[INFO] cloning repository https://github.com/laviier/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/laviier/advent-of-code-2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flaviier%2Fadvent-of-code-2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flaviier%2Fadvent-of-code-2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 633174c146155303ef4a541721bfd97c2587836a
[INFO] checking laviier/advent-of-code-2020 against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flaviier%2Fadvent-of-code-2020" "/workspace/builds/worker-15/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/laviier/advent-of-code-2020 on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/laviier/advent-of-code-2020
[INFO] finished tweaking git repo https://github.com/laviier/advent-of-code-2020
[INFO] tweaked toml for git repo https://github.com/laviier/advent-of-code-2020 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate git repo https://github.com/laviier/advent-of-code-2020 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2c6bbe536e1a0e538d639bfce174d09ef1825cca6ef2651bf9f244720fe88578
[INFO] running `Command { std: "docker" "start" "-a" "2c6bbe536e1a0e538d639bfce174d09ef1825cca6ef2651bf9f244720fe88578", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c6bbe536e1a0e538d639bfce174d09ef1825cca6ef2651bf9f244720fe88578", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c6bbe536e1a0e538d639bfce174d09ef1825cca6ef2651bf9f244720fe88578", kill_on_drop: false }`
[INFO] [stdout] 2c6bbe536e1a0e538d639bfce174d09ef1825cca6ef2651bf9f244720fe88578
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 011954e8af8cd03f74ccc017f9a7065f5dd60e226cd5d4dedd05df4eac2a6144
[INFO] running `Command { std: "docker" "start" "-a" "011954e8af8cd03f74ccc017f9a7065f5dd60e226cd5d4dedd05df4eac2a6144", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking advent-of-code-2020 v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/main.rs from 2018 edition to 2021
[INFO] [stdout] warning: function is never used: `read_file_to_string`
[INFO] [stdout]   --> src/file_util.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn read_file_to_string(filename: &str) -> Vec<String> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `read_file_to_string_by_new_line`
[INFO] [stdout]   --> src/file_util.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub fn read_file_to_string_by_new_line(filename: &str, separator: &str) -> Vec<String> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `read_file_to_string`
[INFO] [stdout]   --> src/file_util.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn read_file_to_string(filename: &str) -> Vec<String> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `read_file_to_string_by_new_line`
[INFO] [stdout]   --> src/file_util.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub fn read_file_to_string_by_new_line(filename: &str, separator: &str) -> Vec<String> {
[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 4.69s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Checking advent-of-code-2020 v0.1.0 (/tmp/fixit)
[INFO] [stdout] warning: function is never used: `read_file_to_string`
[INFO] [stdout]   --> src/file_util.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn read_file_to_string(filename: &str) -> Vec<String> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `read_file_to_string_by_new_line`
[INFO] [stdout]   --> src/file_util.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub fn read_file_to_string_by_new_line(filename: &str, separator: &str) -> Vec<String> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `read_file_to_string`
[INFO] [stdout]   --> src/file_util.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn read_file_to_string(filename: &str) -> Vec<String> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `read_file_to_string_by_new_line`
[INFO] [stdout]   --> src/file_util.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub fn read_file_to_string_by_new_line(filename: &str, separator: &str) -> Vec<String> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "011954e8af8cd03f74ccc017f9a7065f5dd60e226cd5d4dedd05df4eac2a6144", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "011954e8af8cd03f74ccc017f9a7065f5dd60e226cd5d4dedd05df4eac2a6144", kill_on_drop: false }`
[INFO] [stdout] 011954e8af8cd03f74ccc017f9a7065f5dd60e226cd5d4dedd05df4eac2a6144