[INFO] fetching crate rusty_brainfck 0.1.3...
[INFO] testing rusty_brainfck-0.1.3 against 1.95.0 for beta-1.96-2
[INFO] extracting crate rusty_brainfck 0.1.3 into /workspace/builds/worker-3-tc1/source
[INFO] removed /workspace/builds/worker-3-tc1/source/rust-toolchain
[INFO] started tweaking crates.io crate rusty_brainfck 0.1.3
[INFO] finished tweaking crates.io crate rusty_brainfck 0.1.3
[INFO] tweaked toml for crates.io crate rusty_brainfck 0.1.3 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rusty_brainfck 0.1.3 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rusty_brainfck 0.1.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 28352eee96c718b18f8a81c9208391f09eb205ab58e365e68d3e73284cf1adf7
[INFO] running `Command { std: "docker" "start" "-a" "28352eee96c718b18f8a81c9208391f09eb205ab58e365e68d3e73284cf1adf7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "28352eee96c718b18f8a81c9208391f09eb205ab58e365e68d3e73284cf1adf7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28352eee96c718b18f8a81c9208391f09eb205ab58e365e68d3e73284cf1adf7", kill_on_drop: false }`
[INFO] [stdout] 28352eee96c718b18f8a81c9208391f09eb205ab58e365e68d3e73284cf1adf7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 27f135598913e226b7c8535ae31959cfa5382c2e0e16d2377dd3f61d3bb98e04
[INFO] running `Command { std: "docker" "start" "-a" "27f135598913e226b7c8535ae31959cfa5382c2e0e16d2377dd3f61d3bb98e04", kill_on_drop: false }`
[INFO] [stderr]    Compiling rusty_brainfck v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `write`
[INFO] [stdout]  --> src/alloc.rs:2:36
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fmt::{Display, Formatter, write};
[INFO] [stdout]   |                                    ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/alloc.rs:27:38
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn new(program : &'a str) -> BrainFuckInterpreter {
[INFO] [stdout]    |                           --         ^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                           |
[INFO] [stdout]    |                           the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn new(program : &'a str) -> BrainFuckInterpreter<'a> {
[INFO] [stdout]    |                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/alloc.rs:77:20
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn get_ref(&self) -> Box<&BrainFuckInterpreter> {
[INFO] [stdout]    |                    ^^^^^         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                    |             ||
[INFO] [stdout]    |                    |             |the same lifetime is hidden here
[INFO] [stdout]    |                    |             the same lifetime is elided here
[INFO] [stdout]    |                    the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn get_ref(&self) -> Box<&BrainFuckInterpreter<'_>> {
[INFO] [stdout]    |                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/alloc.rs:84:9
[INFO] [stdout]    |
[INFO] [stdout] 84 |         writeln!(f, "Cell Ptr {}", self.tape_ptr);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 84 |         let _ = writeln!(f, "Cell Ptr {}", self.tape_ptr);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/alloc.rs:85:9
[INFO] [stdout]    |
[INFO] [stdout] 85 |         writeln!(f, "Current Cell {} ({})",self.tape[self.tape_ptr], self.tape[self.tape_ptr] as char);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 85 |         let _ = writeln!(f, "Current Cell {} ({})",self.tape[self.tape_ptr], self.tape[self.tape_ptr] as char);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/alloc.rs:86:9
[INFO] [stdout]    |
[INFO] [stdout] 86 |         writeln!(f, "Program Counter: {}",self.program_ptr);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 86 |         let _ = writeln!(f, "Program Counter: {}",self.program_ptr);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/alloc.rs:87:9
[INFO] [stdout]    |
[INFO] [stdout] 87 |         writeln!(f, "Current Command: {}", self.program.as_bytes()[self.program_ptr - 1] as char);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 87 |         let _ = writeln!(f, "Current Command: {}", self.program.as_bytes()[self.program_ptr - 1] as char);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/alloc.rs:89:13
[INFO] [stdout]    |
[INFO] [stdout] 89 |             write!(f, "{},",self.tape[idx]);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 89 |             let _ = write!(f, "{},",self.tape[idx]);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "27f135598913e226b7c8535ae31959cfa5382c2e0e16d2377dd3f61d3bb98e04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27f135598913e226b7c8535ae31959cfa5382c2e0e16d2377dd3f61d3bb98e04", kill_on_drop: false }`
[INFO] [stdout] 27f135598913e226b7c8535ae31959cfa5382c2e0e16d2377dd3f61d3bb98e04
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0823e2593d22aa2db9174948d6d106552da2504e0baeb5d2754f633dd5406daa
[INFO] running `Command { std: "docker" "start" "-a" "0823e2593d22aa2db9174948d6d106552da2504e0baeb5d2754f633dd5406daa", kill_on_drop: false }`
[INFO] [stderr]    Compiling rusty_brainfck v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `write`
[INFO] [stdout]  --> src/alloc.rs:2:36
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fmt::{Display, Formatter, write};
