[INFO] cloning repository https://github.com/ilikeavocadoes/adventofcode-rust-2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ilikeavocadoes/adventofcode-rust-2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Filikeavocadoes%2Fadventofcode-rust-2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Filikeavocadoes%2Fadventofcode-rust-2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 046b0465a337b6fd7e2d227447861b9a28f9e2de
[INFO] testing ilikeavocadoes/adventofcode-rust-2020 against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Filikeavocadoes%2Fadventofcode-rust-2020" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ilikeavocadoes/adventofcode-rust-2020 on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ilikeavocadoes/adventofcode-rust-2020
[INFO] finished tweaking git repo https://github.com/ilikeavocadoes/adventofcode-rust-2020
[INFO] tweaked toml for git repo https://github.com/ilikeavocadoes/adventofcode-rust-2020 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/ilikeavocadoes/adventofcode-rust-2020 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c13c75551eab2f02a71153270d7c6866d279aca18149e12750fde922d34ab278
[INFO] running `Command { std: "docker" "start" "-a" "c13c75551eab2f02a71153270d7c6866d279aca18149e12750fde922d34ab278", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c13c75551eab2f02a71153270d7c6866d279aca18149e12750fde922d34ab278", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c13c75551eab2f02a71153270d7c6866d279aca18149e12750fde922d34ab278", kill_on_drop: false }`
[INFO] [stdout] c13c75551eab2f02a71153270d7c6866d279aca18149e12750fde922d34ab278
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c017b113380a35d851400f0c27ad310464062aee2253abb1018d8fba45af8af6
[INFO] running `Command { std: "docker" "start" "-a" "c017b113380a35d851400f0c27ad310464062aee2253abb1018d8fba45af8af6", kill_on_drop: false }`
[INFO] [stderr]    Compiling adventofcode-rust-2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `ex`
[INFO] [stdout]  --> src/day13.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn ex() -> &'static str {
[INFO] [stdout]   |    ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/day13.rs:61:16
[INFO] [stdout]    |
[INFO] [stdout] 61 |         panic!(format!("{} is not invertible", a));
[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] 61 |         panic!("{} is not invertible", a);
[INFO] [stdout]    |               --                       --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.40s
[INFO] running `Command { std: "docker" "inspect" "c017b113380a35d851400f0c27ad310464062aee2253abb1018d8fba45af8af6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c017b113380a35d851400f0c27ad310464062aee2253abb1018d8fba45af8af6", kill_on_drop: false }`
[INFO] [stdout] c017b113380a35d851400f0c27ad310464062aee2253abb1018d8fba45af8af6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 03247d4cef6f727cd1243a412d183f960dc6e15184f81681198e846fec89556f
[INFO] running `Command { std: "docker" "start" "-a" "03247d4cef6f727cd1243a412d183f960dc6e15184f81681198e846fec89556f", kill_on_drop: false }`
[INFO] [stderr]    Compiling adventofcode-rust-2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `ex`
[INFO] [stdout]  --> src/day13.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn ex() -> &'static str {
[INFO] [stdout]   |    ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/day13.rs:61:16
[INFO] [stdout]    |
[INFO] [stdout] 61 |         panic!(format!("{} is not invertible", a));
[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] 61 |         panic!("{} is not invertible", a);
[INFO] [stdout]    |               --                       --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `ex`
[INFO] [stdout]  --> src/day13.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn ex() -> &'static str {
[INFO] [stdout]   |    ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/day13.rs:61:16
[INFO] [stdout]    |
[INFO] [stdout] 61 |         panic!(format!("{} is not invertible", a));
[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] 61 |         panic!("{} is not invertible", a);
[INFO] [stdout]    |               --                       --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "03247d4cef6f727cd1243a412d183f960dc6e15184f81681198e846fec89556f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03247d4cef6f727cd1243a412d183f960dc6e15184f81681198e846fec89556f", kill_on_drop: false }`
[INFO] [stdout] 03247d4cef6f727cd1243a412d183f960dc6e15184f81681198e846fec89556f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ba3a66f07f74bbf2d94e3d9e514ab0bfe1e22d757e7229602cf3a1c6ad819ad5
[INFO] running `Command { std: "docker" "start" "-a" "ba3a66f07f74bbf2d94e3d9e514ab0bfe1e22d757e7229602cf3a1c6ad819ad5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: function is never used: `ex`
[INFO] [stderr]  --> src/day13.rs:8:4
[INFO] [stderr]   |
[INFO] [stderr] 8 | fn ex() -> &'static str {
[INFO] [stderr]   |    ^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> src/day13.rs:61:16
[INFO] [stderr]    |
[INFO] [stderr] 61 |         panic!(format!("{} is not invertible", a));
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stderr]    = note: this is no longer accepted in Rust 2021
[INFO] [stderr]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]    |
[INFO] [stderr] 61 |         panic!("{} is not invertible", a);
[INFO] [stderr]    |               --                       --
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stderr] warning: function is never used: `ex`
[INFO] [stdout] running 0 tests
[INFO] [stderr]  --> src/day13.rs:8:4
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 8 | fn ex() -> &'static str {
[INFO] [stdout] 
[INFO] [stderr]   |    ^^
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] running 0 tests
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stdout] 
[INFO] [stderr]   --> src/day13.rs:61:16
[INFO] [stderr]    |
[INFO] [stderr] 61 |         panic!(format!("{} is not invertible", a));
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stderr]    = note: this is no longer accepted in Rust 2021
[INFO] [stderr]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]    |
[INFO] [stderr] 61 |         panic!("{} is not invertible", a);
[INFO] [stderr]    |               --                       --
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.26s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/adventofcode_rust_2020-97aa42a5f5279d19)
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/adventofcode_rust_2020-52eb8737c666c15c)
[INFO] [stderr]    Doc-tests adventofcode-rust-2020
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ba3a66f07f74bbf2d94e3d9e514ab0bfe1e22d757e7229602cf3a1c6ad819ad5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba3a66f07f74bbf2d94e3d9e514ab0bfe1e22d757e7229602cf3a1c6ad819ad5", kill_on_drop: false }`
[INFO] [stdout] ba3a66f07f74bbf2d94e3d9e514ab0bfe1e22d757e7229602cf3a1c6ad819ad5