[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] testing laviier/advent-of-code-2020 against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flaviier%2Fadvent-of-code-2020" "/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/laviier/advent-of-code-2020 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", 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-2/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" "+1.49.0" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4420a2e97c75bf38e66704dbcd10802e1c900eaff1d3603a6fc81081cd18e946
[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" "4420a2e97c75bf38e66704dbcd10802e1c900eaff1d3603a6fc81081cd18e946", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4420a2e97c75bf38e66704dbcd10802e1c900eaff1d3603a6fc81081cd18e946", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4420a2e97c75bf38e66704dbcd10802e1c900eaff1d3603a6fc81081cd18e946", kill_on_drop: false }`
[INFO] [stdout] 4420a2e97c75bf38e66704dbcd10802e1c900eaff1d3603a6fc81081cd18e946
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--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] 48cc65290447c6db7dbfd67c130d87bb75c5f2e1358446e410ddfa88ddf2deac
[INFO] running `Command { std: "docker" "start" "-a" "48cc65290447c6db7dbfd67c130d87bb75c5f2e1358446e410ddfa88ddf2deac", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling regex-syntax v0.6.21
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling regex v1.4.2
[INFO] [stderr]    Compiling advent-of-code-2020 v0.1.0 (/opt/rustwide/workdir)
[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 14.82s
[INFO] running `Command { std: "docker" "inspect" "48cc65290447c6db7dbfd67c130d87bb75c5f2e1358446e410ddfa88ddf2deac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48cc65290447c6db7dbfd67c130d87bb75c5f2e1358446e410ddfa88ddf2deac", kill_on_drop: false }`
[INFO] [stdout] 48cc65290447c6db7dbfd67c130d87bb75c5f2e1358446e410ddfa88ddf2deac
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3d1db99e74c1454301b2871b0f53466785275a9ad0e73868b6305b5eb5462b35
[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" "3d1db99e74c1454301b2871b0f53466785275a9ad0e73868b6305b5eb5462b35", kill_on_drop: false }`
[INFO] [stderr]    Compiling advent-of-code-2020 v0.1.0 (/opt/rustwide/workdir)
[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 test [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `Command { std: "docker" "inspect" "3d1db99e74c1454301b2871b0f53466785275a9ad0e73868b6305b5eb5462b35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d1db99e74c1454301b2871b0f53466785275a9ad0e73868b6305b5eb5462b35", kill_on_drop: false }`
[INFO] [stdout] 3d1db99e74c1454301b2871b0f53466785275a9ad0e73868b6305b5eb5462b35
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b39a9202e2d940ce1165c432f29b2f8fee193a7e590527531b341fce67e032a2
[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" "b39a9202e2d940ce1165c432f29b2f8fee193a7e590527531b341fce67e032a2", kill_on_drop: false }`
[INFO] [stderr] warning: function is never used: `read_file_to_string`
[INFO] [stderr]   --> src/file_util.rs:23:8
[INFO] [stderr]    |
[INFO] [stderr] 23 | pub fn read_file_to_string(filename: &str) -> Vec<String> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_file_to_string_by_new_line`
[INFO] [stderr]   --> src/file_util.rs:38:8
[INFO] [stderr]    |
[INFO] [stderr] 38 | pub fn read_file_to_string_by_new_line(filename: &str, separator: &str) -> Vec<String> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/advent_of_code_2020-26059101a7411f88
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b39a9202e2d940ce1165c432f29b2f8fee193a7e590527531b341fce67e032a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b39a9202e2d940ce1165c432f29b2f8fee193a7e590527531b341fce67e032a2", kill_on_drop: false }`
[INFO] [stdout] b39a9202e2d940ce1165c432f29b2f8fee193a7e590527531b341fce67e032a2