[INFO] cloning repository https://github.com/chrisxue815/codeforces-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chrisxue815/codeforces-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchrisxue815%2Fcodeforces-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchrisxue815%2Fcodeforces-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 49ba2021af8c2b5e1a701f63c31551e33f835751
[INFO] testing chrisxue815/codeforces-rust against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchrisxue815%2Fcodeforces-rust" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/chrisxue815/codeforces-rust on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/chrisxue815/codeforces-rust
[INFO] finished tweaking git repo https://github.com/chrisxue815/codeforces-rust
[INFO] tweaked toml for git repo https://github.com/chrisxue815/codeforces-rust written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/chrisxue815/codeforces-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f4132e737729b45f4abf52cb929aa6043e45c2d4028be4f806963d72fd2fb18d
[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" "f4132e737729b45f4abf52cb929aa6043e45c2d4028be4f806963d72fd2fb18d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f4132e737729b45f4abf52cb929aa6043e45c2d4028be4f806963d72fd2fb18d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4132e737729b45f4abf52cb929aa6043e45c2d4028be4f806963d72fd2fb18d", kill_on_drop: false }`
[INFO] [stdout] f4132e737729b45f4abf52cb929aa6043e45c2d4028be4f806963d72fd2fb18d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2fbee7cd5f999b3f08a28d3aac1bbac28b3b3a0b0e9d587eaa71825f54be4ccc
[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" "2fbee7cd5f999b3f08a28d3aac1bbac28b3b3a0b0e9d587eaa71825f54be4ccc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling codeforces-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/p0001a.rs:28:25
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let stdin: &mut Iterator<Item = u8> = &mut ($input);
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[INFO] [stdout] ...
[INFO] [stdout] 70 |     let n: u64 = read!();
[INFO] [stdout]    |                  ------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/p0001a.rs:28:25
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let stdin: &mut Iterator<Item = u8> = &mut ($input);
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[INFO] [stdout] ...
[INFO] [stdout] 71 |     let m: u64 = read!();
[INFO] [stdout]    |                  ------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/p0001a.rs:28:25
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let stdin: &mut Iterator<Item = u8> = &mut ($input);
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[INFO] [stdout] ...
[INFO] [stdout] 72 |     let a: u64 = read!();
[INFO] [stdout]    |                  ------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/p0004a.rs:27:25
[INFO] [stdout]    |
[INFO] [stdout] 27 |         let stdin: &mut Iterator<Item = u8> = &mut ($input);
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[INFO] [stdout] ...
[INFO] [stdout] 69 |     let w: u32 = read!();
[INFO] [stdout]    |                  ------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/p0050a.rs:28:25
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let stdin: &mut Iterator<Item = u8> = &mut ($input);
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[INFO] [stdout] ...
[INFO] [stdout] 70 |     let m: u32 = read!();
[INFO] [stdout]    |                  ------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/p0050a.rs:28:25
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let stdin: &mut Iterator<Item = u8> = &mut ($input);
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[INFO] [stdout] ...
[INFO] [stdout] 71 |     let n: u32 = read!();
[INFO] [stdout]    |                  ------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/p0116a.rs:28:25
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let stdin: &mut Iterator<Item = u8> = &mut ($input);
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[INFO] [stdout] ...
[INFO] [stdout] 74 |     let n: u32 = read!();
[INFO] [stdout]    |                  ------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/p0116a.rs:28:25
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let stdin: &mut Iterator<Item = u8> = &mut ($input);
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[INFO] [stdout] ...
[INFO] [stdout] 79 |         let a: i32 = read!();
[INFO] [stdout]    |                      ------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/p0116a.rs:28:25
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let stdin: &mut Iterator<Item = u8> = &mut ($input);
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[INFO] [stdout] ...
[INFO] [stdout] 80 |         let b: i32 = read!();
[INFO] [stdout]    |                      ------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/p0158b.rs:28:25
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let stdin: &mut Iterator<Item = u8> = &mut ($input);
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[INFO] [stdout] ...
