[INFO] cloning repository https://github.com/matttgregg/advent2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/matttgregg/advent2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatttgregg%2Fadvent2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatttgregg%2Fadvent2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a144bc34ff558783a16a8bbdd3d2cd076d40dcdf
[INFO] checking matttgregg/advent2020 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatttgregg%2Fadvent2020" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/matttgregg/advent2020 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-2-tc1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/matttgregg/advent2020
[INFO] finished tweaking git repo https://github.com/matttgregg/advent2020
[INFO] tweaked toml for git repo https://github.com/matttgregg/advent2020 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/matttgregg/advent2020 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 74f743e7807e24624216698692679abf9d2e57a576b4102adcb5905b3fcafaa1
[INFO] running `Command { std: "docker" "start" "-a" "74f743e7807e24624216698692679abf9d2e57a576b4102adcb5905b3fcafaa1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74f743e7807e24624216698692679abf9d2e57a576b4102adcb5905b3fcafaa1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74f743e7807e24624216698692679abf9d2e57a576b4102adcb5905b3fcafaa1", kill_on_drop: false }`
[INFO] [stdout] 74f743e7807e24624216698692679abf9d2e57a576b4102adcb5905b3fcafaa1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 89eb0a3686c2f6e432f88f62ec859e64eb0fa045c42b4dc6fb98a625e46ef7a2
[INFO] running `Command { std: "docker" "start" "-a" "89eb0a3686c2f6e432f88f62ec859e64eb0fa045c42b4dc6fb98a625e46ef7a2", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.53
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]     Checking termion v1.5.5
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking advent2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `String` is imported redundantly
[INFO] [stdout]  --> src/day2.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::string::String;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `String` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Iterator` is imported redundantly
[INFO] [stdout]  --> src/day3.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::iter::Iterator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Iterator` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Iterator` is imported redundantly
[INFO] [stdout]  --> src/day3.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::iter::Iterator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Iterator` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/day24.rs:42:32
[INFO] [stdout]    |
[INFO] [stdout] 42 |                         panic!(format!("Unexpect adjoining chars : {} {}", p, c));
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 42 -                         panic!(format!("Unexpect adjoining chars : {} {}", p, c));
[INFO] [stdout] 42 +                         panic!("Unexpect adjoining chars : {} {}", p, c);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/day24.rs:42:32
[INFO] [stdout]    |
[INFO] [stdout] 42 |                         panic!(format!("Unexpect adjoining chars : {} {}", p, c));
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 42 -                         panic!(format!("Unexpect adjoining chars : {} {}", p, c));
[INFO] [stdout] 42 +                         panic!("Unexpect adjoining chars : {} {}", p, c);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.12s
[INFO] running `Command { std: "docker" "inspect" "89eb0a3686c2f6e432f88f62ec859e64eb0fa045c42b4dc6fb98a625e46ef7a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89eb0a3686c2f6e432f88f62ec859e64eb0fa045c42b4dc6fb98a625e46ef7a2", kill_on_drop: false }`
[INFO] [stdout] 89eb0a3686c2f6e432f88f62ec859e64eb0fa045c42b4dc6fb98a625e46ef7a2