[INFO] [stdout]   |                                    ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/alloc.rs:27:38
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn new(program : &'a str) -> BrainFuckInterpreter {
[INFO] [stdout]    |                           --         ^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                           |
[INFO] [stdout]    |                           the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn new(program : &'a str) -> BrainFuckInterpreter<'a> {
[INFO] [stdout]    |                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/alloc.rs:77:20
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn get_ref(&self) -> Box<&BrainFuckInterpreter> {
[INFO] [stdout]    |                    ^^^^^         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                    |             ||
[INFO] [stdout]    |                    |             |the same lifetime is hidden here
[INFO] [stdout]    |                    |             the same lifetime is elided here
[INFO] [stdout]    |                    the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn get_ref(&self) -> Box<&BrainFuckInterpreter<'_>> {
[INFO] [stdout]    |                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/alloc.rs:84:9
[INFO] [stdout]    |
[INFO] [stdout] 84 |         writeln!(f, "Cell Ptr {}", self.tape_ptr);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 84 |         let _ = writeln!(f, "Cell Ptr {}", self.tape_ptr);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/alloc.rs:85:9
[INFO] [stdout]    |
[INFO] [stdout] 85 |         writeln!(f, "Current Cell {} ({})",self.tape[self.tape_ptr], self.tape[self.tape_ptr] as char);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 85 |         let _ = writeln!(f, "Current Cell {} ({})",self.tape[self.tape_ptr], self.tape[self.tape_ptr] as char);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/alloc.rs:86:9
[INFO] [stdout]    |
[INFO] [stdout] 86 |         writeln!(f, "Program Counter: {}",self.program_ptr);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 86 |         let _ = writeln!(f, "Program Counter: {}",self.program_ptr);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/alloc.rs:87:9
[INFO] [stdout]    |
[INFO] [stdout] 87 |         writeln!(f, "Current Command: {}", self.program.as_bytes()[self.program_ptr - 1] as char);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 87 |         let _ = writeln!(f, "Current Command: {}", self.program.as_bytes()[self.program_ptr - 1] as char);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/alloc.rs:89:13
[INFO] [stdout]    |
[INFO] [stdout] 89 |             write!(f, "{},",self.tape[idx]);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 89 |             let _ = write!(f, "{},",self.tape[idx]);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `write`
[INFO] [stdout]  --> src/alloc.rs:2:36
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fmt::{Display, Formatter, write};
[INFO] [stdout]   |                                    ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/alloc.rs:27:38
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn new(program : &'a str) -> BrainFuckInterpreter {
[INFO] [stdout]    |                           --         ^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                           |
[INFO] [stdout]    |                           the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn new(program : &'a str) -> BrainFuckInterpreter<'a> {
[INFO] [stdout]    |                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/alloc.rs:77:20
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn get_ref(&self) -> Box<&BrainFuckInterpreter> {
[INFO] [stdout]    |                    ^^^^^         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                    |             ||
[INFO] [stdout]    |                    |             |the same lifetime is hidden here
[INFO] [stdout]    |                    |             the same lifetime is elided here
[INFO] [stdout]    |                    the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn get_ref(&self) -> Box<&BrainFuckInterpreter<'_>> {
[INFO] [stdout]    |                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/alloc.rs:84:9
[INFO] [stdout]    |
[INFO] [stdout] 84 |         writeln!(f, "Cell Ptr {}", self.tape_ptr);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 84 |         let _ = writeln!(f, "Cell Ptr {}", self.tape_ptr);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/alloc.rs:85:9
[INFO] [stdout]    |
[INFO] [stdout] 85 |         writeln!(f, "Current Cell {} ({})",self.tape[self.tape_ptr], self.tape[self.tape_ptr] as char);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 85 |         let _ = writeln!(f, "Current Cell {} ({})",self.tape[self.tape_ptr], self.tape[self.tape_ptr] as char);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/alloc.rs:86:9
[INFO] [stdout]    |
[INFO] [stdout] 86 |         writeln!(f, "Program Counter: {}",self.program_ptr);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 86 |         let _ = writeln!(f, "Program Counter: {}",self.program_ptr);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/alloc.rs:87:9
[INFO] [stdout]    |
