[INFO] crate rvs 0.4.1 is already in cache
[INFO] extracting crate rvs 0.4.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/rvs/0.4.1
[INFO] extracting crate rvs 0.4.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rvs/0.4.1
[INFO] validating manifest of rvs-0.4.1 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of rvs-0.4.1 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing rvs-0.4.1
[INFO] finished frobbing rvs-0.4.1
[INFO] frobbed toml for rvs-0.4.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/rvs/0.4.1/Cargo.toml
[INFO] started frobbing rvs-0.4.1
[INFO] finished frobbing rvs-0.4.1
[INFO] frobbed toml for rvs-0.4.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rvs/0.4.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing rvs-0.4.1 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/rvs/0.4.1:/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=warn" "-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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 2dee4084c52e1efe0222e49681134cfee36c78e85a50a675ef9666a983bc1dea
[INFO] running `"docker" "start" "-a" "2dee4084c52e1efe0222e49681134cfee36c78e85a50a675ef9666a983bc1dea"`
[INFO] [stderr]    Compiling rvs-parser v0.4.0
[INFO] [stderr]    Compiling rvs v0.4.1 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:31:32
[INFO] [stderr]    |
[INFO] [stderr] 31 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[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/error.rs:78:32
[INFO] [stderr]    |
[INFO] [stderr] 78 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/transform/transform.rs:114:30
[INFO] [stderr]     |
[INFO] [stderr] 114 |     ) -> TransformResult<Box<Expr>> {
[INFO] [stderr]     |                              ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/transform/transform.rs:168:30
[INFO] [stderr]     |
[INFO] [stderr] 168 |     ) -> TransformResult<Box<Expr>> {
[INFO] [stderr]     |                              ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/transform/transform.rs:191:34
[INFO] [stderr]     |
[INFO] [stderr] 191 |     ) -> TransformResult<Vec<Box<Expr>>> {
[INFO] [stderr]     |                                  ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/transform/transform.rs:192:36
[INFO] [stderr]     |
[INFO] [stderr] 192 |         let mut arg_exprs: Vec<Box<Expr>> = Vec::new();
[INFO] [stderr]     |                                    ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/transform/transform.rs:206:30
[INFO] [stderr]     |
[INFO] [stderr] 206 |     ) -> TransformResult<Box<Expr>> {
[INFO] [stderr]     |                              ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/transform/transform.rs:208:35
[INFO] [stderr]     |
[INFO] [stderr] 208 |         let mut children: Vec<Box<Expr>> = Vec::new();
[INFO] [stderr]     |                                   ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/transform/transform.rs:256:30
[INFO] [stderr]     |
[INFO] [stderr] 256 |     ) -> TransformResult<Box<Expr>> {
[INFO] [stderr]     |                              ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/model/expr.rs:38:32
[INFO] [stderr]    |
[INFO] [stderr] 38 |     fn clone_box(&self) -> Box<Expr>;
[INFO] [stderr]    |                                ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/model/expr.rs:45:32
[INFO] [stderr]    |
[INFO] [stderr] 45 |     fn clone_box(&self) -> Box<Expr> {
[INFO] [stderr]    |                                ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/model/expr.rs:50:20
[INFO] [stderr]    |
[INFO] [stderr] 50 | impl Clone for Box<Expr> {
[INFO] [stderr]    |                    ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/model/expr.rs:51:28
[INFO] [stderr]    |
[INFO] [stderr] 51 |     fn clone(&self) -> Box<Expr> {
[INFO] [stderr]    |                            ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/model/variable.rs:9:15
[INFO] [stderr]   |
[INFO] [stderr] 9 |     expr: Box<Expr>,
[INFO] [stderr]   |               ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/model/variable.rs:17:26
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn new(expr: Box<Expr>, rng: CrateRng) -> Variable {
[INFO] [stderr]    |                          ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/model/variable.rs:21:37
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn clone_expr(&self) -> Box<Expr> {
[INFO] [stderr]    |                                     ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/types/operation.rs:12:20
[INFO] [stderr]    |
[INFO] [stderr] 12 |     operands: (Box<Expr>, Box<Expr>),
[INFO] [stderr]    |                    ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/types/operation.rs:12:31
[INFO] [stderr]    |
[INFO] [stderr] 12 |     operands: (Box<Expr>, Box<Expr>),
