[INFO] cloning repository https://github.com/speck0413/xls-exporter-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/speck0413/xls-exporter-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspeck0413%2Fxls-exporter-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspeck0413%2Fxls-exporter-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 96cd08ec0a28d4b25daa041e3b988331b461fe58
[INFO] checking speck0413/xls-exporter-rs 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%2Fspeck0413%2Fxls-exporter-rs" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/speck0413/xls-exporter-rs
[INFO] finished tweaking git repo https://github.com/speck0413/xls-exporter-rs
[INFO] tweaked toml for git repo https://github.com/speck0413/xls-exporter-rs written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/speck0413/xls-exporter-rs 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/speck0413/xls-exporter-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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: target.windows.rustflags
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] b840bc485e2a277c3112d4fe295c7828c90a57170a26281a2ebb4517ef951b80
[INFO] running `Command { std: "docker" "start" "-a" "b840bc485e2a277c3112d4fe295c7828c90a57170a26281a2ebb4517ef951b80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b840bc485e2a277c3112d4fe295c7828c90a57170a26281a2ebb4517ef951b80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b840bc485e2a277c3112d4fe295c7828c90a57170a26281a2ebb4517ef951b80", kill_on_drop: false }`
[INFO] [stdout] b840bc485e2a277c3112d4fe295c7828c90a57170a26281a2ebb4517ef951b80
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] bc995a0b441d17ebeb460e6b41720fa0ca5e0c5c7678ef3df572e1f68b8d189f
[INFO] running `Command { std: "docker" "start" "-a" "bc995a0b441d17ebeb460e6b41720fa0ca5e0c5c7678ef3df572e1f68b8d189f", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: target.windows.rustflags
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling encoding_rs v0.8.31
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]    Compiling serde v1.0.143
[INFO] [stderr]     Checking os_str_bytes v6.3.0
[INFO] [stderr]     Checking once_cell v1.13.1
[INFO] [stderr]     Checking flate2 v1.0.24
[INFO] [stderr]     Checking indexmap v1.9.1
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking codepage v0.1.1
[INFO] [stderr]     Checking quick-xml v0.19.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.32
[INFO] [stderr]    Compiling clap_derive v3.2.17
[INFO] [stderr]     Checking thiserror v1.0.32
[INFO] [stderr]     Checking zip v0.5.13
[INFO] [stderr]     Checking calamine v0.18.0
[INFO] [stderr]     Checking clap v3.2.17
[INFO] [stderr]     Checking xls-exporter-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `borrow::BorrowMut`
[INFO] [stdout]  --> src/main.rs:2:33
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{path::Path, fs::File, borrow::BorrowMut};
[INFO] [stdout]   |                                 ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `borrow::BorrowMut`
[INFO] [stdout]  --> src/main.rs:2:33
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{path::Path, fs::File, borrow::BorrowMut};
[INFO] [stdout]   |                                 ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `col` is never read
[INFO] [stdout]   --> src/main.rs:47:23
[INFO] [stdout]    |
[INFO] [stdout] 47 |         let mut col = 0;
[INFO] [stdout]    |                       ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     sheet_delimiter: 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/main.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     sheet_extension: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `col` is never read
[INFO] [stdout]   --> src/main.rs:47:23
[INFO] [stdout]    |
[INFO] [stdout] 47 |         let mut col = 0;
[INFO] [stdout]    |                       ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `xls-exporter-rs` (bin "xls-exporter-rs") due to 2 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: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     sheet_delimiter: 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/main.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     sheet_extension: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `xls-exporter-rs` (bin "xls-exporter-rs" test) due to 2 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "bc995a0b441d17ebeb460e6b41720fa0ca5e0c5c7678ef3df572e1f68b8d189f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc995a0b441d17ebeb460e6b41720fa0ca5e0c5c7678ef3df572e1f68b8d189f", kill_on_drop: false }`
[INFO] [stdout] bc995a0b441d17ebeb460e6b41720fa0ca5e0c5c7678ef3df572e1f68b8d189f