[INFO] updating cached repository https://github.com/ethowitz/rush
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b036ace00a6472231b4653767c569fbc9e7fdcc7
[INFO] testing ethowitz/rush against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fethowitz%2Frush" "/workspace/builds/worker-12/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ethowitz/rush on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/ethowitz/rush
[INFO] finished tweaking git repo https://github.com/ethowitz/rush
[INFO] tweaked toml for git repo https://github.com/ethowitz/rush written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/ethowitz/rush already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 835b3067ea295d813294dd1685514d389bbba5088a61550c17e7874362eccb2f
[INFO] running `"docker" "start" "-a" "835b3067ea295d813294dd1685514d389bbba5088a61550c17e7874362eccb2f"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling lazy_static v0.2.6
[INFO] [stderr]    Compiling thread-id v3.0.0
[INFO] [stderr]    Compiling memchr v1.0.1
[INFO] [stderr]    Compiling thread_local v0.3.3
[INFO] [stderr]    Compiling aho-corasick v0.6.3
[INFO] [stderr]    Compiling regex v0.2.1
[INFO] [stderr]    Compiling rush v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:110:17
[INFO] [stderr]     |
[INFO] [stderr] 110 |         let e = try!(expr(ts));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:131:27
[INFO] [stderr]     |
[INFO] [stderr] 131 |                 args.push(try!(expr(ts)));
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:148:24
[INFO] [stderr]     |
[INFO] [stderr] 148 |             let cond = try!(expr(ts));
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:155:27
[INFO] [stderr]     |
[INFO] [stderr] 155 |             let branch1 = try!(expr(ts));
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:163:27
[INFO] [stderr]     |
[INFO] [stderr] 163 |             let branch2 = try!(expr(ts));
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:174:17
[INFO] [stderr]     |
[INFO] [stderr] 174 |     let mut e = try!(comparison(ts));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:180:69
[INFO] [stderr]     |
[INFO] [stderr] 180 |                 e = Exp::Binary(Box::new(e), BinaryOp::Eq, Box::new(try!(comparison(ts))))
[INFO] [stderr]     |                                                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:184:70
[INFO] [stderr]     |
[INFO] [stderr] 184 |                 e = Exp::Binary(Box::new(e), BinaryOp::Neq, Box::new(try!(comparison(ts))))
[INFO] [stderr]     |                                                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:193:17
[INFO] [stderr]     |
[INFO] [stderr] 193 |     let mut e = try!(boolop(ts));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:198:69
[INFO] [stderr]     |
[INFO] [stderr] 198 |                 e = Exp::Binary(Box::new(e), BinaryOp::Gt, Box::new(try!(boolop(ts))))
[INFO] [stderr]     |                                                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:202:69
[INFO] [stderr]     |
[INFO] [stderr] 202 |                 e = Exp::Binary(Box::new(e), BinaryOp::Lt, Box::new(try!(boolop(ts))))
[INFO] [stderr]     |                                                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:206:70
[INFO] [stderr]     |
[INFO] [stderr] 206 |                 e = Exp::Binary(Box::new(e), BinaryOp::Gte, Box::new(try!(boolop(ts))))
[INFO] [stderr]     |                                                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:210:70
[INFO] [stderr]     |
[INFO] [stderr] 210 |                 e = Exp::Binary(Box::new(e), BinaryOp::Lte, Box::new(try!(boolop(ts))))
[INFO] [stderr]     |                                                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:219:17
[INFO] [stderr]     |
[INFO] [stderr] 219 |     let mut e = try!(term(ts));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:224:70
[INFO] [stderr]     |
[INFO] [stderr] 224 |                 e = Exp::Binary(Box::new(e), BinaryOp::And, Box::new(try!(term(ts))))
[INFO] [stderr]     |                                                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:228:69
[INFO] [stderr]     |
[INFO] [stderr] 228 |                 e = Exp::Binary(Box::new(e), BinaryOp::Or, Box::new(try!(term(ts))))
[INFO] [stderr]     |                                                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:237:17
[INFO] [stderr]     |
[INFO] [stderr] 237 |     let mut e = try!(factor(ts));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:245:70
[INFO] [stderr]     |
[INFO] [stderr] 245 |                 e = Exp::Binary(Box::new(e), BinaryOp::Sub, Box::new(try!(factor(ts))))
[INFO] [stderr]     |                                                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:249:70
[INFO] [stderr]     |
[INFO] [stderr] 249 |                 e = Exp::Binary(Box::new(e), BinaryOp::Add, Box::new(try!(factor(ts))))
[INFO] [stderr]     |                                                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:258:17
[INFO] [stderr]     |
[INFO] [stderr] 258 |     let mut e = try!(unary(ts));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:264:70
[INFO] [stderr]     |
[INFO] [stderr] 264 |                 e = Exp::Binary(Box::new(e), BinaryOp::Div, Box::new(try!(unary(ts))))
[INFO] [stderr]     |                                                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:268:71
[INFO] [stderr]     |
[INFO] [stderr] 268 |                 e = Exp::Binary(Box::new(e), BinaryOp::Mult, Box::new(try!(unary(ts))))
[INFO] [stderr]     |                                                                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:272:70
