[INFO] crate lichen 0.3.7 is already in cache
[INFO] testing lichen-0.3.7 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate lichen 0.3.7 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate lichen 0.3.7 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 crates.io crate lichen 0.3.7
[INFO] finished tweaking crates.io crate lichen 0.3.7
[INFO] tweaked toml for crates.io crate lichen 0.3.7 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 47c59fba403667564ebe67180613be5a42b0dae5782a6746262aa8082a234474
[INFO] running `"docker" "start" "-a" "47c59fba403667564ebe67180613be5a42b0dae5782a6746262aa8082a234474"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling lichen v0.3.7 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parse.rs:194:37
[INFO] [stderr]     |
[INFO] [stderr] 194 | ...                   let r = try!(Var::parse(v));
[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/parse.rs:205:43
[INFO] [stderr]     |
[INFO] [stderr] 205 | ...                   let src = try!(Src::parse(vec![IR::Sym(qsym),
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parse.rs:211:39
[INFO] [stderr]     |
[INFO] [stderr] 211 | ...                   let src = try!(Src::parse(exps));
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/source.rs:310:37
[INFO] [stderr]     |
[INFO] [stderr] 310 |                     let (m, v, a) = try!(Mut::parse(&mut exp));
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/source.rs:319:37
[INFO] [stderr]     |
[INFO] [stderr] 319 | ...                   let m = try!(Src::parse(v_ir));
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/source.rs:341:33
[INFO] [stderr]     |
[INFO] [stderr] 341 |                         let r = try!(Var::parse(n));
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/source.rs:355:33
[INFO] [stderr]     |
[INFO] [stderr] 355 |                         let r = try!(Var::parse(n));
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/source.rs:373:37
[INFO] [stderr]     |
[INFO] [stderr] 373 | ...                   let r = try!(Var::parse(e));
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/source.rs:384:33
[INFO] [stderr]     |
[INFO] [stderr] 384 |                         let r = try!(Logic::parse(exp));
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/source.rs:390:33
[INFO] [stderr]     |
[INFO] [stderr] 390 |                         let r = try!(Logic::parse_comp(keys, exp));
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/var.rs:128:25
[INFO] [stderr]     |
[INFO] [stderr] 128 |                 let r = try!(Var::parse(n));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/var.rs:157:21
[INFO] [stderr]     |
[INFO] [stderr] 157 |             let r = try!(Var::parse(exps.pop().unwrap()));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/logic.rs:98:23
[INFO] [stderr]    |
[INFO] [stderr] 98 |             let var = try!(Var::parse(var));
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/logic.rs:102:23
[INFO] [stderr]     |
[INFO] [stderr] 102 |             let key = try!(Var::parse(key));
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/logic.rs:49:24
[INFO] [stderr]    |
[INFO] [stderr] 49 | pub struct LogicFn(Box<Fn(&Def,&Logics) -> Option<bool> + Send>);
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Def,&Logics) -> Option<bool> + Send`
[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/fun.rs:4:20
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct Fun(Box<FnMut(&[Var], &Def) -> Option<Var> + Send>);
[INFO] [stderr]   |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&[Var], &Def) -> Option<Var> + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/source.rs:240:37
[INFO] [stderr]     |
[INFO] [stderr] 240 |                         if let Some(mut mfn) = fun.get_mut(fun_name) {
[INFO] [stderr]     |                                     ----^^^
[INFO] [stderr]     |                                     |
[INFO] [stderr]     |                                     help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 17 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.49s
[INFO] running `"docker" "inspect" "47c59fba403667564ebe67180613be5a42b0dae5782a6746262aa8082a234474"`
[INFO] running `"docker" "rm" "-f" "47c59fba403667564ebe67180613be5a42b0dae5782a6746262aa8082a234474"`
[INFO] [stdout] 47c59fba403667564ebe67180613be5a42b0dae5782a6746262aa8082a234474
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] f38f3bf9d5bb51a3bcb8f40900af077bd01f8d66059d347e4720067384735aea
[INFO] running `"docker" "start" "-a" "f38f3bf9d5bb51a3bcb8f40900af077bd01f8d66059d347e4720067384735aea"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling lichen v0.3.7 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parse.rs:194:37
[INFO] [stderr]     |
[INFO] [stderr] 194 | ...                   let r = try!(Var::parse(v));
[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/parse.rs:205:43
[INFO] [stderr]     |
[INFO] [stderr] 205 | ...                   let src = try!(Src::parse(vec![IR::Sym(qsym),
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parse.rs:211:39
[INFO] [stderr]     |
[INFO] [stderr] 211 | ...                   let src = try!(Src::parse(exps));
