[INFO] fetching crate polyhorn-core 0.4.0...
[INFO] testing polyhorn-core-0.4.0 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate polyhorn-core 0.4.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate polyhorn-core 0.4.0 on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "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-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 64b6493dcbef4600c5193d99a030a5810b44c4e3db16622a4491a6ecaf8567ee
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "64b6493dcbef4600c5193d99a030a5810b44c4e3db16622a4491a6ecaf8567ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "64b6493dcbef4600c5193d99a030a5810b44c4e3db16622a4491a6ecaf8567ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64b6493dcbef4600c5193d99a030a5810b44c4e3db16622a4491a6ecaf8567ee", kill_on_drop: false }`
[INFO] [stdout] 64b6493dcbef4600c5193d99a030a5810b44c4e3db16622a4491a6ecaf8567ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d42824f4ea77be2be1315c6f8c0881d3d8088e96a0eea7e242c3ca7b64253111
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d42824f4ea77be2be1315c6f8c0881d3d8088e96a0eea7e242c3ca7b64253111", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling futures-channel v0.3.18
[INFO] [stderr]    Compiling futures-task v0.3.18
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling futures-sink v0.3.18
[INFO] [stderr]    Compiling futures-util v0.3.18
[INFO] [stderr]    Compiling slab v0.4.5
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.7
[INFO] [stderr]    Compiling futures-macro v0.3.18
[INFO] [stderr]    Compiling futures-executor v0.3.18
[INFO] [stderr]    Compiling futures v0.3.18
[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 26.50s
[INFO] running `Command { std: "docker" "inspect" "d42824f4ea77be2be1315c6f8c0881d3d8088e96a0eea7e242c3ca7b64253111", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d42824f4ea77be2be1315c6f8c0881d3d8088e96a0eea7e242c3ca7b64253111", kill_on_drop: false }`
[INFO] [stdout] d42824f4ea77be2be1315c6f8c0881d3d8088e96a0eea7e242c3ca7b64253111
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 32e5a885eb0f80994035410eede7d09e85b5990063da7814e2595bb6a96cb72e
[INFO] running `Command { std: "docker" "start" "-a" "32e5a885eb0f80994035410eede7d09e85b5990063da7814e2595bb6a96cb72e", 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 1.42s
[INFO] running `Command { std: "docker" "inspect" "32e5a885eb0f80994035410eede7d09e85b5990063da7814e2595bb6a96cb72e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32e5a885eb0f80994035410eede7d09e85b5990063da7814e2595bb6a96cb72e", kill_on_drop: false }`
[INFO] [stdout] 32e5a885eb0f80994035410eede7d09e85b5990063da7814e2595bb6a96cb72e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 668f49c0f81d013c505c2dc9d40c6b6dd7eb28625e75a90d3a4f09ad565713b0
[INFO] running `Command { std: "docker" "start" "-a" "668f49c0f81d013c505c2dc9d40c6b6dd7eb28625e75a90d3a4f09ad565713b0", kill_on_drop: false }`
[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] [stderr]  --> src/disposable.rs:1:31
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub struct Disposable(Box<dyn Drop>);
[INFO] [stderr]   |                               ^^^^
[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 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/polyhorn_core-54e9b979776e3659)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test key::tests::test_key ... 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] [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" "668f49c0f81d013c505c2dc9d40c6b6dd7eb28625e75a90d3a4f09ad565713b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "668f49c0f81d013c505c2dc9d40c6b6dd7eb28625e75a90d3a4f09ad565713b0", kill_on_drop: false }`
[INFO] [stdout] 668f49c0f81d013c505c2dc9d40c6b6dd7eb28625e75a90d3a4f09ad565713b0