[INFO] [stdout] 87 |         writeln!(f, "Current Command: {}", self.program.as_bytes()[self.program_ptr - 1] as char);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 87 |         let _ = writeln!(f, "Current Command: {}", self.program.as_bytes()[self.program_ptr - 1] as char);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/alloc.rs:89:13
[INFO] [stdout]    |
[INFO] [stdout] 89 |             write!(f, "{},",self.tape[idx]);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 89 |             let _ = write!(f, "{},",self.tape[idx]);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "0823e2593d22aa2db9174948d6d106552da2504e0baeb5d2754f633dd5406daa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0823e2593d22aa2db9174948d6d106552da2504e0baeb5d2754f633dd5406daa", kill_on_drop: false }`
[INFO] [stdout] 0823e2593d22aa2db9174948d6d106552da2504e0baeb5d2754f633dd5406daa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 600b053558daebcc67b45dc41dae152ecb93aa3799f6193994771da1a3b29a61
[INFO] running `Command { std: "docker" "start" "-a" "600b053558daebcc67b45dc41dae152ecb93aa3799f6193994771da1a3b29a61", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `write`
[INFO] [stderr]  --> src/alloc.rs:2:36
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::fmt::{Display, Formatter, write};
[INFO] [stderr]   |                                    ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stderr]   --> src/alloc.rs:27:38
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub fn new(program : &'a str) -> BrainFuckInterpreter {
[INFO] [stderr]    |                           --         ^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                           |
[INFO] [stderr]    |                           the lifetime is named here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: consistently use `'a`
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub fn new(program : &'a str) -> BrainFuckInterpreter<'a> {
[INFO] [stderr]    |                                                          ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/alloc.rs:77:20
[INFO] [stderr]    |
[INFO] [stderr] 77 |     pub fn get_ref(&self) -> Box<&BrainFuckInterpreter> {
[INFO] [stderr]    |                    ^^^^^         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |                    |             ||
[INFO] [stderr]    |                    |             |the same lifetime is hidden here
[INFO] [stderr]    |                    |             the same lifetime is elided here
[INFO] [stderr]    |                    the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 77 |     pub fn get_ref(&self) -> Box<&BrainFuckInterpreter<'_>> {
[INFO] [stderr]    |                                                       ++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/alloc.rs:84:9
[INFO] [stderr]    |
[INFO] [stderr] 84 |         writeln!(f, "Cell Ptr {}", self.tape_ptr);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 84 |         let _ = writeln!(f, "Cell Ptr {}", self.tape_ptr);
[INFO] [stderr]    |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/alloc.rs:85:9
[INFO] [stderr]    |
[INFO] [stderr] 85 |         writeln!(f, "Current Cell {} ({})",self.tape[self.tape_ptr], self.tape[self.tape_ptr] as char);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 85 |         let _ = writeln!(f, "Current Cell {} ({})",self.tape[self.tape_ptr], self.tape[self.tape_ptr] as char);
[INFO] [stderr]    |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/alloc.rs:86:9
[INFO] [stderr]    |
[INFO] [stderr] 86 |         writeln!(f, "Program Counter: {}",self.program_ptr);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 86 |         let _ = writeln!(f, "Program Counter: {}",self.program_ptr);
[INFO] [stderr]    |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/alloc.rs:87:9
[INFO] [stderr]    |
[INFO] [stderr] 87 |         writeln!(f, "Current Command: {}", self.program.as_bytes()[self.program_ptr - 1] as char);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 87 |         let _ = writeln!(f, "Current Command: {}", self.program.as_bytes()[self.program_ptr - 1] as char);
[INFO] [stderr]    |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/alloc.rs:89:13
[INFO] [stderr]    |
[INFO] [stderr] 89 |             write!(f, "{},",self.tape[idx]);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 89 |             let _ = write!(f, "{},",self.tape[idx]);
[INFO] [stderr]    |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `rusty_brainfck` (lib) generated 8 warnings (run `cargo fix --lib -p rusty_brainfck` to apply 3 suggestions)
[INFO] [stderr] warning: `rusty_brainfck` (lib test) generated 8 warnings (8 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rbf-88fc889a71a4349f)
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rbf_interpreter-d9e823973acd07dd)
[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] [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] [stderr]    Doc-tests rbf
[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" "600b053558daebcc67b45dc41dae152ecb93aa3799f6193994771da1a3b29a61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "600b053558daebcc67b45dc41dae152ecb93aa3799f6193994771da1a3b29a61", kill_on_drop: false }`
[INFO] [stdout] 600b053558daebcc67b45dc41dae152ecb93aa3799f6193994771da1a3b29a61
