[INFO] updating cached repository shimomura1004/rust_playground
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/shimomura1004/rust_playground
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/shimomura1004/rust_playground" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/shimomura1004/rust_playground"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/shimomura1004/rust_playground'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/shimomura1004/rust_playground" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/shimomura1004/rust_playground"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/shimomura1004/rust_playground'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b960e16272527c7c77000e863057e32b37c49b22
[INFO] sha for GitHub repo shimomura1004/rust_playground: b960e16272527c7c77000e863057e32b37c49b22
[INFO] validating manifest of shimomura1004/rust_playground on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of shimomura1004/rust_playground on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing shimomura1004/rust_playground
[INFO] finished frobbing shimomura1004/rust_playground
[INFO] frobbed toml for shimomura1004/rust_playground written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/shimomura1004/rust_playground/Cargo.toml
[INFO] started frobbing shimomura1004/rust_playground
[INFO] finished frobbing shimomura1004/rust_playground
[INFO] frobbed toml for shimomura1004/rust_playground written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/shimomura1004/rust_playground/Cargo.toml
[INFO] crate shimomura1004/rust_playground already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking shimomura1004/rust_playground against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-5/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/shimomura1004/rust_playground:/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" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] feefa7f16b23bafd0280013177ebf54edfba3ef29aa10df24fb043e77de2b05f
[INFO] running `"docker" "start" "-a" "feefa7f16b23bafd0280013177ebf54edfba3ef29aa10df24fb043e77de2b05f"`
[INFO] [stderr]     Checking stackmachine v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/parser/combinator.rs:8:23
[INFO] [stderr]   |
[INFO] [stderr] 8 | type ParserB<T> = Box<Parser<T>>;
[INFO] [stderr]   |                       ^^^^^^^^^ help: use `dyn`: `dyn Parser<T>`
[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/parser/combinator.rs:27:33
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub fn new(c : char) -> Box<Parser<char>> {
[INFO] [stderr]    |                                 ^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<char>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/combinator.rs:62:35
[INFO] [stderr]    |
[INFO] [stderr] 62 |     pub fn new(str : &str) -> Box<Parser<String>> {
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<String>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/combinator.rs:87:24
[INFO] [stderr]    |
[INFO] [stderr] 87 |     pub fn new(p : Box<Parser<T>>) -> Box<Parser<Vec<T>>> {
[INFO] [stderr]    |                        ^^^^^^^^^ help: use `dyn`: `dyn Parser<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/combinator.rs:87:43
[INFO] [stderr]    |
[INFO] [stderr] 87 |     pub fn new(p : Box<Parser<T>>) -> Box<Parser<Vec<T>>> {
[INFO] [stderr]    |                                           ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<Vec<T>>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:112:24
[INFO] [stderr]     |
[INFO] [stderr] 112 |     pub fn new(p : Box<Parser<T>>) -> Box<Parser<()>> {
[INFO] [stderr]     |                        ^^^^^^^^^ help: use `dyn`: `dyn Parser<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:112:43
[INFO] [stderr]     |
[INFO] [stderr] 112 |     pub fn new(p : Box<Parser<T>>) -> Box<Parser<()>> {
[INFO] [stderr]     |                                           ^^^^^^^^^^ help: use `dyn`: `dyn Parser<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:127:24
[INFO] [stderr]     |
[INFO] [stderr] 127 |     pub fn new(p : Box<Parser<T>>) -> Box<Parser<Vec<T>>> {
[INFO] [stderr]     |                        ^^^^^^^^^ help: use `dyn`: `dyn Parser<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:127:43
[INFO] [stderr]     |
[INFO] [stderr] 127 |     pub fn new(p : Box<Parser<T>>) -> Box<Parser<Vec<T>>> {
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<Vec<T>>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:151:29
[INFO] [stderr]     |
[INFO] [stderr] 151 |     pub fn new(ps : Vec<Box<Parser<T>>>) -> Box<Parser<T>> {
[INFO] [stderr]     |                             ^^^^^^^^^ help: use `dyn`: `dyn Parser<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:151:49
[INFO] [stderr]     |
[INFO] [stderr] 151 |     pub fn new(ps : Vec<Box<Parser<T>>>) -> Box<Parser<T>> {
[INFO] [stderr]     |                                                 ^^^^^^^^^ help: use `dyn`: `dyn Parser<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:175:18
[INFO] [stderr]     |
[INFO] [stderr] 175 |     pub p1 : Box<Parser<T1>>,
[INFO] [stderr]     |                  ^^^^^^^^^^ help: use `dyn`: `dyn Parser<T1>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:176:18
[INFO] [stderr]     |
[INFO] [stderr] 176 |     pub p2 : Box<Parser<T2>>,
[INFO] [stderr]     |                  ^^^^^^^^^^ help: use `dyn`: `dyn Parser<T2>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:179:24
[INFO] [stderr]     |
[INFO] [stderr] 179 |     pub fn new(p1: Box<Parser<T1>>, p2: Box<Parser<T2>>) -> Box<Parser<T2>> {
[INFO] [stderr]     |                        ^^^^^^^^^^ help: use `dyn`: `dyn Parser<T1>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:179:45
[INFO] [stderr]     |
