[INFO] fetching crate descent 0.3.0...
[INFO] extracting crate descent 0.3.0 into work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/reg/descent/0.3.0
[INFO] extracting crate descent 0.3.0 into work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/descent/0.3.0
[INFO] validating manifest of descent-0.3.0 on toolchain master#9f06855064ed06a50c496577b21ca50f92a2e67d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of descent-0.3.0 on toolchain try#d3301713b54af69ca9de941a8c6b0d8287dbd6df
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing descent-0.3.0
[INFO] finished frobbing descent-0.3.0
[INFO] frobbed toml for descent-0.3.0 written to work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/reg/descent/0.3.0/Cargo.toml
[INFO] started frobbing descent-0.3.0
[INFO] finished frobbing descent-0.3.0
[INFO] frobbed toml for descent-0.3.0 written to work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/descent/0.3.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking descent-0.3.0 against try#d3301713b54af69ca9de941a8c6b0d8287dbd6df for pr-61874
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61874/worker-6/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/descent/0.3.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 5dba0d79a0fbdf8eb835376617867bf1859c7fd3f4d3658aab7bedce54ce5d5f
[INFO] running `"docker" "start" "-a" "5dba0d79a0fbdf8eb835376617867bf1859c7fd3f4d3658aab7bedce54ce5d5f"`
[INFO] [stderr]     Checking descent v0.3.0 (/opt/crater/workdir)
[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: 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]     Finished dev [unoptimized + debuginfo] target(s) in 1.28s
[INFO] running `"docker" "inspect" "5dba0d79a0fbdf8eb835376617867bf1859c7fd3f4d3658aab7bedce54ce5d5f"`
[INFO] running `"docker" "rm" "-f" "5dba0d79a0fbdf8eb835376617867bf1859c7fd3f4d3658aab7bedce54ce5d5f"`
[INFO] [stdout] 5dba0d79a0fbdf8eb835376617867bf1859c7fd3f4d3658aab7bedce54ce5d5f