[INFO] fetching crate yultsur 0.1.0...
[INFO] testing yultsur-0.1.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate yultsur 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate yultsur 0.1.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate yultsur 0.1.0
[INFO] finished tweaking crates.io crate yultsur 0.1.0
[INFO] tweaked toml for crates.io crate yultsur 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 439e46fb1e2a56121e000d353929ff2143d8f9076131da968e5d2066fcc1aac5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "439e46fb1e2a56121e000d353929ff2143d8f9076131da968e5d2066fcc1aac5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "439e46fb1e2a56121e000d353929ff2143d8f9076131da968e5d2066fcc1aac5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "439e46fb1e2a56121e000d353929ff2143d8f9076131da968e5d2066fcc1aac5", kill_on_drop: false }`
[INFO] [stdout] 439e46fb1e2a56121e000d353929ff2143d8f9076131da968e5d2066fcc1aac5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 045dcdb75ab9d4b017fd490a224850690b4a4fe654c3fc36c752b5938635c102
[INFO] running `Command { std: "docker" "start" "-a" "045dcdb75ab9d4b017fd490a224850690b4a4fe654c3fc36c752b5938635c102", kill_on_drop: false }`
[INFO] [stderr]    Compiling yultsur v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/yul.rs:148:9
[INFO] [stdout]     |
[INFO] [stdout] 148 |         try!(write!(f, "{}", self.literal));
[INFO] [stdout]     |         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/yul.rs:159:9
[INFO] [stdout]     |
[INFO] [stdout] 159 |         try!(write!(f, "{}", self.identifier));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/yul.rs:170:9
[INFO] [stdout]     |
[INFO] [stdout] 170 |         try!(write!(f, "{}(", self.identifier));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/yul.rs:171:9
[INFO] [stdout]     |
[INFO] [stdout] 171 |         try!(write!(
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/yul.rs:186:9
[INFO] [stdout]     |
[INFO] [stdout] 186 |         try!(write!(f, "function {}(", self.name));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/yul.rs:187:9
[INFO] [stdout]     |
[INFO] [stdout] 187 |         try!(write!(
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/yul.rs:196:9
[INFO] [stdout]     |
[INFO] [stdout] 196 |         try!(write!(f, ")"));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/yul.rs:198:13
[INFO] [stdout]     |
[INFO] [stdout] 198 |             try!(write!(f, " -> "));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/yul.rs:199:13
[INFO] [stdout]     |
[INFO] [stdout] 199 |             try!(write!(
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/yul.rs:219:9
[INFO] [stdout]     |
[INFO] [stdout] 219 |         try!(write!(f, "let "));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/yul.rs:220:9
[INFO] [stdout]     |
[INFO] [stdout] 220 |         try!(write!(
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/yul.rs:243:9
[INFO] [stdout]     |
[INFO] [stdout] 243 |         try!(write!(
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/yul.rs:288:9
[INFO] [stdout]     |
[INFO] [stdout] 288 |         try!(write!(f, "switch {} ", self.expression));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/yul.rs:290:13
[INFO] [stdout]     |
[INFO] [stdout] 290 |             try!(write!(f, "{} ", case));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/yul.rs:327:9
[INFO] [stdout]     |
[INFO] [stdout] 327 |         try!(write!(f, "{{"));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/yul.rs:329:13
[INFO] [stdout]     |
[INFO] [stdout] 329 |             try!(write!(f, " {}", statement));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `custom`
[INFO] [stdout]   --> src/validator.rs:11:26
[INFO] [stdout]    |
[INFO] [stdout] 11 |             Type::Custom(ref custom) => Ok(()),
[INFO] [stdout]    |                          ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_custom`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `typed`
[INFO] [stdout]  --> src/validator.rs:8:24
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fn validate(&self, typed: bool) -> Result<(), String> {
[INFO] [stdout]   |                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_typed`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.12s
[INFO] running `Command { std: "docker" "inspect" "045dcdb75ab9d4b017fd490a224850690b4a4fe654c3fc36c752b5938635c102", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "045dcdb75ab9d4b017fd490a224850690b4a4fe654c3fc36c752b5938635c102", kill_on_drop: false }`
[INFO] [stdout] 045dcdb75ab9d4b017fd490a224850690b4a4fe654c3fc36c752b5938635c102
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2c67f78bc196b2a91fa2bfacd7e9ad676843dcb3f52a733b9206704af7c3a9f4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2c67f78bc196b2a91fa2bfacd7e9ad676843dcb3f52a733b9206704af7c3a9f4", kill_on_drop: false }`
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/yul.rs:148:9
[INFO] [stdout]     |