[INFO] [stderr]     |
[INFO] [stderr] 272 |                 e = Exp::Binary(Box::new(e), BinaryOp::Mod, Box::new(try!(unary(ts))))
[INFO] [stderr]     |                                                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:289:54
[INFO] [stderr]     |
[INFO] [stderr] 289 |             Ok(Exp::Unary(UnaryOp::Inverse, Box::new(try!(unary(ts)))))
[INFO] [stderr]     |                                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:293:53
[INFO] [stderr]     |
[INFO] [stderr] 293 |             Ok(Exp::Unary(UnaryOp::Negate, Box::new(try!(unary(ts)))))
[INFO] [stderr]     |                                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:369:16
[INFO] [stderr]     |
[INFO] [stderr] 369 |     let lval = try!(eval(l));
[INFO] [stderr]     |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:370:16
[INFO] [stderr]     |
[INFO] [stderr] 370 |     let rval = try!(eval(r));
[INFO] [stderr]     |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:373:38
[INFO] [stderr]     |
[INFO] [stderr] 373 |         BinaryOp::Add => Ok(Val::Num(try!(expect_num(lval)) + try!(expect_num(rval)))),
[INFO] [stderr]     |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:373:63
[INFO] [stderr]     |
[INFO] [stderr] 373 |         BinaryOp::Add => Ok(Val::Num(try!(expect_num(lval)) + try!(expect_num(rval)))),
[INFO] [stderr]     |                                                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:374:38
[INFO] [stderr]     |
[INFO] [stderr] 374 |         BinaryOp::Sub => Ok(Val::Num(try!(expect_num(lval)) - try!(expect_num(rval)))),
[INFO] [stderr]     |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:374:63
[INFO] [stderr]     |
[INFO] [stderr] 374 |         BinaryOp::Sub => Ok(Val::Num(try!(expect_num(lval)) - try!(expect_num(rval)))),
[INFO] [stderr]     |                                                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:375:39
[INFO] [stderr]     |
[INFO] [stderr] 375 |         BinaryOp::Mult => Ok(Val::Num(try!(expect_num(lval)) * try!(expect_num(rval)))),
[INFO] [stderr]     |                                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:375:64
[INFO] [stderr]     |
[INFO] [stderr] 375 |         BinaryOp::Mult => Ok(Val::Num(try!(expect_num(lval)) * try!(expect_num(rval)))),
[INFO] [stderr]     |                                                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:376:38
[INFO] [stderr]     |
[INFO] [stderr] 376 |         BinaryOp::Div => Ok(Val::Num(try!(expect_num(lval)) / try!(expect_num(rval)))),
[INFO] [stderr]     |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:376:63
[INFO] [stderr]     |
[INFO] [stderr] 376 |         BinaryOp::Div => Ok(Val::Num(try!(expect_num(lval)) / try!(expect_num(rval)))),
[INFO] [stderr]     |                                                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:377:38
[INFO] [stderr]     |
[INFO] [stderr] 377 |         BinaryOp::Mod => Ok(Val::Num(try!(expect_num(lval)) % try!(expect_num(rval)))),
[INFO] [stderr]     |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:377:63
[INFO] [stderr]     |
[INFO] [stderr] 377 |         BinaryOp::Mod => Ok(Val::Num(try!(expect_num(lval)) % try!(expect_num(rval)))),
[INFO] [stderr]     |                                                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:378:38
[INFO] [stderr]     |
[INFO] [stderr] 378 |         BinaryOp::Lt => Ok(Val::Bool(try!(expect_num(lval)) < try!(expect_num(rval)))),
[INFO] [stderr]     |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:378:63
[INFO] [stderr]     |
[INFO] [stderr] 378 |         BinaryOp::Lt => Ok(Val::Bool(try!(expect_num(lval)) < try!(expect_num(rval)))),
[INFO] [stderr]     |                                                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:379:39
[INFO] [stderr]     |
[INFO] [stderr] 379 |         BinaryOp::Lte => Ok(Val::Bool(try!(expect_num(lval)) <= try!(expect_num(rval)))),
[INFO] [stderr]     |                                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:379:65
[INFO] [stderr]     |
[INFO] [stderr] 379 |         BinaryOp::Lte => Ok(Val::Bool(try!(expect_num(lval)) <= try!(expect_num(rval)))),
[INFO] [stderr]     |                                                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:380:38
[INFO] [stderr]     |
[INFO] [stderr] 380 |         BinaryOp::Gt => Ok(Val::Bool(try!(expect_num(lval)) > try!(expect_num(rval)))),
[INFO] [stderr]     |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:380:63
[INFO] [stderr]     |
[INFO] [stderr] 380 |         BinaryOp::Gt => Ok(Val::Bool(try!(expect_num(lval)) > try!(expect_num(rval)))),
[INFO] [stderr]     |                                                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:381:39
[INFO] [stderr]     |
[INFO] [stderr] 381 |         BinaryOp::Gte => Ok(Val::Bool(try!(expect_num(lval)) >= try!(expect_num(rval)))),
[INFO] [stderr]     |                                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:381:65
[INFO] [stderr]     |
[INFO] [stderr] 381 |         BinaryOp::Gte => Ok(Val::Bool(try!(expect_num(lval)) >= try!(expect_num(rval)))),
[INFO] [stderr]     |                                                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:382:38
[INFO] [stderr]     |
[INFO] [stderr] 382 |         BinaryOp::Eq => Ok(Val::Bool(try!(expect_num(lval)) == try!(expect_num(rval)))),
[INFO] [stderr]     |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:382:64
[INFO] [stderr]     |
