[INFO] cloning repository https://github.com/chenzhc/my-redis
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chenzhc/my-redis" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchenzhc%2Fmy-redis", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchenzhc%2Fmy-redis'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fc2cdaec356058e7795ff449c0f75c69580ace3b
[INFO] checking chenzhc/my-redis against try#93086cfebfccb79083c59d0d3b2052944bba643c for pr-146440-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchenzhc%2Fmy-redis" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/chenzhc/my-redis
[INFO] finished tweaking git repo https://github.com/chenzhc/my-redis
[INFO] tweaked toml for git repo https://github.com/chenzhc/my-redis written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/chenzhc/my-redis 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] crate git repo https://github.com/chenzhc/my-redis 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" "+93086cfebfccb79083c59d0d3b2052944bba643c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 7dcbfd526cf99fcafbf3e6d0775e0acec379acd7cf444e1f85fc3938bb4f04a7
[INFO] running `Command { std: "docker" "start" "-a" "7dcbfd526cf99fcafbf3e6d0775e0acec379acd7cf444e1f85fc3938bb4f04a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7dcbfd526cf99fcafbf3e6d0775e0acec379acd7cf444e1f85fc3938bb4f04a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7dcbfd526cf99fcafbf3e6d0775e0acec379acd7cf444e1f85fc3938bb4f04a7", kill_on_drop: false }`
[INFO] [stdout] 7dcbfd526cf99fcafbf3e6d0775e0acec379acd7cf444e1f85fc3938bb4f04a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] a9ed931c7fcd7b8b85c84933b73fb0a39703489ae8f77910fad9ae6537d6a810
[INFO] running `Command { std: "docker" "start" "-a" "a9ed931c7fcd7b8b85c84933b73fb0a39703489ae8f77910fad9ae6537d6a810", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling unicode-ident v1.0.19
[INFO] [stderr]     Checking pin-project-lite v0.2.16
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]     Checking cfg-if v1.0.3
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]     Checking futures-core v0.3.31
[INFO] [stderr]     Checking futures-io v0.3.31
[INFO] [stderr]     Checking parking v2.2.1
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]     Checking memchr v2.7.5
[INFO] [stderr]     Checking fastrand v2.3.0
[INFO] [stderr]     Checking slab v0.4.11
[INFO] [stderr]    Compiling rustix v1.1.2
[INFO] [stderr]    Compiling lock_api v0.4.13
[INFO] [stderr]     Checking num-traits v0.2.19
[INFO] [stderr]     Checking linux-raw-sys v0.11.0
[INFO] [stderr]     Checking bitflags v2.9.4
[INFO] [stderr]     Checking once_cell v1.21.3
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]     Checking tracing-core v0.1.34
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking itoa v1.0.15
[INFO] [stderr]     Checking ryu v1.0.20
[INFO] [stderr]     Checking async-task v4.7.1
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling zerocopy v0.8.27
[INFO] [stderr]     Checking futures-lite v2.6.1
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling serde_json v1.0.143
[INFO] [stderr]     Checking piper v0.2.4
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking iana-time-zone v0.1.63
[INFO] [stderr]    Compiling crc32fast v1.5.0
[INFO] [stderr]     Checking futures-sink v0.3.31
[INFO] [stderr]     Checking unicode-width v0.1.14
[INFO] [stderr]     Checking regex-syntax v0.8.6
[INFO] [stderr]    Compiling unicode-segmentation v1.12.0
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]     Checking adler2 v2.0.1
[INFO] [stderr]     Checking futures-task v0.3.31
[INFO] [stderr]    Compiling anyhow v1.0.100
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling thiserror v2.0.16
[INFO] [stderr]     Checking destructure_traitobject v0.2.0
[INFO] [stderr]     Checking bytes v1.10.1
[INFO] [stderr]    Compiling unicode-xid v0.2.6
[INFO] [stderr]     Checking hashbrown v0.15.5
[INFO] [stderr]     Checking chrono v0.4.42
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking equivalent v1.0.2
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking ordered-float v2.10.1
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]     Checking unsafe-any-ors v1.0.0
[INFO] [stderr]     Checking miniz_oxide v0.8.9
[INFO] [stderr]     Checking concurrent-queue v2.5.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.6