[INFO] [stderr] 179 |     pub fn new(p1: Box<Parser<T1>>, p2: Box<Parser<T2>>) -> Box<Parser<T2>> {
[INFO] [stderr]     |                                             ^^^^^^^^^^ help: use `dyn`: `dyn Parser<T2>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:179:65
[INFO] [stderr]     |
[INFO] [stderr] 179 |     pub fn new(p1: Box<Parser<T1>>, p2: Box<Parser<T2>>) -> Box<Parser<T2>> {
[INFO] [stderr]     |                                                                 ^^^^^^^^^^ help: use `dyn`: `dyn Parser<T2>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:191:16
[INFO] [stderr]     |
[INFO] [stderr] 191 |     pub p: Box<Parser<char>>,
[INFO] [stderr]     |                ^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<char>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:194:36
[INFO] [stderr]     |
[INFO] [stderr] 194 |     pub fn new(chars: &str) -> Box<Parser<char>> {
[INFO] [stderr]     |                                    ^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<char>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:209:16
[INFO] [stderr]     |
[INFO] [stderr] 209 |     pub p: Box<Parser<Vec<char>>>,
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<Vec<char>>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:212:25
[INFO] [stderr]     |
[INFO] [stderr] 212 |     pub fn new() -> Box<Parser<i32>> {
[INFO] [stderr]     |                         ^^^^^^^^^^^ help: use `dyn`: `dyn Parser<i32>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:225:16
[INFO] [stderr]     |
[INFO] [stderr] 225 |     pub p: Box<Parser<char>>,
[INFO] [stderr]     |                ^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<char>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:228:25
[INFO] [stderr]     |
[INFO] [stderr] 228 |     pub fn new() -> Box<Parser<char>> {
[INFO] [stderr]     |                         ^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<char>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:253:16
[INFO] [stderr]     |
[INFO] [stderr] 253 |     pub p: Box<Parser<char>>,
[INFO] [stderr]     |                ^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<char>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:256:25
[INFO] [stderr]     |
[INFO] [stderr] 256 |     pub fn new() -> Box<Parser<char>> {
[INFO] [stderr]     |                         ^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<char>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:267:16
[INFO] [stderr]     |
[INFO] [stderr] 267 |     pub p: Box<Parser<()>>,
[INFO] [stderr]     |                ^^^^^^^^^^ help: use `dyn`: `dyn Parser<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:270:25
[INFO] [stderr]     |
[INFO] [stderr] 270 |     pub fn new() -> Box<Parser<()>> {
[INFO] [stderr]     |                         ^^^^^^^^^^ help: use `dyn`: `dyn Parser<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:281:21
[INFO] [stderr]     |
[INFO] [stderr] 281 |     pub left_p: Box<Parser<T1>>,
[INFO] [stderr]     |                     ^^^^^^^^^^ help: use `dyn`: `dyn Parser<T1>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:282:20
[INFO] [stderr]     |
[INFO] [stderr] 282 |     pub mid_p: Box<Parser<T2>>,
[INFO] [stderr]     |                    ^^^^^^^^^^ help: use `dyn`: `dyn Parser<T2>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:283:22
[INFO] [stderr]     |
[INFO] [stderr] 283 |     pub right_p: Box<Parser<T3>>,
[INFO] [stderr]     |                      ^^^^^^^^^^ help: use `dyn`: `dyn Parser<T3>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:286:29
[INFO] [stderr]     |
[INFO] [stderr] 286 |     pub fn new(left_p : Box<Parser<T1>>, mid_p: Box<Parser<T2>>, right_p: Box<Parser<T3>>) -> Box<Parser<T2>> {
[INFO] [stderr]     |                             ^^^^^^^^^^ help: use `dyn`: `dyn Parser<T1>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:286:53
[INFO] [stderr]     |
[INFO] [stderr] 286 |     pub fn new(left_p : Box<Parser<T1>>, mid_p: Box<Parser<T2>>, right_p: Box<Parser<T3>>) -> Box<Parser<T2>> {
[INFO] [stderr]     |                                                     ^^^^^^^^^^ help: use `dyn`: `dyn Parser<T2>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:286:79
[INFO] [stderr]     |
[INFO] [stderr] 286 |     pub fn new(left_p : Box<Parser<T1>>, mid_p: Box<Parser<T2>>, right_p: Box<Parser<T3>>) -> Box<Parser<T2>> {
[INFO] [stderr]     |                                                                               ^^^^^^^^^^ help: use `dyn`: `dyn Parser<T3>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:286:99
[INFO] [stderr]     |
[INFO] [stderr] 286 |     pub fn new(left_p : Box<Parser<T1>>, mid_p: Box<Parser<T2>>, right_p: Box<Parser<T3>>) -> Box<Parser<T2>> {
[INFO] [stderr]     |                                                                                                   ^^^^^^^^^^ help: use `dyn`: `dyn Parser<T2>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:301:25
[INFO] [stderr]     |
[INFO] [stderr] 301 |     pub fn new() -> Box<Parser<()>> {
[INFO] [stderr]     |                         ^^^^^^^^^^ help: use `dyn`: `dyn Parser<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:322:16
[INFO] [stderr]     |
[INFO] [stderr] 322 |     pub p: Box<Parser<T1>>,
[INFO] [stderr]     |                ^^^^^^^^^^ help: use `dyn`: `dyn Parser<T1>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:323:18
[INFO] [stderr]     |
[INFO] [stderr] 323 |     pub sep: Box<Parser<T2>>,
[INFO] [stderr]     |                  ^^^^^^^^^^ help: use `dyn`: `dyn Parser<T2>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:326:24
[INFO] [stderr]     |
[INFO] [stderr] 326 |     pub fn new(p : Box<Parser<T1>>, sep : Box<Parser<T2>>) -> Box<Parser<Vec<T1>>> {
[INFO] [stderr]     |                        ^^^^^^^^^^ help: use `dyn`: `dyn Parser<T1>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:326:47