[INFO] [stderr]    |                               ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/types/operation.rs:20:18
[INFO] [stderr]    |
[INFO] [stderr] 20 |     operand: Box<Expr>,
[INFO] [stderr]    |                  ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/types/operation.rs:24:23
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub fn new(l: Box<Expr>, operation: ast::BinaryOpcode, r: Box<Expr>) -> Binary {
[INFO] [stderr]    |                       ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/types/operation.rs:24:67
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub fn new(l: Box<Expr>, operation: ast::BinaryOpcode, r: Box<Expr>) -> Binary {
[INFO] [stderr]    |                                                                   ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/types/operation.rs:77:58
[INFO] [stderr]    |
[INFO] [stderr] 77 |     pub fn new(operation: ast::UnaryOpcode, operand: Box<Expr>) -> Unary {
[INFO] [stderr]    |                                                          ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/types/pattern.rs:9:23
[INFO] [stderr]   |
[INFO] [stderr] 9 |     children: Vec<Box<Expr>>,
[INFO] [stderr]   |                       ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/types/pattern.rs:14:34
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub fn new(children: Vec<Box<Expr>>) -> Pattern {
[INFO] [stderr]    |                                  ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/types/sequence.rs:12:16
[INFO] [stderr]    |
[INFO] [stderr] 12 |     first: Box<Expr>,
[INFO] [stderr]    |                ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/types/sequence.rs:13:15
[INFO] [stderr]    |
[INFO] [stderr] 13 |     last: Box<Expr>,
[INFO] [stderr]    |               ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/types/sequence.rs:14:20
[INFO] [stderr]    |
[INFO] [stderr] 14 |     increment: Box<Expr>,
[INFO] [stderr]    |                    ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/types/sequence.rs:23:34
[INFO] [stderr]    |
[INFO] [stderr] 23 |     pub fn new(mut args: Vec<Box<Expr>>, rng: &mut CrateRng) -> Sequence {
[INFO] [stderr]    |                                  ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/types/sequence.rs:26:44
[INFO] [stderr]    |
[INFO] [stderr] 26 |         let (first, last, increment): (Box<Expr>, Box<Expr>, Box<Expr>) = match len {
[INFO] [stderr]    |                                            ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/types/sequence.rs:26:55
[INFO] [stderr]    |
[INFO] [stderr] 26 |         let (first, last, increment): (Box<Expr>, Box<Expr>, Box<Expr>) = match len {
[INFO] [stderr]    |                                                       ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/types/sequence.rs:26:66
[INFO] [stderr]    |
[INFO] [stderr] 26 |         let (first, last, increment): (Box<Expr>, Box<Expr>, Box<Expr>) = match len {
[INFO] [stderr]    |                                                                  ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/types/weighted.rs:12:23
[INFO] [stderr]    |
[INFO] [stderr] 12 |     children: Vec<Box<Expr>>,
[INFO] [stderr]    |                       ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/types/weighted.rs:19:53
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub fn new(weights: Vec<u32>, children: Vec<Box<Expr>>) -> WeightedWithReplacement {
[INFO] [stderr]    |                                                     ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/types/weighted.rs:71:23
[INFO] [stderr]    |
[INFO] [stderr] 71 |     children: Vec<Box<Expr>>,
[INFO] [stderr]    |                       ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/types/weighted.rs:79:27
[INFO] [stderr]    |
[INFO] [stderr] 79 |         children: Vec<Box<Expr>>,
[INFO] [stderr]    |                           ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/types/done.rs:9:15
[INFO] [stderr]   |
[INFO] [stderr] 9 |     expr: Box<Expr>,
[INFO] [stderr]   |               ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/types/done.rs:13:26
[INFO] [stderr]    |
[INFO] [stderr] 13 |     pub fn new(expr: Box<Expr>) -> Done {
[INFO] [stderr]    |                          ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/types/once.rs:9:15
[INFO] [stderr]   |
[INFO] [stderr] 9 |     expr: Box<Expr>,
[INFO] [stderr]   |               ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/types/once.rs:13:26
[INFO] [stderr]    |
[INFO] [stderr] 13 |     pub fn new(expr: Box<Expr>) -> Once {
[INFO] [stderr]    |                          ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.03s
[INFO] running `"docker" "inspect" "2dee4084c52e1efe0222e49681134cfee36c78e85a50a675ef9666a983bc1dea"`
