[INFO] crate programinduction 0.7.4 is already in cache
[INFO] extracting crate programinduction 0.7.4 into work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/reg/programinduction/0.7.4
[INFO] extracting crate programinduction 0.7.4 into work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/programinduction/0.7.4
[INFO] validating manifest of programinduction-0.7.4 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 programinduction-0.7.4 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 programinduction-0.7.4
[INFO] finished frobbing programinduction-0.7.4
[INFO] frobbed toml for programinduction-0.7.4 written to work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/reg/programinduction/0.7.4/Cargo.toml
[INFO] started frobbing programinduction-0.7.4
[INFO] finished frobbing programinduction-0.7.4
[INFO] frobbed toml for programinduction-0.7.4 written to work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/programinduction/0.7.4/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 programinduction-0.7.4 against try#d3301713b54af69ca9de941a8c6b0d8287dbd6df for pr-61874
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61874/worker-4/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/programinduction/0.7.4:/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] 7ad8d16b7b37d69a86fdbb98bd467a30e12b7bd3fe377476bb2f1d7e93e24eea
[INFO] running `"docker" "start" "-a" "7ad8d16b7b37d69a86fdbb98bd467a30e12b7bd3fe377476bb2f1d7e93e24eea"`
[INFO] [stderr]     Checking polytype v6.1.1
[INFO] [stderr]     Checking term_rewriting v0.3.0
[INFO] [stderr]     Checking programinduction v0.7.4 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ec.rs:315:35
[INFO] [stderr]     |
[INFO] [stderr] 315 |     let mut timeout_complete: Box<Fn() -> bool + Send + Sync> = Box::new(|| false);
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> bool + Send + Sync`
[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/ec.rs:324:30
[INFO] [stderr]     |
[INFO] [stderr] 324 |     let mut dl_complete: Box<Fn(f64) -> bool + Send + Sync> = Box::new(|_| false);
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64) -> bool + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lambda/compression.rs:1097:22
[INFO] [stderr]      |
[INFO] [stderr] 1097 |         let rst: Box<Iterator<Item = Fragment>> = match *expr {
[INFO] [stderr]      |                      ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Fragment>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lambda/compression.rs:1110:14
[INFO] [stderr]      |
[INFO] [stderr] 1110 |     ) -> Box<Iterator<Item = Fragment> + 'a> {
[INFO] [stderr]      |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Fragment> + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lambda/compression.rs:1114:22
[INFO] [stderr]      |
[INFO] [stderr] 1114 |         let rst: Box<Iterator<Item = Fragment> + 'a> = match *expr {
[INFO] [stderr]      |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Fragment> + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lambda/enumerator.rs:131:14
[INFO] [stderr]     |
[INFO] [stderr] 131 |     cb: &mut FnMut(Expression, f64, Context) -> bool,
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Expression, f64, Context) -> bool`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lambda/enumerator.rs:167:14
[INFO] [stderr]     |
[INFO] [stderr] 167 |     cb: &mut FnMut(Expression, f64, Context) -> bool,
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Expression, f64, Context) -> bool`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lambda/enumerator.rs:324:22
[INFO] [stderr]     |
[INFO] [stderr] 324 |             cb: &mut FnMut(Expression, f64, Context) -> bool,
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Expression, f64, Context) -> bool`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lambda/mod.rs:175:52
[INFO] [stderr]     |
[INFO] [stderr] 175 |     pub fn enumerate(&self, tp: TypeSchema) -> Box<Iterator<Item = (Expression, f64)>> {
[INFO] [stderr]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = (Expression, f64)>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/pcfg/enumerator.rs:30:14
[INFO] [stderr]    |
[INFO] [stderr] 30 |     cb: &mut FnMut(AppliedRule, f64) -> bool,
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(AppliedRule, f64) -> bool`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/pcfg/enumerator.rs:61:14
[INFO] [stderr]    |
[INFO] [stderr] 61 |     cb: &mut FnMut(AppliedRule, f64) -> bool,
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(AppliedRule, f64) -> bool`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/pcfg/mod.rs:124:36
[INFO] [stderr]     |
[INFO] [stderr] 124 |     pub fn enumerate(&self) -> Box<Iterator<Item = (AppliedRule, f64)>> {
[INFO] [stderr]     |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = (AppliedRule, f64)>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/pcfg/mod.rs:131:14
[INFO] [stderr]     |
[INFO] [stderr] 131 |     ) -> Box<Iterator<Item = (AppliedRule, f64)>> {
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = (AppliedRule, f64)>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:137:21
[INFO] [stderr]     |
[INFO] [stderr] 137 |     pub oracle: Box<Fn(&R, &X) -> f64 + Send + Sync + 'a>,
