[INFO] fetching crate dmclc5 0.3.0...
[INFO] checking dmclc5-0.3.0 against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1
[INFO] extracting crate dmclc5 0.3.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate dmclc5 0.3.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate dmclc5 0.3.0
[INFO] tweaked toml for crates.io crate dmclc5 0.3.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate dmclc5 0.3.0 on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate dmclc5 0.3.0 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" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d701b123250e1d2eb9bf90141dfa44f6a025296e73b36772471ffe04c0a80035
[INFO] running `Command { std: "docker" "start" "-a" "d701b123250e1d2eb9bf90141dfa44f6a025296e73b36772471ffe04c0a80035", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d701b123250e1d2eb9bf90141dfa44f6a025296e73b36772471ffe04c0a80035", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d701b123250e1d2eb9bf90141dfa44f6a025296e73b36772471ffe04c0a80035", kill_on_drop: false }`
[INFO] [stdout] d701b123250e1d2eb9bf90141dfa44f6a025296e73b36772471ffe04c0a80035
[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" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b7b081684cc5b9aa87def38e182f5994dafdb577ecada33475235b5972e0cf2f
[INFO] running `Command { std: "docker" "start" "-a" "b7b081684cc5b9aa87def38e182f5994dafdb577ecada33475235b5972e0cf2f", kill_on_drop: false }`
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[INFO] [stderr]     Checking dmclc5 v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]   --> src/minecraft/version.rs:88:42
[INFO] [stdout]    |
[INFO] [stdout] 88 |         if fs::metadata(path).is_ok() && let Ok(f) = fs::File::open(path) && let Ok(v) = serde_json::from_reader(f) {
[INFO] [stdout]    |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]   --> src/minecraft/version.rs:88:42
[INFO] [stdout]    |
[INFO] [stdout] 88 |         if fs::metadata(path).is_ok() && let Ok(f) = fs::File::open(path) && let Ok(v) = serde_json::from_reader(f) {
[INFO] [stdout]    |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]   --> src/minecraft/version.rs:88:78
[INFO] [stdout]    |
[INFO] [stdout] 88 |         if fs::metadata(path).is_ok() && let Ok(f) = fs::File::open(path) && let Ok(v) = serde_json::from_reader(f) {
[INFO] [stdout]    |                                                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]   --> src/minecraft/version.rs:88:78
[INFO] [stdout]    |
[INFO] [stdout] 88 |         if fs::metadata(path).is_ok() && let Ok(f) = fs::File::open(path) && let Ok(v) = serde_json::from_reader(f) {
[INFO] [stdout]    |                                                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `let_chains` has been stable since 1.88.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(let_chains)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `let_chains` has been stable since 1.88.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(let_chains)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dmclc5` (lib test) due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `dmclc5` (lib) due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "b7b081684cc5b9aa87def38e182f5994dafdb577ecada33475235b5972e0cf2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7b081684cc5b9aa87def38e182f5994dafdb577ecada33475235b5972e0cf2f", kill_on_drop: false }`
[INFO] [stdout] b7b081684cc5b9aa87def38e182f5994dafdb577ecada33475235b5972e0cf2f