[INFO] fetching crate liblbfgs 0.1.0...
[INFO] testing liblbfgs-0.1.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate liblbfgs 0.1.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate liblbfgs 0.1.0
[INFO] finished tweaking crates.io crate liblbfgs 0.1.0
[INFO] tweaked toml for crates.io crate liblbfgs 0.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate liblbfgs 0.1.0 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate liblbfgs 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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded itoa v1.0.3
[INFO] [stderr]   Downloaded ordered-float v2.10.0
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[INFO] [stderr]   Downloaded serde_derive v1.0.142
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.10
[INFO] [stderr]   Downloaded anyhow v1.0.60
[INFO] [stderr]   Downloaded serde v1.0.142
[INFO] [stderr]   Downloaded serde_json v1.0.83
[INFO] [stderr]   Downloaded plotters v0.3.2
[INFO] [stderr]   Downloaded libc v0.2.127
[INFO] [stderr]   Downloaded web-sys v0.3.59
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e1e22f1fd444299cd48dc45173bc76ad79cad63ad3cd54c56bc0f0f84af78e15
[INFO] running `Command { std: "docker" "start" "-a" "e1e22f1fd444299cd48dc45173bc76ad79cad63ad3cd54c56bc0f0f84af78e15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e1e22f1fd444299cd48dc45173bc76ad79cad63ad3cd54c56bc0f0f84af78e15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1e22f1fd444299cd48dc45173bc76ad79cad63ad3cd54c56bc0f0f84af78e15", kill_on_drop: false }`
[INFO] [stdout] e1e22f1fd444299cd48dc45173bc76ad79cad63ad3cd54c56bc0f0f84af78e15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a9b8a1254a0ba369867323e2c5493fd79740aaa0f355122585396b02fab964d9
[INFO] running `Command { std: "docker" "start" "-a" "a9b8a1254a0ba369867323e2c5493fd79740aaa0f355122585396b02fab964d9", kill_on_drop: false }`
[INFO] [stderr]    Compiling anyhow v1.0.60
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling liblbfgs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::math::*`
[INFO] [stdout]    --> src/line.rs:243:5
[INFO] [stdout]     |
[INFO] [stdout] 243 | use crate::math::*;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: private item shadows public glob re-export
[INFO] [stdout]   --> src/lib.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 72 | use crate::lbfgs::Lbfgs;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the name `Lbfgs` in the type namespace is supposed to be publicly re-exported here
[INFO] [stdout]   --> src/lib.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub use crate::lbfgs::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout] note: but the private item here shadows it
[INFO] [stdout]   --> src/lib.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 72 | use crate::lbfgs::Lbfgs;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(hidden_glob_reexports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `pf` is never read
[INFO] [stdout]    --> src/lbfgs.rs:867:5
[INFO] [stdout]     |
[INFO] [stdout] 854 | pub struct LbfgsState<'a, E>
[INFO] [stdout]     |            ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 867 |     pf: Vec<f64>,
[INFO] [stdout]     |     ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `satisfying_max_gnorm` is never used
[INFO] [stdout]     --> src/lbfgs.rs:1190:4
[INFO] [stdout]      |
[INFO] [stdout] 1190 | fn satisfying_max_gnorm(prgr: &Progress, max_gnorm: f64) -> bool {
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `satisfying_delta` is never used
[INFO] [stdout]     --> src/lbfgs.rs:1206:4
[INFO] [stdout]      |
[INFO] [stdout] 1206 | fn satisfying_delta<'a>(prgr: &Progress, pf: &'a mut [f64], delta: f64) -> bool {
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lbfgs.rs:946:22
[INFO] [stdout]     |
[INFO] [stdout] 946 |     pub fn propagate(&mut self) -> Result<Progress> {
[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] 946 |     pub fn propagate(&mut self) -> Result<Progress<'_>> {
[INFO] [stdout]     |                                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lbfgs.rs:997:21
[INFO] [stdout]     |
[INFO] [stdout] 997 |     fn get_progress(&self) -> Progress {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 997 |     fn get_progress(&self) -> Progress<'_> {
[INFO] [stdout]     |                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.46s
[INFO] running `Command { std: "docker" "inspect" "a9b8a1254a0ba369867323e2c5493fd79740aaa0f355122585396b02fab964d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9b8a1254a0ba369867323e2c5493fd79740aaa0f355122585396b02fab964d9", kill_on_drop: false }`
