[INFO] fetching crate algeo 0.1.0...
[INFO] checking algeo-0.1.0 against master#82310651b93a594a3fd69015e1562186a080d94c for pr-145770
[INFO] extracting crate algeo 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate algeo 0.1.0
[INFO] finished tweaking crates.io crate algeo 0.1.0
[INFO] tweaked toml for crates.io crate algeo 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate algeo 0.1.0 on toolchain 82310651b93a594a3fd69015e1562186a080d94c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate algeo 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded darling_macro v0.13.0
[INFO] [stderr]   Downloaded xops_macros v0.1.0
[INFO] [stderr]   Downloaded xops v0.1.0
[INFO] [stderr]   Downloaded darling v0.13.0
[INFO] [stderr]   Downloaded xops_core v0.1.0
[INFO] [stderr]   Downloaded darling_core v0.13.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fbf354ad149e65caea8992070594d49b3985df75a0242f796539a528fc690ba6
[INFO] running `Command { std: "docker" "start" "-a" "fbf354ad149e65caea8992070594d49b3985df75a0242f796539a528fc690ba6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fbf354ad149e65caea8992070594d49b3985df75a0242f796539a528fc690ba6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbf354ad149e65caea8992070594d49b3985df75a0242f796539a528fc690ba6", kill_on_drop: false }`
[INFO] [stdout] fbf354ad149e65caea8992070594d49b3985df75a0242f796539a528fc690ba6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 59e53f1adce105ad2b76a95d316a1b001552fd5d39cf0e1a986dcff87ee8b37c
[INFO] running `Command { std: "docker" "start" "-a" "59e53f1adce105ad2b76a95d316a1b001552fd5d39cf0e1a986dcff87ee8b37c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling darling_core v0.13.0
[INFO] [stderr]    Compiling darling_macro v0.13.0
[INFO] [stderr]    Compiling darling v0.13.0
[INFO] [stderr]    Compiling xops_core v0.1.0
[INFO] [stderr]    Compiling xops_macros v0.1.0
[INFO] [stderr]     Checking xops v0.1.0
[INFO] [stderr]     Checking algeo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/linalg/util.rs:12:25
[INFO] [stdout]    |
[INFO] [stdout] 12 |     (0..rows).map(move |r| ((0..cols).map(move |c| (r,c) ) ) ).flatten()
[INFO] [stdout]    |                            ^                              ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 12 -     (0..rows).map(move |r| ((0..cols).map(move |c| (r,c) ) ) ).flatten()
[INFO] [stdout] 12 +     (0..rows).map(move |r| (0..cols).map(move |c| (r,c) ) ).flatten()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/linalg/util.rs:26:64
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub fn num_to_seq(n: usize, base: usize) -> impl Iterator<Item=(usize)> {
[INFO] [stdout]    |                                                                ^     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 26 - pub fn num_to_seq(n: usize, base: usize) -> impl Iterator<Item=(usize)> {
[INFO] [stdout] 26 + pub fn num_to_seq(n: usize, base: usize) -> impl Iterator<Item=usize> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/linalg/util.rs:12:25
[INFO] [stdout]    |
[INFO] [stdout] 12 |     (0..rows).map(move |r| ((0..cols).map(move |c| (r,c) ) ) ).flatten()
[INFO] [stdout]    |                            ^                              ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 12 -     (0..rows).map(move |r| ((0..cols).map(move |c| (r,c) ) ) ).flatten()
[INFO] [stdout] 12 +     (0..rows).map(move |r| (0..cols).map(move |c| (r,c) ) ).flatten()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/linalg/util.rs:26:64
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub fn num_to_seq(n: usize, base: usize) -> impl Iterator<Item=(usize)> {
[INFO] [stdout]    |                                                                ^     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 26 - pub fn num_to_seq(n: usize, base: usize) -> impl Iterator<Item=(usize)> {
[INFO] [stdout] 26 + pub fn num_to_seq(n: usize, base: usize) -> impl Iterator<Item=usize> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/linalg/cone.rs:53:8
[INFO] [stdout]    |
[INFO] [stdout] 53 |             let mut subset_kernel = subset_rref.compute_kernel();
[INFO] [stdout]    |                 ----^^^^^^^^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `generators`, `facets`, `orth_comp_basis`, `ambient_dim`, and `dim` are never read
[INFO] [stdout]   --> src/linalg/cone.rs:10:2
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct Cone<F: Field> {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] 10 |     generators: Vec<Mat<F>>,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 11 |     facets: Vec<Face<F>>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 12 |     orth_comp_basis: Vec<Mat<F>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 13 |
[INFO] [stdout] 14 |     ambient_dim: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 15 |     dim: usize,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `normal` and `generators` are never read
[INFO] [stdout]   --> src/linalg/cone.rs:19:2
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct Face<F: Field> {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] 19 |     normal: Mat<F>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 20 |     generators: Vec<Mat<F>>
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/linalg/algorithm.rs:233:21
[INFO] [stdout]     |
[INFO] [stdout] 233 |     pub fn row_echelon(&self) -> RowEchelonForm<F> {
[INFO] [stdout]     |                        ^^^^^     ----------------- the same lifetime is hidden here
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 233 |     pub fn row_echelon(&self) -> RowEchelonForm<'_, F> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/linalg/cone.rs:53:8
[INFO] [stdout]    |
[INFO] [stdout] 53 |             let mut subset_kernel = subset_rref.compute_kernel();
[INFO] [stdout]    |                 ----^^^^^^^^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `generators`, `facets`, `orth_comp_basis`, `ambient_dim`, and `dim` are never read
[INFO] [stdout]   --> src/linalg/cone.rs:10:2
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct Cone<F: Field> {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] 10 |     generators: Vec<Mat<F>>,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 11 |     facets: Vec<Face<F>>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 12 |     orth_comp_basis: Vec<Mat<F>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 13 |
[INFO] [stdout] 14 |     ambient_dim: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 15 |     dim: usize,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `normal` and `generators` are never read
[INFO] [stdout]   --> src/linalg/cone.rs:19:2
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct Face<F: Field> {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] 19 |     normal: Mat<F>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 20 |     generators: Vec<Mat<F>>
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/linalg/algorithm.rs:233:21
[INFO] [stdout]     |
[INFO] [stdout] 233 |     pub fn row_echelon(&self) -> RowEchelonForm<F> {
[INFO] [stdout]     |                        ^^^^^     ----------------- the same lifetime is hidden here
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 233 |     pub fn row_echelon(&self) -> RowEchelonForm<'_, F> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.75s
[INFO] running `Command { std: "docker" "inspect" "59e53f1adce105ad2b76a95d316a1b001552fd5d39cf0e1a986dcff87ee8b37c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59e53f1adce105ad2b76a95d316a1b001552fd5d39cf0e1a986dcff87ee8b37c", kill_on_drop: false }`
[INFO] [stdout] 59e53f1adce105ad2b76a95d316a1b001552fd5d39cf0e1a986dcff87ee8b37c
