[INFO] fetching crate genomics 0.1.1...
[INFO] checking genomics-0.1.1 against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] extracting crate genomics 0.1.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate genomics 0.1.1 on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate genomics 0.1.1
[INFO] finished tweaking crates.io crate genomics 0.1.1
[INFO] tweaked toml for crates.io crate genomics 0.1.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7b130ca076250e660ad4164843afb6a1b62773cac6353890152f7e3bf30bad2d
[INFO] running `Command { std: "docker" "start" "-a" "7b130ca076250e660ad4164843afb6a1b62773cac6353890152f7e3bf30bad2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b130ca076250e660ad4164843afb6a1b62773cac6353890152f7e3bf30bad2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b130ca076250e660ad4164843afb6a1b62773cac6353890152f7e3bf30bad2d", kill_on_drop: false }`
[INFO] [stdout] 7b130ca076250e660ad4164843afb6a1b62773cac6353890152f7e3bf30bad2d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b88a45beb6c31970e3d6be1d7b49cdd747122e6f5e4b0cd5b3e66a9baa46b687
[INFO] running `Command { std: "docker" "start" "-a" "b88a45beb6c31970e3d6be1d7b49cdd747122e6f5e4b0cd5b3e66a9baa46b687", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling ndarray v0.13.1
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking matrixmultiply v0.2.4
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking genomics v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `idx`
[INFO] [stdout]    --> src/observable.rs:118:23
[INFO] [stdout]     |
[INFO] [stdout] 118 |                 Some((idx, Err(_))) => {
[INFO] [stdout]     |                       ^^^ help: if this is intentional, prefix it with an underscore: `_idx`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::prelude::*`
[INFO] [stdout]    --> src/observable.rs:245:9
[INFO] [stdout]     |
[INFO] [stdout] 245 |     use crate::prelude::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Locus`
[INFO] [stdout]   --> src/observable.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     Locus(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Name`
[INFO] [stdout]   --> src/observable.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     Name,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Group`
[INFO] [stdout]   --> src/observable.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     Group,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `GroupPresence`
[INFO] [stdout]   --> src/observable.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     GroupPresence(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Meta`
[INFO] [stdout]   --> src/observable.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     Meta(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/observable.rs:53:8
[INFO] [stdout]    |
[INFO] [stdout] 53 |     fn new(
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `CsvBuilder`
[INFO] [stdout]    --> src/observable.rs:128:12
[INFO] [stdout]     |
[INFO] [stdout] 128 | pub struct CsvBuilder {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/observable.rs:141:12
[INFO] [stdout]     |
[INFO] [stdout] 141 |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `headers`
[INFO] [stdout]    --> src/observable.rs:154:12
[INFO] [stdout]     |
[INFO] [stdout] 154 |     pub fn headers(&mut self, headers: bool) -> &mut Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `delimiter`
[INFO] [stdout]    --> src/observable.rs:159:12
[INFO] [stdout]     |
[INFO] [stdout] 159 |     pub fn delimiter(&mut self, delimiter: u8) -> &mut Self {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `separator`
[INFO] [stdout]    --> src/observable.rs:164:12
[INFO] [stdout]     |
[INFO] [stdout] 164 |     pub fn separator(&mut self, separator: &str) -> &mut Self {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `name_field`
[INFO] [stdout]    --> src/observable.rs:169:12
[INFO] [stdout]     |
[INFO] [stdout] 169 |     pub fn name_field(&mut self, name_field: &str) -> &mut Self {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `group_field`
[INFO] [stdout]    --> src/observable.rs:174:12
[INFO] [stdout]     |
[INFO] [stdout] 174 |     pub fn group_field(&mut self, group_field: &str) -> &mut Self {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `group_fields`
[INFO] [stdout]    --> src/observable.rs:179:12
[INFO] [stdout]     |
[INFO] [stdout] 179 |     pub fn group_fields(
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `meta_fields`
[INFO] [stdout]    --> src/observable.rs:189:12
[INFO] [stdout]     |
