazy and do nothing unless called
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ondrop-04e729387e172139)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests ondrop
[INFO] [stdout] test tests::drops_closure_once ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - OnDrop<F>::into_inner (line 37) ... ok
[INFO] [stdout] test src/lib.rs - OnDrop (line 14) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.28s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8b95548bb209424dffdc25c382717413b5e503efb74f022720168bde18329ebd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b95548bb209424dffdc25c382717413b5e503efb74f022720168bde18329ebd", kill_on_drop: false }`
[INFO] [stdout] 8b95548bb209424dffdc25c382717413b5e503efb74f022720168bde18329ebd
