[INFO] fetching crate cursed-collections 0.6.2...
[INFO] testing cursed-collections-0.6.2 against 1.55.0 for beta-1.56-1
[INFO] extracting crate cursed-collections 0.6.2 into /workspace/builds/worker-23/source
[INFO] validating manifest of crates.io crate cursed-collections 0.6.2 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cursed-collections 0.6.2
[INFO] finished tweaking crates.io crate cursed-collections 0.6.2
[INFO] tweaked toml for crates.io crate cursed-collections 0.6.2 written to /workspace/builds/worker-23/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ac7a38613aca88f6a718c367f8faaa7b4fc642d28b3cf52eb9d67e6fd74f6dc2
[INFO] running `Command { std: "docker" "start" "-a" "ac7a38613aca88f6a718c367f8faaa7b4fc642d28b3cf52eb9d67e6fd74f6dc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac7a38613aca88f6a718c367f8faaa7b4fc642d28b3cf52eb9d67e6fd74f6dc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac7a38613aca88f6a718c367f8faaa7b4fc642d28b3cf52eb9d67e6fd74f6dc2", kill_on_drop: false }`
[INFO] [stdout] ac7a38613aca88f6a718c367f8faaa7b4fc642d28b3cf52eb9d67e6fd74f6dc2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 74b50be45f5573e426365fa34f71712fd13f6897b98bab98187737a774c67c85
[INFO] running `Command { std: "docker" "start" "-a" "74b50be45f5573e426365fa34f71712fd13f6897b98bab98187737a774c67c85", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cursed-collections v0.6.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.99s
[INFO] running `Command { std: "docker" "inspect" "74b50be45f5573e426365fa34f71712fd13f6897b98bab98187737a774c67c85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74b50be45f5573e426365fa34f71712fd13f6897b98bab98187737a774c67c85", kill_on_drop: false }`
[INFO] [stdout] 74b50be45f5573e426365fa34f71712fd13f6897b98bab98187737a774c67c85
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 92365eea5efdcc5023ee1fd78fa0b28ca71053a4067dfccd7dfaffd12629e653
[INFO] running `Command { std: "docker" "start" "-a" "92365eea5efdcc5023ee1fd78fa0b28ca71053a4067dfccd7dfaffd12629e653", kill_on_drop: false }`
[INFO] [stderr]    Compiling cursed-collections v0.6.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/append_only_vec.rs:217:9
[INFO] [stdout]     |
[INFO] [stdout] 217 |         &vec[2];
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` 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 0.97s
[INFO] running `Command { std: "docker" "inspect" "92365eea5efdcc5023ee1fd78fa0b28ca71053a4067dfccd7dfaffd12629e653", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92365eea5efdcc5023ee1fd78fa0b28ca71053a4067dfccd7dfaffd12629e653", kill_on_drop: false }`
[INFO] [stdout] 92365eea5efdcc5023ee1fd78fa0b28ca71053a4067dfccd7dfaffd12629e653
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2bb4943364c68077fc8276699bed5f85c2ba1cb07027c6fbacd4de403e439682
[INFO] running `Command { std: "docker" "start" "-a" "2bb4943364c68077fc8276699bed5f85c2ba1cb07027c6fbacd4de403e439682", kill_on_drop: false }`
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/append_only_vec.rs:217:9
[INFO] [stderr]     |
[INFO] [stderr] 217 |         &vec[2];
[INFO] [stderr]     |         ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `cursed-collections` (lib test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/cursed_collections-8c6970d5fa71ba72)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test append_only_vec::tests::it_works ... ok
[INFO] [stdout] test append_only_vec::tests::index ... ok
[INFO] [stdout] test append_only_vec::tests::len_empty ... ok
[INFO] [stdout] test append_only_vec::tests::len_1 ... ok
[INFO] [stdout] test append_only_vec::tests::len_multiple_segments ... ok
[INFO] [stdout] test append_only_vec::tests::references_still_valid_after_another_segment_is_created ... ok
[INFO] [stdout] test lazy_array::tests::cannot_insert_twice ... ok
[INFO] [stdout] test lazy_array::tests::it_works ... ok
[INFO] [stdout] test append_only_vec::tests::index_out_of_bounds - should panic ... ok
[INFO] [stdout] test lazy_array::tests::cannot_put_out_of_bounds - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests cursed-collections
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lazy_array.rs - lazy_array::LazyArray (line 10) ... ok
[INFO] [stdout] test src/append_only_vec.rs - append_only_vec::AppendOnlyVec (line 67) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.46s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2bb4943364c68077fc8276699bed5f85c2ba1cb07027c6fbacd4de403e439682", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bb4943364c68077fc8276699bed5f85c2ba1cb07027c6fbacd4de403e439682", kill_on_drop: false }`
[INFO] [stdout] 2bb4943364c68077fc8276699bed5f85c2ba1cb07027c6fbacd4de403e439682