[INFO] cloning repository https://github.com/RetroRick/snippet_generator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RetroRick/snippet_generator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRetroRick%2Fsnippet_generator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRetroRick%2Fsnippet_generator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 66e450076991c9bc2163bf73ee0c94df6c7a64f1
[INFO] checking RetroRick/snippet_generator against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRetroRick%2Fsnippet_generator" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/RetroRick/snippet_generator on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/RetroRick/snippet_generator
[INFO] finished tweaking git repo https://github.com/RetroRick/snippet_generator
[INFO] tweaked toml for git repo https://github.com/RetroRick/snippet_generator written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/RetroRick/snippet_generator 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7bb82118a2ecc24a9efb2cd7b1212969c82f78e59c4bc534ba7ca06905f1c04d
[INFO] running `Command { std: "docker" "start" "-a" "7bb82118a2ecc24a9efb2cd7b1212969c82f78e59c4bc534ba7ca06905f1c04d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7bb82118a2ecc24a9efb2cd7b1212969c82f78e59c4bc534ba7ca06905f1c04d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bb82118a2ecc24a9efb2cd7b1212969c82f78e59c4bc534ba7ca06905f1c04d", kill_on_drop: false }`
[INFO] [stdout] 7bb82118a2ecc24a9efb2cd7b1212969c82f78e59c4bc534ba7ca06905f1c04d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a2c70805c7e6d37f3499724b728eb99f6842406e9f58ec0594ffb4be316ca37
[INFO] running `Command { std: "docker" "start" "-a" "6a2c70805c7e6d37f3499724b728eb99f6842406e9f58ec0594ffb4be316ca37", kill_on_drop: false }`
[INFO] [stderr]     Checking snippet_generator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum `ValidTokens` is never used
[INFO] [stdout]  --> src/tokenizer.rs:8:6
[INFO] [stdout]   |
[INFO] [stdout] 8 | enum ValidTokens {
[INFO] [stdout]   |      ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ValidTokens` is never used
[INFO] [stdout]  --> src/tokenizer.rs:8:6
[INFO] [stdout]   |
[INFO] [stdout] 8 | enum ValidTokens {
[INFO] [stdout]   |      ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ValidTokenMapper` is never constructed
[INFO] [stdout]   --> src/tokenizer.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct ValidTokenMapper{
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/tokenizer.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl ValidTokenMapper{
[INFO] [stdout]    | --------------------- associated function in this implementation
[INFO] [stdout] 28 |     fn new() -> ValidTokenMapper {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ValidTokenMapper` is never constructed
[INFO] [stdout]   --> src/tokenizer.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct ValidTokenMapper{
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `validate_token` is never used
[INFO] [stdout]   --> src/tokenizer.rs:50:4
[INFO] [stdout]    |
[INFO] [stdout] 50 | fn validate_token(ch: &String) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/tokenizer.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl ValidTokenMapper{
[INFO] [stdout]    | --------------------- associated function in this implementation
[INFO] [stdout] 28 |     fn new() -> ValidTokenMapper {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `validate_token` is never used
[INFO] [stdout]   --> src/tokenizer.rs:50:4
[INFO] [stdout]    |
[INFO] [stdout] 50 | fn validate_token(ch: &String) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] running `Command { std: "docker" "inspect" "6a2c70805c7e6d37f3499724b728eb99f6842406e9f58ec0594ffb4be316ca37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a2c70805c7e6d37f3499724b728eb99f6842406e9f58ec0594ffb4be316ca37", kill_on_drop: false }`
[INFO] [stdout] 6a2c70805c7e6d37f3499724b728eb99f6842406e9f58ec0594ffb4be316ca37
[INFO] checking RetroRick/snippet_generator against try#f9935d29d867449445ee008640ccca1bf1ae0889+rustflags=-Dtail_expr_drop_order for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRetroRick%2Fsnippet_generator" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/RetroRick/snippet_generator on toolchain f9935d29d867449445ee008640ccca1bf1ae0889
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/RetroRick/snippet_generator
[INFO] finished tweaking git repo https://github.com/RetroRick/snippet_generator
[INFO] tweaked toml for git repo https://github.com/RetroRick/snippet_generator written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/RetroRick/snippet_generator 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" "+f9935d29d867449445ee008640ccca1bf1ae0889" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b6a90a70b63c3df8966947b18ce3399de3aae7c84030ef0964bced1e8a4b2911