[INFO] [stderr] 382 |         BinaryOp::Eq => Ok(Val::Bool(try!(expect_num(lval)) == try!(expect_num(rval)))),
[INFO] [stderr]     |                                                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:383:39
[INFO] [stderr]     |
[INFO] [stderr] 383 |         BinaryOp::Neq => Ok(Val::Bool(try!(expect_num(lval)) != try!(expect_num(rval)))),
[INFO] [stderr]     |                                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:383:65
[INFO] [stderr]     |
[INFO] [stderr] 383 |         BinaryOp::Neq => Ok(Val::Bool(try!(expect_num(lval)) != try!(expect_num(rval)))),
[INFO] [stderr]     |                                                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:384:39
[INFO] [stderr]     |
[INFO] [stderr] 384 |         BinaryOp::And => Ok(Val::Bool(try!(expect_bool(lval)) && try!(expect_bool(rval)))),
[INFO] [stderr]     |                                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:384:66
[INFO] [stderr]     |
[INFO] [stderr] 384 |         BinaryOp::And => Ok(Val::Bool(try!(expect_bool(lval)) && try!(expect_bool(rval)))),
[INFO] [stderr]     |                                                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:385:38
[INFO] [stderr]     |
[INFO] [stderr] 385 |         BinaryOp::Or => Ok(Val::Bool(try!(expect_bool(lval)) || try!(expect_bool(rval))))
[INFO] [stderr]     |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:385:65
[INFO] [stderr]     |
[INFO] [stderr] 385 |         BinaryOp::Or => Ok(Val::Bool(try!(expect_bool(lval)) || try!(expect_bool(rval))))
[INFO] [stderr]     |                                                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:390:15
[INFO] [stderr]     |
[INFO] [stderr] 390 |     let val = try!(eval(operand));
[INFO] [stderr]     |               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:392:40
[INFO] [stderr]     |
[INFO] [stderr] 392 |         UnaryOp::Negate => Ok(Val::Num(try!(expect_num(val)) * -1 )),
[INFO] [stderr]     |                                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:393:41
[INFO] [stderr]     |
[INFO] [stderr] 393 |         UnaryOp::Inverse => Ok(Val::Num(try!(expect_num(val)) * -1 )),
[INFO] [stderr]     |                                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:398:8
[INFO] [stderr]     |
[INFO] [stderr] 398 |     if try!(expect_bool(try!(eval(cond)))) {
[INFO] [stderr]     |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:398:25
[INFO] [stderr]     |
[INFO] [stderr] 398 |     if try!(expect_bool(try!(eval(cond)))) {
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:418:29
[INFO] [stderr]     |
[INFO] [stderr] 418 |         let arg_val = match try!(eval(arg)) {
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `env`, `process`
[INFO] [stderr]  --> src/main.rs:7:11
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::{env, io, process};
[INFO] [stderr]   |           ^^^      ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/main.rs:45:1
[INFO] [stderr]    |
[INFO] [stderr] 45 | / lazy_static! {
[INFO] [stderr] 46 | |     static ref VAR_ENV: Env = {
[INFO] [stderr] 47 | |         HashMap::new()
[INFO] [stderr] 48 | |     };
[INFO] [stderr] 49 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/main.rs:45:1
[INFO] [stderr]    |
[INFO] [stderr] 45 | / lazy_static! {
[INFO] [stderr] 46 | |     static ref VAR_ENV: Env = {
[INFO] [stderr] 47 | |         HashMap::new()
[INFO] [stderr] 48 | |     };
[INFO] [stderr] 49 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/main.rs:51:1
[INFO] [stderr]    |
[INFO] [stderr] 51 | / lazy_static! {
[INFO] [stderr] 52 | |     static ref ALIAS_ENV: Env = {
[INFO] [stderr] 53 | |         HashMap::new()
[INFO] [stderr] 54 | |     };
[INFO] [stderr] 55 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/main.rs:51:1
[INFO] [stderr]    |
[INFO] [stderr] 51 | / lazy_static! {
[INFO] [stderr] 52 | |     static ref ALIAS_ENV: Env = {
[INFO] [stderr] 53 | |         HashMap::new()
[INFO] [stderr] 54 | |     };
[INFO] [stderr] 55 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: 64 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.30s
[INFO] running `"docker" "inspect" "835b3067ea295d813294dd1685514d389bbba5088a61550c17e7874362eccb2f"`
[INFO] running `"docker" "rm" "-f" "835b3067ea295d813294dd1685514d389bbba5088a61550c17e7874362eccb2f"`
[INFO] [stdout] 835b3067ea295d813294dd1685514d389bbba5088a61550c17e7874362eccb2f
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c4df7dbe8878e213e6ab263b305048ee8d45c762bf7775aafcb58cbfea47a7a5
[INFO] running `"docker" "start" "-a" "c4df7dbe8878e213e6ab263b305048ee8d45c762bf7775aafcb58cbfea47a7a5"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling rush v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:110:17
[INFO] [stderr]     |
[INFO] [stderr] 110 |         let e = try!(expr(ts));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:131:27
[INFO] [stderr]     |
[INFO] [stderr] 131 |                 args.push(try!(expr(ts)));
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:148:24
[INFO] [stderr]     |
[INFO] [stderr] 148 |             let cond = try!(expr(ts));
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:155:27
[INFO] [stderr]     |
[INFO] [stderr] 155 |             let branch1 = try!(expr(ts));
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:163:27
[INFO] [stderr]     |
[INFO] [stderr] 163 |             let branch2 = try!(expr(ts));
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:174:17
[INFO] [stderr]     |
[INFO] [stderr] 174 |     let mut e = try!(comparison(ts));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:180:69
[INFO] [stderr]     |
[INFO] [stderr] 180 |                 e = Exp::Binary(Box::new(e), BinaryOp::Eq, Box::new(try!(comparison(ts))))