[INFO] [stdout] 81 |         let si: usize = read!();
[INFO] [stdout]    |                         ------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains braces
[INFO] [stdout]   --> src/p0001a.rs:59:21
[INFO] [stdout]    |
[INFO] [stdout] 59 |             None => panic!("Bad read! format string: did not contain {{}}"),
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 70 |     let n: u64 = read!();
[INFO] [stdout]    |                  ------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]    = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 59 |             None => panic!("{}", "Bad read! format string: did not contain {{}}"),
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains braces
[INFO] [stdout]   --> src/p0001a.rs:59:21
[INFO] [stdout]    |
[INFO] [stdout] 59 |             None => panic!("Bad read! format string: did not contain {{}}"),
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 71 |     let m: u64 = read!();
[INFO] [stdout]    |                  ------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 59 |             None => panic!("{}", "Bad read! format string: did not contain {{}}"),
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains braces
[INFO] [stdout]   --> src/p0001a.rs:59:21
[INFO] [stdout]    |
[INFO] [stdout] 59 |             None => panic!("Bad read! format string: did not contain {{}}"),
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 72 |     let a: u64 = read!();
[INFO] [stdout]    |                  ------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 59 |             None => panic!("{}", "Bad read! format string: did not contain {{}}"),
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains braces
[INFO] [stdout]   --> src/p0004a.rs:58:21
[INFO] [stdout]    |
[INFO] [stdout] 58 |             None => panic!("Bad read! format string: did not contain {{}}"),
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |     let w: u32 = read!();
[INFO] [stdout]    |                  ------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 58 |             None => panic!("{}", "Bad read! format string: did not contain {{}}"),
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains braces
[INFO] [stdout]   --> src/p0050a.rs:59:21
[INFO] [stdout]    |
[INFO] [stdout] 59 |             None => panic!("Bad read! format string: did not contain {{}}"),
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 70 |     let m: u32 = read!();
[INFO] [stdout]    |                  ------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 59 |             None => panic!("{}", "Bad read! format string: did not contain {{}}"),
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains braces
[INFO] [stdout]   --> src/p0050a.rs:59:21
[INFO] [stdout]    |
[INFO] [stdout] 59 |             None => panic!("Bad read! format string: did not contain {{}}"),
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 71 |     let n: u32 = read!();
[INFO] [stdout]    |                  ------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 59 |             None => panic!("{}", "Bad read! format string: did not contain {{}}"),
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains braces
[INFO] [stdout]   --> src/p0116a.rs:63:21
[INFO] [stdout]    |
[INFO] [stdout] 63 |             None => panic!("Bad read! format string: did not contain {{}}"),
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 74 |     let n: u32 = read!();
[INFO] [stdout]    |                  ------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 63 |             None => panic!("{}", "Bad read! format string: did not contain {{}}"),
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains braces
[INFO] [stdout]   --> src/p0116a.rs:63:21
[INFO] [stdout]    |
[INFO] [stdout] 63 |             None => panic!("Bad read! format string: did not contain {{}}"),
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 79 |         let a: i32 = read!();
[INFO] [stdout]    |                      ------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 63 |             None => panic!("{}", "Bad read! format string: did not contain {{}}"),
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains braces
[INFO] [stdout]   --> src/p0116a.rs:63:21
[INFO] [stdout]    |
[INFO] [stdout] 63 |             None => panic!("Bad read! format string: did not contain {{}}"),
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 80 |         let b: i32 = read!();
[INFO] [stdout]    |                      ------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 63 |             None => panic!("{}", "Bad read! format string: did not contain {{}}"),
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains braces
[INFO] [stdout]   --> src/p0158b.rs:59:21
[INFO] [stdout]    |
[INFO] [stdout] 59 |             None => panic!("Bad read! format string: did not contain {{}}"),
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 81 |         let si: usize = read!();
[INFO] [stdout]    |                         ------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 59 |             None => panic!("{}", "Bad read! format string: did not contain {{}}"),
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.19s
[INFO] running `Command { std: "docker" "inspect" "2fbee7cd5f999b3f08a28d3aac1bbac28b3b3a0b0e9d587eaa71825f54be4ccc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fbee7cd5f999b3f08a28d3aac1bbac28b3b3a0b0e9d587eaa71825f54be4ccc", kill_on_drop: false }`
[INFO] [stdout] 2fbee7cd5f999b3f08a28d3aac1bbac28b3b3a0b0e9d587eaa71825f54be4ccc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c5dc94c21d5e4a71b33ff14eba2a07a2b997a2a5adfa5e44130ef74f4c974d26
[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" "c5dc94c21d5e4a71b33ff14eba2a07a2b997a2a5adfa5e44130ef74f4c974d26", kill_on_drop: false }`
[INFO] [stderr]    Compiling codeforces-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/p0001a.rs:28:25
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let stdin: &mut Iterator<Item = u8> = &mut ($input);
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[INFO] [stdout] ...