[INFO] [stderr]     |
[INFO] [stderr] 326 |     pub fn new(p : Box<Parser<T1>>, sep : Box<Parser<T2>>) -> Box<Parser<Vec<T1>>> {
[INFO] [stderr]     |                                               ^^^^^^^^^^ help: use `dyn`: `dyn Parser<T2>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:326:67
[INFO] [stderr]     |
[INFO] [stderr] 326 |     pub fn new(p : Box<Parser<T1>>, sep : Box<Parser<T2>>) -> Box<Parser<Vec<T1>>> {
[INFO] [stderr]     |                                                                   ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<Vec<T1>>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/parser/mod.rs:8:25
[INFO] [stderr]   |
[INFO] [stderr] 8 |     pub fn new() -> Box<Parser<syntax::Term>> {
[INFO] [stderr]   |                         ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<syntax::Term>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/mod.rs:22:25
[INFO] [stderr]    |
[INFO] [stderr] 22 |     pub fn new() -> Box<Parser<syntax::Term>> {
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<syntax::Term>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/mod.rs:59:25
[INFO] [stderr]    |
[INFO] [stderr] 59 |     pub fn new() -> Box<Parser<syntax::Term>> {
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<syntax::Term>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/mod.rs:79:25
[INFO] [stderr]    |
[INFO] [stderr] 79 |     pub fn new() -> Box<Parser<syntax::Term>> {
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<syntax::Term>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/mod.rs:96:26
[INFO] [stderr]    |
[INFO] [stderr] 96 |     pub fn new () -> Box<Parser<syntax::Term>> {
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<syntax::Term>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/mod.rs:123:25
[INFO] [stderr]     |
[INFO] [stderr] 123 |     pub fn new() -> Box<Parser<syntax::Term>> {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<syntax::Term>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/mod.rs:141:25
[INFO] [stderr]     |
[INFO] [stderr] 141 |     pub fn new() -> Box<Parser<syntax::Exp5>> {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<syntax::Exp5>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/mod.rs:157:25
[INFO] [stderr]     |
[INFO] [stderr] 157 |     pub fn new() -> Box<Parser<syntax::Exp5>> {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<syntax::Exp5>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/mod.rs:169:25
[INFO] [stderr]     |
[INFO] [stderr] 169 |     pub fn new() -> Box<Parser<syntax::Exp5>> {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<syntax::Exp5>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/mod.rs:184:25
[INFO] [stderr]     |
[INFO] [stderr] 184 |     pub fn new() -> Box<Parser<syntax::Exp4>> {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<syntax::Exp4>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/mod.rs:200:25
[INFO] [stderr]     |
[INFO] [stderr] 200 |     pub fn new() -> Box<Parser<syntax::Exp3>> {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<syntax::Exp3>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/mod.rs:218:25
[INFO] [stderr]     |
[INFO] [stderr] 218 |     pub fn new() -> Box<Parser<syntax::Exp3>> {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<syntax::Exp3>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/mod.rs:236:25
[INFO] [stderr]     |
[INFO] [stderr] 236 |     pub fn new() -> Box<Parser<syntax::Exp3>> {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<syntax::Exp3>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/mod.rs:248:25
[INFO] [stderr]     |
[INFO] [stderr] 248 |     pub fn new() -> Box<Parser<syntax::Exp3>> {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<syntax::Exp3>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/mod.rs:264:25
[INFO] [stderr]     |
[INFO] [stderr] 264 |     pub fn new() -> Box<Parser<syntax::Exp2>> {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<syntax::Exp2>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/mod.rs:280:25
[INFO] [stderr]     |
[INFO] [stderr] 280 |     pub fn new() -> Box<Parser<syntax::Exp1>> {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<syntax::Exp1>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/mod.rs:296:25
[INFO] [stderr]     |
[INFO] [stderr] 296 |     pub fn new() -> Box<Parser<syntax::Exp1>> {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<syntax::Exp1>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/mod.rs:312:25
[INFO] [stderr]     |
[INFO] [stderr] 312 |     pub fn new() -> Box<Parser<syntax::Exp1>> {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<syntax::Exp1>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/mod.rs:324:25
[INFO] [stderr]     |
[INFO] [stderr] 324 |     pub fn new() -> Box<Parser<syntax::Exp1>> {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<syntax::Exp1>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/mod.rs:340:25
[INFO] [stderr]     |
[INFO] [stderr] 340 |     pub fn new() -> Box<Parser<syntax::Exp>> {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<syntax::Exp>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/mod.rs:357:25
[INFO] [stderr]     |
[INFO] [stderr] 357 |     pub fn new() -> Box<Parser<syntax::Statement>> {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<syntax::Statement>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/mod.rs:371:25
[INFO] [stderr]     |
[INFO] [stderr] 371 |     pub fn new() -> Box<Parser<syntax::Statement>> {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<syntax::Statement>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/mod.rs:391:25
[INFO] [stderr]     |