[INFO] running `"docker" "rm" "-f" "2dee4084c52e1efe0222e49681134cfee36c78e85a50a675ef9666a983bc1dea"`
[INFO] [stdout] 2dee4084c52e1efe0222e49681134cfee36c78e85a50a675ef9666a983bc1dea
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/rvs/0.4.1:/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=warn" "-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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 1e59610b3670a4957e067f0500f07f0884c4f120da2007dc54d6a8f59005c1f9
[INFO] running `"docker" "start" "-a" "1e59610b3670a4957e067f0500f07f0884c4f120da2007dc54d6a8f59005c1f9"`
[INFO] [stderr]    Compiling rvs v0.4.1 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:31:32
[INFO] [stderr]    |
[INFO] [stderr] 31 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[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/error.rs:78:32
[INFO] [stderr]    |
[INFO] [stderr] 78 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/transform/transform.rs:114:30
[INFO] [stderr]     |
[INFO] [stderr] 114 |     ) -> TransformResult<Box<Expr>> {
[INFO] [stderr]     |                              ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/transform/transform.rs:168:30
[INFO] [stderr]     |
[INFO] [stderr] 168 |     ) -> TransformResult<Box<Expr>> {
[INFO] [stderr]     |                              ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/transform/transform.rs:191:34
[INFO] [stderr]     |
[INFO] [stderr] 191 |     ) -> TransformResult<Vec<Box<Expr>>> {
[INFO] [stderr]     |                                  ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/transform/transform.rs:192:36
[INFO] [stderr]     |
[INFO] [stderr] 192 |         let mut arg_exprs: Vec<Box<Expr>> = Vec::new();
[INFO] [stderr]     |                                    ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/transform/transform.rs:206:30
[INFO] [stderr]     |
[INFO] [stderr] 206 |     ) -> TransformResult<Box<Expr>> {
[INFO] [stderr]     |                              ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/transform/transform.rs:208:35
[INFO] [stderr]     |
[INFO] [stderr] 208 |         let mut children: Vec<Box<Expr>> = Vec::new();
[INFO] [stderr]     |                                   ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/transform/transform.rs:256:30
[INFO] [stderr]     |
[INFO] [stderr] 256 |     ) -> TransformResult<Box<Expr>> {
[INFO] [stderr]     |                              ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/model/expr.rs:38:32
[INFO] [stderr]    |
[INFO] [stderr] 38 |     fn clone_box(&self) -> Box<Expr>;
[INFO] [stderr]    |                                ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/model/expr.rs:45:32
[INFO] [stderr]    |
[INFO] [stderr] 45 |     fn clone_box(&self) -> Box<Expr> {
[INFO] [stderr]    |                                ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/model/expr.rs:50:20
[INFO] [stderr]    |
[INFO] [stderr] 50 | impl Clone for Box<Expr> {
[INFO] [stderr]    |                    ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/model/expr.rs:51:28
[INFO] [stderr]    |
[INFO] [stderr] 51 |     fn clone(&self) -> Box<Expr> {
[INFO] [stderr]    |                            ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/model/variable.rs:9:15
[INFO] [stderr]   |
[INFO] [stderr] 9 |     expr: Box<Expr>,
[INFO] [stderr]   |               ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/model/variable.rs:17:26
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn new(expr: Box<Expr>, rng: CrateRng) -> Variable {
[INFO] [stderr]    |                          ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/model/variable.rs:21:37
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn clone_expr(&self) -> Box<Expr> {
[INFO] [stderr]    |                                     ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/types/operation.rs:12:20
[INFO] [stderr]    |
[INFO] [stderr] 12 |     operands: (Box<Expr>, Box<Expr>),
[INFO] [stderr]    |                    ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/types/operation.rs:12:31
[INFO] [stderr]    |
[INFO] [stderr] 12 |     operands: (Box<Expr>, Box<Expr>),
[INFO] [stderr]    |                               ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/types/operation.rs:20:18
[INFO] [stderr]    |
[INFO] [stderr] 20 |     operand: Box<Expr>,
[INFO] [stderr]    |                  ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/types/operation.rs:24:23
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub fn new(l: Box<Expr>, operation: ast::BinaryOpcode, r: Box<Expr>) -> Binary {
[INFO] [stderr]    |                       ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/types/operation.rs:24:67