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/source.rs:310:37
[INFO] [stderr]     |
[INFO] [stderr] 310 |                     let (m, v, a) = try!(Mut::parse(&mut exp));
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/source.rs:319:37
[INFO] [stderr]     |
[INFO] [stderr] 319 | ...                   let m = try!(Src::parse(v_ir));
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/source.rs:341:33
[INFO] [stderr]     |
[INFO] [stderr] 341 |                         let r = try!(Var::parse(n));
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/source.rs:355:33
[INFO] [stderr]     |
[INFO] [stderr] 355 |                         let r = try!(Var::parse(n));
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/source.rs:373:37
[INFO] [stderr]     |
[INFO] [stderr] 373 | ...                   let r = try!(Var::parse(e));
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/source.rs:384:33
[INFO] [stderr]     |
[INFO] [stderr] 384 |                         let r = try!(Logic::parse(exp));
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/source.rs:390:33
[INFO] [stderr]     |
[INFO] [stderr] 390 |                         let r = try!(Logic::parse_comp(keys, exp));
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/var.rs:128:25
[INFO] [stderr]     |
[INFO] [stderr] 128 |                 let r = try!(Var::parse(n));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/var.rs:157:21
[INFO] [stderr]     |
[INFO] [stderr] 157 |             let r = try!(Var::parse(exps.pop().unwrap()));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/logic.rs:98:23
[INFO] [stderr]    |
[INFO] [stderr] 98 |             let var = try!(Var::parse(var));
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/logic.rs:102:23
[INFO] [stderr]     |
[INFO] [stderr] 102 |             let key = try!(Var::parse(key));
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/logic.rs:49:24
[INFO] [stderr]    |
[INFO] [stderr] 49 | pub struct LogicFn(Box<Fn(&Def,&Logics) -> Option<bool> + Send>);
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Def,&Logics) -> Option<bool> + Send`
[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/fun.rs:4:20
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct Fun(Box<FnMut(&[Var], &Def) -> Option<Var> + Send>);
[INFO] [stderr]   |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&[Var], &Def) -> Option<Var> + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/source.rs:240:37
[INFO] [stderr]     |
[INFO] [stderr] 240 |                         if let Some(mut mfn) = fun.get_mut(fun_name) {
[INFO] [stderr]     |                                     ----^^^
[INFO] [stderr]     |                                     |
[INFO] [stderr]     |                                     help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 17 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parse.rs:194:37
[INFO] [stderr]     |
[INFO] [stderr] 194 | ...                   let r = try!(Var::parse(v));
[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/parse.rs:205:43
[INFO] [stderr]     |
[INFO] [stderr] 205 | ...                   let src = try!(Src::parse(vec![IR::Sym(qsym),
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parse.rs:211:39
[INFO] [stderr]     |
[INFO] [stderr] 211 | ...                   let src = try!(Src::parse(exps));
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/source.rs:310:37
[INFO] [stderr]     |
[INFO] [stderr] 310 |                     let (m, v, a) = try!(Mut::parse(&mut exp));
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/source.rs:319:37
[INFO] [stderr]     |
[INFO] [stderr] 319 | ...                   let m = try!(Src::parse(v_ir));
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/source.rs:341:33
[INFO] [stderr]     |
[INFO] [stderr] 341 |                         let r = try!(Var::parse(n));
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/source.rs:355:33
[INFO] [stderr]     |
[INFO] [stderr] 355 |                         let r = try!(Var::parse(n));
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/source.rs:373:37
[INFO] [stderr]     |
[INFO] [stderr] 373 | ...                   let r = try!(Var::parse(e));
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/source.rs:384:33
[INFO] [stderr]     |
[INFO] [stderr] 384 |                         let r = try!(Logic::parse(exp));
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/source.rs:390:33
[INFO] [stderr]     |
[INFO] [stderr] 390 |                         let r = try!(Logic::parse_comp(keys, exp));
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/var.rs:128:25
[INFO] [stderr]     |
[INFO] [stderr] 128 |                 let r = try!(Var::parse(n));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/var.rs:157:21
[INFO] [stderr]     |
[INFO] [stderr] 157 |             let r = try!(Var::parse(exps.pop().unwrap()));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/logic.rs:98:23
[INFO] [stderr]    |
[INFO] [stderr] 98 |             let var = try!(Var::parse(var));
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/logic.rs:102:23
[INFO] [stderr]     |
[INFO] [stderr] 102 |             let key = try!(Var::parse(key));