[INFO] [stderr] 391 |     pub fn new() -> Box<Parser<syntax::Statement>> {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<syntax::Statement>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/mod.rs:409:25
[INFO] [stderr]     |
[INFO] [stderr] 409 |     pub fn new() -> Box<Parser<syntax::Block>> {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<syntax::Block>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/mod.rs:423:25
[INFO] [stderr]     |
[INFO] [stderr] 423 |     pub fn new() -> Box<Parser<syntax::Block>> {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<syntax::Block>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/mod.rs:442:25
[INFO] [stderr]     |
[INFO] [stderr] 442 |     pub fn new() -> Box<Parser<syntax::Block>> {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<syntax::Block>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/parser/combinator.rs:8:23
[INFO] [stderr]   |
[INFO] [stderr] 8 | type ParserB<T> = Box<Parser<T>>;
[INFO] [stderr]   |                       ^^^^^^^^^ help: use `dyn`: `dyn Parser<T>`
[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/parser/combinator.rs:27:33
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub fn new(c : char) -> Box<Parser<char>> {
[INFO] [stderr]    |                                 ^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<char>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/combinator.rs:62:35
[INFO] [stderr]    |
[INFO] [stderr] 62 |     pub fn new(str : &str) -> Box<Parser<String>> {
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<String>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/combinator.rs:87:24
[INFO] [stderr]    |
[INFO] [stderr] 87 |     pub fn new(p : Box<Parser<T>>) -> Box<Parser<Vec<T>>> {
[INFO] [stderr]    |                        ^^^^^^^^^ help: use `dyn`: `dyn Parser<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/combinator.rs:87:43
[INFO] [stderr]    |
[INFO] [stderr] 87 |     pub fn new(p : Box<Parser<T>>) -> Box<Parser<Vec<T>>> {
[INFO] [stderr]    |                                           ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<Vec<T>>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:112:24
[INFO] [stderr]     |
[INFO] [stderr] 112 |     pub fn new(p : Box<Parser<T>>) -> Box<Parser<()>> {
[INFO] [stderr]     |                        ^^^^^^^^^ help: use `dyn`: `dyn Parser<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:112:43
[INFO] [stderr]     |
[INFO] [stderr] 112 |     pub fn new(p : Box<Parser<T>>) -> Box<Parser<()>> {
[INFO] [stderr]     |                                           ^^^^^^^^^^ help: use `dyn`: `dyn Parser<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:127:24
[INFO] [stderr]     |
[INFO] [stderr] 127 |     pub fn new(p : Box<Parser<T>>) -> Box<Parser<Vec<T>>> {
[INFO] [stderr]     |                        ^^^^^^^^^ help: use `dyn`: `dyn Parser<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:127:43
[INFO] [stderr]     |
[INFO] [stderr] 127 |     pub fn new(p : Box<Parser<T>>) -> Box<Parser<Vec<T>>> {
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<Vec<T>>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:151:29
[INFO] [stderr]     |
[INFO] [stderr] 151 |     pub fn new(ps : Vec<Box<Parser<T>>>) -> Box<Parser<T>> {
[INFO] [stderr]     |                             ^^^^^^^^^ help: use `dyn`: `dyn Parser<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:151:49
[INFO] [stderr]     |
[INFO] [stderr] 151 |     pub fn new(ps : Vec<Box<Parser<T>>>) -> Box<Parser<T>> {
[INFO] [stderr]     |                                                 ^^^^^^^^^ help: use `dyn`: `dyn Parser<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:175:18
[INFO] [stderr]     |
[INFO] [stderr] 175 |     pub p1 : Box<Parser<T1>>,
[INFO] [stderr]     |                  ^^^^^^^^^^ help: use `dyn`: `dyn Parser<T1>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:176:18
[INFO] [stderr]     |
[INFO] [stderr] 176 |     pub p2 : Box<Parser<T2>>,
[INFO] [stderr]     |                  ^^^^^^^^^^ help: use `dyn`: `dyn Parser<T2>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:179:24
[INFO] [stderr]     |
[INFO] [stderr] 179 |     pub fn new(p1: Box<Parser<T1>>, p2: Box<Parser<T2>>) -> Box<Parser<T2>> {
[INFO] [stderr]     |                        ^^^^^^^^^^ help: use `dyn`: `dyn Parser<T1>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:179:45
[INFO] [stderr]     |
[INFO] [stderr] 179 |     pub fn new(p1: Box<Parser<T1>>, p2: Box<Parser<T2>>) -> Box<Parser<T2>> {
[INFO] [stderr]     |                                             ^^^^^^^^^^ help: use `dyn`: `dyn Parser<T2>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:179:65
[INFO] [stderr]     |
[INFO] [stderr] 179 |     pub fn new(p1: Box<Parser<T1>>, p2: Box<Parser<T2>>) -> Box<Parser<T2>> {
[INFO] [stderr]     |                                                                 ^^^^^^^^^^ help: use `dyn`: `dyn Parser<T2>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:191:16
[INFO] [stderr]     |
[INFO] [stderr] 191 |     pub p: Box<Parser<char>>,
[INFO] [stderr]     |                ^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<char>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:194:36
[INFO] [stderr]     |
[INFO] [stderr] 194 |     pub fn new(chars: &str) -> Box<Parser<char>> {
[INFO] [stderr]     |                                    ^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<char>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:209:16
[INFO] [stderr]     |
[INFO] [stderr] 209 |     pub p: Box<Parser<Vec<char>>>,
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<Vec<char>>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:212:25
[INFO] [stderr]     |
[INFO] [stderr] 212 |     pub fn new() -> Box<Parser<i32>> {
[INFO] [stderr]     |                         ^^^^^^^^^^^ help: use `dyn`: `dyn Parser<i32>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:225:16
