[INFO] cloning repository https://github.com/revol-xut/lf-benchmark-runner
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/revol-xut/lf-benchmark-runner" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frevol-xut%2Flf-benchmark-runner", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frevol-xut%2Flf-benchmark-runner'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 754fecc48abfaa0334d757cba1d2ce79afde4c78
[INFO] checking revol-xut/lf-benchmark-runner against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frevol-xut%2Flf-benchmark-runner" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/revol-xut/lf-benchmark-runner
[INFO] finished tweaking git repo https://github.com/revol-xut/lf-benchmark-runner
[INFO] tweaked toml for git repo https://github.com/revol-xut/lf-benchmark-runner written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/revol-xut/lf-benchmark-runner on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/revol-xut/lf-benchmark-runner 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c837b0ba3822cb6043bb2319ee80218375e69174cbc938341de97b7092487721
[INFO] running `Command { std: "docker" "start" "-a" "c837b0ba3822cb6043bb2319ee80218375e69174cbc938341de97b7092487721", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c837b0ba3822cb6043bb2319ee80218375e69174cbc938341de97b7092487721", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c837b0ba3822cb6043bb2319ee80218375e69174cbc938341de97b7092487721", kill_on_drop: false }`
[INFO] [stdout] c837b0ba3822cb6043bb2319ee80218375e69174cbc938341de97b7092487721
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5ed3e91abd66e5b0aa40751caf763a9d71523512a0886a34b616cebe4b47a32d
[INFO] running `Command { std: "docker" "start" "-a" "5ed3e91abd66e5b0aa40751caf763a9d71523512a0886a34b616cebe4b47a32d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling libc v0.2.122
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]    Compiling indexmap v1.8.1
[INFO] [stderr]     Checking ryu v1.0.9
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]     Checking svg v0.7.2
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking rustplotlib v0.0.4
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]    Compiling quote v1.0.17
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking regex v1.5.5
[INFO] [stderr]     Checking format_num v0.1.0
[INFO] [stderr]     Checking charts v0.3.0
[INFO] [stderr]    Compiling darling_core v0.12.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling clap_derive v3.1.7
[INFO] [stderr]    Compiling darling_macro v0.12.4
[INFO] [stderr]    Compiling darling v0.12.4
[INFO] [stderr]    Compiling derive_builder_core v0.11.1
[INFO] [stderr]     Checking clap v3.1.8
[INFO] [stderr]    Compiling derive_builder_macro v0.11.1
[INFO] [stderr]     Checking derive_builder v0.11.1
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking lf-benchmark-runner v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `ResultCollector` is never constructed
[INFO] [stdout]   --> src/main.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | struct ResultCollector {
[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 `JsonResult` is never constructed
[INFO] [stdout]   --> src/structs.rs:53:12
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub struct JsonResult {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/structs.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | /     #[clap(short, long)]
[INFO] [stdout] 14 | |     pub binary: Option<String>,
[INFO] [stdout]    | |______________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/structs.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | /     #[clap(short, long)]
[INFO] [stdout] 17 | |     pub target: Option<String>,
[INFO] [stdout]    | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/structs.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | /     #[clap(short, long)]
[INFO] [stdout] 20 | |     pub file: Option<String>,
[INFO] [stdout]    | |____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/structs.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | /     #[clap(short, long, default_value_t = String::from(""))]
[INFO] [stdout] 23 | |     pub name: String,
[INFO] [stdout]    | |____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/structs.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | /     #[clap(long, default_value_t = String::from("master"))]
[INFO] [stdout] 26 | |     pub runtime_version: String,
[INFO] [stdout]    | |_______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/structs.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | /     #[clap(short, long)]
[INFO] [stdout] 38 | |     pub image: Option<String>
[INFO] [stdout]    | |_____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ResultCollector` is never constructed
[INFO] [stdout]   --> src/main.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | struct ResultCollector {
[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 `JsonResult` is never constructed
[INFO] [stdout]   --> src/structs.rs:53:12
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub struct JsonResult {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lf-benchmark-runner` (bin "lf-benchmark-runner" test) due to 6 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/structs.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | /     #[clap(short, long)]
[INFO] [stdout] 14 | |     pub binary: Option<String>,
[INFO] [stdout]    | |______________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/structs.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | /     #[clap(short, long)]
[INFO] [stdout] 17 | |     pub target: Option<String>,
[INFO] [stdout]    | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/structs.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | /     #[clap(short, long)]
[INFO] [stdout] 20 | |     pub file: Option<String>,
[INFO] [stdout]    | |____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/structs.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | /     #[clap(short, long, default_value_t = String::from(""))]
[INFO] [stdout] 23 | |     pub name: String,
[INFO] [stdout]    | |____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/structs.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | /     #[clap(long, default_value_t = String::from("master"))]
[INFO] [stdout] 26 | |     pub runtime_version: String,
[INFO] [stdout]    | |_______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/structs.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | /     #[clap(short, long)]
[INFO] [stdout] 38 | |     pub image: Option<String>
[INFO] [stdout]    | |_____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lf-benchmark-runner` (bin "lf-benchmark-runner") due to 6 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "5ed3e91abd66e5b0aa40751caf763a9d71523512a0886a34b616cebe4b47a32d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ed3e91abd66e5b0aa40751caf763a9d71523512a0886a34b616cebe4b47a32d", kill_on_drop: false }`
[INFO] [stdout] 5ed3e91abd66e5b0aa40751caf763a9d71523512a0886a34b616cebe4b47a32d