[INFO] cloning repository https://github.com/AndersenTobias/lowfive
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AndersenTobias/lowfive" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAndersenTobias%2Flowfive", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAndersenTobias%2Flowfive'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bfc6bf629645baa473a8dbc38ffc4cc95841c28b
[INFO] checking AndersenTobias/lowfive against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAndersenTobias%2Flowfive" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AndersenTobias/lowfive on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/AndersenTobias/lowfive
[INFO] finished tweaking git repo https://github.com/AndersenTobias/lowfive
[INFO] tweaked toml for git repo https://github.com/AndersenTobias/lowfive written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/AndersenTobias/lowfive already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] be8b6cf7ad5a22bd5ec55c58a690e2c7ce8c4ddc579efd8bd74c29da3617ee08
[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" "be8b6cf7ad5a22bd5ec55c58a690e2c7ce8c4ddc579efd8bd74c29da3617ee08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be8b6cf7ad5a22bd5ec55c58a690e2c7ce8c4ddc579efd8bd74c29da3617ee08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be8b6cf7ad5a22bd5ec55c58a690e2c7ce8c4ddc579efd8bd74c29da3617ee08", kill_on_drop: false }`
[INFO] [stdout] be8b6cf7ad5a22bd5ec55c58a690e2c7ce8c4ddc579efd8bd74c29da3617ee08
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--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] cc6dcde77eca748d9ac9a9a54aaedce920be9e95cd2d603f38b7f2d4931cd3d0
[INFO] running `Command { std: "docker" "start" "-a" "cc6dcde77eca748d9ac9a9a54aaedce920be9e95cd2d603f38b7f2d4931cd3d0", kill_on_drop: false }`
[INFO] [stderr]     Checking simple-hdf5 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `shape`
[INFO] [stdout]   --> src/lowfive/dataset.rs:90:67
[INFO] [stdout]    |
[INFO] [stdout] 90 |         if let messages::Storage::Chunked(num_dims, btree_offset, shape) = self.layout().unwrap() {
[INFO] [stdout]    |                                                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_shape`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `shape`
[INFO] [stdout]   --> src/lowfive/dataset.rs:90:67
[INFO] [stdout]    |
[INFO] [stdout] 90 |         if let messages::Storage::Chunked(num_dims, btree_offset, shape) = self.layout().unwrap() {
[INFO] [stdout]    |                                                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_shape`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `node_type`
[INFO] [stdout]  --> src/lowfive/objects.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     node_type: u8,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `node_level`
[INFO] [stdout]  --> src/lowfive/objects.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     node_level: u8,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `left_sibling`
[INFO] [stdout]  --> src/lowfive/objects.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     left_sibling: u64,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `right_sibling`
[INFO] [stdout]  --> src/lowfive/objects.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     right_sibling: u64,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `entries_used`
[INFO] [stdout]   --> src/lowfive/objects.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     entries_used: u16,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `keys`
[INFO] [stdout]   --> src/lowfive/objects.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     keys: Vec<u64>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `node_type`
[INFO] [stdout]  --> src/lowfive/objects.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     node_type: u8,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `node_level`
[INFO] [stdout]  --> src/lowfive/objects.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     node_level: u8,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `left_sibling`
[INFO] [stdout]  --> src/lowfive/objects.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     left_sibling: u64,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `right_sibling`
[INFO] [stdout]  --> src/lowfive/objects.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     right_sibling: u64,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `entries_used`
[INFO] [stdout]   --> src/lowfive/objects.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     entries_used: u16,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `keys`
[INFO] [stdout]   --> src/lowfive/objects.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     keys: Vec<u64>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `shape`
[INFO] [stdout]   --> src/lowfive/dataset.rs:90:67
[INFO] [stdout]    |
[INFO] [stdout] 90 |         if let messages::Storage::Chunked(num_dims, btree_offset, shape) = self.layout().unwrap() {
[INFO] [stdout]    |                                                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_shape`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `shape`
[INFO] [stdout]   --> src/lowfive/dataset.rs:90:67
[INFO] [stdout]    |
[INFO] [stdout] 90 |         if let messages::Storage::Chunked(num_dims, btree_offset, shape) = self.layout().unwrap() {
[INFO] [stdout]    |                                                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_shape`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `num_dims`
[INFO] [stdout]   --> src/lowfive/dataset.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn num_dims(&self) -> Option<u8> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `node_type`
[INFO] [stdout]  --> src/lowfive/objects.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     node_type: u8,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `node_level`
[INFO] [stdout]  --> src/lowfive/objects.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     node_level: u8,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `left_sibling`
[INFO] [stdout]  --> src/lowfive/objects.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     left_sibling: u64,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `right_sibling`
[INFO] [stdout]  --> src/lowfive/objects.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     right_sibling: u64,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `entries_used`
[INFO] [stdout]   --> src/lowfive/objects.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     entries_used: u16,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `keys`
[INFO] [stdout]   --> src/lowfive/objects.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     keys: Vec<u64>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `num_dims`
[INFO] [stdout]   --> src/lowfive/dataset.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn num_dims(&self) -> Option<u8> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `node_type`
[INFO] [stdout]  --> src/lowfive/objects.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     node_type: u8,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `node_level`
[INFO] [stdout]  --> src/lowfive/objects.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     node_level: u8,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `left_sibling`
[INFO] [stdout]  --> src/lowfive/objects.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     left_sibling: u64,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `right_sibling`
[INFO] [stdout]  --> src/lowfive/objects.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     right_sibling: u64,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `entries_used`
[INFO] [stdout]   --> src/lowfive/objects.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     entries_used: u16,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `keys`
[INFO] [stdout]   --> src/lowfive/objects.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     keys: Vec<u64>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.16s
[INFO] running `Command { std: "docker" "inspect" "cc6dcde77eca748d9ac9a9a54aaedce920be9e95cd2d603f38b7f2d4931cd3d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc6dcde77eca748d9ac9a9a54aaedce920be9e95cd2d603f38b7f2d4931cd3d0", kill_on_drop: false }`
[INFO] [stdout] cc6dcde77eca748d9ac9a9a54aaedce920be9e95cd2d603f38b7f2d4931cd3d0