[INFO] [stderr]     |
[INFO] [stderr] 225 |     pub p: Box<Parser<char>>,
[INFO] [stderr]     |                ^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<char>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:228:25
[INFO] [stderr]     |
[INFO] [stderr] 228 |     pub fn new() -> Box<Parser<char>> {
[INFO] [stderr]     |                         ^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<char>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:253:16
[INFO] [stderr]     |
[INFO] [stderr] 253 |     pub p: Box<Parser<char>>,
[INFO] [stderr]     |                ^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<char>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:256:25
[INFO] [stderr]     |
[INFO] [stderr] 256 |     pub fn new() -> Box<Parser<char>> {
[INFO] [stderr]     |                         ^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<char>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:267:16
[INFO] [stderr]     |
[INFO] [stderr] 267 |     pub p: Box<Parser<()>>,
[INFO] [stderr]     |                ^^^^^^^^^^ help: use `dyn`: `dyn Parser<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:270:25
[INFO] [stderr]     |
[INFO] [stderr] 270 |     pub fn new() -> Box<Parser<()>> {
[INFO] [stderr]     |                         ^^^^^^^^^^ help: use `dyn`: `dyn Parser<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:281:21
[INFO] [stderr]     |
[INFO] [stderr] 281 |     pub left_p: Box<Parser<T1>>,
[INFO] [stderr]     |                     ^^^^^^^^^^ help: use `dyn`: `dyn Parser<T1>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:282:20
[INFO] [stderr]     |
[INFO] [stderr] 282 |     pub mid_p: Box<Parser<T2>>,
[INFO] [stderr]     |                    ^^^^^^^^^^ help: use `dyn`: `dyn Parser<T2>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:283:22
[INFO] [stderr]     |
[INFO] [stderr] 283 |     pub right_p: Box<Parser<T3>>,
[INFO] [stderr]     |                      ^^^^^^^^^^ help: use `dyn`: `dyn Parser<T3>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:286:29
[INFO] [stderr]     |
[INFO] [stderr] 286 |     pub fn new(left_p : Box<Parser<T1>>, mid_p: Box<Parser<T2>>, right_p: Box<Parser<T3>>) -> Box<Parser<T2>> {
[INFO] [stderr]     |                             ^^^^^^^^^^ help: use `dyn`: `dyn Parser<T1>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:286:53
[INFO] [stderr]     |
[INFO] [stderr] 286 |     pub fn new(left_p : Box<Parser<T1>>, mid_p: Box<Parser<T2>>, right_p: Box<Parser<T3>>) -> Box<Parser<T2>> {
[INFO] [stderr]     |                                                     ^^^^^^^^^^ help: use `dyn`: `dyn Parser<T2>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:286:79
[INFO] [stderr]     |
[INFO] [stderr] 286 |     pub fn new(left_p : Box<Parser<T1>>, mid_p: Box<Parser<T2>>, right_p: Box<Parser<T3>>) -> Box<Parser<T2>> {
[INFO] [stderr]     |                                                                               ^^^^^^^^^^ help: use `dyn`: `dyn Parser<T3>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:286:99
[INFO] [stderr]     |
[INFO] [stderr] 286 |     pub fn new(left_p : Box<Parser<T1>>, mid_p: Box<Parser<T2>>, right_p: Box<Parser<T3>>) -> Box<Parser<T2>> {
[INFO] [stderr]     |                                                                                                   ^^^^^^^^^^ help: use `dyn`: `dyn Parser<T2>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:301:25
[INFO] [stderr]     |
[INFO] [stderr] 301 |     pub fn new() -> Box<Parser<()>> {
[INFO] [stderr]     |                         ^^^^^^^^^^ help: use `dyn`: `dyn Parser<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:322:16
[INFO] [stderr]     |
[INFO] [stderr] 322 |     pub p: Box<Parser<T1>>,
[INFO] [stderr]     |                ^^^^^^^^^^ help: use `dyn`: `dyn Parser<T1>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:323:18
[INFO] [stderr]     |
[INFO] [stderr] 323 |     pub sep: Box<Parser<T2>>,
[INFO] [stderr]     |                  ^^^^^^^^^^ help: use `dyn`: `dyn Parser<T2>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:326:24
[INFO] [stderr]     |
[INFO] [stderr] 326 |     pub fn new(p : Box<Parser<T1>>, sep : Box<Parser<T2>>) -> Box<Parser<Vec<T1>>> {
[INFO] [stderr]     |                        ^^^^^^^^^^ help: use `dyn`: `dyn Parser<T1>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:326:47
[INFO] [stderr]     |
[INFO] [stderr] 326 |     pub fn new(p : Box<Parser<T1>>, sep : Box<Parser<T2>>) -> Box<Parser<Vec<T1>>> {
[INFO] [stderr]     |                                               ^^^^^^^^^^ help: use `dyn`: `dyn Parser<T2>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/combinator.rs:326:67
[INFO] [stderr]     |
[INFO] [stderr] 326 |     pub fn new(p : Box<Parser<T1>>, sep : Box<Parser<T2>>) -> Box<Parser<Vec<T1>>> {
[INFO] [stderr]     |                                                                   ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<Vec<T1>>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/parser/mod.rs:8:25
[INFO] [stderr]   |
[INFO] [stderr] 8 |     pub fn new() -> Box<Parser<syntax::Term>> {
[INFO] [stderr]   |                         ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<syntax::Term>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/mod.rs:22:25
[INFO] [stderr]    |
[INFO] [stderr] 22 |     pub fn new() -> Box<Parser<syntax::Term>> {
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<syntax::Term>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/mod.rs:59:25
[INFO] [stderr]    |
[INFO] [stderr] 59 |     pub fn new() -> Box<Parser<syntax::Term>> {
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<syntax::Term>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/mod.rs:79:25
