[INFO] cloning repository https://github.com/autoai-incubator/uper
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/autoai-incubator/uper" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fautoai-incubator%2Fuper", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fautoai-incubator%2Fuper'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2152aad8fd60c82a692e6da533f4087925ca207c
[INFO] checking autoai-incubator/uper against try#c8bdaa84ec1b37f18f30375e196a65b7602f3790 for pr-73345
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fautoai-incubator%2Fuper" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/autoai-incubator/uper on toolchain c8bdaa84ec1b37f18f30375e196a65b7602f3790
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/autoai-incubator/uper
[INFO] finished tweaking git repo https://github.com/autoai-incubator/uper
[INFO] tweaked toml for git repo https://github.com/autoai-incubator/uper written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/autoai-incubator/uper already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a472bcb2761534c891e3b927dcdc8368166776de01f04725a0ad59af752255ac
[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" "a472bcb2761534c891e3b927dcdc8368166776de01f04725a0ad59af752255ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a472bcb2761534c891e3b927dcdc8368166776de01f04725a0ad59af752255ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a472bcb2761534c891e3b927dcdc8368166776de01f04725a0ad59af752255ac", kill_on_drop: false }`
[INFO] [stdout] a472bcb2761534c891e3b927dcdc8368166776de01f04725a0ad59af752255ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e1c8f9458c5ad55d5ec1be69cd0c3627df6f384a24fd5306beb21b79f8cd685d
[INFO] running `Command { std: "docker" "start" "-a" "e1c8f9458c5ad55d5ec1be69cd0c3627df6f384a24fd5306beb21b79f8cd685d", kill_on_drop: false }`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking linked-hash-map v0.5.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking yaml-rust v0.4.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking uper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `stdout`
[INFO] [stdout]   --> src/pipeline.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let stdout = Command::new(command)
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_stdout`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `exec_shell`
[INFO] [stdout]   --> src/pipeline.rs:28:4
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn exec_shell(command: &String) -> Result<(), Error> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stdout`
[INFO] [stdout]   --> src/pipeline.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let stdout = Command::new(command)
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_stdout`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `exec_shell`
[INFO] [stdout]   --> src/pipeline.rs:28:4
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn exec_shell(command: &String) -> Result<(), Error> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.48s
[INFO] running `Command { std: "docker" "inspect" "e1c8f9458c5ad55d5ec1be69cd0c3627df6f384a24fd5306beb21b79f8cd685d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1c8f9458c5ad55d5ec1be69cd0c3627df6f384a24fd5306beb21b79f8cd685d", kill_on_drop: false }`
[INFO] [stdout] e1c8f9458c5ad55d5ec1be69cd0c3627df6f384a24fd5306beb21b79f8cd685d