[INFO] [stderr]     |                                                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:184:70
[INFO] [stderr]     |
[INFO] [stderr] 184 |                 e = Exp::Binary(Box::new(e), BinaryOp::Neq, Box::new(try!(comparison(ts))))
[INFO] [stderr]     |                                                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:193:17
[INFO] [stderr]     |
[INFO] [stderr] 193 |     let mut e = try!(boolop(ts));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:198:69
[INFO] [stderr]     |
[INFO] [stderr] 198 |                 e = Exp::Binary(Box::new(e), BinaryOp::Gt, Box::new(try!(boolop(ts))))
[INFO] [stderr]     |                                                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:202:69
[INFO] [stderr]     |
[INFO] [stderr] 202 |                 e = Exp::Binary(Box::new(e), BinaryOp::Lt, Box::new(try!(boolop(ts))))
[INFO] [stderr]     |                                                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:206:70
[INFO] [stderr]     |
[INFO] [stderr] 206 |                 e = Exp::Binary(Box::new(e), BinaryOp::Gte, Box::new(try!(boolop(ts))))
[INFO] [stderr]     |                                                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:210:70
[INFO] [stderr]     |
[INFO] [stderr] 210 |                 e = Exp::Binary(Box::new(e), BinaryOp::Lte, Box::new(try!(boolop(ts))))
[INFO] [stderr]     |                                                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:219:17
[INFO] [stderr]     |
[INFO] [stderr] 219 |     let mut e = try!(term(ts));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:224:70
[INFO] [stderr]     |
[INFO] [stderr] 224 |                 e = Exp::Binary(Box::new(e), BinaryOp::And, Box::new(try!(term(ts))))
[INFO] [stderr]     |                                                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:228:69
[INFO] [stderr]     |
[INFO] [stderr] 228 |                 e = Exp::Binary(Box::new(e), BinaryOp::Or, Box::new(try!(term(ts))))
[INFO] [stderr]     |                                                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:237:17
[INFO] [stderr]     |
[INFO] [stderr] 237 |     let mut e = try!(factor(ts));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:245:70
[INFO] [stderr]     |
[INFO] [stderr] 245 |                 e = Exp::Binary(Box::new(e), BinaryOp::Sub, Box::new(try!(factor(ts))))
[INFO] [stderr]     |                                                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:249:70
[INFO] [stderr]     |
[INFO] [stderr] 249 |                 e = Exp::Binary(Box::new(e), BinaryOp::Add, Box::new(try!(factor(ts))))
[INFO] [stderr]     |                                                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:258:17
[INFO] [stderr]     |
[INFO] [stderr] 258 |     let mut e = try!(unary(ts));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:264:70
[INFO] [stderr]     |
[INFO] [stderr] 264 |                 e = Exp::Binary(Box::new(e), BinaryOp::Div, Box::new(try!(unary(ts))))
[INFO] [stderr]     |                                                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:268:71
[INFO] [stderr]     |
[INFO] [stderr] 268 |                 e = Exp::Binary(Box::new(e), BinaryOp::Mult, Box::new(try!(unary(ts))))
[INFO] [stderr]     |                                                                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:272:70
[INFO] [stderr]     |
[INFO] [stderr] 272 |                 e = Exp::Binary(Box::new(e), BinaryOp::Mod, Box::new(try!(unary(ts))))
[INFO] [stderr]     |                                                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:289:54
[INFO] [stderr]     |
[INFO] [stderr] 289 |             Ok(Exp::Unary(UnaryOp::Inverse, Box::new(try!(unary(ts)))))
[INFO] [stderr]     |                                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:293:53
[INFO] [stderr]     |
[INFO] [stderr] 293 |             Ok(Exp::Unary(UnaryOp::Negate, Box::new(try!(unary(ts)))))
[INFO] [stderr]     |                                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:369:16
[INFO] [stderr]     |
[INFO] [stderr] 369 |     let lval = try!(eval(l));
[INFO] [stderr]     |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:370:16
[INFO] [stderr]     |
[INFO] [stderr] 370 |     let rval = try!(eval(r));
[INFO] [stderr]     |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:373:38
[INFO] [stderr]     |
[INFO] [stderr] 373 |         BinaryOp::Add => Ok(Val::Num(try!(expect_num(lval)) + try!(expect_num(rval)))),
[INFO] [stderr]     |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:373:63
[INFO] [stderr]     |
[INFO] [stderr] 373 |         BinaryOp::Add => Ok(Val::Num(try!(expect_num(lval)) + try!(expect_num(rval)))),
[INFO] [stderr]     |                                                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:374:38
[INFO] [stderr]     |
[INFO] [stderr] 374 |         BinaryOp::Sub => Ok(Val::Num(try!(expect_num(lval)) - try!(expect_num(rval)))),
[INFO] [stderr]     |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:374:63
[INFO] [stderr]     |
[INFO] [stderr] 374 |         BinaryOp::Sub => Ok(Val::Num(try!(expect_num(lval)) - try!(expect_num(rval)))),
[INFO] [stderr]     |                                                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:375:39
[INFO] [stderr]     |
[INFO] [stderr] 375 |         BinaryOp::Mult => Ok(Val::Num(try!(expect_num(lval)) * try!(expect_num(rval)))),