[INFO] [stdout] 70 |     let n: u64 = read!();
[INFO] [stdout]    |                  ------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/p0001a.rs:28:25
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let stdin: &mut Iterator<Item = u8> = &mut ($input);
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[INFO] [stdout] ...
[INFO] [stdout] 71 |     let m: u64 = read!();
[INFO] [stdout]    |                  ------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/p0001a.rs:28:25
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let stdin: &mut Iterator<Item = u8> = &mut ($input);
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[INFO] [stdout] ...
[INFO] [stdout] 72 |     let a: u64 = read!();
[INFO] [stdout]    |                  ------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/p0004a.rs:27:25
[INFO] [stdout]    |
[INFO] [stdout] 27 |         let stdin: &mut Iterator<Item = u8> = &mut ($input);
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[INFO] [stdout] ...
[INFO] [stdout] 69 |     let w: u32 = read!();
[INFO] [stdout]    |                  ------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/p0050a.rs:28:25
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let stdin: &mut Iterator<Item = u8> = &mut ($input);
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[INFO] [stdout] ...
[INFO] [stdout] 70 |     let m: u32 = read!();
[INFO] [stdout]    |                  ------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/p0050a.rs:28:25
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let stdin: &mut Iterator<Item = u8> = &mut ($input);
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[INFO] [stdout] ...
[INFO] [stdout] 71 |     let n: u32 = read!();
[INFO] [stdout]    |                  ------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/p0116a.rs:28:25
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let stdin: &mut Iterator<Item = u8> = &mut ($input);
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[INFO] [stdout] ...
[INFO] [stdout] 74 |     let n: u32 = read!();
[INFO] [stdout]    |                  ------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/p0116a.rs:28:25
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let stdin: &mut Iterator<Item = u8> = &mut ($input);
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[INFO] [stdout] ...
[INFO] [stdout] 79 |         let a: i32 = read!();
[INFO] [stdout]    |                      ------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/p0116a.rs:28:25
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let stdin: &mut Iterator<Item = u8> = &mut ($input);
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[INFO] [stdout] ...
[INFO] [stdout] 80 |         let b: i32 = read!();
[INFO] [stdout]    |                      ------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/p0158b.rs:28:25
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let stdin: &mut Iterator<Item = u8> = &mut ($input);
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[INFO] [stdout] ...
[INFO] [stdout] 81 |         let si: usize = read!();
[INFO] [stdout]    |                         ------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains braces
[INFO] [stdout]   --> src/p0001a.rs:59:21
[INFO] [stdout]    |
[INFO] [stdout] 59 |             None => panic!("Bad read! format string: did not contain {{}}"),
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 70 |     let n: u64 = read!();
[INFO] [stdout]    |                  ------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]    = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 59 |             None => panic!("{}", "Bad read! format string: did not contain {{}}"),
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains braces
[INFO] [stdout]   --> src/p0001a.rs:59:21
[INFO] [stdout]    |
[INFO] [stdout] 59 |             None => panic!("Bad read! format string: did not contain {{}}"),
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 71 |     let m: u64 = read!();
[INFO] [stdout]    |                  ------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 59 |             None => panic!("{}", "Bad read! format string: did not contain {{}}"),
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains braces
[INFO] [stdout]   --> src/p0001a.rs:59:21
[INFO] [stdout]    |
[INFO] [stdout] 59 |             None => panic!("Bad read! format string: did not contain {{}}"),
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 72 |     let a: u64 = read!();
[INFO] [stdout]    |                  ------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 59 |             None => panic!("{}", "Bad read! format string: did not contain {{}}"),
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains braces
[INFO] [stdout]   --> src/p0004a.rs:58:21
[INFO] [stdout]    |
[INFO] [stdout] 58 |             None => panic!("Bad read! format string: did not contain {{}}"),
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |     let w: u32 = read!();
[INFO] [stdout]    |                  ------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 58 |             None => panic!("{}", "Bad read! format string: did not contain {{}}"),
