[INFO] cloning repository https://github.com/tsinghtech-research/mqsrv-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tsinghtech-research/mqsrv-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftsinghtech-research%2Fmqsrv-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftsinghtech-research%2Fmqsrv-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 22bb2270a64a43255573605aad10ea12bf0ddcfc
[INFO] documenting tsinghtech-research/mqsrv-rs against beta-2026-01-20 for beta-1.94-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftsinghtech-research%2Fmqsrv-rs" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/tsinghtech-research/mqsrv-rs
[INFO] finished tweaking git repo https://github.com/tsinghtech-research/mqsrv-rs
[INFO] tweaked toml for git repo https://github.com/tsinghtech-research/mqsrv-rs written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tsinghtech-research/mqsrv-rs on toolchain beta-2026-01-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/tsinghtech-research/mqsrv-rs 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" "+beta-2026-01-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: file `/workspace/builds/worker-2-tc2/source/examples/run_client_event.rs` found to be present in multiple build targets:
[INFO] [stderr]   * `bin` target `run_client_event`
[INFO] [stderr]   * `example` target `run_client_event`
[INFO] [stderr] warning: file `/workspace/builds/worker-2-tc2/source/examples/run_server_event.rs` found to be present in multiple build targets:
[INFO] [stderr]   * `bin` target `run_server_event`
[INFO] [stderr]   * `example` target `run_server_event`
[INFO] [stderr] warning: file `/workspace/builds/worker-2-tc2/source/examples/run_server.rs` found to be present in multiple build targets:
[INFO] [stderr]   * `bin` target `run_server`
[INFO] [stderr]   * `example` target `run_server`
[INFO] [stderr] warning: file `/workspace/builds/worker-2-tc2/source/examples/run_client.rs` found to be present in multiple build targets:
[INFO] [stderr]   * `bin` target `run_client`
[INFO] [stderr]   * `example` target `run_client`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
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[INFO] [stderr]   Downloaded asn1-rs v0.7.0
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[INFO] [stderr]   Downloaded ring v0.17.13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b0dd4ff8d1d6746f84e677201ea56e0c4e3d921646bf29f01a125caa7418aa17
[INFO] running `Command { std: "docker" "start" "-a" "b0dd4ff8d1d6746f84e677201ea56e0c4e3d921646bf29f01a125caa7418aa17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b0dd4ff8d1d6746f84e677201ea56e0c4e3d921646bf29f01a125caa7418aa17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0dd4ff8d1d6746f84e677201ea56e0c4e3d921646bf29f01a125caa7418aa17", kill_on_drop: false }`
[INFO] [stdout] b0dd4ff8d1d6746f84e677201ea56e0c4e3d921646bf29f01a125caa7418aa17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 977c00cd9490b4704ee4b585fcae5393ef17606d4fedfb63efebada04932736a
[INFO] running `Command { std: "docker" "start" "-a" "977c00cd9490b4704ee4b585fcae5393ef17606d4fedfb63efebada04932736a", kill_on_drop: false }`
[INFO] [stderr] warning: file `/opt/rustwide/workdir/examples/run_client_event.rs` found to be present in multiple build targets:
[INFO] [stderr]   * `bin` target `run_client_event`
[INFO] [stderr]   * `example` target `run_client_event`
[INFO] [stderr] warning: file `/opt/rustwide/workdir/examples/run_server_event.rs` found to be present in multiple build targets:
[INFO] [stderr]   * `bin` target `run_server_event`
[INFO] [stderr]   * `example` target `run_server_event`
[INFO] [stderr] warning: file `/opt/rustwide/workdir/examples/run_server.rs` found to be present in multiple build targets:
[INFO] [stderr]   * `bin` target `run_server`
[INFO] [stderr]   * `example` target `run_server`
[INFO] [stderr] warning: file `/opt/rustwide/workdir/examples/run_client.rs` found to be present in multiple build targets:
[INFO] [stderr]   * `bin` target `run_client`
[INFO] [stderr]   * `example` target `run_client`
[INFO] [stderr]    Compiling libc v0.2.170
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[INFO] [stderr]     Checking toml_datetime v0.6.8
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[INFO] [stderr]     Checking uuid v1.15.1
[INFO] [stderr]     Checking toml_edit v0.22.24
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[INFO] [stderr]     Checking toml v0.8.20
[INFO] [stderr]     Checking config v0.14.1
[INFO] [stderr]     Checking polling v3.7.4
[INFO] [stderr]     Checking async-io v2.4.0
[INFO] [stderr]     Checking async-global-executor v3.1.0
[INFO] [stderr]     Checking async-global-executor-trait v2.2.0
[INFO] [stderr]  Documenting mqsrv-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking mqsrv-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `json`
[INFO] [stdout]   --> src/client.rs:17:18
[INFO] [stdout]    |
[INFO] [stdout] 17 | use serde_json::{json, Value};