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub fn new(l: Box<Expr>, operation: ast::BinaryOpcode, r: Box<Expr>) -> Binary {
[INFO] [stderr]    |                                                                   ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/types/operation.rs:77:58
[INFO] [stderr]    |
[INFO] [stderr] 77 |     pub fn new(operation: ast::UnaryOpcode, operand: Box<Expr>) -> Unary {
[INFO] [stderr]    |                                                          ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/types/pattern.rs:9:23
[INFO] [stderr]   |
[INFO] [stderr] 9 |     children: Vec<Box<Expr>>,
[INFO] [stderr]   |                       ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/types/pattern.rs:14:34
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub fn new(children: Vec<Box<Expr>>) -> Pattern {
[INFO] [stderr]    |                                  ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/types/sequence.rs:12:16
[INFO] [stderr]    |
[INFO] [stderr] 12 |     first: Box<Expr>,
[INFO] [stderr]    |                ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/types/sequence.rs:13:15
[INFO] [stderr]    |
[INFO] [stderr] 13 |     last: Box<Expr>,
[INFO] [stderr]    |               ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/types/sequence.rs:14:20
[INFO] [stderr]    |
[INFO] [stderr] 14 |     increment: Box<Expr>,
[INFO] [stderr]    |                    ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/types/sequence.rs:23:34
[INFO] [stderr]    |
[INFO] [stderr] 23 |     pub fn new(mut args: Vec<Box<Expr>>, rng: &mut CrateRng) -> Sequence {
[INFO] [stderr]    |                                  ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/types/sequence.rs:26:44
[INFO] [stderr]    |
[INFO] [stderr] 26 |         let (first, last, increment): (Box<Expr>, Box<Expr>, Box<Expr>) = match len {
[INFO] [stderr]    |                                            ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/types/sequence.rs:26:55
[INFO] [stderr]    |
[INFO] [stderr] 26 |         let (first, last, increment): (Box<Expr>, Box<Expr>, Box<Expr>) = match len {
[INFO] [stderr]    |                                                       ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/types/sequence.rs:26:66
[INFO] [stderr]    |
[INFO] [stderr] 26 |         let (first, last, increment): (Box<Expr>, Box<Expr>, Box<Expr>) = match len {
[INFO] [stderr]    |                                                                  ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/types/weighted.rs:12:23
[INFO] [stderr]    |
[INFO] [stderr] 12 |     children: Vec<Box<Expr>>,
[INFO] [stderr]    |                       ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/types/weighted.rs:19:53
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub fn new(weights: Vec<u32>, children: Vec<Box<Expr>>) -> WeightedWithReplacement {
[INFO] [stderr]    |                                                     ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/types/weighted.rs:71:23
[INFO] [stderr]    |
[INFO] [stderr] 71 |     children: Vec<Box<Expr>>,
[INFO] [stderr]    |                       ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/types/weighted.rs:79:27
[INFO] [stderr]    |
[INFO] [stderr] 79 |         children: Vec<Box<Expr>>,
[INFO] [stderr]    |                           ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/types/done.rs:9:15
[INFO] [stderr]   |
[INFO] [stderr] 9 |     expr: Box<Expr>,
[INFO] [stderr]   |               ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/types/done.rs:13:26
[INFO] [stderr]    |
[INFO] [stderr] 13 |     pub fn new(expr: Box<Expr>) -> Done {
[INFO] [stderr]    |                          ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/types/once.rs:9:15
[INFO] [stderr]   |
[INFO] [stderr] 9 |     expr: Box<Expr>,
[INFO] [stderr]   |               ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/types/once.rs:13:26
[INFO] [stderr]    |
[INFO] [stderr] 13 |     pub fn new(expr: Box<Expr>) -> Once {
[INFO] [stderr]    |                          ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.79s
[INFO] running `"docker" "inspect" "1e59610b3670a4957e067f0500f07f0884c4f120da2007dc54d6a8f59005c1f9"`
[INFO] running `"docker" "rm" "-f" "1e59610b3670a4957e067f0500f07f0884c4f120da2007dc54d6a8f59005c1f9"`
[INFO] [stdout] 1e59610b3670a4957e067f0500f07f0884c4f120da2007dc54d6a8f59005c1f9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/rvs/0.4.1:/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=warn" "-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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 8b64a9704daec542faee02d55b60315fad0a3311358f1fffeafe3fb63773a17e
[INFO] running `"docker" "start" "-a" "8b64a9704daec542faee02d55b60315fad0a3311358f1fffeafe3fb63773a17e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rvs-fec855a30d92d048