[INFO] [stderr]     |                                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:375:64
[INFO] [stderr]     |
[INFO] [stderr] 375 |         BinaryOp::Mult => Ok(Val::Num(try!(expect_num(lval)) * try!(expect_num(rval)))),
[INFO] [stderr]     |                                                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:376:38
[INFO] [stderr]     |
[INFO] [stderr] 376 |         BinaryOp::Div => Ok(Val::Num(try!(expect_num(lval)) / try!(expect_num(rval)))),
[INFO] [stderr]     |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:376:63
[INFO] [stderr]     |
[INFO] [stderr] 376 |         BinaryOp::Div => Ok(Val::Num(try!(expect_num(lval)) / try!(expect_num(rval)))),
[INFO] [stderr]     |                                                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:377:38
[INFO] [stderr]     |
[INFO] [stderr] 377 |         BinaryOp::Mod => Ok(Val::Num(try!(expect_num(lval)) % try!(expect_num(rval)))),
[INFO] [stderr]     |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:377:63
[INFO] [stderr]     |
[INFO] [stderr] 377 |         BinaryOp::Mod => Ok(Val::Num(try!(expect_num(lval)) % try!(expect_num(rval)))),
[INFO] [stderr]     |                                                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:378:38
[INFO] [stderr]     |
[INFO] [stderr] 378 |         BinaryOp::Lt => Ok(Val::Bool(try!(expect_num(lval)) < try!(expect_num(rval)))),
[INFO] [stderr]     |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:378:63
[INFO] [stderr]     |
[INFO] [stderr] 378 |         BinaryOp::Lt => Ok(Val::Bool(try!(expect_num(lval)) < try!(expect_num(rval)))),
[INFO] [stderr]     |                                                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:379:39
[INFO] [stderr]     |
[INFO] [stderr] 379 |         BinaryOp::Lte => Ok(Val::Bool(try!(expect_num(lval)) <= try!(expect_num(rval)))),
[INFO] [stderr]     |                                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:379:65
[INFO] [stderr]     |
[INFO] [stderr] 379 |         BinaryOp::Lte => Ok(Val::Bool(try!(expect_num(lval)) <= try!(expect_num(rval)))),
[INFO] [stderr]     |                                                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:380:38
[INFO] [stderr]     |
[INFO] [stderr] 380 |         BinaryOp::Gt => Ok(Val::Bool(try!(expect_num(lval)) > try!(expect_num(rval)))),
[INFO] [stderr]     |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:380:63
[INFO] [stderr]     |
[INFO] [stderr] 380 |         BinaryOp::Gt => Ok(Val::Bool(try!(expect_num(lval)) > try!(expect_num(rval)))),
[INFO] [stderr]     |                                                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:381:39
[INFO] [stderr]     |
[INFO] [stderr] 381 |         BinaryOp::Gte => Ok(Val::Bool(try!(expect_num(lval)) >= try!(expect_num(rval)))),
[INFO] [stderr]     |                                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:381:65
[INFO] [stderr]     |
[INFO] [stderr] 381 |         BinaryOp::Gte => Ok(Val::Bool(try!(expect_num(lval)) >= try!(expect_num(rval)))),
[INFO] [stderr]     |                                                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:382:38
[INFO] [stderr]     |
[INFO] [stderr] 382 |         BinaryOp::Eq => Ok(Val::Bool(try!(expect_num(lval)) == try!(expect_num(rval)))),
[INFO] [stderr]     |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:382:64
[INFO] [stderr]     |
[INFO] [stderr] 382 |         BinaryOp::Eq => Ok(Val::Bool(try!(expect_num(lval)) == try!(expect_num(rval)))),
[INFO] [stderr]     |                                                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:383:39
[INFO] [stderr]     |
[INFO] [stderr] 383 |         BinaryOp::Neq => Ok(Val::Bool(try!(expect_num(lval)) != try!(expect_num(rval)))),
[INFO] [stderr]     |                                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:383:65
[INFO] [stderr]     |
[INFO] [stderr] 383 |         BinaryOp::Neq => Ok(Val::Bool(try!(expect_num(lval)) != try!(expect_num(rval)))),
[INFO] [stderr]     |                                                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:384:39
[INFO] [stderr]     |
[INFO] [stderr] 384 |         BinaryOp::And => Ok(Val::Bool(try!(expect_bool(lval)) && try!(expect_bool(rval)))),
[INFO] [stderr]     |                                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:384:66
[INFO] [stderr]     |
[INFO] [stderr] 384 |         BinaryOp::And => Ok(Val::Bool(try!(expect_bool(lval)) && try!(expect_bool(rval)))),
[INFO] [stderr]     |                                                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:385:38
[INFO] [stderr]     |
[INFO] [stderr] 385 |         BinaryOp::Or => Ok(Val::Bool(try!(expect_bool(lval)) || try!(expect_bool(rval))))
[INFO] [stderr]     |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:385:65
[INFO] [stderr]     |
[INFO] [stderr] 385 |         BinaryOp::Or => Ok(Val::Bool(try!(expect_bool(lval)) || try!(expect_bool(rval))))
[INFO] [stderr]     |                                                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:390:15
[INFO] [stderr]     |
[INFO] [stderr] 390 |     let val = try!(eval(operand));
[INFO] [stderr]     |               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:392:40
[INFO] [stderr]     |
[INFO] [stderr] 392 |         UnaryOp::Negate => Ok(Val::Num(try!(expect_num(val)) * -1 )),
[INFO] [stderr]     |                                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:393:41
[INFO] [stderr]     |
[INFO] [stderr] 393 |         UnaryOp::Inverse => Ok(Val::Num(try!(expect_num(val)) * -1 )),