[INFO] [stdout] 148 |         try!(write!(f, "{}", self.literal));
[INFO] [stdout]     |         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling yultsur v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/yul.rs:159:9
[INFO] [stdout]     |
[INFO] [stdout] 159 |         try!(write!(f, "{}", self.identifier));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/yul.rs:170:9
[INFO] [stdout]     |
[INFO] [stdout] 170 |         try!(write!(f, "{}(", self.identifier));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/yul.rs:171:9
[INFO] [stdout]     |
[INFO] [stdout] 171 |         try!(write!(
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/yul.rs:186:9
[INFO] [stdout]     |
[INFO] [stdout] 186 |         try!(write!(f, "function {}(", self.name));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/yul.rs:187:9
[INFO] [stdout]     |
[INFO] [stdout] 187 |         try!(write!(
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/yul.rs:196:9
[INFO] [stdout]     |
[INFO] [stdout] 196 |         try!(write!(f, ")"));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/yul.rs:198:13
[INFO] [stdout]     |
[INFO] [stdout] 198 |             try!(write!(f, " -> "));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/yul.rs:199:13
[INFO] [stdout]     |
[INFO] [stdout] 199 |             try!(write!(
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/yul.rs:219:9
[INFO] [stdout]     |
[INFO] [stdout] 219 |         try!(write!(f, "let "));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/yul.rs:220:9
[INFO] [stdout]     |
[INFO] [stdout] 220 |         try!(write!(
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/yul.rs:243:9
[INFO] [stdout]     |
[INFO] [stdout] 243 |         try!(write!(
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/yul.rs:288:9
[INFO] [stdout]     |
[INFO] [stdout] 288 |         try!(write!(f, "switch {} ", self.expression));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/yul.rs:290:13
[INFO] [stdout]     |
[INFO] [stdout] 290 |             try!(write!(f, "{} ", case));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/yul.rs:327:9
[INFO] [stdout]     |
[INFO] [stdout] 327 |         try!(write!(f, "{{"));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/yul.rs:329:13
[INFO] [stdout]     |
[INFO] [stdout] 329 |             try!(write!(f, " {}", statement));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `custom`
[INFO] [stdout]   --> src/validator.rs:11:26
[INFO] [stdout]    |
[INFO] [stdout] 11 |             Type::Custom(ref custom) => Ok(()),
[INFO] [stdout]    |                          ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_custom`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `typed`
[INFO] [stdout]  --> src/validator.rs:8:24
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fn validate(&self, typed: bool) -> Result<(), String> {
[INFO] [stdout]   |                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_typed`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/yul.rs:148:9
[INFO] [stdout]     |
[INFO] [stdout] 148 |         try!(write!(f, "{}", self.literal));
[INFO] [stdout]     |         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/yul.rs:159:9
[INFO] [stdout]     |
[INFO] [stdout] 159 |         try!(write!(f, "{}", self.identifier));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/yul.rs:170:9
[INFO] [stdout]     |
[INFO] [stdout] 170 |         try!(write!(f, "{}(", self.identifier));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/yul.rs:171:9
[INFO] [stdout]     |
[INFO] [stdout] 171 |         try!(write!(
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/yul.rs:186:9
[INFO] [stdout]     |
[INFO] [stdout] 186 |         try!(write!(f, "function {}(", self.name));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/yul.rs:187:9
[INFO] [stdout]     |
[INFO] [stdout] 187 |         try!(write!(
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/yul.rs:196:9
[INFO] [stdout]     |
[INFO] [stdout] 196 |         try!(write!(f, ")"));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/yul.rs:198:13
[INFO] [stdout]     |
[INFO] [stdout] 198 |             try!(write!(f, " -> "));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/yul.rs:199:13
[INFO] [stdout]     |
[INFO] [stdout] 199 |             try!(write!(
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/yul.rs:219:9
[INFO] [stdout]     |
[INFO] [stdout] 219 |         try!(write!(f, "let "));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/yul.rs:220:9
[INFO] [stdout]     |
[INFO] [stdout] 220 |         try!(write!(
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/yul.rs:243:9
[INFO] [stdout]     |
[INFO] [stdout] 243 |         try!(write!(
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/yul.rs:288:9
[INFO] [stdout]     |
[INFO] [stdout] 288 |         try!(write!(f, "switch {} ", self.expression));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/yul.rs:290:13
[INFO] [stdout]     |