[INFO] [stdout] 189 |     pub fn meta_fields(&mut self, meta_fields: HashSet<String>) -> &mut Self {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_reader`
[INFO] [stdout]    --> src/observable.rs:194:12
[INFO] [stdout]     |
[INFO] [stdout] 194 |     pub fn from_reader(&self, reader: Box<dyn Read>) -> Result<Csv, Box<dyn Error>> {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `hint`
[INFO] [stdout]   --> src/lib.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 54 |     hint: LocusHint,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]   --> src/lib.rs:93:5
[INFO] [stdout]    |
[INFO] [stdout] 93 |     name: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `data`
[INFO] [stdout]    --> src/lib.rs:111:5
[INFO] [stdout]     |
[INFO] [stdout] 111 |     data: ndarray::Array2<AlleleCount>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `dirty`
[INFO] [stdout]    --> src/lib.rs:112:5
[INFO] [stdout]     |
[INFO] [stdout] 112 |     dirty: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `matrix`
[INFO] [stdout]    --> src/lib.rs:143:5
[INFO] [stdout]     |
[INFO] [stdout] 143 |     matrix: AlleleMatrix,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 22 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `idx`
[INFO] [stdout]    --> src/observable.rs:118:23
[INFO] [stdout]     |
[INFO] [stdout] 118 |                 Some((idx, Err(_))) => {
[INFO] [stdout]     |                       ^^^ help: if this is intentional, prefix it with an underscore: `_idx`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `headers`
[INFO] [stdout]    --> src/observable.rs:154:12
[INFO] [stdout]     |
[INFO] [stdout] 154 |     pub fn headers(&mut self, headers: bool) -> &mut Self {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `delimiter`
[INFO] [stdout]    --> src/observable.rs:159:12
[INFO] [stdout]     |
[INFO] [stdout] 159 |     pub fn delimiter(&mut self, delimiter: u8) -> &mut Self {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `separator`
[INFO] [stdout]    --> src/observable.rs:164:12
[INFO] [stdout]     |
[INFO] [stdout] 164 |     pub fn separator(&mut self, separator: &str) -> &mut Self {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `name_field`
[INFO] [stdout]    --> src/observable.rs:169:12
[INFO] [stdout]     |
[INFO] [stdout] 169 |     pub fn name_field(&mut self, name_field: &str) -> &mut Self {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `group_field`
[INFO] [stdout]    --> src/observable.rs:174:12
[INFO] [stdout]     |
[INFO] [stdout] 174 |     pub fn group_field(&mut self, group_field: &str) -> &mut Self {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `group_fields`
[INFO] [stdout]    --> src/observable.rs:179:12
[INFO] [stdout]     |
[INFO] [stdout] 179 |     pub fn group_fields(
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `meta_fields`
[INFO] [stdout]    --> src/observable.rs:189:12
[INFO] [stdout]     |
[INFO] [stdout] 189 |     pub fn meta_fields(&mut self, meta_fields: HashSet<String>) -> &mut Self {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `hint`
[INFO] [stdout]   --> src/lib.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 54 |     hint: LocusHint,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]   --> src/lib.rs:93:5
[INFO] [stdout]    |
[INFO] [stdout] 93 |     name: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `data`
[INFO] [stdout]    --> src/lib.rs:111:5
[INFO] [stdout]     |
[INFO] [stdout] 111 |     data: ndarray::Array2<AlleleCount>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `dirty`
[INFO] [stdout]    --> src/lib.rs:112:5
[INFO] [stdout]     |
[INFO] [stdout] 112 |     dirty: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `matrix`
[INFO] [stdout]    --> src/lib.rs:143:5
[INFO] [stdout]     |
[INFO] [stdout] 143 |     matrix: AlleleMatrix,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/observable.rs:250:9
[INFO] [stdout]     |
[INFO] [stdout] 250 | /         sample.observe(
[INFO] [stdout] 251 | |             CsvBuilder::new()
[INFO] [stdout] 252 | |             .from_reader(
[INFO] [stdout] 253 | |                 Box::new("test\n0/0".as_bytes())
[INFO] [stdout] 254 | |             )?
[INFO] [stdout] 255 | |         );
[INFO] [stdout]     | |__________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.35s
[INFO] running `Command { std: "docker" "inspect" "b88a45beb6c31970e3d6be1d7b49cdd747122e6f5e4b0cd5b3e66a9baa46b687", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b88a45beb6c31970e3d6be1d7b49cdd747122e6f5e4b0cd5b3e66a9baa46b687", kill_on_drop: false }`
[INFO] [stdout] b88a45beb6c31970e3d6be1d7b49cdd747122e6f5e4b0cd5b3e66a9baa46b687