[INFO] running `Command { std: "docker" "start" "-a" "b6a90a70b63c3df8966947b18ce3399de3aae7c84030ef0964bced1e8a4b2911", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b6a90a70b63c3df8966947b18ce3399de3aae7c84030ef0964bced1e8a4b2911", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6a90a70b63c3df8966947b18ce3399de3aae7c84030ef0964bced1e8a4b2911", kill_on_drop: false }`
[INFO] [stdout] b6a90a70b63c3df8966947b18ce3399de3aae7c84030ef0964bced1e8a4b2911
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+f9935d29d867449445ee008640ccca1bf1ae0889" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3f8b00365c56519bfefc2a4d7c25d2d7c3117a0bbb52ba1aa0a200c4ddaaabd6
[INFO] running `Command { std: "docker" "start" "-a" "3f8b00365c56519bfefc2a4d7c25d2d7c3117a0bbb52ba1aa0a200c4ddaaabd6", kill_on_drop: false }`
[INFO] [stderr]     Checking snippet_generator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum `ValidTokens` is never used
[INFO] [stdout]  --> src/tokenizer.rs:8:6
[INFO] [stdout]   |
[INFO] [stdout] 8 | enum ValidTokens {
[INFO] [stdout]   |      ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ValidTokens` is never used
[INFO] [stdout]  --> src/tokenizer.rs:8:6
[INFO] [stdout]   |
[INFO] [stdout] 8 | enum ValidTokens {
[INFO] [stdout]   |      ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ValidTokenMapper` is never constructed
[INFO] [stdout]   --> src/tokenizer.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct ValidTokenMapper{
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ValidTokenMapper` is never constructed
[INFO] [stdout]   --> src/tokenizer.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct ValidTokenMapper{
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/tokenizer.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl ValidTokenMapper{
[INFO] [stdout]    | --------------------- associated function in this implementation
[INFO] [stdout] 28 |     fn new() -> ValidTokenMapper {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `validate_token` is never used
[INFO] [stdout]   --> src/tokenizer.rs:50:4
[INFO] [stdout]    |
[INFO] [stdout] 50 | fn validate_token(ch: &String) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/tokenizer.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl ValidTokenMapper{
[INFO] [stdout]    | --------------------- associated function in this implementation
[INFO] [stdout] 28 |     fn new() -> ValidTokenMapper {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `validate_token` is never used
[INFO] [stdout]   --> src/tokenizer.rs:50:4
[INFO] [stdout]    |
[INFO] [stdout] 50 | fn validate_token(ch: &String) -> bool {
[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/file_parser.rs:31:15
[INFO] [stdout]    |
[INFO] [stdout] 27 |         let mut file = match File::open(&path) {
[INFO] [stdout]    |                 ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 28 |             Err(why) => panic!("couldn't open {}: {}", display, why),
[INFO] [stdout]    |                 --- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 29 |             Ok(file) => file,
[INFO] [stdout]    |                ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 30 |         };
[INFO] [stdout] 31 |         match file.read_to_string(&mut self.m_raw_data) {
[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: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/file_parser.rs:31:15
[INFO] [stdout]    |
[INFO] [stdout] 27 |         let mut file = match File::open(&path) {
[INFO] [stdout]    |                 ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 28 |             Err(why) => panic!("couldn't open {}: {}", display, why),
[INFO] [stdout]    |                 --- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 29 |             Ok(file) => file,
[INFO] [stdout]    |                ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 30 |         };
[INFO] [stdout] 31 |         match file.read_to_string(&mut self.m_raw_data) {
[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; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `snippet_generator` (bin "snippet_generator") due to 2 previous errors; 4 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `snippet_generator` (bin "snippet_generator" test) due to 2 previous errors; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "3f8b00365c56519bfefc2a4d7c25d2d7c3117a0bbb52ba1aa0a200c4ddaaabd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f8b00365c56519bfefc2a4d7c25d2d7c3117a0bbb52ba1aa0a200c4ddaaabd6", kill_on_drop: false }`
[INFO] [stdout] 3f8b00365c56519bfefc2a4d7c25d2d7c3117a0bbb52ba1aa0a200c4ddaaabd6