[INFO] [stdout] a9b8a1254a0ba369867323e2c5493fd79740aaa0f355122585396b02fab964d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e0e4e9d6b5e1a0b4a80f098e51d87937f0f2dcf7883227927cd55ec5b2f59808
[INFO] running `Command { std: "docker" "start" "-a" "e0e4e9d6b5e1a0b4a80f098e51d87937f0f2dcf7883227927cd55ec5b2f59808", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.11
[INFO] [stderr]    Compiling serde v1.0.142
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling once_cell v1.13.0
[INFO] [stderr]    Compiling libc v0.2.127
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.10
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling rayon-core v1.9.3
[INFO] [stderr]    Compiling ryu v1.0.11
[INFO] [stderr]    Compiling either v1.7.0
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling serde_json v1.0.83
[INFO] [stderr]    Compiling rayon v1.5.3
[INFO] [stderr]    Compiling plotters-backend v0.3.4
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling serde_derive v1.0.142
[INFO] [stderr]    Compiling itoa v1.0.3
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling regex-syntax v0.6.27
[INFO] [stderr]    Compiling oorandom v11.1.3
[INFO] [stdout] warning: unused import: `crate::math::*`
[INFO] [stdout]    --> src/line.rs:243:5
[INFO] [stdout]     |
[INFO] [stdout] 243 | use crate::math::*;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: private item shadows public glob re-export
[INFO] [stdout]   --> src/lib.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 72 | use crate::lbfgs::Lbfgs;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the name `Lbfgs` in the type namespace is supposed to be publicly re-exported here
[INFO] [stdout]   --> src/lib.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub use crate::lbfgs::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout] note: but the private item here shadows it
[INFO] [stdout]   --> src/lib.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 72 | use crate::lbfgs::Lbfgs;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(hidden_glob_reexports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `pf` is never read
[INFO] [stdout]    --> src/lbfgs.rs:867:5
[INFO] [stdout]     |
[INFO] [stdout] 854 | pub struct LbfgsState<'a, E>
[INFO] [stdout]     |            ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 867 |     pf: Vec<f64>,
[INFO] [stdout]     |     ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `satisfying_max_gnorm` is never used
[INFO] [stdout]     --> src/lbfgs.rs:1190:4
[INFO] [stdout]      |
[INFO] [stdout] 1190 | fn satisfying_max_gnorm(prgr: &Progress, max_gnorm: f64) -> bool {
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `satisfying_delta` is never used
[INFO] [stdout]     --> src/lbfgs.rs:1206:4
[INFO] [stdout]      |
[INFO] [stdout] 1206 | fn satisfying_delta<'a>(prgr: &Progress, pf: &'a mut [f64], delta: f64) -> bool {
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lbfgs.rs:946:22
[INFO] [stdout]     |
[INFO] [stdout] 946 |     pub fn propagate(&mut self) -> Result<Progress> {
[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] 946 |     pub fn propagate(&mut self) -> Result<Progress<'_>> {
[INFO] [stdout]     |                                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lbfgs.rs:997:21
[INFO] [stdout]     |
[INFO] [stdout] 997 |     fn get_progress(&self) -> Progress {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 997 |     fn get_progress(&self) -> Progress<'_> {
[INFO] [stdout]     |                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling itertools v0.10.3
[INFO] [stderr]    Compiling plotters-svg v0.3.2
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.6
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling crossbeam-deque v0.8.2
[INFO] [stderr]    Compiling regex v1.6.0
[INFO] [stderr]    Compiling approx v0.5.1
[INFO] [stderr]    Compiling plotters v0.3.2
[INFO] [stderr]    Compiling ordered-float v2.10.0
[INFO] [stderr]    Compiling criterion-plot v0.4.5
[INFO] [stderr]    Compiling vecfx v0.1.5
[INFO] [stderr]    Compiling bstr v0.2.17
[INFO] [stderr]    Compiling serde_cbor v0.11.2
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling criterion v0.3.6
[INFO] [stderr]    Compiling liblbfgs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Progress`
[INFO] [stdout]   --> tests/rosenbrock.rs:25:63
[INFO] [stdout]    |
[INFO] [stdout] 25 |     use liblbfgs::{default_evaluate, default_progress, lbfgs, Progress};
[INFO] [stdout]    |                                                               ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::math::*`