[INFO] [stdout] 290 |             try!(write!(f, "{} ", case));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/yul.rs:327:9
[INFO] [stdout]     |
[INFO] [stdout] 327 |         try!(write!(f, "{{"));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/yul.rs:329:13
[INFO] [stdout]     |
[INFO] [stdout] 329 |             try!(write!(f, " {}", statement));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `custom`
[INFO] [stdout]   --> src/validator.rs:11:26
[INFO] [stdout]    |
[INFO] [stdout] 11 |             Type::Custom(ref custom) => Ok(()),
[INFO] [stdout]    |                          ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_custom`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `typed`
[INFO] [stdout]  --> src/validator.rs:8:24
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fn validate(&self, typed: bool) -> Result<(), String> {
[INFO] [stdout]   |                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_typed`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.65s
[INFO] running `Command { std: "docker" "inspect" "2c67f78bc196b2a91fa2bfacd7e9ad676843dcb3f52a733b9206704af7c3a9f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c67f78bc196b2a91fa2bfacd7e9ad676843dcb3f52a733b9206704af7c3a9f4", kill_on_drop: false }`
[INFO] [stdout] 2c67f78bc196b2a91fa2bfacd7e9ad676843dcb3f52a733b9206704af7c3a9f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a6791fc8ef4d9a979463f8ed5a6e8d698d42f313792cae68dcb30a46eb9fef59
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a6791fc8ef4d9a979463f8ed5a6e8d698d42f313792cae68dcb30a46eb9fef59", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/yul.rs:148:9
[INFO] [stderr]     |
[INFO] [stderr] 148 |         try!(write!(f, "{}", self.literal));
[INFO] [stderr]     |         ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/yul.rs:159:9
[INFO] [stderr]     |
[INFO] [stderr] 159 |         try!(write!(f, "{}", self.identifier));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/yul.rs:170:9
[INFO] [stderr]     |
[INFO] [stderr] 170 |         try!(write!(f, "{}(", self.identifier));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/yul.rs:171:9
[INFO] [stderr]     |
[INFO] [stderr] 171 |         try!(write!(
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/yul.rs:186:9
[INFO] [stderr]     |
[INFO] [stderr] 186 |         try!(write!(f, "function {}(", self.name));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/yul.rs:187:9
[INFO] [stderr]     |
[INFO] [stderr] 187 |         try!(write!(
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/yul.rs:196:9
[INFO] [stderr]     |
[INFO] [stderr] 196 |         try!(write!(f, ")"));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/yul.rs:198:13
[INFO] [stderr]     |
[INFO] [stderr] 198 |             try!(write!(f, " -> "));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/yul.rs:199:13
[INFO] [stderr]     |
[INFO] [stderr] 199 |             try!(write!(
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/yul.rs:219:9
[INFO] [stderr]     |
[INFO] [stderr] 219 |         try!(write!(f, "let "));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/yul.rs:220:9
[INFO] [stderr]     |
[INFO] [stderr] 220 |         try!(write!(
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/yul.rs:243:9
[INFO] [stderr]     |
[INFO] [stderr] 243 |         try!(write!(
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/yul.rs:288:9
[INFO] [stderr]     |
[INFO] [stderr] 288 |         try!(write!(f, "switch {} ", self.expression));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/yul.rs:290:13
[INFO] [stderr]     |
[INFO] [stderr] 290 |             try!(write!(f, "{} ", case));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/yul.rs:327:9
[INFO] [stderr]     |
[INFO] [stderr] 327 |         try!(write!(f, "{{"));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/yul.rs:329:13
[INFO] [stderr]     |
[INFO] [stderr] 329 |             try!(write!(f, " {}", statement));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `custom`
[INFO] [stderr]   --> src/validator.rs:11:26
[INFO] [stderr]    |
[INFO] [stderr] 11 |             Type::Custom(ref custom) => Ok(()),
[INFO] [stderr]    |                          ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_custom`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `typed`
[INFO] [stderr]  --> src/validator.rs:8:24
[INFO] [stderr]   |
[INFO] [stderr] 8 |     fn validate(&self, typed: bool) -> Result<(), String> {
[INFO] [stderr]   |                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_typed`
[INFO] [stderr] 
[INFO] [stderr] warning: 18 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/yul.rs:148:9
[INFO] [stderr]     |
[INFO] [stderr] 148 |         try!(write!(f, "{}", self.literal));
[INFO] [stderr]     |         ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/yul.rs:159:9
[INFO] [stderr]     |
[INFO] [stderr] 159 |         try!(write!(f, "{}", self.identifier));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/yul.rs:170:9