[INFO] [stderr]     |                                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:398:8
[INFO] [stderr]     |
[INFO] [stderr] 398 |     if try!(expect_bool(try!(eval(cond)))) {
[INFO] [stderr]     |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:398:25
[INFO] [stderr]     |
[INFO] [stderr] 398 |     if try!(expect_bool(try!(eval(cond)))) {
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:418:29
[INFO] [stderr]     |
[INFO] [stderr] 418 |         let arg_val = match try!(eval(arg)) {
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `env`, `process`
[INFO] [stderr]  --> src/main.rs:7:11
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::{env, io, process};
[INFO] [stderr]   |           ^^^      ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/main.rs:45:1
[INFO] [stderr]    |
[INFO] [stderr] 45 | / lazy_static! {
[INFO] [stderr] 46 | |     static ref VAR_ENV: Env = {
[INFO] [stderr] 47 | |         HashMap::new()
[INFO] [stderr] 48 | |     };
[INFO] [stderr] 49 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/main.rs:45:1
[INFO] [stderr]    |
[INFO] [stderr] 45 | / lazy_static! {
[INFO] [stderr] 46 | |     static ref VAR_ENV: Env = {
[INFO] [stderr] 47 | |         HashMap::new()
[INFO] [stderr] 48 | |     };
[INFO] [stderr] 49 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/main.rs:51:1
[INFO] [stderr]    |
[INFO] [stderr] 51 | / lazy_static! {
[INFO] [stderr] 52 | |     static ref ALIAS_ENV: Env = {
[INFO] [stderr] 53 | |         HashMap::new()
[INFO] [stderr] 54 | |     };
[INFO] [stderr] 55 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/main.rs:51:1
[INFO] [stderr]    |
[INFO] [stderr] 51 | / lazy_static! {
[INFO] [stderr] 52 | |     static ref ALIAS_ENV: Env = {
[INFO] [stderr] 53 | |         HashMap::new()
[INFO] [stderr] 54 | |     };
[INFO] [stderr] 55 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: 64 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.99s
[INFO] running `"docker" "inspect" "c4df7dbe8878e213e6ab263b305048ee8d45c762bf7775aafcb58cbfea47a7a5"`
[INFO] running `"docker" "rm" "-f" "c4df7dbe8878e213e6ab263b305048ee8d45c762bf7775aafcb58cbfea47a7a5"`
[INFO] [stdout] c4df7dbe8878e213e6ab263b305048ee8d45c762bf7775aafcb58cbfea47a7a5
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 035230b13c72c33c43c8d2bb9ffc04024e8ac77785d0c3dc585e3a9b83af2af1
[INFO] running `"docker" "start" "-a" "035230b13c72c33c43c8d2bb9ffc04024e8ac77785d0c3dc585e3a9b83af2af1"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:110:17
[INFO] [stderr]     |
[INFO] [stderr] 110 |         let e = try!(expr(ts));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:131:27
[INFO] [stderr]     |
[INFO] [stderr] 131 |                 args.push(try!(expr(ts)));
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:148:24
[INFO] [stderr]     |
[INFO] [stderr] 148 |             let cond = try!(expr(ts));
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:155:27
[INFO] [stderr]     |
[INFO] [stderr] 155 |             let branch1 = try!(expr(ts));
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:163:27
[INFO] [stderr]     |
[INFO] [stderr] 163 |             let branch2 = try!(expr(ts));
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:174:17
[INFO] [stderr]     |
[INFO] [stderr] 174 |     let mut e = try!(comparison(ts));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:180:69
[INFO] [stderr]     |
[INFO] [stderr] 180 |                 e = Exp::Binary(Box::new(e), BinaryOp::Eq, Box::new(try!(comparison(ts))))
[INFO] [stderr]     |                                                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:184:70
[INFO] [stderr]     |
[INFO] [stderr] 184 |                 e = Exp::Binary(Box::new(e), BinaryOp::Neq, Box::new(try!(comparison(ts))))
[INFO] [stderr]     |                                                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:193:17
[INFO] [stderr]     |
[INFO] [stderr] 193 |     let mut e = try!(boolop(ts));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:198:69
[INFO] [stderr]     |
[INFO] [stderr] 198 |                 e = Exp::Binary(Box::new(e), BinaryOp::Gt, Box::new(try!(boolop(ts))))
[INFO] [stderr]     |                                                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:202:69
[INFO] [stderr]     |
[INFO] [stderr] 202 |                 e = Exp::Binary(Box::new(e), BinaryOp::Lt, Box::new(try!(boolop(ts))))
[INFO] [stderr]     |                                                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:206:70
[INFO] [stderr]     |
[INFO] [stderr] 206 |                 e = Exp::Binary(Box::new(e), BinaryOp::Gte, Box::new(try!(boolop(ts))))
[INFO] [stderr]     |                                                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:210:70
[INFO] [stderr]     |
[INFO] [stderr] 210 |                 e = Exp::Binary(Box::new(e), BinaryOp::Lte, Box::new(try!(boolop(ts))))
[INFO] [stderr]     |                                                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:219:17
[INFO] [stderr]     |
[INFO] [stderr] 219 |     let mut e = try!(term(ts));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:224:70
[INFO] [stderr]     |
[INFO] [stderr] 224 |                 e = Exp::Binary(Box::new(e), BinaryOp::And, Box::new(try!(term(ts))))
[INFO] [stderr]     |                                                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:228:69
[INFO] [stderr]     |
[INFO] [stderr] 228 |                 e = Exp::Binary(Box::new(e), BinaryOp::Or, Box::new(try!(term(ts))))
[INFO] [stderr]     |                                                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:237:17