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/logic.rs:49:24
[INFO] [stderr]    |
[INFO] [stderr] 49 | pub struct LogicFn(Box<Fn(&Def,&Logics) -> Option<bool> + Send>);
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Def,&Logics) -> Option<bool> + Send`
[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/fun.rs:4:20
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct Fun(Box<FnMut(&[Var], &Def) -> Option<Var> + Send>);
[INFO] [stderr]   |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&[Var], &Def) -> Option<Var> + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/source.rs:240:37
[INFO] [stderr]     |
[INFO] [stderr] 240 |                         if let Some(mut mfn) = fun.get_mut(fun_name) {
[INFO] [stderr]     |                                     ----^^^
[INFO] [stderr]     |                                     |
[INFO] [stderr]     |                                     help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 17 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.45s
[INFO] running `"docker" "inspect" "f38f3bf9d5bb51a3bcb8f40900af077bd01f8d66059d347e4720067384735aea"`
[INFO] running `"docker" "rm" "-f" "f38f3bf9d5bb51a3bcb8f40900af077bd01f8d66059d347e4720067384735aea"`
[INFO] [stdout] f38f3bf9d5bb51a3bcb8f40900af077bd01f8d66059d347e4720067384735aea
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] cddf68dac0e6e193e0e5e9bf9dd2f0434ed82490c29c14061c30ac2c2ad834ce
[INFO] running `"docker" "start" "-a" "cddf68dac0e6e193e0e5e9bf9dd2f0434ed82490c29c14061c30ac2c2ad834ce"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parse.rs:194:37
[INFO] [stderr]     |
[INFO] [stderr] 194 | ...                   let r = try!(Var::parse(v));
[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/parse.rs:205:43
[INFO] [stderr]     |
[INFO] [stderr] 205 | ...                   let src = try!(Src::parse(vec![IR::Sym(qsym),
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parse.rs:211:39
[INFO] [stderr]     |
[INFO] [stderr] 211 | ...                   let src = try!(Src::parse(exps));
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/source.rs:310:37
[INFO] [stderr]     |
[INFO] [stderr] 310 |                     let (m, v, a) = try!(Mut::parse(&mut exp));
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/source.rs:319:37
[INFO] [stderr]     |
[INFO] [stderr] 319 | ...                   let m = try!(Src::parse(v_ir));
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/source.rs:341:33
[INFO] [stderr]     |
[INFO] [stderr] 341 |                         let r = try!(Var::parse(n));
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/source.rs:355:33
[INFO] [stderr]     |
[INFO] [stderr] 355 |                         let r = try!(Var::parse(n));
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/source.rs:373:37
[INFO] [stderr]     |
[INFO] [stderr] 373 | ...                   let r = try!(Var::parse(e));
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/source.rs:384:33
[INFO] [stderr]     |
[INFO] [stderr] 384 |                         let r = try!(Logic::parse(exp));
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/source.rs:390:33
[INFO] [stderr]     |
[INFO] [stderr] 390 |                         let r = try!(Logic::parse_comp(keys, exp));
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/var.rs:128:25
[INFO] [stderr]     |
[INFO] [stderr] 128 |                 let r = try!(Var::parse(n));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/var.rs:157:21
[INFO] [stderr]     |
[INFO] [stderr] 157 |             let r = try!(Var::parse(exps.pop().unwrap()));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/logic.rs:98:23
[INFO] [stderr]    |
[INFO] [stderr] 98 |             let var = try!(Var::parse(var));
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/logic.rs:102:23
[INFO] [stderr]     |
[INFO] [stderr] 102 |             let key = try!(Var::parse(key));
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/logic.rs:49:24
[INFO] [stderr]    |
[INFO] [stderr] 49 | pub struct LogicFn(Box<Fn(&Def,&Logics) -> Option<bool> + Send>);
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Def,&Logics) -> Option<bool> + Send`
[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/fun.rs:4:20
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct Fun(Box<FnMut(&[Var], &Def) -> Option<Var> + Send>);
[INFO] [stderr]   |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&[Var], &Def) -> Option<Var> + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/source.rs:240:37
[INFO] [stderr]     |
[INFO] [stderr] 240 |                         if let Some(mut mfn) = fun.get_mut(fun_name) {
[INFO] [stderr]     |                                     ----^^^
[INFO] [stderr]     |                                     |
[INFO] [stderr]     |                                     help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 17 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parse.rs:194:37
[INFO] [stderr]     |
[INFO] [stderr] 194 | ...                   let r = try!(Var::parse(v));
[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/parse.rs:205:43
[INFO] [stderr]     |
[INFO] [stderr] 205 | ...                   let src = try!(Src::parse(vec![IR::Sym(qsym),
