[INFO] cloning repository https://github.com/shnarazk/splr
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shnarazk/splr" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshnarazk%2Fsplr", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshnarazk%2Fsplr'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f34a664f0f031a9ffe0c4c63558f33ab6b90eec1
[INFO] checking shnarazk/splr against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshnarazk%2Fsplr" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/shnarazk/splr on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/shnarazk/splr
[INFO] finished tweaking git repo https://github.com/shnarazk/splr
[INFO] tweaked toml for git repo https://github.com/shnarazk/splr written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/shnarazk/splr already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3008c0a87f9e042926a95d6ec45594edd2241acb9c7b42c28ee9b3541068c334
[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" "3008c0a87f9e042926a95d6ec45594edd2241acb9c7b42c28ee9b3541068c334", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3008c0a87f9e042926a95d6ec45594edd2241acb9c7b42c28ee9b3541068c334", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3008c0a87f9e042926a95d6ec45594edd2241acb9c7b42c28ee9b3541068c334", kill_on_drop: false }`
[INFO] [stdout] 3008c0a87f9e042926a95d6ec45594edd2241acb9c7b42c28ee9b3541068c334
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d72b38d31c072b8c63e7146d7e711112d78458ec50b2647f928aa68a157c7a11
[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" "d72b38d31c072b8c63e7146d7e711112d78458ec50b2647f928aa68a157c7a11", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking splr v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/assign/propagate.rs:138:50
[INFO] [stdout]     |
[INFO] [stdout] 138 |         debug_assert!(!self.trail.contains(&!l), format!("{:?}", l));
[INFO] [stdout]     |                                                  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[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] 138 |         debug_assert!(!self.trail.contains(&!l), "{:?}", l);
[INFO] [stdout]     |                                                 --       --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/cdb/db.rs:483:42
[INFO] [stdout]     |
[INFO] [stdout] 483 |         debug_assert!(!c.is(Flag::DEAD), format!("found {} is dead: {}", cid, c));
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[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] 483 |         debug_assert!(!c.is(Flag::DEAD), "found {} is dead: {}", cid, c);
[INFO] [stdout]     |                                         --                            --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/processor/mod.rs:539:25
[INFO] [stdout]     |
[INFO] [stdout] 539 |                         format!("{} {:?} {}", cid, c, v.index,)
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[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] 539 |                         "{} {:?} {}", cid, c, v.index,
[INFO] [stdout]     |                        --                            --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/processor/mod.rs:545:25
[INFO] [stdout]     |
[INFO] [stdout] 545 |                         format!("{} {:?} {}", cid, c, v.index,)
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[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] 545 |                         "{} {:?} {}", cid, c, v.index,
[INFO] [stdout]     |                        --                            --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/solver/conflict.rs:70:21
[INFO] [stdout]    |
[INFO] [stdout] 70 | /                     format!(
[INFO] [stdout] 71 | |                         "assign stack contains a strange lit: level {}, stack level {}",
[INFO] [stdout] 72 | |                         original_dl, snd_l
[INFO] [stdout] 73 | |                     )
[INFO] [stdout]    | |_____________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[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] 70 |                     
[INFO] [stdout] 71 |                         "assign stack contains a strange lit: level {}, stack level {}",
[INFO] [stdout] 72 |                         original_dl, snd_l
[INFO] [stdout] 73 |                     
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/solver/conflict.rs:79:21
[INFO] [stdout]    |
[INFO] [stdout] 79 | /                     format!(
[INFO] [stdout] 80 | |                         "{} maps to {:?} {:?}: decision {}",
[INFO] [stdout] 81 | |                         c,
[INFO] [stdout] 82 | |                         c.iter().map(|l| asg.assigned(*l)).collect::<Vec<_>>(),
[INFO] [stdout] 83 | |                         c.iter().map(|l| asg.assign(l.vi())).collect::<Vec<_>>(),
[INFO] [stdout] 84 | |                         decision,
[INFO] [stdout] 85 | |                     )
[INFO] [stdout]    | |_____________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[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] 79 |                     
[INFO] [stdout] 80 |                         "{} maps to {:?} {:?}: decision {}",
[INFO] [stdout] 81 |                         c,
[INFO] [stdout] 82 |                         c.iter().map(|l| asg.assigned(*l)).collect::<Vec<_>>(),
[INFO] [stdout] 83 |                         c.iter().map(|l| asg.assign(l.vi())).collect::<Vec<_>>(),
[INFO] [stdout] 84 |                         decision,
[INFO] [stdout]  ...