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]     Checking event-listener v5.4.1
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking socket2 v0.6.0
[INFO] [stderr]     Checking rand_core v0.9.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking parking_lot v0.12.4
[INFO] [stderr]     Checking mio v1.0.4
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking indexmap v2.11.1
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking matchers v0.0.1
[INFO] [stderr]     Checking sharded-slab v0.1.7
[INFO] [stderr]     Checking thread_local v1.1.9
[INFO] [stderr]     Checking event-listener-strategy v0.5.4
[INFO] [stderr]     Checking unsafe-libyaml v0.2.11
[INFO] [stderr]     Checking powerfmt v0.2.0
[INFO] [stderr]     Checking flate2 v1.1.2
[INFO] [stderr]     Checking async-lock v3.4.1
[INFO] [stderr]     Checking async-channel v2.5.0
[INFO] [stderr]     Checking deranged v0.5.3
[INFO] [stderr]     Checking async-executor v1.13.3
[INFO] [stderr]     Checking crossbeam-deque v0.8.6
[INFO] [stderr]     Checking thread-id v5.0.0
[INFO] [stderr]     Checking blocking v1.6.2
[INFO] [stderr]     Checking crossbeam-channel v0.5.15
[INFO] [stderr]     Checking crossbeam-queue v0.3.12
[INFO] [stderr]     Checking typemap-ors v1.0.0
[INFO] [stderr]     Checking atoi v0.3.3
[INFO] [stderr]     Checking csv-core v0.1.12
[INFO] [stderr]     Checking arc-swap v1.7.1
[INFO] [stderr]     Checking time-core v0.1.6
[INFO] [stderr]     Checking mock_instant v0.6.0
[INFO] [stderr]     Checking log-mdc v0.1.0
[INFO] [stderr]     Checking num-conv v0.1.0
[INFO] [stderr]     Checking humantime v2.3.0
[INFO] [stderr]     Checking async-fs v2.1.3
[INFO] [stderr]     Checking dotenvy v0.15.7
[INFO] [stderr]     Checking dotenv v0.15.0
[INFO] [stderr]     Checking crossbeam v0.8.4
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking regex-automata v0.4.10
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]     Checking rand v0.9.2
[INFO] [stderr]     Checking time v0.3.43
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking regex v1.11.2
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling pin-project-internal v1.1.10
[INFO] [stderr]    Compiling thiserror-impl v2.0.16
[INFO] [stderr]    Compiling async-stream-impl v0.3.6
[INFO] [stderr]    Compiling derive_more-impl v2.0.1
[INFO] [stderr]    Compiling num-derive v0.4.2
[INFO] [stderr]     Checking polling v3.10.0
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking async-io v2.5.0
[INFO] [stderr]     Checking async-stream v0.3.6
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking tokio v1.47.1
[INFO] [stderr]     Checking async-signal v0.2.12
[INFO] [stderr]     Checking async-net v2.0.0
[INFO] [stderr]     Checking async-process v2.4.0
[INFO] [stderr]     Checking pin-project v1.1.10
[INFO] [stderr]     Checking smol v2.0.2
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]     Checking derive_more v2.0.1
[INFO] [stderr]     Checking futures-executor v0.3.31
[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stderr]     Checking log v0.4.28
[INFO] [stderr]     Checking tracing-serde v0.1.3
[INFO] [stderr]     Checking serde_yaml v0.9.34+deprecated
[INFO] [stderr]     Checking serde-value v0.7.0
[INFO] [stderr]     Checking csv v1.3.1
[INFO] [stderr]     Checking tracing-log v0.1.4
[INFO] [stderr]     Checking tracing-subscriber v0.2.25
[INFO] [stderr]     Checking tokio-stream v0.1.17
[INFO] [stderr]     Checking log4rs v1.4.0
[INFO] [stderr]     Checking mini-redis v0.4.1
[INFO] [stderr]     Checking my-redis v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: struct `V4` is never constructed
[INFO] [stdout]    --> src/async_test.rs:170:12
[INFO] [stdout]     |
[INFO] [stdout] 170 | pub struct V4(String);
[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] [stdout] error: struct `V6` is never constructed
[INFO] [stdout]    --> src/async_test.rs:177:12
[INFO] [stdout]     |
[INFO] [stdout] 177 | pub struct V6(String);
[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] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `my-redis` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "a9ed931c7fcd7b8b85c84933b73fb0a39703489ae8f77910fad9ae6537d6a810", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9ed931c7fcd7b8b85c84933b73fb0a39703489ae8f77910fad9ae6537d6a810", kill_on_drop: false }`
[INFO] [stdout] a9ed931c7fcd7b8b85c84933b73fb0a39703489ae8f77910fad9ae6537d6a810