[INFO] cloning repository https://github.com/MadScientist2854/jovis
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MadScientist2854/jovis" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMadScientist2854%2Fjovis", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMadScientist2854%2Fjovis'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 597953d03b334f4b0f58804d7b7672a20e955b03
[INFO] checking MadScientist2854/jovis against try#bb9dbf1d07454a99066eabaabd5819851281494b for pr-80920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMadScientist2854%2Fjovis" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MadScientist2854/jovis on toolchain bb9dbf1d07454a99066eabaabd5819851281494b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MadScientist2854/jovis
[INFO] finished tweaking git repo https://github.com/MadScientist2854/jovis
[INFO] tweaked toml for git repo https://github.com/MadScientist2854/jovis written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/MadScientist2854/jovis already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "metadata" "--no-deps" "--format-version=1", 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] 9638ef4b2a3848a7c8973cad83b2f8b6f418b3d3cbda042e4efc1e6640606014
[INFO] running `Command { std: "docker" "start" "-a" "9638ef4b2a3848a7c8973cad83b2f8b6f418b3d3cbda042e4efc1e6640606014", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9638ef4b2a3848a7c8973cad83b2f8b6f418b3d3cbda042e4efc1e6640606014", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9638ef4b2a3848a7c8973cad83b2f8b6f418b3d3cbda042e4efc1e6640606014", kill_on_drop: false }`
[INFO] [stdout] 9638ef4b2a3848a7c8973cad83b2f8b6f418b3d3cbda042e4efc1e6640606014
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=forbid" "-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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f3e2171c5d370270c76261c35c8ec26a0f1c78124690bd940d22ae1ca18de438
[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" "f3e2171c5d370270c76261c35c8ec26a0f1c78124690bd940d22ae1ca18de438", kill_on_drop: false }`
[INFO] [stderr]     Checking jovis v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]   --> src/main.rs:34:14
[INFO] [stdout]    |
[INFO] [stdout] 34 |         Err((line, message)) => {println!("{}", message)}
[INFO] [stdout]    |              ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]   --> src/main.rs:34:14
[INFO] [stdout]    |
[INFO] [stdout] 34 |         Err((line, message)) => {println!("{}", message)}
[INFO] [stdout]    |              ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stdout]    --> src/scanner/mod.rs:162:13
[INFO] [stdout]     |
[INFO] [stdout] 161 |             let val = self.source.get(self.start..self.current).unwrap();
[INFO] [stdout]     |                       ----------- immutable borrow occurs here
[INFO] [stdout] 162 |             self.new_token(TokenType::Literal(Literal::Integer(i32::from_str(val).unwrap())))
[INFO] [stdout]     |             ^^^^ mutable borrow occurs here                                  --- immutable borrow later used here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stdout]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stdout]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stdout]    --> src/scanner/mod.rs:159:13
[INFO] [stdout]     |
[INFO] [stdout] 158 |             let val = self.source.get(self.start..self.current).unwrap();
[INFO] [stdout]     |                       ----------- immutable borrow occurs here
[INFO] [stdout] 159 |             self.new_token(TokenType::Literal(Literal::Float(f32::from_str(val).unwrap())))
[INFO] [stdout]     |             ^^^^ mutable borrow occurs here                                --- immutable borrow later used here
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stdout]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stdout]    --> src/scanner/mod.rs:162:13
[INFO] [stdout]     |
[INFO] [stdout] 161 |             let val = self.source.get(self.start..self.current).unwrap();
[INFO] [stdout]     |                       ----------- immutable borrow occurs here
[INFO] [stdout] 162 |             self.new_token(TokenType::Literal(Literal::Integer(i32::from_str(val).unwrap())))
[INFO] [stdout]     |             ^^^^ mutable borrow occurs here                                  --- immutable borrow later used here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stdout]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stdout]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stdout]    --> src/scanner/mod.rs:159:13
[INFO] [stdout]     |
[INFO] [stdout] 158 |             let val = self.source.get(self.start..self.current).unwrap();
[INFO] [stdout]     |                       ----------- immutable borrow occurs here
[INFO] [stdout] 159 |             self.new_token(TokenType::Literal(Literal::Float(f32::from_str(val).unwrap())))
[INFO] [stdout]     |             ^^^^ mutable borrow occurs here                                --- immutable borrow later used here
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stdout]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "f3e2171c5d370270c76261c35c8ec26a0f1c78124690bd940d22ae1ca18de438", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3e2171c5d370270c76261c35c8ec26a0f1c78124690bd940d22ae1ca18de438", kill_on_drop: false }`
[INFO] [stdout] f3e2171c5d370270c76261c35c8ec26a0f1c78124690bd940d22ae1ca18de438