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/solver/conflict.rs:147:9
[INFO] [stdout]     |
[INFO] [stdout] 147 | /         format!(
[INFO] [stdout] 148 | |             "use_{}: {:?}, {:?}",
[INFO] [stdout] 149 | |             use_chronobt,
[INFO] [stdout] 150 | |             cl,
[INFO] [stdout] ...   |
[INFO] [stdout] 154 | |                 .collect::<Vec<_>>(),
[INFO] [stdout] 155 | |         )
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[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] 147 |         
[INFO] [stdout] 148 |             "use_{}: {:?}, {:?}",
[INFO] [stdout] 149 |             use_chronobt,
[INFO] [stdout] 150 |             cl,
[INFO] [stdout] 151 |             cdb[ci]
[INFO] [stdout] 152 |                 .iter()
[INFO] [stdout]   ...
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> tests/verify-certificates.rs:47:32
[INFO] [stdout]    |
[INFO] [stdout] 47 |                           panic!(format!(
[INFO] [stdout]    |  ________________________________^
[INFO] [stdout] 48 | |                             " FAIL TO CERTIFICATE: {} => {}",
[INFO] [stdout] 49 | |                             cnf.file_name().unwrap().to_string_lossy(),
[INFO] [stdout] 50 | |                             out.to_string_lossy(),
[INFO] [stdout] 51 | |                         ));
[INFO] [stdout]    | |_________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[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] 47 |                         panic!(
[INFO] [stdout] 48 |                             " FAIL TO CERTIFICATE: {} => {}",
[INFO] [stdout] 49 |                             cnf.file_name().unwrap().to_string_lossy(),
[INFO] [stdout] 50 |                             out.to_string_lossy(),
[INFO] [stdout] 51 |                         );
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> tests/verify-certificates.rs:83:32
[INFO] [stdout]    |
[INFO] [stdout] 83 |                           panic!(format!(
[INFO] [stdout]    |  ________________________________^
[INFO] [stdout] 84 | |                             " FAIL TO CONVERT: {} => {}",
[INFO] [stdout] 85 | |                             cnf.file_name().unwrap().to_string_lossy(),
[INFO] [stdout] 86 | |                             grat.to_string_lossy(),
[INFO] [stdout] 87 | |                         ));
[INFO] [stdout]    | |_________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[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] 83 |                         panic!(
[INFO] [stdout] 84 |                             " FAIL TO CONVERT: {} => {}",
[INFO] [stdout] 85 |                             cnf.file_name().unwrap().to_string_lossy(),
[INFO] [stdout] 86 |                             grat.to_string_lossy(),
[INFO] [stdout] 87 |                         );
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/verify-certificates.rs:106:32
[INFO] [stdout]     |
[INFO] [stdout] 106 |                           panic!(format!(
[INFO] [stdout]     |  ________________________________^
[INFO] [stdout] 107 | |                             " FAIL TO CERTIFICATE: {} => {}",
[INFO] [stdout] 108 | |                             cnf.file_name().unwrap().to_string_lossy(),
[INFO] [stdout] 109 | |                             grat.to_string_lossy(),
[INFO] [stdout] 110 | |                         ));
[INFO] [stdout]     | |_________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[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] 106 |                         panic!(
[INFO] [stdout] 107 |                             " FAIL TO CERTIFICATE: {} => {}",
[INFO] [stdout] 108 |                             cnf.file_name().unwrap().to_string_lossy(),
[INFO] [stdout] 109 |                             grat.to_string_lossy(),
[INFO] [stdout] 110 |                         );
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/assign/propagate.rs:138:50
[INFO] [stdout]     |
[INFO] [stdout] 138 |         debug_assert!(!self.trail.contains(&!l), format!("{:?}", l));
[INFO] [stdout]     |                                                  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[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] 138 |         debug_assert!(!self.trail.contains(&!l), "{:?}", l);
[INFO] [stdout]     |                                                 --       --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/cdb/db.rs:483:42