[INFO] [stderr]     |
[INFO] [stderr] 237 |     let mut e = try!(factor(ts));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:245:70
[INFO] [stderr]     |
[INFO] [stderr] 245 |                 e = Exp::Binary(Box::new(e), BinaryOp::Sub, Box::new(try!(factor(ts))))
[INFO] [stderr]     |                                                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:249:70
[INFO] [stderr]     |
[INFO] [stderr] 249 |                 e = Exp::Binary(Box::new(e), BinaryOp::Add, Box::new(try!(factor(ts))))
[INFO] [stderr]     |                                                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:258:17
[INFO] [stderr]     |
[INFO] [stderr] 258 |     let mut e = try!(unary(ts));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:264:70
[INFO] [stderr]     |
[INFO] [stderr] 264 |                 e = Exp::Binary(Box::new(e), BinaryOp::Div, Box::new(try!(unary(ts))))
[INFO] [stderr]     |                                                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:268:71
[INFO] [stderr]     |
[INFO] [stderr] 268 |                 e = Exp::Binary(Box::new(e), BinaryOp::Mult, Box::new(try!(unary(ts))))
[INFO] [stderr]     |                                                                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:272:70
[INFO] [stderr]     |
[INFO] [stderr] 272 |                 e = Exp::Binary(Box::new(e), BinaryOp::Mod, Box::new(try!(unary(ts))))
[INFO] [stderr]     |                                                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:289:54
[INFO] [stderr]     |
[INFO] [stderr] 289 |             Ok(Exp::Unary(UnaryOp::Inverse, Box::new(try!(unary(ts)))))
[INFO] [stderr]     |                                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:293:53
[INFO] [stderr]     |
[INFO] [stderr] 293 |             Ok(Exp::Unary(UnaryOp::Negate, Box::new(try!(unary(ts)))))
[INFO] [stderr]     |                                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:369:16
[INFO] [stderr]     |
[INFO] [stderr] 369 |     let lval = try!(eval(l));
[INFO] [stderr]     |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:370:16
[INFO] [stderr]     |
[INFO] [stderr] 370 |     let rval = try!(eval(r));
[INFO] [stderr]     |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:373:38
[INFO] [stderr]     |
[INFO] [stderr] 373 |         BinaryOp::Add => Ok(Val::Num(try!(expect_num(lval)) + try!(expect_num(rval)))),
[INFO] [stderr]     |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:373:63
[INFO] [stderr]     |
[INFO] [stderr] 373 |         BinaryOp::Add => Ok(Val::Num(try!(expect_num(lval)) + try!(expect_num(rval)))),
[INFO] [stderr]     |                                                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:374:38
[INFO] [stderr]     |
[INFO] [stderr] 374 |         BinaryOp::Sub => Ok(Val::Num(try!(expect_num(lval)) - try!(expect_num(rval)))),
[INFO] [stderr]     |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:374:63
[INFO] [stderr]     |
[INFO] [stderr] 374 |         BinaryOp::Sub => Ok(Val::Num(try!(expect_num(lval)) - try!(expect_num(rval)))),
[INFO] [stderr]     |                                                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:375:39
[INFO] [stderr]     |
[INFO] [stderr] 375 |         BinaryOp::Mult => Ok(Val::Num(try!(expect_num(lval)) * try!(expect_num(rval)))),
[INFO] [stderr]     |                                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:375:64
[INFO] [stderr]     |
[INFO] [stderr] 375 |         BinaryOp::Mult => Ok(Val::Num(try!(expect_num(lval)) * try!(expect_num(rval)))),
[INFO] [stderr]     |                                                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:376:38
[INFO] [stderr]     |
[INFO] [stderr] 376 |         BinaryOp::Div => Ok(Val::Num(try!(expect_num(lval)) / try!(expect_num(rval)))),
[INFO] [stderr]     |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:376:63
[INFO] [stderr]     |
[INFO] [stderr] 376 |         BinaryOp::Div => Ok(Val::Num(try!(expect_num(lval)) / try!(expect_num(rval)))),
[INFO] [stderr]     |                                                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:377:38
[INFO] [stderr]     |
[INFO] [stderr] 377 |         BinaryOp::Mod => Ok(Val::Num(try!(expect_num(lval)) % try!(expect_num(rval)))),
[INFO] [stderr]     |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:377:63
[INFO] [stderr]     |
[INFO] [stderr] 377 |         BinaryOp::Mod => Ok(Val::Num(try!(expect_num(lval)) % try!(expect_num(rval)))),
[INFO] [stderr]     |                                                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:378:38
[INFO] [stderr]     |
[INFO] [stderr] 378 |         BinaryOp::Lt => Ok(Val::Bool(try!(expect_num(lval)) < try!(expect_num(rval)))),
[INFO] [stderr]     |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:378:63
[INFO] [stderr]     |
[INFO] [stderr] 378 |         BinaryOp::Lt => Ok(Val::Bool(try!(expect_num(lval)) < try!(expect_num(rval)))),
[INFO] [stderr]     |                                                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:379:39
[INFO] [stderr]     |
[INFO] [stderr] 379 |         BinaryOp::Lte => Ok(Val::Bool(try!(expect_num(lval)) <= try!(expect_num(rval)))),
[INFO] [stderr]     |                                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:379:65
[INFO] [stderr]     |
[INFO] [stderr] 379 |         BinaryOp::Lte => Ok(Val::Bool(try!(expect_num(lval)) <= try!(expect_num(rval)))),
[INFO] [stderr]     |                                                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:380:38
