[INFO] fetching crate ds_store 0.2.1...
[INFO] testing ds_store-0.2.1 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate ds_store 0.2.1 into /workspace/builds/worker-41/source
[INFO] validating manifest of crates.io crate ds_store 0.2.1 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ds_store 0.2.1
[INFO] removed 1 missing examples
[INFO] finished tweaking crates.io crate ds_store 0.2.1
[INFO] tweaked toml for crates.io crate ds_store 0.2.1 written to /workspace/builds/worker-41/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 26b49d96dc310e269ccbafcf156bd79f86875d67c41dad05cd6596d05f97d3ac
[INFO] running `Command { std: "docker" "start" "-a" "26b49d96dc310e269ccbafcf156bd79f86875d67c41dad05cd6596d05f97d3ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "26b49d96dc310e269ccbafcf156bd79f86875d67c41dad05cd6596d05f97d3ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26b49d96dc310e269ccbafcf156bd79f86875d67c41dad05cd6596d05f97d3ac", kill_on_drop: false }`
[INFO] [stdout] 26b49d96dc310e269ccbafcf156bd79f86875d67c41dad05cd6596d05f97d3ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 57877d17e3a0a497a1f6c065ac749d38e3908deeb7031e17f9cb77f6cf04099c
[INFO] running `Command { std: "docker" "start" "-a" "57877d17e3a0a497a1f6c065ac749d38e3908deeb7031e17f9cb77f6cf04099c", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.107
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling ds_store v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `num_internals`
[INFO] [stdout]   --> src/allocator.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     num_internals: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `num_nodes`
[INFO] [stdout]   --> src/allocator.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     num_nodes: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `num_records`
[INFO] [stdout]   --> src/allocator.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     num_records: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.66s
[INFO] running `Command { std: "docker" "inspect" "57877d17e3a0a497a1f6c065ac749d38e3908deeb7031e17f9cb77f6cf04099c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57877d17e3a0a497a1f6c065ac749d38e3908deeb7031e17f9cb77f6cf04099c", kill_on_drop: false }`
[INFO] [stdout] 57877d17e3a0a497a1f6c065ac749d38e3908deeb7031e17f9cb77f6cf04099c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b17105c81cc9ef7ed6006b2f0527295d0b81bd42f7a66a7c2429d82ac409156e
[INFO] running `Command { std: "docker" "start" "-a" "b17105c81cc9ef7ed6006b2f0527295d0b81bd42f7a66a7c2429d82ac409156e", kill_on_drop: false }`
[INFO] [stderr]    Compiling ds_store v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `num_internals`
[INFO] [stdout]   --> src/allocator.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     num_internals: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `num_nodes`
[INFO] [stdout]   --> src/allocator.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     num_nodes: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `num_records`
[INFO] [stdout]   --> src/allocator.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     num_records: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `num_internals`
[INFO] [stdout]   --> src/allocator.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     num_internals: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `num_nodes`
[INFO] [stdout]   --> src/allocator.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     num_nodes: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `num_records`
[INFO] [stdout]   --> src/allocator.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     num_records: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `Command { std: "docker" "inspect" "b17105c81cc9ef7ed6006b2f0527295d0b81bd42f7a66a7c2429d82ac409156e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b17105c81cc9ef7ed6006b2f0527295d0b81bd42f7a66a7c2429d82ac409156e", kill_on_drop: false }`
[INFO] [stdout] b17105c81cc9ef7ed6006b2f0527295d0b81bd42f7a66a7c2429d82ac409156e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a60b88de15139fded1e35e3313060117f50d08c06fca4dba7089e9cbdcd2708f
[INFO] running `Command { std: "docker" "start" "-a" "a60b88de15139fded1e35e3313060117f50d08c06fca4dba7089e9cbdcd2708f", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `num_internals`
[INFO] [stderr]   --> src/allocator.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     num_internals: u32,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `num_nodes`
[INFO] [stderr]   --> src/allocator.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     num_nodes: u32,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `num_records`
[INFO] [stderr]   --> src/allocator.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     num_records: u32,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `ds_store` (lib) generated 3 warnings
[INFO] [stderr] warning: `ds_store` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ds_store-403d3c3d3fbc961a)
[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] [stderr]    Doc-tests ds_store
[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" "a60b88de15139fded1e35e3313060117f50d08c06fca4dba7089e9cbdcd2708f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a60b88de15139fded1e35e3313060117f50d08c06fca4dba7089e9cbdcd2708f", kill_on_drop: false }`
[INFO] [stdout] a60b88de15139fded1e35e3313060117f50d08c06fca4dba7089e9cbdcd2708f