[INFO] crate descent 0.3.0 is already in cache
[INFO] checking descent-0.3.0 against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] extracting crate descent 0.3.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate descent 0.3.0 on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate descent 0.3.0
[INFO] finished tweaking crates.io crate descent 0.3.0
[INFO] tweaked toml for crates.io crate descent 0.3.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] fa522663be7b37c981f659a051d3f17cb5424c6499a03e8ca7e5bb8dea6c08c2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "fa522663be7b37c981f659a051d3f17cb5424c6499a03e8ca7e5bb8dea6c08c2"`
[INFO] [stderr]     Checking descent v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: the item `Var` is imported redundantly
[INFO] [stderr]    --> src/expr/dynam.rs:385:13
[INFO] [stderr]     |
[INFO] [stderr] 32  | use super::{Column, Expression, Par, Retrieve, Var, ID};
[INFO] [stderr]     |                                                --- the item `Var` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 385 |         use self::Var;
[INFO] [stderr]     |             ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Par` is imported redundantly
[INFO] [stderr]    --> src/expr/dynam.rs:581:20
[INFO] [stderr]     |
[INFO] [stderr] 32  | use super::{Column, Expression, Par, Retrieve, Var, ID};
[INFO] [stderr]     |                                 --- the item `Par` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 581 |         use self::{Par, Var};
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Var` is imported redundantly
[INFO] [stderr]    --> src/expr/dynam.rs:581:25
[INFO] [stderr]     |
[INFO] [stderr] 32  | use super::{Column, Expression, Par, Retrieve, Var, ID};
[INFO] [stderr]     |                                                --- the item `Var` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 581 |         use self::{Par, Var};
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Var` is imported redundantly
[INFO] [stderr]    --> src/expr/dynam.rs:830:13
[INFO] [stderr]     |
[INFO] [stderr] 32  | use super::{Column, Expression, Par, Retrieve, Var, ID};
[INFO] [stderr]     |                                                --- the item `Var` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 830 |         use self::Var;
[INFO] [stderr]     |             ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/expr/fixed.rs:63:16
[INFO] [stderr]    |
[INFO] [stderr] 63 |     pub f: Box<Fn(&[f64], &[f64]) -> f64>,
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&[f64], &[f64]) -> f64`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/expr/fixed.rs:67:18
[INFO] [stderr]    |
[INFO] [stderr] 67 |     pub all: Box<Fn(&[f64], &[f64], &mut [f64], &mut [f64]) -> f64>,
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&[f64], &[f64], &mut [f64], &mut [f64]) -> f64`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/expr.rs:98:42
[INFO] [stderr]    |
[INFO] [stderr] 98 |     pub fn lin_iter<'a>(&'a self) -> Box<Iterator<Item = ID> + 'a> {
[INFO] [stderr]    |                                          ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = ID> + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/expr.rs:113:43
[INFO] [stderr]     |
[INFO] [stderr] 113 |     pub fn nlin_iter<'a>(&'a self) -> Box<Iterator<Item = ID> + 'a> {
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = ID> + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Var` is imported redundantly
[INFO] [stderr]    --> src/expr/dynam.rs:331:13
[INFO] [stderr]     |
[INFO] [stderr] 32  | use super::{Column, Expression, Par, Retrieve, Var, ID};
[INFO] [stderr]     |                                                --- the item `Var` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 331 |         use self::Var;
[INFO] [stderr]     |             ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Var` is imported redundantly
[INFO] [stderr]    --> src/expr/dynam.rs:385:13
[INFO] [stderr]     |
[INFO] [stderr] 32  | use super::{Column, Expression, Par, Retrieve, Var, ID};
[INFO] [stderr]     |                                                --- the item `Var` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 385 |         use self::Var;
[INFO] [stderr]     |             ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Var` is imported redundantly
[INFO] [stderr]    --> src/expr/dynam.rs:485:13
[INFO] [stderr]     |
[INFO] [stderr] 32  | use super::{Column, Expression, Par, Retrieve, Var, ID};
[INFO] [stderr]     |                                                --- the item `Var` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 485 |         use self::Var;
[INFO] [stderr]     |             ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Par` is imported redundantly
[INFO] [stderr]    --> src/expr/dynam.rs:581:20
[INFO] [stderr]     |
[INFO] [stderr] 32  | use super::{Column, Expression, Par, Retrieve, Var, ID};
[INFO] [stderr]     |                                 --- the item `Par` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 581 |         use self::{Par, Var};
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Var` is imported redundantly
[INFO] [stderr]    --> src/expr/dynam.rs:581:25
[INFO] [stderr]     |
[INFO] [stderr] 32  | use super::{Column, Expression, Par, Retrieve, Var, ID};
[INFO] [stderr]     |                                                --- the item `Var` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 581 |         use self::{Par, Var};
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Var` is imported redundantly
[INFO] [stderr]    --> src/expr/dynam.rs:830:13
[INFO] [stderr]     |
[INFO] [stderr] 32  | use super::{Column, Expression, Par, Retrieve, Var, ID};
[INFO] [stderr]     |                                                --- the item `Var` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 830 |         use self::Var;
[INFO] [stderr]     |             ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/expr/fixed.rs:63:16
[INFO] [stderr]    |
[INFO] [stderr] 63 |     pub f: Box<Fn(&[f64], &[f64]) -> f64>,
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&[f64], &[f64]) -> f64`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/expr/fixed.rs:67:18
[INFO] [stderr]    |
[INFO] [stderr] 67 |     pub all: Box<Fn(&[f64], &[f64], &mut [f64], &mut [f64]) -> f64>,
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&[f64], &[f64], &mut [f64], &mut [f64]) -> f64`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/expr.rs:98:42
[INFO] [stderr]    |
[INFO] [stderr] 98 |     pub fn lin_iter<'a>(&'a self) -> Box<Iterator<Item = ID> + 'a> {
[INFO] [stderr]    |                                          ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = ID> + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/expr.rs:113:43
[INFO] [stderr]     |
[INFO] [stderr] 113 |     pub fn nlin_iter<'a>(&'a self) -> Box<Iterator<Item = ID> + 'a> {
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = ID> + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 10 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.47s
[INFO] running `"docker" "inspect" "fa522663be7b37c981f659a051d3f17cb5424c6499a03e8ca7e5bb8dea6c08c2"`
[INFO] running `"docker" "rm" "-f" "fa522663be7b37c981f659a051d3f17cb5424c6499a03e8ca7e5bb8dea6c08c2"`
[INFO] [stdout] fa522663be7b37c981f659a051d3f17cb5424c6499a03e8ca7e5bb8dea6c08c2