[INFO] cloning repository https://github.com/SybelBlue/codewars-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SybelBlue/codewars-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSybelBlue%2Fcodewars-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSybelBlue%2Fcodewars-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 32b262cb9752f1316e296126545f9f45c91def4e
[INFO] checking SybelBlue/codewars-rust against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSybelBlue%2Fcodewars-rust" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SybelBlue/codewars-rust on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/SybelBlue/codewars-rust
[INFO] finished tweaking git repo https://github.com/SybelBlue/codewars-rust
[INFO] tweaked toml for git repo https://github.com/SybelBlue/codewars-rust written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/SybelBlue/codewars-rust 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7127ea324ad6a5787cacb2002ad4a302dde3aca21a4254dbce977303514c1ca5
[INFO] running `Command { std: "docker" "start" "-a" "7127ea324ad6a5787cacb2002ad4a302dde3aca21a4254dbce977303514c1ca5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7127ea324ad6a5787cacb2002ad4a302dde3aca21a4254dbce977303514c1ca5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7127ea324ad6a5787cacb2002ad4a302dde3aca21a4254dbce977303514c1ca5", kill_on_drop: false }`
[INFO] [stdout] 7127ea324ad6a5787cacb2002ad4a302dde3aca21a4254dbce977303514c1ca5
[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=forbid" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aff5ebe6dcfeab437c2c92481c6af302696a9d740c74bdac5cb4f2ab07febd24
[INFO] running `Command { std: "docker" "start" "-a" "aff5ebe6dcfeab437c2c92481c6af302696a9d740c74bdac5cb4f2ab07febd24", kill_on_drop: false }`
[INFO] [stderr]     Checking codewars-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/assembler.rs:31:77
[INFO] [stdout]    |
[INFO] [stdout] 31 |     registers[*r as usize - 'a' as usize].as_mut().unwrap_or_else(|| panic!(format!("Accessed unintialized register '{}'", r)))
[INFO] [stdout]    |                                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 31 -     registers[*r as usize - 'a' as usize].as_mut().unwrap_or_else(|| panic!(format!("Accessed unintialized register '{}'", r)))
[INFO] [stdout] 31 +     registers[*r as usize - 'a' as usize].as_mut().unwrap_or_else(|| panic!("Accessed unintialized register '{}'", r))
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/assembler.rs:41:46
[INFO] [stdout]    |
[INFO] [stdout] 41 |             parse(line).map_err(|msg| panic!(format!("error \"{}\" at \n| {}: {}", msg, pc, line))).unwrap()
[INFO] [stdout]    |                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 41 -             parse(line).map_err(|msg| panic!(format!("error \"{}\" at \n| {}: {}", msg, pc, line))).unwrap()
[INFO] [stdout] 41 +             parse(line).map_err(|msg| panic!("error \"{}\" at \n| {}: {}", msg, pc, line)).unwrap()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/assembler.rs:31:77
[INFO] [stdout]    |
[INFO] [stdout] 31 |     registers[*r as usize - 'a' as usize].as_mut().unwrap_or_else(|| panic!(format!("Accessed unintialized register '{}'", r)))
[INFO] [stdout]    |                                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 31 -     registers[*r as usize - 'a' as usize].as_mut().unwrap_or_else(|| panic!(format!("Accessed unintialized register '{}'", r)))
[INFO] [stdout] 31 +     registers[*r as usize - 'a' as usize].as_mut().unwrap_or_else(|| panic!("Accessed unintialized register '{}'", r))
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/assembler.rs:41:46
[INFO] [stdout]    |
[INFO] [stdout] 41 |             parse(line).map_err(|msg| panic!(format!("error \"{}\" at \n| {}: {}", msg, pc, line))).unwrap()
[INFO] [stdout]    |                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 41 -             parse(line).map_err(|msg| panic!(format!("error \"{}\" at \n| {}: {}", msg, pc, line))).unwrap()
[INFO] [stdout] 41 +             parse(line).map_err(|msg| panic!("error \"{}\" at \n| {}: {}", msg, pc, line)).unwrap()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/main.rs:34:16
[INFO] [stdout]    |
[INFO] [stdout] 34 |         panic!(format!("Accessed unintialized register '{}'", r))
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 34 -         panic!(format!("Accessed unintialized register '{}'", r))
[INFO] [stdout] 34 +         panic!("Accessed unintialized register '{}'", r)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/main.rs:45:46
[INFO] [stdout]    |
[INFO] [stdout] 45 |             parse(line).map_err(|msg| panic!(format!("error \"{}\" at \n| {}: {}", msg, pc, line))).unwrap()
[INFO] [stdout]    |                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 45 -             parse(line).map_err(|msg| panic!(format!("error \"{}\" at \n| {}: {}", msg, pc, line))).unwrap()
[INFO] [stdout] 45 +             parse(line).map_err(|msg| panic!("error \"{}\" at \n| {}: {}", msg, pc, line)).unwrap()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/main.rs:34:16
[INFO] [stdout]    |
[INFO] [stdout] 34 |         panic!(format!("Accessed unintialized register '{}'", r))
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 34 -         panic!(format!("Accessed unintialized register '{}'", r))
[INFO] [stdout] 34 +         panic!("Accessed unintialized register '{}'", r)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/main.rs:45:46
[INFO] [stdout]    |
[INFO] [stdout] 45 |             parse(line).map_err(|msg| panic!(format!("error \"{}\" at \n| {}: {}", msg, pc, line))).unwrap()
[INFO] [stdout]    |                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 45 -             parse(line).map_err(|msg| panic!(format!("error \"{}\" at \n| {}: {}", msg, pc, line))).unwrap()
[INFO] [stdout] 45 +             parse(line).map_err(|msg| panic!("error \"{}\" at \n| {}: {}", msg, pc, line)).unwrap()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "aff5ebe6dcfeab437c2c92481c6af302696a9d740c74bdac5cb4f2ab07febd24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aff5ebe6dcfeab437c2c92481c6af302696a9d740c74bdac5cb4f2ab07febd24", kill_on_drop: false }`
[INFO] [stdout] aff5ebe6dcfeab437c2c92481c6af302696a9d740c74bdac5cb4f2ab07febd24