[INFO] [stderr]    |
[INFO] [stderr] 79 |     pub fn new() -> Box<Parser<syntax::Term>> {
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<syntax::Term>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/mod.rs:96:26
[INFO] [stderr]    |
[INFO] [stderr] 96 |     pub fn new () -> Box<Parser<syntax::Term>> {
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<syntax::Term>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/mod.rs:123:25
[INFO] [stderr]     |
[INFO] [stderr] 123 |     pub fn new() -> Box<Parser<syntax::Term>> {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<syntax::Term>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/mod.rs:141:25
[INFO] [stderr]     |
[INFO] [stderr] 141 |     pub fn new() -> Box<Parser<syntax::Exp5>> {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<syntax::Exp5>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/mod.rs:157:25
[INFO] [stderr]     |
[INFO] [stderr] 157 |     pub fn new() -> Box<Parser<syntax::Exp5>> {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<syntax::Exp5>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/mod.rs:169:25
[INFO] [stderr]     |
[INFO] [stderr] 169 |     pub fn new() -> Box<Parser<syntax::Exp5>> {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<syntax::Exp5>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/mod.rs:184:25
[INFO] [stderr]     |
[INFO] [stderr] 184 |     pub fn new() -> Box<Parser<syntax::Exp4>> {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<syntax::Exp4>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/mod.rs:200:25
[INFO] [stderr]     |
[INFO] [stderr] 200 |     pub fn new() -> Box<Parser<syntax::Exp3>> {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<syntax::Exp3>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/mod.rs:218:25
[INFO] [stderr]     |
[INFO] [stderr] 218 |     pub fn new() -> Box<Parser<syntax::Exp3>> {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<syntax::Exp3>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/mod.rs:236:25
[INFO] [stderr]     |
[INFO] [stderr] 236 |     pub fn new() -> Box<Parser<syntax::Exp3>> {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<syntax::Exp3>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/mod.rs:248:25
[INFO] [stderr]     |
[INFO] [stderr] 248 |     pub fn new() -> Box<Parser<syntax::Exp3>> {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<syntax::Exp3>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/mod.rs:264:25
[INFO] [stderr]     |
[INFO] [stderr] 264 |     pub fn new() -> Box<Parser<syntax::Exp2>> {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<syntax::Exp2>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/mod.rs:280:25
[INFO] [stderr]     |
[INFO] [stderr] 280 |     pub fn new() -> Box<Parser<syntax::Exp1>> {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<syntax::Exp1>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/mod.rs:296:25
[INFO] [stderr]     |
[INFO] [stderr] 296 |     pub fn new() -> Box<Parser<syntax::Exp1>> {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<syntax::Exp1>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/mod.rs:312:25
[INFO] [stderr]     |
[INFO] [stderr] 312 |     pub fn new() -> Box<Parser<syntax::Exp1>> {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<syntax::Exp1>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/mod.rs:324:25
[INFO] [stderr]     |
[INFO] [stderr] 324 |     pub fn new() -> Box<Parser<syntax::Exp1>> {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<syntax::Exp1>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/mod.rs:340:25
[INFO] [stderr]     |
[INFO] [stderr] 340 |     pub fn new() -> Box<Parser<syntax::Exp>> {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<syntax::Exp>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/mod.rs:357:25
[INFO] [stderr]     |
[INFO] [stderr] 357 |     pub fn new() -> Box<Parser<syntax::Statement>> {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<syntax::Statement>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/mod.rs:371:25
[INFO] [stderr]     |
[INFO] [stderr] 371 |     pub fn new() -> Box<Parser<syntax::Statement>> {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<syntax::Statement>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/mod.rs:391:25
[INFO] [stderr]     |
[INFO] [stderr] 391 |     pub fn new() -> Box<Parser<syntax::Statement>> {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<syntax::Statement>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/mod.rs:409:25
[INFO] [stderr]     |
[INFO] [stderr] 409 |     pub fn new() -> Box<Parser<syntax::Block>> {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<syntax::Block>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/mod.rs:423:25
[INFO] [stderr]     |
[INFO] [stderr] 423 |     pub fn new() -> Box<Parser<syntax::Block>> {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<syntax::Block>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser/mod.rs:442:25
[INFO] [stderr]     |
[INFO] [stderr] 442 |     pub fn new() -> Box<Parser<syntax::Block>> {
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Parser<syntax::Block>`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `parser`
[INFO] [stderr]    --> src/interpreter/mod.rs:121:5
[INFO] [stderr]     |
[INFO] [stderr] 121 | use parser;
[INFO] [stderr]     |     ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/interpreter/mod.rs:86:13
[INFO] [stderr]    |
[INFO] [stderr] 86 |             _ => {
[INFO] [stderr]    |             ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `input`
[INFO] [stderr]    --> src/parser/mod.rs:162:21
[INFO] [stderr]     |
[INFO] [stderr] 162 |     fn parse(&self, input : &mut String) -> Result<syntax::Exp5, ParseError> {
