[INFO] cloning repository https://github.com/robinzigmond/Advent-of-Code-2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/robinzigmond/Advent-of-Code-2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobinzigmond%2FAdvent-of-Code-2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobinzigmond%2FAdvent-of-Code-2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 73f94f5cf8f761fa05e6308e725db9b50e12eadc
[INFO] testing robinzigmond/Advent-of-Code-2020 against 1.52.1 for beta-1.52-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobinzigmond%2FAdvent-of-Code-2020" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/robinzigmond/Advent-of-Code-2020 on toolchain 1.52.1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.52.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/robinzigmond/Advent-of-Code-2020
[INFO] finished tweaking git repo https://github.com/robinzigmond/Advent-of-Code-2020
[INFO] tweaked toml for git repo https://github.com/robinzigmond/Advent-of-Code-2020 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/robinzigmond/Advent-of-Code-2020 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.52.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+1.52.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4bb06f191a6abd520a5ae7267b0d213040f934f6bffac223392f76f18fa44553
[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" "4bb06f191a6abd520a5ae7267b0d213040f934f6bffac223392f76f18fa44553", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4bb06f191a6abd520a5ae7267b0d213040f934f6bffac223392f76f18fa44553", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bb06f191a6abd520a5ae7267b0d213040f934f6bffac223392f76f18fa44553", kill_on_drop: false }`
[INFO] [stdout] 4bb06f191a6abd520a5ae7267b0d213040f934f6bffac223392f76f18fa44553
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+1.52.1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c4a573831e4654393a942dc6abf41e3a6f54db1598907b7065b24821e8d96814
[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" "c4a573831e4654393a942dc6abf41e3a6f54db1598907b7065b24821e8d96814", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling take_mut v0.2.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.3.1
[INFO] [stderr]    Compiling nom v6.0.1
[INFO] [stderr]    Compiling ring-algorithm v0.2.2
[INFO] [stderr]    Compiling advent-of-code-2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/solutions/day3.rs:53:21
[INFO] [stdout]    |
[INFO] [stdout] 53 |         c => panic!(format!("couldn't read character '{}'", c)),
[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] 53 |         c => panic!("couldn't read character '{}'", c),
[INFO] [stdout]    |                    --                               --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/solutions/day4.rs:61:24
[INFO] [stdout]    |
[INFO] [stdout] 61 |                 panic!(format!("unknown password part: {}", s))
[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] 61 |                 panic!("unknown password part: {}", s)
[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 21.70s
[INFO] running `Command { std: "docker" "inspect" "c4a573831e4654393a942dc6abf41e3a6f54db1598907b7065b24821e8d96814", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4a573831e4654393a942dc6abf41e3a6f54db1598907b7065b24821e8d96814", kill_on_drop: false }`
[INFO] [stdout] c4a573831e4654393a942dc6abf41e3a6f54db1598907b7065b24821e8d96814
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+1.52.1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 953df7ce9e6194a5e9e3011a8f1a356d8d4ad3deab66a755189a93bafbcf996a
[INFO] running `Command { std: "docker" "start" "-a" "953df7ce9e6194a5e9e3011a8f1a356d8d4ad3deab66a755189a93bafbcf996a", kill_on_drop: false }`
[INFO] [stderr]    Compiling advent-of-code-2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/solutions/day3.rs:53:21
[INFO] [stdout]    |
[INFO] [stdout] 53 |         c => panic!(format!("couldn't read character '{}'", c)),
[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] 53 |         c => panic!("couldn't read character '{}'", c),
[INFO] [stdout]    |                    --                               --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/solutions/day4.rs:61:24
[INFO] [stdout]    |
[INFO] [stdout] 61 |                 panic!(format!("unknown password part: {}", s))
[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] 61 |                 panic!("unknown password part: {}", s)
[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 1.80s
[INFO] running `Command { std: "docker" "inspect" "953df7ce9e6194a5e9e3011a8f1a356d8d4ad3deab66a755189a93bafbcf996a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "953df7ce9e6194a5e9e3011a8f1a356d8d4ad3deab66a755189a93bafbcf996a", kill_on_drop: false }`
[INFO] [stdout] 953df7ce9e6194a5e9e3011a8f1a356d8d4ad3deab66a755189a93bafbcf996a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+1.52.1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 195db7b477bcdc6b1305b5dc9f0d7fc4dde041b8ee104e5fcb8db175088bfc8d
[INFO] running `Command { std: "docker" "start" "-a" "195db7b477bcdc6b1305b5dc9f0d7fc4dde041b8ee104e5fcb8db175088bfc8d", kill_on_drop: false }`
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> src/solutions/day3.rs:53:21
[INFO] [stderr]    |
[INFO] [stderr] 53 |         c => panic!(format!("couldn't read character '{}'", c)),
[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] 53 |         c => panic!("couldn't read character '{}'", c),
[INFO] [stderr]    |                    --                               --
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> src/solutions/day4.rs:61:24
[INFO] [stderr]    |
[INFO] [stderr] 61 |                 panic!(format!("unknown password part: {}", s))
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[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!("unknown password part: {}", s)
[INFO] [stderr]    |                       --                            --
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/advent_of_code_2020-9e9bf6a841377851)
[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" "195db7b477bcdc6b1305b5dc9f0d7fc4dde041b8ee104e5fcb8db175088bfc8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "195db7b477bcdc6b1305b5dc9f0d7fc4dde041b8ee104e5fcb8db175088bfc8d", kill_on_drop: false }`
[INFO] [stdout] 195db7b477bcdc6b1305b5dc9f0d7fc4dde041b8ee104e5fcb8db175088bfc8d