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains braces
[INFO] [stdout]   --> src/p0050a.rs:59:21
[INFO] [stdout]    |
[INFO] [stdout] 59 |             None => panic!("Bad read! format string: did not contain {{}}"),
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 70 |     let m: u32 = read!();
[INFO] [stdout]    |                  ------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 59 |             None => panic!("{}", "Bad read! format string: did not contain {{}}"),
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains braces
[INFO] [stdout]   --> src/p0050a.rs:59:21
[INFO] [stdout]    |
[INFO] [stdout] 59 |             None => panic!("Bad read! format string: did not contain {{}}"),
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 71 |     let n: u32 = read!();
[INFO] [stdout]    |                  ------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 59 |             None => panic!("{}", "Bad read! format string: did not contain {{}}"),
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains braces
[INFO] [stdout]   --> src/p0116a.rs:63:21
[INFO] [stdout]    |
[INFO] [stdout] 63 |             None => panic!("Bad read! format string: did not contain {{}}"),
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 74 |     let n: u32 = read!();
[INFO] [stdout]    |                  ------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 63 |             None => panic!("{}", "Bad read! format string: did not contain {{}}"),
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains braces
[INFO] [stdout]   --> src/p0116a.rs:63:21
[INFO] [stdout]    |
[INFO] [stdout] 63 |             None => panic!("Bad read! format string: did not contain {{}}"),
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 79 |         let a: i32 = read!();
[INFO] [stdout]    |                      ------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 63 |             None => panic!("{}", "Bad read! format string: did not contain {{}}"),
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains braces
[INFO] [stdout]   --> src/p0116a.rs:63:21
[INFO] [stdout]    |
[INFO] [stdout] 63 |             None => panic!("Bad read! format string: did not contain {{}}"),
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 80 |         let b: i32 = read!();
[INFO] [stdout]    |                      ------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 63 |             None => panic!("{}", "Bad read! format string: did not contain {{}}"),
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains braces
[INFO] [stdout]   --> src/p0158b.rs:59:21
[INFO] [stdout]    |
[INFO] [stdout] 59 |             None => panic!("Bad read! format string: did not contain {{}}"),
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 81 |         let si: usize = read!();
[INFO] [stdout]    |                         ------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 59 |             None => panic!("{}", "Bad read! format string: did not contain {{}}"),
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.60s
[INFO] running `Command { std: "docker" "inspect" "c5dc94c21d5e4a71b33ff14eba2a07a2b997a2a5adfa5e44130ef74f4c974d26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5dc94c21d5e4a71b33ff14eba2a07a2b997a2a5adfa5e44130ef74f4c974d26", kill_on_drop: false }`
[INFO] [stdout] c5dc94c21d5e4a71b33ff14eba2a07a2b997a2a5adfa5e44130ef74f4c974d26
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6b2ccf75a10c322313e26165aff5cef31b65ba402f59899c9e8b766e28f84b10
[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" "6b2ccf75a10c322313e26165aff5cef31b65ba402f59899c9e8b766e28f84b10", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/p0001a.rs:28:25
[INFO] [stderr]    |
[INFO] [stderr] 28 |         let stdin: &mut Iterator<Item = u8> = &mut ($input);
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[INFO] [stderr] ...
[INFO] [stderr] 70 |     let n: u64 = read!();
[INFO] [stderr]    |                  ------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/p0001a.rs:28:25
[INFO] [stderr]    |
[INFO] [stderr] 28 |         let stdin: &mut Iterator<Item = u8> = &mut ($input);
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[INFO] [stderr] ...
[INFO] [stderr] 71 |     let m: u64 = read!();
[INFO] [stderr]    |                  ------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/p0001a.rs:28:25
[INFO] [stderr]    |
[INFO] [stderr] 28 |         let stdin: &mut Iterator<Item = u8> = &mut ($input);
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[INFO] [stderr] ...
[INFO] [stderr] 72 |     let a: u64 = read!();
[INFO] [stderr]    |                  ------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/p0004a.rs:27:25
[INFO] [stderr]    |
[INFO] [stderr] 27 |         let stdin: &mut Iterator<Item = u8> = &mut ($input);
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[INFO] [stderr] ...
[INFO] [stderr] 69 |     let w: u32 = read!();
[INFO] [stderr]    |                  ------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/p0050a.rs:28:25
[INFO] [stderr]    |
[INFO] [stderr] 28 |         let stdin: &mut Iterator<Item = u8> = &mut ($input);
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[INFO] [stderr] ...