[INFO] [stdout]     |
[INFO] [stdout] 483 |         debug_assert!(!c.is(Flag::DEAD), format!("found {} is dead: {}", cid, c));
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[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] 483 |         debug_assert!(!c.is(Flag::DEAD), "found {} is dead: {}", cid, c);
[INFO] [stdout]     |                                         --                            --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/processor/mod.rs:539:25
[INFO] [stdout]     |
[INFO] [stdout] 539 |                         format!("{} {:?} {}", cid, c, v.index,)
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[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] 539 |                         "{} {:?} {}", cid, c, v.index,
[INFO] [stdout]     |                        --                            --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/processor/mod.rs:545:25
[INFO] [stdout]     |
[INFO] [stdout] 545 |                         format!("{} {:?} {}", cid, c, v.index,)
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[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] 545 |                         "{} {:?} {}", cid, c, v.index,
[INFO] [stdout]     |                        --                            --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/solver/conflict.rs:70:21
[INFO] [stdout]    |
[INFO] [stdout] 70 | /                     format!(
[INFO] [stdout] 71 | |                         "assign stack contains a strange lit: level {}, stack level {}",
[INFO] [stdout] 72 | |                         original_dl, snd_l
[INFO] [stdout] 73 | |                     )
[INFO] [stdout]    | |_____________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[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] 70 |                     
[INFO] [stdout] 71 |                         "assign stack contains a strange lit: level {}, stack level {}",
[INFO] [stdout] 72 |                         original_dl, snd_l
[INFO] [stdout] 73 |                     
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/solver/conflict.rs:79:21
[INFO] [stdout]    |
[INFO] [stdout] 79 | /                     format!(
[INFO] [stdout] 80 | |                         "{} maps to {:?} {:?}: decision {}",
[INFO] [stdout] 81 | |                         c,
[INFO] [stdout] 82 | |                         c.iter().map(|l| asg.assigned(*l)).collect::<Vec<_>>(),
[INFO] [stdout] 83 | |                         c.iter().map(|l| asg.assign(l.vi())).collect::<Vec<_>>(),
[INFO] [stdout] 84 | |                         decision,
[INFO] [stdout] 85 | |                     )
[INFO] [stdout]    | |_____________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[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] 79 |                     
[INFO] [stdout] 80 |                         "{} maps to {:?} {:?}: decision {}",
[INFO] [stdout] 81 |                         c,
[INFO] [stdout] 82 |                         c.iter().map(|l| asg.assigned(*l)).collect::<Vec<_>>(),
[INFO] [stdout] 83 |                         c.iter().map(|l| asg.assign(l.vi())).collect::<Vec<_>>(),
[INFO] [stdout] 84 |                         decision,
[INFO] [stdout]  ...
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/solver/conflict.rs:147:9
[INFO] [stdout]     |
[INFO] [stdout] 147 | /         format!(
[INFO] [stdout] 148 | |             "use_{}: {:?}, {:?}",
[INFO] [stdout] 149 | |             use_chronobt,
[INFO] [stdout] 150 | |             cl,
[INFO] [stdout] ...   |
[INFO] [stdout] 154 | |                 .collect::<Vec<_>>(),
[INFO] [stdout] 155 | |         )
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[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] 147 |         
[INFO] [stdout] 148 |             "use_{}: {:?}, {:?}",
[INFO] [stdout] 149 |             use_chronobt,
[INFO] [stdout] 150 |             cl,
[INFO] [stdout] 151 |             cdb[ci]
[INFO] [stdout] 152 |                 .iter()
[INFO] [stdout]   ...
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.09s
[INFO] running `Command { std: "docker" "inspect" "d72b38d31c072b8c63e7146d7e711112d78458ec50b2647f928aa68a157c7a11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d72b38d31c072b8c63e7146d7e711112d78458ec50b2647f928aa68a157c7a11", kill_on_drop: false }`
[INFO] [stdout] d72b38d31c072b8c63e7146d7e711112d78458ec50b2647f928aa68a157c7a11