[INFO] cloning repository https://github.com/brahms116/sane_csv_json
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/brahms116/sane_csv_json" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrahms116%2Fsane_csv_json", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrahms116%2Fsane_csv_json'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 263d22a11d3a2e6d63cb235e1fb480bf66029841
[INFO] checking brahms116/sane_csv_json 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%2Fbrahms116%2Fsane_csv_json" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/brahms116/sane_csv_json
[INFO] finished tweaking git repo https://github.com/brahms116/sane_csv_json
[INFO] tweaked toml for git repo https://github.com/brahms116/sane_csv_json written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/brahms116/sane_csv_json 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/brahms116/sane_csv_json 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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] f9461be16e8b2f17fc242a4a9a82c67ec720281f55b95818fba8e1579b9bb73d
[INFO] running `Command { std: "docker" "start" "-a" "f9461be16e8b2f17fc242a4a9a82c67ec720281f55b95818fba8e1579b9bb73d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f9461be16e8b2f17fc242a4a9a82c67ec720281f55b95818fba8e1579b9bb73d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9461be16e8b2f17fc242a4a9a82c67ec720281f55b95818fba8e1579b9bb73d", kill_on_drop: false }`
[INFO] [stdout] f9461be16e8b2f17fc242a4a9a82c67ec720281f55b95818fba8e1579b9bb73d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 578b61b52863699a4b0d1a2cc8d07794c56ce3f5a532eb8ffe657d095d18aa46
[INFO] running `Command { std: "docker" "start" "-a" "578b61b52863699a4b0d1a2cc8d07794c56ce3f5a532eb8ffe657d095d18aa46", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_derive v1.0.141
[INFO] [stderr]    Compiling serde v1.0.141
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking clap v3.2.16
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking serde_json v1.0.82
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking sane_csv_json v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/bin.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     input_path: 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: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/bin.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     config_path: String,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/bin.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     out_path: Option<String>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sane_csv_json` (bin "sane_csv_json" test) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/bin.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     input_path: 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: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/bin.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     config_path: String,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/bin.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     out_path: Option<String>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sane_csv_json` (bin "sane_csv_json") due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "578b61b52863699a4b0d1a2cc8d07794c56ce3f5a532eb8ffe657d095d18aa46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "578b61b52863699a4b0d1a2cc8d07794c56ce3f5a532eb8ffe657d095d18aa46", kill_on_drop: false }`
[INFO] [stdout] 578b61b52863699a4b0d1a2cc8d07794c56ce3f5a532eb8ffe657d095d18aa46