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&R, &X) -> f64 + Send + Sync + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ec.rs:315:35
[INFO] [stderr]     |
[INFO] [stderr] 315 |     let mut timeout_complete: Box<Fn() -> bool + Send + Sync> = Box::new(|| false);
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> bool + Send + Sync`
[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/ec.rs:324:30
[INFO] [stderr]     |
[INFO] [stderr] 324 |     let mut dl_complete: Box<Fn(f64) -> bool + Send + Sync> = Box::new(|_| false);
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64) -> bool + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lambda/compression.rs:1097:22
[INFO] [stderr]      |
[INFO] [stderr] 1097 |         let rst: Box<Iterator<Item = Fragment>> = match *expr {
[INFO] [stderr]      |                      ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Fragment>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lambda/compression.rs:1110:14
[INFO] [stderr]      |
[INFO] [stderr] 1110 |     ) -> Box<Iterator<Item = Fragment> + 'a> {
[INFO] [stderr]      |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Fragment> + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lambda/compression.rs:1114:22
[INFO] [stderr]      |
[INFO] [stderr] 1114 |         let rst: Box<Iterator<Item = Fragment> + 'a> = match *expr {
[INFO] [stderr]      |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Fragment> + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lambda/enumerator.rs:131:14
[INFO] [stderr]     |
[INFO] [stderr] 131 |     cb: &mut FnMut(Expression, f64, Context) -> bool,
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Expression, f64, Context) -> bool`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lambda/enumerator.rs:167:14
[INFO] [stderr]     |
[INFO] [stderr] 167 |     cb: &mut FnMut(Expression, f64, Context) -> bool,
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Expression, f64, Context) -> bool`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lambda/enumerator.rs:324:22
[INFO] [stderr]     |
[INFO] [stderr] 324 |             cb: &mut FnMut(Expression, f64, Context) -> bool,
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Expression, f64, Context) -> bool`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lambda/mod.rs:175:52
[INFO] [stderr]     |
[INFO] [stderr] 175 |     pub fn enumerate(&self, tp: TypeSchema) -> Box<Iterator<Item = (Expression, f64)>> {
[INFO] [stderr]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = (Expression, f64)>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/pcfg/enumerator.rs:30:14
[INFO] [stderr]    |
[INFO] [stderr] 30 |     cb: &mut FnMut(AppliedRule, f64) -> bool,
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(AppliedRule, f64) -> bool`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/pcfg/enumerator.rs:61:14
[INFO] [stderr]    |
[INFO] [stderr] 61 |     cb: &mut FnMut(AppliedRule, f64) -> bool,
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(AppliedRule, f64) -> bool`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/pcfg/mod.rs:124:36
[INFO] [stderr]     |
[INFO] [stderr] 124 |     pub fn enumerate(&self) -> Box<Iterator<Item = (AppliedRule, f64)>> {
[INFO] [stderr]     |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = (AppliedRule, f64)>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/pcfg/mod.rs:131:14
[INFO] [stderr]     |
[INFO] [stderr] 131 |     ) -> Box<Iterator<Item = (AppliedRule, f64)>> {
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = (AppliedRule, f64)>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:137:21
[INFO] [stderr]     |
[INFO] [stderr] 137 |     pub oracle: Box<Fn(&R, &X) -> f64 + Send + Sync + 'a>,
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&R, &X) -> f64 + Send + Sync + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_left': superseded by `trim_start`
[INFO] [stderr]   --> src/lambda/parser.rs:30:17
[INFO] [stderr]    |
[INFO] [stderr] 30 |     let s = inp.trim_left();
[INFO] [stderr]    |                 ^^^^^^^^^ help: replace the use of the deprecated item: `trim_start`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_left': superseded by `trim_start`
[INFO] [stderr]   --> src/lambda/parser.rs:30:17
[INFO] [stderr]    |
[INFO] [stderr] 30 |     let s = inp.trim_left();
[INFO] [stderr]    |                 ^^^^^^^^^ help: replace the use of the deprecated item: `trim_start`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> tests/lambda.rs:70:5
[INFO] [stderr]    |
[INFO] [stderr] 70 |     /// an index never makes sense outside of an application or lambda body.
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 71 |     assert!(dsl.parse("$0").is_err());
[INFO] [stderr]    |     ---------------------------------- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_doc_comments)] on by default
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.93s
[INFO] running `"docker" "inspect" "7ad8d16b7b37d69a86fdbb98bd467a30e12b7bd3fe377476bb2f1d7e93e24eea"`
[INFO] running `"docker" "rm" "-f" "7ad8d16b7b37d69a86fdbb98bd467a30e12b7bd3fe377476bb2f1d7e93e24eea"`
[INFO] [stdout] 7ad8d16b7b37d69a86fdbb98bd467a30e12b7bd3fe377476bb2f1d7e93e24eea