[INFO] fetching crate dmclc5 0.3.0...
[INFO] testing dmclc5-0.3.0 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] extracting crate dmclc5 0.3.0 into /workspace/builds/worker-7-tc1/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-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate dmclc5 0.3.0 on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded derive_setters v0.1.6
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[INFO] [stderr]   Downloaded markdown-it v0.6.1
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[INFO] [stderr]   Downloaded rust-i18n-macro v3.1.2
[INFO] [stderr]   Downloaded rust-i18n-support v3.1.2
[INFO] [stderr]   Downloaded rust-i18n v3.1.2
[INFO] [stderr]   Downloaded acc_reader v2.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d237d841a35766aa0d9a2e4c9475dae8791f7983d0eb36241223977be29c2169
[INFO] running `Command { std: "docker" "start" "-a" "d237d841a35766aa0d9a2e4c9475dae8791f7983d0eb36241223977be29c2169", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d237d841a35766aa0d9a2e4c9475dae8791f7983d0eb36241223977be29c2169", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d237d841a35766aa0d9a2e4c9475dae8791f7983d0eb36241223977be29c2169", kill_on_drop: false }`
[INFO] [stdout] d237d841a35766aa0d9a2e4c9475dae8791f7983d0eb36241223977be29c2169
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bcdcac3033faf0904a48c2526479038d7711041f3c5e89e9f52f4fe6117d9197
[INFO] running `Command { std: "docker" "start" "-a" "bcdcac3033faf0904a48c2526479038d7711041f3c5e89e9f52f4fe6117d9197", kill_on_drop: false }`
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[INFO] [stderr]    Compiling 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:88:78
[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] [stderr] error: could not compile `dmclc5` (lib) due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "bcdcac3033faf0904a48c2526479038d7711041f3c5e89e9f52f4fe6117d9197", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bcdcac3033faf0904a48c2526479038d7711041f3c5e89e9f52f4fe6117d9197", kill_on_drop: false }`
[INFO] [stdout] bcdcac3033faf0904a48c2526479038d7711041f3c5e89e9f52f4fe6117d9197