[INFO] [stderr] 70 |     let m: u32 = read!();
[INFO] [stderr]    |                  ------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/p0050a.rs:28:25
[INFO] [stderr]    |
[INFO] [stderr] 28 |         let stdin: &mut Iterator<Item = u8> = &mut ($input);
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[INFO] [stderr] ...
[INFO] [stderr] 71 |     let n: u32 = read!();
[INFO] [stderr]    |                  ------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/p0116a.rs:28:25
[INFO] [stderr]    |
[INFO] [stderr] 28 |         let stdin: &mut Iterator<Item = u8> = &mut ($input);
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[INFO] [stderr] ...
[INFO] [stderr] 74 |     let n: u32 = read!();
[INFO] [stderr]    |                  ------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/p0116a.rs:28:25
[INFO] [stderr]    |
[INFO] [stderr] 28 |         let stdin: &mut Iterator<Item = u8> = &mut ($input);
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[INFO] [stderr] ...
[INFO] [stderr] 79 |         let a: i32 = read!();
[INFO] [stderr]    |                      ------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/p0116a.rs:28:25
[INFO] [stderr]    |
[INFO] [stderr] 28 |         let stdin: &mut Iterator<Item = u8> = &mut ($input);
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[INFO] [stderr] ...
[INFO] [stderr] 80 |         let b: i32 = read!();
[INFO] [stderr]    |                      ------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/p0158b.rs:28:25
[INFO] [stderr]    |
[INFO] [stderr] 28 |         let stdin: &mut Iterator<Item = u8> = &mut ($input);
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[INFO] [stderr] ...
[INFO] [stderr] 81 |         let si: usize = read!();
[INFO] [stderr]    |                         ------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message contains braces
[INFO] [stderr]   --> src/p0001a.rs:59:21
[INFO] [stderr]    |
[INFO] [stderr] 59 |             None => panic!("Bad read! format string: did not contain {{}}"),
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 70 |     let n: u64 = read!();
[INFO] [stderr]    |                  ------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stderr]    = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stderr]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to use the message literally
[INFO] [stderr]    |
[INFO] [stderr] 59 |             None => panic!("{}", "Bad read! format string: did not contain {{}}"),
[INFO] [stderr]    |                            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message contains braces
[INFO] [stderr]   --> src/p0001a.rs:59:21
[INFO] [stderr]    |
[INFO] [stderr] 59 |             None => panic!("Bad read! format string: did not contain {{}}"),
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 71 |     let m: u64 = read!();
[INFO] [stderr]    |                  ------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stderr]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to use the message literally
[INFO] [stderr]    |
[INFO] [stderr] 59 |             None => panic!("{}", "Bad read! format string: did not contain {{}}"),
[INFO] [stderr]    |                            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message contains braces
[INFO] [stderr]   --> src/p0001a.rs:59:21
[INFO] [stderr]    |
[INFO] [stderr] 59 |             None => panic!("Bad read! format string: did not contain {{}}"),
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 72 |     let a: u64 = read!();
[INFO] [stderr]    |                  ------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stderr]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to use the message literally
[INFO] [stderr]    |
[INFO] [stderr] 59 |             None => panic!("{}", "Bad read! format string: did not contain {{}}"),
[INFO] [stderr]    |                            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message contains braces
[INFO] [stderr]   --> src/p0004a.rs:58:21
[INFO] [stderr]    |
[INFO] [stderr] 58 |             None => panic!("Bad read! format string: did not contain {{}}"),
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 69 |     let w: u32 = read!();
[INFO] [stderr]    |                  ------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stderr]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to use the message literally
[INFO] [stderr]    |
[INFO] [stderr] 58 |             None => panic!("{}", "Bad read! format string: did not contain {{}}"),
[INFO] [stderr]    |                            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message contains braces
[INFO] [stderr]   --> src/p0050a.rs:59:21
[INFO] [stderr]    |
[INFO] [stderr] 59 |             None => panic!("Bad read! format string: did not contain {{}}"),
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 70 |     let m: u32 = read!();
[INFO] [stderr]    |                  ------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stderr]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to use the message literally
[INFO] [stderr]    |
