[INFO] cloning repository https://github.com/layen-king/rust-learning
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/layen-king/rust-learning" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flayen-king%2Frust-learning", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flayen-king%2Frust-learning'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c2ccb7b92621ea15027cc19bd70284f9c0b23630
[INFO] checking layen-king/rust-learning against try#93086cfebfccb79083c59d0d3b2052944bba643c for pr-146440-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flayen-king%2Frust-learning" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/layen-king/rust-learning
[INFO] finished tweaking git repo https://github.com/layen-king/rust-learning
[INFO] tweaked toml for git repo https://github.com/layen-king/rust-learning written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/layen-king/rust-learning on toolchain 93086cfebfccb79083c59d0d3b2052944bba643c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 77 packages to latest compatible versions
[INFO] [stderr]       Adding rand v0.8.6 (available: v0.10.1)
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.18)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2a65ce60ab782cba0d8ab04fd54eab0816332d25e75cf9760db29ab3e94fb505
[INFO] running `Command { std: "docker" "start" "-a" "2a65ce60ab782cba0d8ab04fd54eab0816332d25e75cf9760db29ab3e94fb505", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2a65ce60ab782cba0d8ab04fd54eab0816332d25e75cf9760db29ab3e94fb505", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a65ce60ab782cba0d8ab04fd54eab0816332d25e75cf9760db29ab3e94fb505", kill_on_drop: false }`
[INFO] [stdout] 2a65ce60ab782cba0d8ab04fd54eab0816332d25e75cf9760db29ab3e94fb505
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 438499953dba0f32f34ca4e7b5720f77bfec6000047466f49bdd614db4018926
[INFO] running `Command { std: "docker" "start" "-a" "438499953dba0f32f34ca4e7b5720f77bfec6000047466f49bdd614db4018926", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v2.8.1
[INFO] [stderr]    Compiling zerocopy v0.8.50
[INFO] [stderr]     Checking futures-core v0.3.32
[INFO] [stderr]     Checking futures-sink v0.3.32
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking slab v0.4.12
[INFO] [stderr]     Checking smallvec v1.15.1
[INFO] [stderr]    Compiling serde_json v1.0.150
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]     Checking getrandom v0.2.17
[INFO] [stderr]     Checking errno v0.3.14
[INFO] [stderr]     Checking socket2 v0.6.4
[INFO] [stderr]     Checking anyhow v1.0.102
[INFO] [stderr]     Checking mio v1.2.1
[INFO] [stderr]     Checking rust_by_example v0.1.0 (/opt/rustwide/workdir/rust_by_example)
[INFO] [stderr]     Checking bufstream v0.1.4
[INFO] [stderr]     Checking signal-hook-registry v1.4.8
[INFO] [stdout] warning: struct `MinMax` is never constructed
[INFO] [stdout]  --> rust_by_example/src/print_display.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct MinMax(i64,i64);
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `List` is never constructed
[INFO] [stdout]   --> rust_by_example/src/print_display.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct List(Vec<i32>);
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Number` is never constructed
[INFO] [stdout]  --> rust_by_example/src/from_into.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Number {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Point` is never constructed
[INFO] [stdout]  --> rust_by_example/src/trait_add.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Point<T: Add<T, Output = T>> {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking futures-channel v0.3.32
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking parking_lot_core v0.9.12
[INFO] [stderr]     Checking parking_lot v0.12.5
[INFO] [stderr]     Checking aho-corasick v1.1.4
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking regex-automata v0.4.14
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking num-iter v0.1.45
[INFO] [stderr]     Checking num-rational v0.4.2
[INFO] [stderr]     Checking num v0.4.3
[INFO] [stderr]     Checking regex v1.12.3
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling futures-macro v0.3.32
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling tokio-macros v2.7.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking tokio v1.52.3
[INFO] [stderr]     Checking futures-util v0.3.32
[INFO] [stderr]     Checking rand v0.8.6
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]     Checking mime_types v0.1.0 (/opt/rustwide/workdir/mime_types)
[INFO] [stderr]     Checking leetcode v0.1.0 (/opt/rustwide/workdir/leetcode)
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stdout] error: struct `MapSum` is never constructed
[INFO] [stdout]   --> leetcode/src/map_sum.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct MapSum {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_structs)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `leetcode` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "438499953dba0f32f34ca4e7b5720f77bfec6000047466f49bdd614db4018926", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "438499953dba0f32f34ca4e7b5720f77bfec6000047466f49bdd614db4018926", kill_on_drop: false }`
[INFO] [stdout] 438499953dba0f32f34ca4e7b5720f77bfec6000047466f49bdd614db4018926