[INFO] [stderr]     |
[INFO] [stderr] 170 |         try!(write!(f, "{}(", self.identifier));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/yul.rs:171:9
[INFO] [stderr]     |
[INFO] [stderr] 171 |         try!(write!(
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/yul.rs:186:9
[INFO] [stderr]     |
[INFO] [stderr] 186 |         try!(write!(f, "function {}(", self.name));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout] running 31 tests
[INFO] [stderr]    --> src/yul.rs:187:9
[INFO] [stdout] test validator::tests::basic_type ... ok
[INFO] [stderr]     |
[INFO] [stdout] test validator::tests::typed_literal ... ok
[INFO] [stderr] 187 |         try!(write!(
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/yul.rs:196:9
[INFO] [stderr]     |
[INFO] [stderr] 196 |         try!(write!(f, ")"));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/yul.rs:198:13
[INFO] [stderr]     |
[INFO] [stderr] 198 |             try!(write!(f, " -> "));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/yul.rs:199:13
[INFO] [stderr]     |
[INFO] [stderr] 199 |             try!(write!(
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/yul.rs:219:9
[INFO] [stderr]     |
[INFO] [stderr] 219 |         try!(write!(f, "let "));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/yul.rs:220:9
[INFO] [stderr]     |
[INFO] [stderr] 220 |         try!(write!(
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/yul.rs:243:9
[INFO] [stderr]     |
[INFO] [stderr] 243 |         try!(write!(
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/yul.rs:288:9
[INFO] [stderr]     |
[INFO] [stderr] 288 |         try!(write!(f, "switch {} ", self.expression));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/yul.rs:290:13
[INFO] [stderr]     |
[INFO] [stderr] 290 |             try!(write!(f, "{} ", case));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/yul.rs:327:9
[INFO] [stderr]     |
[INFO] [stderr] 327 |         try!(write!(f, "{{"));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/yul.rs:329:13
[INFO] [stderr]     |
[INFO] [stderr] 329 |             try!(write!(f, " {}", statement));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `custom`
[INFO] [stderr]   --> src/validator.rs:11:26
[INFO] [stderr]    |
[INFO] [stderr] 11 |             Type::Custom(ref custom) => Ok(()),
[INFO] [stderr]    |                          ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_custom`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `typed`
[INFO] [stderr]  --> src/validator.rs:8:24
[INFO] [stderr]   |
[INFO] [stderr] 8 |     fn validate(&self, typed: bool) -> Result<(), String> {
[INFO] [stderr]   |                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_typed`
[INFO] [stderr] 
[INFO] [stderr] warning: 18 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/yultsur-48a625c28ac1afb6
[INFO] [stdout] test yul::tests::functioncall ... ok
[INFO] [stdout] test yul::tests::functiondefinition_basic ... ok
[INFO] [stdout] test yul::tests::block_nested ... ok
[INFO] [stdout] test yul::tests::forloop ... ok
[INFO] [stdout] test yul::tests::case ... ok
[INFO] [stdout] test yul::tests::functiondefinition_multi ... ok
[INFO] [stdout] test yul::tests::assignment_multi ... ok
[INFO] [stdout] test yul::tests::functiondefinition_single_ret ... ok
[INFO] [stdout] test validator::tests::case_invalid_default ... ok
[INFO] [stdout] test validator::tests::custom_type ... ok
[INFO] [stdout] test validator::tests::untyped_literal ... ok
[INFO] [stdout] test yul::tests::literal ... ok
[INFO] [stdout] test yul::tests::literal_typed ... ok
[INFO] [stdout] test yul::tests::functiondefinition_single_arg ... ok
[INFO] [stdout] test validator::tests::complex_example ... ok
[INFO] [stdout] test yul::tests::identifier_typed ... ok
[INFO] [stdout] test validator::tests::invalid_custom_type ... ok
[INFO] [stdout] test yul::tests::literal_custom_typed ... ok
[INFO] [stdout] test yul::tests::variabledeclaration_multi ... ok
[INFO] [stdout] test yul::tests::variabledeclaration_empty ... ok
[INFO] [stdout] test yul::tests::variabledeclaration_single ... ok
[INFO] [stdout] test yul::tests::switch ... ok
[INFO] [stdout] test yul::tests::identifierr_custom_typed ... ok
[INFO] [stdout] test yul::tests::assignment_single ... ok
[INFO] [stdout] test yul::tests::block_empty ... ok
[INFO] [stdout] test yul::tests::block_literal ... ok
[INFO] [stdout] test yul::tests::case_default ... ok
[INFO] [stderr]    Doc-tests yultsur
[INFO] [stdout] test yul::tests::identifier ... ok
[INFO] [stdout] test yul::tests::if_statement ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 31 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a6791fc8ef4d9a979463f8ed5a6e8d698d42f313792cae68dcb30a46eb9fef59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6791fc8ef4d9a979463f8ed5a6e8d698d42f313792cae68dcb30a46eb9fef59", kill_on_drop: false }`
[INFO] [stdout] a6791fc8ef4d9a979463f8ed5a6e8d698d42f313792cae68dcb30a46eb9fef59