[INFO] [stdout]    --> src/line.rs:243:5
[INFO] [stdout]     |
[INFO] [stdout] 243 | use crate::math::*;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: private item shadows public glob re-export
[INFO] [stdout]   --> src/lib.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 72 | use crate::lbfgs::Lbfgs;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the name `Lbfgs` in the type namespace is supposed to be publicly re-exported here
[INFO] [stdout]   --> src/lib.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub use crate::lbfgs::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout] note: but the private item here shadows it
[INFO] [stdout]   --> src/lib.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 72 | use crate::lbfgs::Lbfgs;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(hidden_glob_reexports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Progress`
[INFO] [stdout]   --> examples/lj.rs:68:27
[INFO] [stdout]    |
[INFO] [stdout] 68 |     use liblbfgs::{lbfgs, Progress};
[INFO] [stdout]    |                           ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/lj.rs:69:9
[INFO] [stdout]    |
[INFO] [stdout] 69 |     let mut lj = LennardJones::default();
[INFO] [stdout]    |         ----^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> examples/lj.rs:112:5
[INFO] [stdout]     |
[INFO] [stdout] 112 | /     lbfgs().minimize(
[INFO] [stdout] 113 | |         &mut positions,
[INFO] [stdout] 114 | |         |x: &[f64], gx: &mut [f64]| {
[INFO] [stdout] 115 | |             let energy = lj.evaluate(x.as_3d(), gx.as_mut_3d());
[INFO] [stdout] ...   |
[INFO] [stdout] 127 | |         },
[INFO] [stdout] 128 | |     );
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 112 |     let _ = lbfgs().minimize(
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `pf` is never read
[INFO] [stdout]    --> src/lbfgs.rs:867:5
[INFO] [stdout]     |
[INFO] [stdout] 854 | pub struct LbfgsState<'a, E>
[INFO] [stdout]     |            ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 867 |     pf: Vec<f64>,
[INFO] [stdout]     |     ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `satisfying_max_gnorm` is never used
[INFO] [stdout]     --> src/lbfgs.rs:1190:4
[INFO] [stdout]      |
[INFO] [stdout] 1190 | fn satisfying_max_gnorm(prgr: &Progress, max_gnorm: f64) -> bool {
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `satisfying_delta` is never used
[INFO] [stdout]     --> src/lbfgs.rs:1206:4
[INFO] [stdout]      |
[INFO] [stdout] 1206 | fn satisfying_delta<'a>(prgr: &Progress, pf: &'a mut [f64], delta: f64) -> bool {
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lbfgs.rs:946:22
[INFO] [stdout]     |
[INFO] [stdout] 946 |     pub fn propagate(&mut self) -> Result<Progress> {
[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] 946 |     pub fn propagate(&mut self) -> Result<Progress<'_>> {
[INFO] [stdout]     |                                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lbfgs.rs:997:21
[INFO] [stdout]     |
[INFO] [stdout] 997 |     fn get_progress(&self) -> Progress {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 997 |     fn get_progress(&self) -> Progress<'_> {
[INFO] [stdout]     |                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 23.24s
[INFO] running `Command { std: "docker" "inspect" "e0e4e9d6b5e1a0b4a80f098e51d87937f0f2dcf7883227927cd55ec5b2f59808", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0e4e9d6b5e1a0b4a80f098e51d87937f0f2dcf7883227927cd55ec5b2f59808", kill_on_drop: false }`
[INFO] [stdout] e0e4e9d6b5e1a0b4a80f098e51d87937f0f2dcf7883227927cd55ec5b2f59808
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1dc924daf5643d698eb750a1db2e03bf713339945a7d88995f0546dfa6b78310
[INFO] running `Command { std: "docker" "start" "-a" "1dc924daf5643d698eb750a1db2e03bf713339945a7d88995f0546dfa6b78310", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `crate::math::*`
[INFO] [stderr]    --> src/line.rs:243:5
[INFO] [stderr]     |
[INFO] [stderr] 243 | use crate::math::*;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: private item shadows public glob re-export
[INFO] [stderr]   --> src/lib.rs:72:5
[INFO] [stderr]    |
[INFO] [stderr] 72 | use crate::lbfgs::Lbfgs;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: the name `Lbfgs` in the type namespace is supposed to be publicly re-exported here
[INFO] [stderr]   --> src/lib.rs:63:9
[INFO] [stderr]    |
[INFO] [stderr] 63 | pub use crate::lbfgs::*;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^
[INFO] [stderr] note: but the private item here shadows it
[INFO] [stderr]   --> src/lib.rs:72:5
[INFO] [stderr]    |