[INFO] [stderr]     |                     ^^^^^ help: consider prefixing with an underscore: `_input`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `input`
[INFO] [stderr]    --> src/parser/mod.rs:241:21
[INFO] [stderr]     |
[INFO] [stderr] 241 |     fn parse(&self, input : &mut String) -> Result<syntax::Exp3, ParseError> {
[INFO] [stderr]     |                     ^^^^^ help: consider prefixing with an underscore: `_input`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `input`
[INFO] [stderr]    --> src/parser/mod.rs:317:21
[INFO] [stderr]     |
[INFO] [stderr] 317 |     fn parse(&self, input : &mut String) -> Result<syntax::Exp1, ParseError> {
[INFO] [stderr]     |                     ^^^^^ help: consider prefixing with an underscore: `_input`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t1`
[INFO] [stderr]   --> src/compiler/mod.rs:28:21
[INFO] [stderr]    |
[INFO] [stderr] 28 |         ExpAst::App(t1, t2) => {
[INFO] [stderr]    |                     ^^ help: consider prefixing with an underscore: `_t1`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t2`
[INFO] [stderr]   --> src/compiler/mod.rs:28:25
[INFO] [stderr]    |
[INFO] [stderr] 28 |         ExpAst::App(t1, t2) => {
[INFO] [stderr]    |                         ^^ help: consider prefixing with an underscore: `_t2`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]   --> src/compiler/mod.rs:31:21
[INFO] [stderr]    |
[INFO] [stderr] 31 |         ExpAst::Var(name) => {
[INFO] [stderr]    |                     ^^^^ help: consider prefixing with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `exp_ast`
[INFO] [stderr]   --> src/compiler/mod.rs:63:36
[INFO] [stderr]    |
[INFO] [stderr] 63 |         StatementAst::Assign(name, exp_ast) => (),
[INFO] [stderr]    |                                    ^^^^^^^ help: consider prefixing with an underscore: `_exp_ast`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]   --> src/compiler/mod.rs:63:30
[INFO] [stderr]    |
[INFO] [stderr] 63 |         StatementAst::Assign(name, exp_ast) => (),
[INFO] [stderr]    |                              ^^^^ help: consider prefixing with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ast`
[INFO] [stderr]   --> src/compiler/mod.rs:67:22
[INFO] [stderr]    |
[INFO] [stderr] 67 | pub fn compile_block(ast : &BlockAst, code : &mut Vec<vm::Operator>) {
[INFO] [stderr]    |                      ^^^ help: consider prefixing with an underscore: `_ast`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `code`
[INFO] [stderr]   --> src/compiler/mod.rs:67:39
[INFO] [stderr]    |
[INFO] [stderr] 67 | pub fn compile_block(ast : &BlockAst, code : &mut Vec<vm::Operator>) {
[INFO] [stderr]    |                                       ^^^^ help: consider prefixing with an underscore: `_code`
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/interpreter/mod.rs:86:13
[INFO] [stderr]    |
[INFO] [stderr] 86 |             _ => {
[INFO] [stderr]    |             ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `input`
[INFO] [stderr]    --> src/parser/mod.rs:162:21
[INFO] [stderr]     |
[INFO] [stderr] 162 |     fn parse(&self, input : &mut String) -> Result<syntax::Exp5, ParseError> {
[INFO] [stderr]     |                     ^^^^^ help: consider prefixing with an underscore: `_input`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `input`
[INFO] [stderr]    --> src/parser/mod.rs:241:21
[INFO] [stderr]     |
[INFO] [stderr] 241 |     fn parse(&self, input : &mut String) -> Result<syntax::Exp3, ParseError> {
[INFO] [stderr]     |                     ^^^^^ help: consider prefixing with an underscore: `_input`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `input`
[INFO] [stderr]    --> src/parser/mod.rs:317:21
[INFO] [stderr]     |
[INFO] [stderr] 317 |     fn parse(&self, input : &mut String) -> Result<syntax::Exp1, ParseError> {
[INFO] [stderr]     |                     ^^^^^ help: consider prefixing with an underscore: `_input`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t1`
[INFO] [stderr]   --> src/compiler/mod.rs:28:21
[INFO] [stderr]    |
[INFO] [stderr] 28 |         ExpAst::App(t1, t2) => {
[INFO] [stderr]    |                     ^^ help: consider prefixing with an underscore: `_t1`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t2`
[INFO] [stderr]   --> src/compiler/mod.rs:28:25
[INFO] [stderr]    |
[INFO] [stderr] 28 |         ExpAst::App(t1, t2) => {
[INFO] [stderr]    |                         ^^ help: consider prefixing with an underscore: `_t2`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]   --> src/compiler/mod.rs:31:21
[INFO] [stderr]    |
[INFO] [stderr] 31 |         ExpAst::Var(name) => {
[INFO] [stderr]    |                     ^^^^ help: consider prefixing with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `exp_ast`
[INFO] [stderr]   --> src/compiler/mod.rs:63:36
[INFO] [stderr]    |
[INFO] [stderr] 63 |         StatementAst::Assign(name, exp_ast) => (),
[INFO] [stderr]    |                                    ^^^^^^^ help: consider prefixing with an underscore: `_exp_ast`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]   --> src/compiler/mod.rs:63:30
[INFO] [stderr]    |
[INFO] [stderr] 63 |         StatementAst::Assign(name, exp_ast) => (),
[INFO] [stderr]    |                              ^^^^ help: consider prefixing with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ast`
[INFO] [stderr]   --> src/compiler/mod.rs:67:22
[INFO] [stderr]    |
[INFO] [stderr] 67 | pub fn compile_block(ast : &BlockAst, code : &mut Vec<vm::Operator>) {
[INFO] [stderr]    |                      ^^^ help: consider prefixing with an underscore: `_ast`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `code`
[INFO] [stderr]   --> src/compiler/mod.rs:67:39
[INFO] [stderr]    |
[INFO] [stderr] 67 | pub fn compile_block(ast : &BlockAst, code : &mut Vec<vm::Operator>) {
