[INFO] fetching crate polyhorn-core 0.4.0...
[INFO] testing polyhorn-core-0.4.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate polyhorn-core 0.4.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate polyhorn-core 0.4.0 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate polyhorn-core 0.4.0
[INFO] finished tweaking crates.io crate polyhorn-core 0.4.0
[INFO] tweaked toml for crates.io crate polyhorn-core 0.4.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 66620a760fa3089f95b8c8f6502280fcad1c62b0aedfd8744cb362abb4df7bb5
[INFO] running `Command { std: "docker" "start" "-a" "66620a760fa3089f95b8c8f6502280fcad1c62b0aedfd8744cb362abb4df7bb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "66620a760fa3089f95b8c8f6502280fcad1c62b0aedfd8744cb362abb4df7bb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66620a760fa3089f95b8c8f6502280fcad1c62b0aedfd8744cb362abb4df7bb5", kill_on_drop: false }`
[INFO] [stdout] 66620a760fa3089f95b8c8f6502280fcad1c62b0aedfd8744cb362abb4df7bb5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 80ea632241b0ba9555f7a03872cd26ee1b7c03e5adcc276e0bde44fe7a95f046
[INFO] running `Command { std: "docker" "start" "-a" "80ea632241b0ba9555f7a03872cd26ee1b7c03e5adcc276e0bde44fe7a95f046", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling futures-executor v0.3.21
[INFO] [stderr]    Compiling futures v0.3.21
[INFO] [stderr]    Compiling polyhorn-core v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: types that do not implement `Drop` can still have drop glue, consider instead using `std::mem::needs_drop` to detect whether a type is trivially dropped
[INFO] [stdout]  --> src/disposable.rs:1:31
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Disposable(Box<dyn Drop>);
[INFO] [stdout]   |                               ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dyn_drop)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.21s
[INFO] running `Command { std: "docker" "inspect" "80ea632241b0ba9555f7a03872cd26ee1b7c03e5adcc276e0bde44fe7a95f046", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80ea632241b0ba9555f7a03872cd26ee1b7c03e5adcc276e0bde44fe7a95f046", kill_on_drop: false }`
[INFO] [stdout] 80ea632241b0ba9555f7a03872cd26ee1b7c03e5adcc276e0bde44fe7a95f046
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ea3aa07fbfe346010bfe047c5feeb57ae49e755f1ad8a5e45f21834ec3a88817
[INFO] running `Command { std: "docker" "start" "-a" "ea3aa07fbfe346010bfe047c5feeb57ae49e755f1ad8a5e45f21834ec3a88817", kill_on_drop: false }`
[INFO] [stderr]    Compiling polyhorn-core v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: types that do not implement `Drop` can still have drop glue, consider instead using `std::mem::needs_drop` to detect whether a type is trivially dropped
[INFO] [stdout]  --> src/disposable.rs:1:31
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Disposable(Box<dyn Drop>);
[INFO] [stdout]   |                               ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dyn_drop)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: types that do not implement `Drop` can still have drop glue, consider instead using `std::mem::needs_drop` to detect whether a type is trivially dropped
[INFO] [stdout]  --> src/disposable.rs:1:31
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Disposable(Box<dyn Drop>);
[INFO] [stdout]   |                               ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dyn_drop)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.93s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/polyhorn_core-4acc88558f4cdeab)
[INFO] running `Command { std: "docker" "inspect" "ea3aa07fbfe346010bfe047c5feeb57ae49e755f1ad8a5e45f21834ec3a88817", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea3aa07fbfe346010bfe047c5feeb57ae49e755f1ad8a5e45f21834ec3a88817", kill_on_drop: false }`
[INFO] [stdout] ea3aa07fbfe346010bfe047c5feeb57ae49e755f1ad8a5e45f21834ec3a88817
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 82bf4b7881573d8d11f499f64fa9b5b9162efd842c5a36e717da176302bfd98c
[INFO] running `Command { std: "docker" "start" "-a" "82bf4b7881573d8d11f499f64fa9b5b9162efd842c5a36e717da176302bfd98c", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: types that do not implement `Drop` can still have drop glue, consider instead using `std::mem::needs_drop` to detect whether a type is trivially dropped
[INFO] [stdout] running 1 test
[INFO] [stderr]  --> src/disposable.rs:1:31
[INFO] [stdout] test key::tests::test_key ... ok
[INFO] [stderr]   |
[INFO] [stdout] 
[INFO] [stderr] 1 | pub struct Disposable(Box<dyn Drop>);
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]   |                               ^^^^
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dyn_drop)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `polyhorn-core` (lib) generated 1 warning
[INFO] [stderr] warning: `polyhorn-core` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/polyhorn_core-4acc88558f4cdeab)
[INFO] [stderr]    Doc-tests polyhorn-core
[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" "82bf4b7881573d8d11f499f64fa9b5b9162efd842c5a36e717da176302bfd98c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82bf4b7881573d8d11f499f64fa9b5b9162efd842c5a36e717da176302bfd98c", kill_on_drop: false }`
[INFO] [stdout] 82bf4b7881573d8d11f499f64fa9b5b9162efd842c5a36e717da176302bfd98c