[INFO] cloning repository https://github.com/benfjohnson/aoc_2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/benfjohnson/aoc_2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenfjohnson%2Faoc_2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenfjohnson%2Faoc_2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d54f3f686d215dafafc85d87fd07829251f770d4
[INFO] checking benfjohnson/aoc_2020/d54f3f686d215dafafc85d87fd07829251f770d4 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenfjohnson%2Faoc_2020" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/benfjohnson/aoc_2020 on toolchain 4d98531622e1718ae0bc3c7a1ab9cd8938428452
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/benfjohnson/aoc_2020
[INFO] finished tweaking git repo https://github.com/benfjohnson/aoc_2020
[INFO] tweaked toml for git repo https://github.com/benfjohnson/aoc_2020 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/benfjohnson/aoc_2020 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" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2d411d865343e09115df6a963a97ea4b85c464e841332a246c32ed343d2f908f
[INFO] running `Command { std: "docker" "start" "-a" "2d411d865343e09115df6a963a97ea4b85c464e841332a246c32ed343d2f908f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2d411d865343e09115df6a963a97ea4b85c464e841332a246c32ed343d2f908f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d411d865343e09115df6a963a97ea4b85c464e841332a246c32ed343d2f908f", kill_on_drop: false }`
[INFO] [stdout] 2d411d865343e09115df6a963a97ea4b85c464e841332a246c32ed343d2f908f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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 -Dtail_expr_drop_order" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bf58d52c7cdbfd9cb48bdfb7ad4e09cbcefb0bd75d47fe40f17cb3c7089ac593
[INFO] running `Command { std: "docker" "start" "-a" "bf58d52c7cdbfd9cb48bdfb7ad4e09cbcefb0bd75d47fe40f17cb3c7089ac593", kill_on_drop: false }`
[INFO] [stderr]     Checking aoc_2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `sum_expenses` is never used
[INFO] [stdout]  --> src/one.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn sum_expenses(items: &Vec<i32>) -> i32 {
[INFO] [stdout]   |    ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_three_values` is never used
[INFO] [stdout]   --> src/one.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn find_three_values(items: &Vec<i32>) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_answers` is never used
[INFO] [stdout]   --> src/one.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub fn get_answers(input: Vec<String>) -> (i32, i32) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ValidationInfo` is never constructed
[INFO] [stdout]  --> src/two.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct ValidationInfo {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_num_range` is never used
[INFO] [stdout]  --> src/two.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn get_num_range(s: &str) -> (usize, usize) {
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `line_to_valid_info` is never used
[INFO] [stdout]   --> src/two.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn line_to_valid_info(l: &String) -> ValidationInfo {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `password_is_valid` is never used
[INFO] [stdout]   --> src/two.rs:26:4
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn password_is_valid(v: &ValidationInfo) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `password_is_valid_v2` is never used
[INFO] [stdout]   --> src/two.rs:39:4
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn password_is_valid_v2(v: &ValidationInfo) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_answers` is never used
[INFO] [stdout]   --> src/two.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub fn get_answers(input: Vec<String>) -> (usize, usize) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/main.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |   fn lines_from_file(filename: impl AsRef<Path>) -> Vec<String> {
[INFO] [stdout]    |                      -------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 12 |       let file = File::open(filename).expect("No such file found.");
[INFO] [stdout]    |           ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 13 |       let buf = BufReader::new(file);
[INFO] [stdout]    |           --- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 14 |
[INFO] [stdout] 15 | /     buf.lines()
[INFO] [stdout] 16 | |         .map(|x| x.expect("Could not parse line"))
[INFO] [stdout]    | |__________________________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout]    = note: requested on the command line with `-D tail-expr-drop-order`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sum_expenses` is never used
[INFO] [stdout]  --> src/one.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn sum_expenses(items: &Vec<i32>) -> i32 {
[INFO] [stdout]   |    ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_three_values` is never used
[INFO] [stdout]   --> src/one.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn find_three_values(items: &Vec<i32>) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_answers` is never used
[INFO] [stdout]   --> src/one.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub fn get_answers(input: Vec<String>) -> (i32, i32) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ValidationInfo` is never constructed
[INFO] [stdout]  --> src/two.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct ValidationInfo {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_num_range` is never used
[INFO] [stdout]  --> src/two.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn get_num_range(s: &str) -> (usize, usize) {
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `line_to_valid_info` is never used
[INFO] [stdout]   --> src/two.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn line_to_valid_info(l: &String) -> ValidationInfo {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `password_is_valid` is never used
[INFO] [stdout]   --> src/two.rs:26:4
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn password_is_valid(v: &ValidationInfo) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `password_is_valid_v2` is never used
[INFO] [stdout]   --> src/two.rs:39:4
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn password_is_valid_v2(v: &ValidationInfo) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_answers` is never used
[INFO] [stdout]   --> src/two.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub fn get_answers(input: Vec<String>) -> (usize, usize) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/main.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |   fn lines_from_file(filename: impl AsRef<Path>) -> Vec<String> {
[INFO] [stdout]    |                      -------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 12 |       let file = File::open(filename).expect("No such file found.");
[INFO] [stdout]    |           ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 13 |       let buf = BufReader::new(file);
[INFO] [stdout]    |           --- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 14 |
[INFO] [stdout] 15 | /     buf.lines()
[INFO] [stdout] 16 | |         .map(|x| x.expect("Could not parse line"))
[INFO] [stdout]    | |__________________________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout]    = note: requested on the command line with `-D tail-expr-drop-order`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `aoc_2020` (bin "aoc_2020" test) due to 2 previous errors; 9 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `aoc_2020` (bin "aoc_2020") due to 2 previous errors; 9 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "bf58d52c7cdbfd9cb48bdfb7ad4e09cbcefb0bd75d47fe40f17cb3c7089ac593", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf58d52c7cdbfd9cb48bdfb7ad4e09cbcefb0bd75d47fe40f17cb3c7089ac593", kill_on_drop: false }`
[INFO] [stdout] bf58d52c7cdbfd9cb48bdfb7ad4e09cbcefb0bd75d47fe40f17cb3c7089ac593