[INFO] [stdout]    |                  ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `pool_size` is never read
[INFO] [stdout]   --> src/server.rs:78:5
[INFO] [stdout]    |
[INFO] [stdout] 60 | pub struct MessageQueueServer {
[INFO] [stdout]    |            ------------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 78 |     pool_size: usize,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 13s
[INFO] [stderr]    Generated /opt/rustwide/target/doc/mqsrv_rs/index.html and 4 other files
[INFO] running `Command { std: "docker" "inspect" "977c00cd9490b4704ee4b585fcae5393ef17606d4fedfb63efebada04932736a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "977c00cd9490b4704ee4b585fcae5393ef17606d4fedfb63efebada04932736a", kill_on_drop: false }`
[INFO] [stdout] 977c00cd9490b4704ee4b585fcae5393ef17606d4fedfb63efebada04932736a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=1" "-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "rustdoc" "--lib" "-Zrustdoc-map" "--config" "build.rustdocflags=[\"--cfg\", \"docsrs\", \"-Z\", \"unstable-options\", \"--document-private-items\"]" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f8f83d7412c820a004247acce8544998e5e32fa19c9b16ea1da6342c33252c7
[INFO] running `Command { std: "docker" "start" "-a" "5f8f83d7412c820a004247acce8544998e5e32fa19c9b16ea1da6342c33252c7", kill_on_drop: false }`
[INFO] [stderr] warning: file `/opt/rustwide/workdir/examples/run_client_event.rs` found to be present in multiple build targets:
[INFO] [stderr]   * `bin` target `run_client_event`
[INFO] [stderr]   * `example` target `run_client_event`
[INFO] [stderr] warning: file `/opt/rustwide/workdir/examples/run_server.rs` found to be present in multiple build targets:
[INFO] [stderr]   * `bin` target `run_server`
[INFO] [stderr]   * `example` target `run_server`
[INFO] [stderr] warning: file `/opt/rustwide/workdir/examples/run_server_event.rs` found to be present in multiple build targets:
[INFO] [stderr]   * `bin` target `run_server_event`
[INFO] [stderr]   * `example` target `run_server_event`
[INFO] [stderr] warning: file `/opt/rustwide/workdir/examples/run_client.rs` found to be present in multiple build targets:
[INFO] [stderr]   * `bin` target `run_client`
[INFO] [stderr]   * `example` target `run_client`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling thiserror v2.0.12
[INFO] [stderr]    Compiling anyhow v1.0.97
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stdout] error[E0425]: cannot find type `SourceFile` in crate `proc_macro`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.94/src/wrapper.rs:366:26
[INFO] [stdout]     |
[INFO] [stdout] 366 |     Compiler(proc_macro::SourceFile),
[INFO] [stdout]     |                          ^^^^^^^^^^ not found in `proc_macro`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these structs
[INFO] [stdout]     |
[INFO] [stdout]   1 + use crate::SourceFile;
[INFO] [stdout]     |
[INFO] [stdout]   1 + use crate::fallback::SourceFile;
[INFO] [stdout]     |
[INFO] [stdout] help: if you import `SourceFile`, refer to it directly
[INFO] [stdout]     |
[INFO] [stdout] 366 -     Compiler(proc_macro::SourceFile),
[INFO] [stdout] 366 +     Compiler(SourceFile),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `SourceFile` in crate `proc_macro`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.94/src/wrapper.rs:372:32
[INFO] [stdout]     |
[INFO] [stdout] 372 |     fn nightly(sf: proc_macro::SourceFile) -> Self {
[INFO] [stdout]     |                                ^^^^^^^^^^ not found in `proc_macro`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these structs
[INFO] [stdout]     |
[INFO] [stdout]   1 + use crate::SourceFile;
[INFO] [stdout]     |
[INFO] [stdout]   1 + use crate::fallback::SourceFile;
[INFO] [stdout]     |
[INFO] [stdout] help: if you import `SourceFile`, refer to it directly
[INFO] [stdout]     |
[INFO] [stdout] 372 -     fn nightly(sf: proc_macro::SourceFile) -> Self {
[INFO] [stdout] 372 +     fn nightly(sf: SourceFile) -> Self {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `source_file` found for reference `&proc_macro::Span` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.94/src/wrapper.rs:462:56
[INFO] [stdout]     |
[INFO] [stdout] 462 |             Span::Compiler(s) => SourceFile::nightly(s.source_file()),
[INFO] [stdout]     |                                                        ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a method `source` with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 462 -             Span::Compiler(s) => SourceFile::nightly(s.source_file()),
[INFO] [stdout] 462 +             Span::Compiler(s) => SourceFile::nightly(s.source()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "5f8f83d7412c820a004247acce8544998e5e32fa19c9b16ea1da6342c33252c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f8f83d7412c820a004247acce8544998e5e32fa19c9b16ea1da6342c33252c7", kill_on_drop: false }`
[INFO] [stdout] 5f8f83d7412c820a004247acce8544998e5e32fa19c9b16ea1da6342c33252c7