[INFO] [stderr] 72 | use crate::lbfgs::Lbfgs;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    = note: `#[warn(hidden_glob_reexports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `pf` is never read
[INFO] [stderr]    --> src/lbfgs.rs:867:5
[INFO] [stderr]     |
[INFO] [stderr] 854 | pub struct LbfgsState<'a, E>
[INFO] [stderr]     |            ---------- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 867 |     pf: Vec<f64>,
[INFO] [stderr]     |     ^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `satisfying_max_gnorm` is never used
[INFO] [stderr]     --> src/lbfgs.rs:1190:4
[INFO] [stderr]      |
[INFO] [stderr] 1190 | fn satisfying_max_gnorm(prgr: &Progress, max_gnorm: f64) -> bool {
[INFO] [stderr]      |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `satisfying_delta` is never used
[INFO] [stderr]     --> src/lbfgs.rs:1206:4
[INFO] [stderr]      |
[INFO] [stderr] 1206 | fn satisfying_delta<'a>(prgr: &Progress, pf: &'a mut [f64], delta: f64) -> bool {
[INFO] [stderr]      |    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/lbfgs.rs:946:22
[INFO] [stderr]     |
[INFO] [stderr] 946 |     pub fn propagate(&mut self) -> Result<Progress> {
[INFO] [stderr]     |                      ^^^^^^^^^            ^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                      |
[INFO] [stderr]     |                      the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 946 |     pub fn propagate(&mut self) -> Result<Progress<'_>> {
[INFO] [stderr]     |                                                   ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/lbfgs.rs:997:21
[INFO] [stderr]     |
[INFO] [stderr] 997 |     fn get_progress(&self) -> Progress {
[INFO] [stderr]     |                     ^^^^^     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 997 |     fn get_progress(&self) -> Progress<'_> {
[INFO] [stderr]     |                                       ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `liblbfgs` (lib) generated 7 warnings (run `cargo fix --lib -p liblbfgs` to apply 3 suggestions)
[INFO] [stderr] warning: unused import: `Progress`
[INFO] [stderr]   --> examples/lj.rs:68:27
[INFO] [stderr]    |
[INFO] [stderr] 68 |     use liblbfgs::{lbfgs, Progress};
[INFO] [stderr]    |                           ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> examples/lj.rs:69:9
[INFO] [stderr]    |
[INFO] [stderr] 69 |     let mut lj = LennardJones::default();
[INFO] [stderr]    |         ----^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> examples/lj.rs:112:5
[INFO] [stderr]     |
[INFO] [stderr] 112 | /     lbfgs().minimize(
[INFO] [stderr] 113 | |         &mut positions,
[INFO] [stderr] 114 | |         |x: &[f64], gx: &mut [f64]| {
[INFO] [stderr] 115 | |             let energy = lj.evaluate(x.as_3d(), gx.as_mut_3d());
[INFO] [stderr] ...   |
[INFO] [stderr] 127 | |         },
[INFO] [stderr] 128 | |     );
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 112 |     let _ = lbfgs().minimize(
[INFO] [stderr]     |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Progress`
[INFO] [stderr]   --> tests/rosenbrock.rs:25:63
[INFO] [stderr]    |
[INFO] [stderr] 25 |     use liblbfgs::{default_evaluate, default_progress, lbfgs, Progress};
[INFO] [stderr]    |                                                               ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `liblbfgs` (example "lj") generated 3 warnings (run `cargo fix --example "lj" -p liblbfgs` to apply 2 suggestions)
[INFO] [stderr] warning: `liblbfgs` (lib test) generated 7 warnings (7 duplicates)
[INFO] [stderr] warning: `liblbfgs` (test "rosenbrock") generated 1 warning (run `cargo fix --test "rosenbrock" -p liblbfgs` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/liblbfgs-362bfc3976f443ba)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test math::test_lbfgs_math ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/rosenbrock.rs (/opt/rustwide/target/debug/deps/rosenbrock-0864f58a43a80b77)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_lbfgs ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests liblbfgs
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/line.rs - line (line 10) ... ok
[INFO] [stdout] test src/lib.rs - (line 12) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.68s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1dc924daf5643d698eb750a1db2e03bf713339945a7d88995f0546dfa6b78310", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1dc924daf5643d698eb750a1db2e03bf713339945a7d88995f0546dfa6b78310", kill_on_drop: false }`
[INFO] [stdout] 1dc924daf5643d698eb750a1db2e03bf713339945a7d88995f0546dfa6b78310