[INFO] [stderr]     |
[INFO] [stderr] 380 |         BinaryOp::Gt => Ok(Val::Bool(try!(expect_num(lval)) > try!(expect_num(rval)))),
[INFO] [stderr]     |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:380:63
[INFO] [stderr]     |
[INFO] [stderr] 380 |         BinaryOp::Gt => Ok(Val::Bool(try!(expect_num(lval)) > try!(expect_num(rval)))),
[INFO] [stderr]     |                                                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:381:39
[INFO] [stderr]     |
[INFO] [stderr] 381 |         BinaryOp::Gte => Ok(Val::Bool(try!(expect_num(lval)) >= try!(expect_num(rval)))),
[INFO] [stderr]     |                                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:381:65
[INFO] [stderr]     |
[INFO] [stderr] 381 |         BinaryOp::Gte => Ok(Val::Bool(try!(expect_num(lval)) >= try!(expect_num(rval)))),
[INFO] [stderr]     |                                                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:382:38
[INFO] [stderr]     |
[INFO] [stderr] 382 |         BinaryOp::Eq => Ok(Val::Bool(try!(expect_num(lval)) == try!(expect_num(rval)))),
[INFO] [stderr]     |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:382:64
[INFO] [stderr]     |
[INFO] [stderr] 382 |         BinaryOp::Eq => Ok(Val::Bool(try!(expect_num(lval)) == try!(expect_num(rval)))),
[INFO] [stderr]     |                                                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:383:39
[INFO] [stderr]     |
[INFO] [stderr] 383 |         BinaryOp::Neq => Ok(Val::Bool(try!(expect_num(lval)) != try!(expect_num(rval)))),
[INFO] [stderr]     |                                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:383:65
[INFO] [stderr]     |
[INFO] [stderr] 383 |         BinaryOp::Neq => Ok(Val::Bool(try!(expect_num(lval)) != try!(expect_num(rval)))),
[INFO] [stderr]     |                                                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:384:39
[INFO] [stderr]     |
[INFO] [stderr] 384 |         BinaryOp::And => Ok(Val::Bool(try!(expect_bool(lval)) && try!(expect_bool(rval)))),
[INFO] [stderr]     |                                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:384:66
[INFO] [stderr]     |
[INFO] [stderr] 384 |         BinaryOp::And => Ok(Val::Bool(try!(expect_bool(lval)) && try!(expect_bool(rval)))),
[INFO] [stderr]     |                                                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:385:38
[INFO] [stderr]     |
[INFO] [stderr] 385 |         BinaryOp::Or => Ok(Val::Bool(try!(expect_bool(lval)) || try!(expect_bool(rval))))
[INFO] [stderr]     |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:385:65
[INFO] [stderr]     |
[INFO] [stderr] 385 |         BinaryOp::Or => Ok(Val::Bool(try!(expect_bool(lval)) || try!(expect_bool(rval))))
[INFO] [stderr]     |                                                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:390:15
[INFO] [stderr]     |
[INFO] [stderr] 390 |     let val = try!(eval(operand));
[INFO] [stderr]     |               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:392:40
[INFO] [stderr]     |
[INFO] [stderr] 392 |         UnaryOp::Negate => Ok(Val::Num(try!(expect_num(val)) * -1 )),
[INFO] [stderr]     |                                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:393:41
[INFO] [stderr]     |
[INFO] [stderr] 393 |         UnaryOp::Inverse => Ok(Val::Num(try!(expect_num(val)) * -1 )),
[INFO] [stderr]     |                                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:398:8
[INFO] [stderr]     |
[INFO] [stderr] 398 |     if try!(expect_bool(try!(eval(cond)))) {
[INFO] [stderr]     |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:398:25
[INFO] [stderr]     |
[INFO] [stderr] 398 |     if try!(expect_bool(try!(eval(cond)))) {
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:418:29
[INFO] [stderr]     |
[INFO] [stderr] 418 |         let arg_val = match try!(eval(arg)) {
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `env`, `process`
[INFO] [stderr]  --> src/main.rs:7:11
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::{env, io, process};
[INFO] [stderr]   |           ^^^      ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/main.rs:45:1
[INFO] [stderr]    |
[INFO] [stderr] 45 | / lazy_static! {
[INFO] [stderr] 46 | |     static ref VAR_ENV: Env = {
[INFO] [stderr] 47 | |         HashMap::new()
[INFO] [stderr] 48 | |     };
[INFO] [stderr] 49 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/main.rs:45:1
[INFO] [stderr]    |
[INFO] [stderr] 45 | / lazy_static! {
[INFO] [stderr] 46 | |     static ref VAR_ENV: Env = {
[INFO] [stderr] 47 | |         HashMap::new()
[INFO] [stderr] 48 | |     };
[INFO] [stderr] 49 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/main.rs:51:1
[INFO] [stderr]    |
[INFO] [stderr] 51 | / lazy_static! {
[INFO] [stderr] 52 | |     static ref ALIAS_ENV: Env = {
[INFO] [stderr] 53 | |         HashMap::new()
[INFO] [stderr] 54 | |     };
[INFO] [stderr] 55 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/main.rs:51:1
[INFO] [stderr]    |
[INFO] [stderr] 51 | / lazy_static! {
[INFO] [stderr] 52 | |     static ref ALIAS_ENV: Env = {
[INFO] [stderr] 53 | |         HashMap::new()
[INFO] [stderr] 54 | |     };
[INFO] [stderr] 55 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: 64 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rush-ec2517bf1e9cdbd9
[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" "035230b13c72c33c43c8d2bb9ffc04024e8ac77785d0c3dc585e3a9b83af2af1"`
[INFO] running `"docker" "rm" "-f" "035230b13c72c33c43c8d2bb9ffc04024e8ac77785d0c3dc585e3a9b83af2af1"`
[INFO] [stdout] 035230b13c72c33c43c8d2bb9ffc04024e8ac77785d0c3dc585e3a9b83af2af1