[INFO] [stderr] 59 |             None => panic!("{}", "Bad read! format string: did not contain {{}}"),
[INFO] [stderr]    |                            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message contains braces
[INFO] [stderr]   --> src/p0050a.rs:59:21
[INFO] [stderr]    |
[INFO] [stderr] 59 |             None => panic!("Bad read! format string: did not contain {{}}"),
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 71 |     let n: u32 = read!();
[INFO] [stderr]    |                  ------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stderr]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to use the message literally
[INFO] [stderr]    |
[INFO] [stderr] 59 |             None => panic!("{}", "Bad read! format string: did not contain {{}}"),
[INFO] [stderr]    |                            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message contains braces
[INFO] [stderr]   --> src/p0116a.rs:63:21
[INFO] [stderr]    |
[INFO] [stderr] 63 |             None => panic!("Bad read! format string: did not contain {{}}"),
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 74 |     let n: u32 = read!();
[INFO] [stderr]    |                  ------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stderr]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to use the message literally
[INFO] [stderr]    |
[INFO] [stderr] 63 |             None => panic!("{}", "Bad read! format string: did not contain {{}}"),
[INFO] [stderr]    |                            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message contains braces
[INFO] [stderr]   --> src/p0116a.rs:63:21
[INFO] [stderr]    |
[INFO] [stderr] 63 |             None => panic!("Bad read! format string: did not contain {{}}"),
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 79 |         let a: i32 = read!();
[INFO] [stderr]    |                      ------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stderr]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to use the message literally
[INFO] [stderr]    |
[INFO] [stderr] 63 |             None => panic!("{}", "Bad read! format string: did not contain {{}}"),
[INFO] [stderr]    |                            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message contains braces
[INFO] [stderr]   --> src/p0116a.rs:63:21
[INFO] [stderr]    |
[INFO] [stderr] 63 |             None => panic!("Bad read! format string: did not contain {{}}"),
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 80 |         let b: i32 = read!();
[INFO] [stderr]    |                      ------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stderr]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to use the message literally
[INFO] [stderr]    |
[INFO] [stderr] 63 |             None => panic!("{}", "Bad read! format string: did not contain {{}}"),
[INFO] [stderr]    |                            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message contains braces
[INFO] [stderr]   --> src/p0158b.rs:59:21
[INFO] [stderr]    |
[INFO] [stderr] 59 |             None => panic!("Bad read! format string: did not contain {{}}"),
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 81 |         let si: usize = read!();
[INFO] [stderr]    |                         ------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stderr]    = note: this warning originates in the macro `scan` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] help: add a "{}" format string to use the message literally
[INFO] [stderr]    |
[INFO] [stderr] 59 |             None => panic!("{}", "Bad read! format string: did not contain {{}}"),
[INFO] [stderr]    |                            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `codeforces-rust` (bin "codeforces-rust" test) generated 20 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/codeforces_rust-ce57a4225e3ecf3d)
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test p0004a::tests::it_works ... ok
[INFO] [stdout] test p0071a::tests::it_works ... ok
[INFO] [stdout] test p0096a::tests::it_works ... ok
[INFO] [stdout] test p0112a::tests::it_works ... ok
[INFO] [stdout] test p0122a::tests::it_works ... ok
[INFO] [stdout] test p0133a::tests::it_works ... ok
[INFO] [stdout] test p0158a::tests::it_works ... ok
[INFO] [stdout] test p0158b::tests::it_works ... ok
[INFO] [stdout] test p0160a::tests::it_works ... ok
[INFO] [stdout] test p0266a::tests::it_works ... ok
[INFO] [stdout] test p0281a::tests::it_works ... ok
[INFO] [stdout] test p0339a::tests::it_works ... ok
[INFO] [stdout] test p0050a::tests::it_works ... ok
[INFO] [stdout] test p0058a::tests::it_works ... ok
[INFO] [stdout] test p0115a::tests::it_works ... ok
[INFO] [stdout] test p0118a::tests::it_works ... ok
[INFO] [stdout] test p0001a::tests::it_works ... ok
[INFO] [stdout] test p0131a::tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6b2ccf75a10c322313e26165aff5cef31b65ba402f59899c9e8b766e28f84b10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b2ccf75a10c322313e26165aff5cef31b65ba402f59899c9e8b766e28f84b10", kill_on_drop: false }`
[INFO] [stdout] 6b2ccf75a10c322313e26165aff5cef31b65ba402f59899c9e8b766e28f84b10