[INFO] cloning repository https://github.com/mackerelio-labs/mackerel-agent_rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mackerelio-labs/mackerel-agent_rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmackerelio-labs%2Fmackerel-agent_rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmackerelio-labs%2Fmackerel-agent_rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6b287819cb717d2b8ba2f2c9ddabf2f1d3370784
[INFO] checking mackerelio-labs/mackerel-agent_rs against try#7c3a44cf5f95fa5cf164a312bdcf845157af7093 for pr-77325
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmackerelio-labs%2Fmackerel-agent_rs" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mackerelio-labs/mackerel-agent_rs on toolchain 7c3a44cf5f95fa5cf164a312bdcf845157af7093
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7c3a44cf5f95fa5cf164a312bdcf845157af7093" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/mackerelio-labs/mackerel-agent_rs
[INFO] finished tweaking git repo https://github.com/mackerelio-labs/mackerel-agent_rs
[INFO] tweaked toml for git repo https://github.com/mackerelio-labs/mackerel-agent_rs written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/mackerelio-labs/mackerel-agent_rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7c3a44cf5f95fa5cf164a312bdcf845157af7093" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/Krout0n/mackerel-client-rs`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded normalize-line-endings v0.3.0
[INFO] [stderr]   Downloaded mockall_derive v0.8.3
[INFO] [stderr]   Downloaded futures-executor v0.3.7
[INFO] [stderr]   Downloaded os_stat v0.1.0
[INFO] [stderr]   Downloaded backtrace v0.3.54
[INFO] [stderr]   Downloaded os_str_bytes v2.3.2
[INFO] [stderr]   Downloaded compile-time-run v0.2.11
[INFO] [stderr]   Downloaded fragile v1.0.0
[INFO] [stderr]   Downloaded strsim v0.10.0
[INFO] [stderr]   Downloaded clap_derive v3.0.0-beta.2
[INFO] [stderr]   Downloaded textwrap v0.12.1
[INFO] [stderr]   Downloaded signal-hook-registry v1.2.2
[INFO] [stderr]   Downloaded clap v3.0.0-beta.2
[INFO] [stderr]   Downloaded downcast v0.10.0
[INFO] [stderr]   Downloaded miow v0.3.5
[INFO] [stderr]   Downloaded float-cmp v0.8.0
[INFO] [stderr]   Downloaded predicates v1.0.5
[INFO] [stderr]   Downloaded mockall v0.8.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7c3a44cf5f95fa5cf164a312bdcf845157af7093" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8b32f75abc972c2d207955ccdb623a0f18b31cfc3115a6a58e4a217f104fc4df
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8b32f75abc972c2d207955ccdb623a0f18b31cfc3115a6a58e4a217f104fc4df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b32f75abc972c2d207955ccdb623a0f18b31cfc3115a6a58e4a217f104fc4df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b32f75abc972c2d207955ccdb623a0f18b31cfc3115a6a58e4a217f104fc4df", kill_on_drop: false }`
[INFO] [stdout] 8b32f75abc972c2d207955ccdb623a0f18b31cfc3115a6a58e4a217f104fc4df
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7c3a44cf5f95fa5cf164a312bdcf845157af7093" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 540f7d1cbca5d40380d198929a6b234b959f07fe90760fcf880ecf3b3b012bc7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "540f7d1cbca5d40380d198929a6b234b959f07fe90760fcf880ecf3b3b012bc7", kill_on_drop: false }`
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]    Compiling encoding_rs v0.8.26
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking object v0.22.0
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking predicates-core v1.0.0
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking os_str_bytes v2.3.2
[INFO] [stderr]     Checking treeline v0.1.0
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]     Checking fragile v1.0.0
[INFO] [stderr]     Checking downcast v0.10.0
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking addr2line v0.14.0
[INFO] [stderr]     Checking textwrap v0.12.1
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking predicates-tree v1.0.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking signal-hook-registry v1.2.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking os_stat v0.1.0
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking tracing v0.1.21
[INFO] [stderr]     Checking float-cmp v0.8.0
[INFO] [stderr]    Compiling compile-time-run v0.2.11
[INFO] [stderr]    Compiling mockall_derive v0.8.3
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking futures-util v0.3.7
[INFO] [stdout] error[E0599]: no method named `fold_first` found for struct `std::vec::IntoIter<u64>` in the current scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/os_stat-0.1.0/src/cpu.rs:60:39
[INFO] [stdout]    |
[INFO] [stdout] 60 |         stat.total = vals.into_iter().fold_first(|acc, val| acc + val).unwrap();
[INFO] [stdout]    |                                       ^^^^^^^^^^ method not found in `std::vec::IntoIter<u64>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `os_stat`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "540f7d1cbca5d40380d198929a6b234b959f07fe90760fcf880ecf3b3b012bc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "540f7d1cbca5d40380d198929a6b234b959f07fe90760fcf880ecf3b3b012bc7", kill_on_drop: false }`
[INFO] [stdout] 540f7d1cbca5d40380d198929a6b234b959f07fe90760fcf880ecf3b3b012bc7