[INFO] [stderr]    |                                       ^^^^ help: consider prefixing with an underscore: `_code`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Sub`
[INFO] [stderr]  --> src/vm/mod.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     Sub,
[INFO] [stderr]   |     ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Mul`
[INFO] [stderr]  --> src/vm/mod.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     Mul,
[INFO] [stderr]   |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Div`
[INFO] [stderr]  --> src/vm/mod.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     Div,
[INFO] [stderr]   |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `JumpUnless`
[INFO] [stderr]   --> src/vm/mod.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     JumpUnless(isize), // proced the PC if top of the stack is 0
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Jump`
[INFO] [stderr]   --> src/vm/mod.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     Jump(isize),       // proceed the PC for the size
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `compile`
[INFO] [stderr]  --> src/compiler/mod.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn compile(ast : &ExpAst, code : &mut Vec<vm::Operator>) {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `compile_statement`
[INFO] [stderr]   --> src/compiler/mod.rs:60:1
[INFO] [stderr]    |
[INFO] [stderr] 60 | pub fn compile_statement(ast : &StatementAst, code : &mut Vec<vm::Operator>) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/parser/combinator.rs:404:5
[INFO] [stderr]     |
[INFO] [stderr] 404 |     whitespaces.parse(&mut input);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/parser/combinator.rs:411:5
[INFO] [stderr]     |
[INFO] [stderr] 411 |     whitespaces.parse(&mut input);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `PushInt32`
[INFO] [stderr]  --> src/vm/mod.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     PushInt32(i32),
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Pop`
[INFO] [stderr]  --> src/vm/mod.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     Pop,
[INFO] [stderr]   |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Add`
[INFO] [stderr]  --> src/vm/mod.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     Add,
[INFO] [stderr]   |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Sub`
[INFO] [stderr]  --> src/vm/mod.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     Sub,
[INFO] [stderr]   |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Mul`
[INFO] [stderr]  --> src/vm/mod.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     Mul,
[INFO] [stderr]   |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Div`
[INFO] [stderr]  --> src/vm/mod.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     Div,
[INFO] [stderr]   |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Not`
[INFO] [stderr]   --> src/vm/mod.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     Not,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Equal`
[INFO] [stderr]   --> src/vm/mod.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     Equal,             // read 2 value from stack, compare them  and push 1/0 if values are the same/different
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Load`
[INFO] [stderr]   --> src/vm/mod.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     Load(usize),       // read the n-th item in the stack and push it on top
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Store`
[INFO] [stderr]   --> src/vm/mod.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     Store(usize),      // write value on top of the stack to the n-th item in the stack
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Print`
[INFO] [stderr]   --> src/vm/mod.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     Print,             // print the value on top of the stack
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `JumpIf`
[INFO] [stderr]   --> src/vm/mod.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     JumpIf(isize),     // proceed the PC if top of the stack is not 0
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `JumpUnless`
[INFO] [stderr]   --> src/vm/mod.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     JumpUnless(isize), // proced the PC if top of the stack is 0
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Jump`
[INFO] [stderr]   --> src/vm/mod.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     Jump(isize),       // proceed the PC for the size
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Dump`
[INFO] [stderr]   --> src/vm/mod.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     Dump,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Num`
[INFO] [stderr]   --> src/vm/mod.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     Num(i32),
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `process`
[INFO] [stderr]   --> src/vm/mod.rs:32:1
[INFO] [stderr]    |
[INFO] [stderr] 32 | pub fn process(program : &Vec<Operator>) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `compile`
[INFO] [stderr]  --> src/compiler/mod.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn compile(ast : &ExpAst, code : &mut Vec<vm::Operator>) {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `compile_statement`
[INFO] [stderr]   --> src/compiler/mod.rs:60:1
[INFO] [stderr]    |
[INFO] [stderr] 60 | pub fn compile_statement(ast : &StatementAst, code : &mut Vec<vm::Operator>) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.24s
[INFO] running `"docker" "inspect" "feefa7f16b23bafd0280013177ebf54edfba3ef29aa10df24fb043e77de2b05f"`
[INFO] running `"docker" "rm" "-f" "feefa7f16b23bafd0280013177ebf54edfba3ef29aa10df24fb043e77de2b05f"`
[INFO] [stdout] feefa7f16b23bafd0280013177ebf54edfba3ef29aa10df24fb043e77de2b05f