[INFO] fetching crate persistent_stack 0.1.1...
[INFO] testing persistent_stack-0.1.1 against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] extracting crate persistent_stack 0.1.1 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate persistent_stack 0.1.1 on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate persistent_stack 0.1.1
[INFO] finished tweaking crates.io crate persistent_stack 0.1.1
[INFO] tweaked toml for crates.io crate persistent_stack 0.1.1 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8dc64bd4b44fb7be29c43f9ab18cb2641893f8713a0597496709517d5290549a
[INFO] running `Command { std: "docker" "start" "-a" "8dc64bd4b44fb7be29c43f9ab18cb2641893f8713a0597496709517d5290549a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8dc64bd4b44fb7be29c43f9ab18cb2641893f8713a0597496709517d5290549a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8dc64bd4b44fb7be29c43f9ab18cb2641893f8713a0597496709517d5290549a", kill_on_drop: false }`
[INFO] [stdout] 8dc64bd4b44fb7be29c43f9ab18cb2641893f8713a0597496709517d5290549a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d1655a82cdb6c6e4fc423178d37b1d212e9adcca9c132a7df8aedd6dea9ca5a7
[INFO] running `Command { std: "docker" "start" "-a" "d1655a82cdb6c6e4fc423178d37b1d212e9adcca9c132a7df8aedd6dea9ca5a7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling persistent_stack v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "d1655a82cdb6c6e4fc423178d37b1d212e9adcca9c132a7df8aedd6dea9ca5a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1655a82cdb6c6e4fc423178d37b1d212e9adcca9c132a7df8aedd6dea9ca5a7", kill_on_drop: false }`
[INFO] [stdout] d1655a82cdb6c6e4fc423178d37b1d212e9adcca9c132a7df8aedd6dea9ca5a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0be75025a32562e908380004e7b61acfc1e1c205846fab5097900653cf7260d3
[INFO] running `Command { std: "docker" "start" "-a" "0be75025a32562e908380004e7b61acfc1e1c205846fab5097900653cf7260d3", kill_on_drop: false }`
[INFO] [stderr]    Compiling persistent_stack v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `Command { std: "docker" "inspect" "0be75025a32562e908380004e7b61acfc1e1c205846fab5097900653cf7260d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0be75025a32562e908380004e7b61acfc1e1c205846fab5097900653cf7260d3", kill_on_drop: false }`
[INFO] [stdout] 0be75025a32562e908380004e7b61acfc1e1c205846fab5097900653cf7260d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 627c77c927783ac4f3d11b48aee196db33c7b8f096ef09710808ed32b19fc669
[INFO] running `Command { std: "docker" "start" "-a" "627c77c927783ac4f3d11b48aee196db33c7b8f096ef09710808ed32b19fc669", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 2 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/persistent_stack-5dd0ffc2ee509e85)
[INFO] [stdout] test tests::test_persistent_stack ... ok
[INFO] [stdout] test tests::readme_example ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests persistent_stack
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/lib.rs - PersistentStack<T>::new (line 57) ... ok
[INFO] [stdout] test src/lib.rs - PersistentStack<T>::pop (line 95) ... ok
[INFO] [stdout] test src/lib.rs - PersistentStack (line 15) ... ok
[INFO] [stdout] test src/lib.rs - PersistentStack<T>::iter (line 124) ... ok
[INFO] [stdout] test src/lib.rs - PersistentStack<T>::push (line 69) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.06s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "627c77c927783ac4f3d11b48aee196db33c7b8f096ef09710808ed32b19fc669", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "627c77c927783ac4f3d11b48aee196db33c7b8f096ef09710808ed32b19fc669", kill_on_drop: false }`
[INFO] [stdout] 627c77c927783ac4f3d11b48aee196db33c7b8f096ef09710808ed32b19fc669