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parse.rs:211:39
[INFO] [stderr]     |
[INFO] [stderr] 211 | ...                   let src = try!(Src::parse(exps));
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/source.rs:310:37
[INFO] [stderr]     |
[INFO] [stderr] 310 |                     let (m, v, a) = try!(Mut::parse(&mut exp));
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/source.rs:319:37
[INFO] [stderr]     |
[INFO] [stderr] 319 | ...                   let m = try!(Src::parse(v_ir));
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/source.rs:341:33
[INFO] [stderr]     |
[INFO] [stderr] 341 |                         let r = try!(Var::parse(n));
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/source.rs:355:33
[INFO] [stderr]     |
[INFO] [stderr] 355 |                         let r = try!(Var::parse(n));
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/source.rs:373:37
[INFO] [stderr]     |
[INFO] [stderr] 373 | ...                   let r = try!(Var::parse(e));
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/source.rs:384:33
[INFO] [stderr]     |
[INFO] [stderr] 384 |                         let r = try!(Logic::parse(exp));
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/source.rs:390:33
[INFO] [stderr]     |
[INFO] [stderr] 390 |                         let r = try!(Logic::parse_comp(keys, exp));
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/var.rs:128:25
[INFO] [stderr]     |
[INFO] [stderr] 128 |                 let r = try!(Var::parse(n));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/var.rs:157:21
[INFO] [stderr]     |
[INFO] [stderr] 157 |             let r = try!(Var::parse(exps.pop().unwrap()));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/logic.rs:98:23
[INFO] [stderr]    |
[INFO] [stderr] 98 |             let var = try!(Var::parse(var));
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/logic.rs:102:23
[INFO] [stderr]     |
[INFO] [stderr] 102 |             let key = try!(Var::parse(key));
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/logic.rs:49:24
[INFO] [stderr]    |
[INFO] [stderr] 49 | pub struct LogicFn(Box<Fn(&Def,&Logics) -> Option<bool> + Send>);
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Def,&Logics) -> Option<bool> + Send`
[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/fun.rs:4:20
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct Fun(Box<FnMut(&[Var], &Def) -> Option<Var> + Send>);
[INFO] [stderr]   |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&[Var], &Def) -> Option<Var> + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/source.rs:240:37
[INFO] [stderr]     |
[INFO] [stderr] 240 |                         if let Some(mut mfn) = fun.get_mut(fun_name) {
[INFO] [stderr]     |                                     ----^^^
[INFO] [stderr]     |                                     |
[INFO] [stderr]     |                                     help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 17 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/lichen-0bd93e258cc0ff70
[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] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/samples-6472d09b1793dad2
[INFO] [stdout] running 1 test
[INFO] [stdout] test bitrot ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/state-971eacc1faec8ab2
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test parse_cust_fn ... ok
[INFO] [stdout] test save_state ... ok
[INFO] [stdout] test parse_def_block ... ok
[INFO] [stdout] test validate_or_block ... ok
[INFO] [stdout] test state_mut ... ok
[INFO] [stdout] test validate_def_block ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/stream-4dbbd40ec3caf1a0
[INFO] [stdout] test validate_when_block ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test stream_parser ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/unit-da84eec684ca8f89
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test parse_eval_str_block ... ok
[INFO] [stdout] test parse_next_back_restart ... ok
[INFO] [stdout] test parse_select_nodes ... ok
[INFO] [stdout] test parse_or_logic ... ok
[INFO] [stdout] test obj_dupe_mut ... ok
[INFO] [stdout] test inline_logic_inv ... ok
[INFO] [stdout] test validate_qsym_block ... ok
[INFO] [stdout] test obj_from_scratch ... ok
[INFO] [stdout] test parse_return_varkind ... ok
[INFO] [stdout] test parse_qsym_block ... ok
[INFO] [stdout] test parse_compare_env_block ... ok
[INFO] [stdout] test parse_qsym_comp_block ... ok
[INFO] [stderr]    Doc-tests lichen
[INFO] [stdout] test parse_follow_nodes ... ok
[INFO] [stdout] test parse_block ... ok
[INFO] [stdout] test obj_dupe_as_nested ... ok
[INFO] [stdout] test parse_if_vec_block ... ok
[INFO] [stdout] test validate_inv_logic ... ok
[INFO] [stdout] test validate_reflection_block ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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" "cddf68dac0e6e193e0e5e9bf9dd2f0434ed82490c29c14061c30ac2c2ad834ce"`
[INFO] running `"docker" "rm" "-f" "cddf68dac0e6e193e0e5e9bf9dd2f0434ed82490c29c14061c30ac2c2ad834ce"`
[INFO] [stdout] cddf68dac0e6e193e0e5e9bf9dd2f0434ed82490c29c14061c30ac2c2ad834ce