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test types::range::tests::range::full_range ... ignored
[INFO] [stdout] test types::range::tests::range::basic ... ok
[INFO] [stdout] test types::range::tests::range::max_max ... ok
[INFO] [stdout] test types::weighted::tests::test_populate_pool ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/display-f14002d6a5528673
[INFO] [stdout] running 2 tests
[INFO] [stdout] test multiple ... ok
[INFO] [stdout] test precendence ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/done-a61076ff840ca110
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test always_done ... ok
[INFO] [stdout] test done_causes_advance_to_next_subexpr ... ok
[INFO] [stdout] test done_defaults_to_false ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/lazyness-71a26d75a6f28eca
[INFO] [stderr]      Running /opt/crater/target/debug/deps/once-3a8ffc30466e7341
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test type_arguments ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test done_defaults_to_false ... ok
[INFO] [stdout] test yields_constant_value_and_always_done ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test overflow_shl ... ok
[INFO] [stdout] test overflow_neg ... ok
[INFO] [stdout] test overflow_add ... ok
[INFO] [stderr]      Running /opt/crater/target/debug/deps/operations-c72b5b9eca6963d0
[INFO] [stdout] test overflow_mul ... ok
[INFO] [stdout] test overflow_sub ... ok
[INFO] [stdout] test yields_sum ... ok
[INFO] [stdout] test overflow_shr ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test basic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/parse-d0b64a6b8dbb8e00
[INFO] [stderr]      Running /opt/crater/target/debug/deps/pattern-9d380bbf2bc0292c
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test selects_another_subexpr_when_current_subexpr_done ... ok
[INFO] [stdout] test yields_a_repeating_pattern ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/range-bec7a3b05d1c43b2
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test done_after_each_next ... ok
[INFO] [stdout] test equal_limits ... ok
[INFO] [stdout] test reverse_limits ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test readme ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test basic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/readme-bec8cd57c2c6f6d6
[INFO] [stderr]      Running /opt/crater/target/debug/deps/repl-3cf3d64db86bedbc
[INFO] [stderr]      Running /opt/crater/target/debug/deps/sample_with_replacement-f05e17ef1e61fc17
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test selects_another_subexpr_when_current_subexpr_done ... ok
[INFO] [stdout] test done_when_sub_expr_done ... ok
[INFO] [stdout] test basic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stderr]      Running /opt/crater/target/debug/deps/sample_without_replacement-0cee0ef0eecbff73
[INFO] [stdout] test yields_each_value_once_per_cycle ... ok
[INFO] [stdout] test done_when_all_done2 ... ok
[INFO] [stdout] test selects_another_subexpr_when_current_subexpr_done ... ok
[INFO] [stdout] test done_when_all_done ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/sequence-79ee4451043887c4
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test increment_skips_last ... ok
[INFO] [stdout] test first_last_increment ... ok
[INFO] [stdout] test first_last ... ok
[INFO] [stdout] test args_evaluated_every_cycle ... ok
[INFO] [stdout] test zero_last ... ok
[INFO] [stdout] test last ... ok
[INFO] [stdout] test negative_increment_skips_last ... ok
[INFO] [stdout] test decrement ... ok
[INFO] [stdout] test zero_increment ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/variables_in_expressions-0e72401ddd76c5e7
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stderr]      Running /opt/crater/target/debug/deps/weighted_sample_with_replacement-6f23039cc69f6744
[INFO] [stdout] test copy ... ok
[INFO] [stdout] test next_done ... ok
[INFO] [stdout] test next_pattern ... ok
[INFO] [stdout] test prev ... ok
[INFO] [stdout] test copy_pattern ... ok
[INFO] [stdout] test next ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test done_when_sub_expr_done ... ok
[INFO] [stdout] test distribution ... ok
[INFO] [stderr]      Running /opt/crater/target/debug/deps/weighted_sample_without_replacement-cabebe4ced7326b6
[INFO] [stdout] test selects_another_subexpr_when_current_subexpr_done ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test distribution ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rvs
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "8b64a9704daec542faee02d55b60315fad0a3311358f1fffeafe3fb63773a17e"`
[INFO] running `"docker" "rm" "-f" "8b64a9704daec542faee02d55b60315fad0a3311358f1fffeafe3fb63773a17e"`
[INFO] [stdout] 8b64a9704daec542faee02d55b60315fad0a3311358f1fffeafe3fb63773a17e