[INFO] cloning repository https://github.com/qchateau/least
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/qchateau/least" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqchateau%2Fleast", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqchateau%2Fleast'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7e166a98273345928e123a2850054d2522ffd2ca
[INFO] checking qchateau/least 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%2Fqchateau%2Fleast" "/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/qchateau/least
[INFO] finished tweaking git repo https://github.com/qchateau/least
[INFO] tweaked toml for git repo https://github.com/qchateau/least written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/qchateau/least 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/qchateau/least 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-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] 7c570ecc366c878540ed8b709e2f56fb9c69d912e0c0ccdec752f9b1bd52f04d
[INFO] running `Command { std: "docker" "start" "-a" "7c570ecc366c878540ed8b709e2f56fb9c69d912e0c0ccdec752f9b1bd52f04d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c570ecc366c878540ed8b709e2f56fb9c69d912e0c0ccdec752f9b1bd52f04d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c570ecc366c878540ed8b709e2f56fb9c69d912e0c0ccdec752f9b1bd52f04d", kill_on_drop: false }`
[INFO] [stdout] 7c570ecc366c878540ed8b709e2f56fb9c69d912e0c0ccdec752f9b1bd52f04d
[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] 47254d44ce7900884ff87dd023fb371a5677960995536c6d8cbece6c48e5e840
[INFO] running `Command { std: "docker" "start" "-a" "47254d44ce7900884ff87dd023fb371a5677960995536c6d8cbece6c48e5e840", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.117
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]     Checking pin-project-lite v0.2.8
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]    Compiling bzip2-sys v0.1.11+1.0.8
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking futures-lite v1.12.0
[INFO] [stderr]    Compiling async-trait v0.1.52
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking parking_lot_core v0.8.5
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking signal-hook v0.3.13
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking polling v2.2.0
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]     Checking bzip2 v0.4.3
[INFO] [stderr]     Checking async-io v1.6.0
[INFO] [stderr]     Checking memmap2 v0.5.3
[INFO] [stderr]     Checking signal-hook-mio v0.2.1
[INFO] [stderr]     Checking crossterm v0.22.1
[INFO] [stderr]     Checking lexical v5.2.2
[INFO] [stderr]     Checking human_bytes v0.3.0
[INFO] [stderr]     Checking signal-hook-async-std v0.2.2
[INFO] [stderr]     Checking tui v0.17.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling clap_derive v3.0.14
[INFO] [stderr]     Checking tokio v1.16.1
[INFO] [stderr]     Checking clap v3.0.14
[INFO] [stderr]     Checking futures-executor v0.3.21
[INFO] [stderr]     Checking futures v0.3.21
[INFO] [stderr]     Checking bless v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `path` is never read
[INFO] [stdout]   --> src/file_buffer/raw.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct RawFileBuffer {
[INFO] [stdout]    |            ------------- field in this struct
[INFO] [stdout] 19 |     range: Range<u64>,
[INFO] [stdout] 20 |     path: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `RawFileBuffer` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `path` is never read
[INFO] [stdout]   --> src/file_buffer/raw.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct RawFileBuffer {
[INFO] [stdout]    |            ------------- field in this struct
[INFO] [stdout] 19 |     range: Range<u64>,
[INFO] [stdout] 20 |     path: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `RawFileBuffer` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | /     /// Path to the file to read
[INFO] [stdout] 19 | |     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: std::result::Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | /     /// Path to the file to read
[INFO] [stdout] 19 | |     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] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/file_view/file_view.rs:343:26
[INFO] [stdout]     |
[INFO] [stdout] 343 |     fn current_view_utf8(&self) -> Cow<str> {
[INFO] [stdout]     |                          ^^^^^     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 343 |     fn current_view_utf8(&self) -> Cow<'_, str> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/file_view/file_view.rs:343:26
[INFO] [stdout]     |
[INFO] [stdout] 343 |     fn current_view_utf8(&self) -> Cow<str> {
[INFO] [stdout]     |                          ^^^^^     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 343 |     fn current_view_utf8(&self) -> Cow<'_, str> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]  --> src/utils/text.rs:7:26
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn decode_utf8(data: &[u8]) -> Cow<str> {
[INFO] [stdout]   |                          ^^^^^     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]   |                          |
[INFO] [stdout]   |                          the lifetime is elided here
[INFO] [stdout]   |
[INFO] [stdout]   = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn decode_utf8(data: &[u8]) -> Cow<'_, str> {
[INFO] [stdout]   |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]  --> src/utils/text.rs:7:26
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn decode_utf8(data: &[u8]) -> Cow<str> {
[INFO] [stdout]   |                          ^^^^^     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]   |                          |
[INFO] [stdout]   |                          the lifetime is elided here
[INFO] [stdout]   |
[INFO] [stdout]   = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn decode_utf8(data: &[u8]) -> Cow<'_, str> {
[INFO] [stdout]   |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bless` (bin "bless") due to 1 previous error; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `bless` (bin "bless" test) due to 1 previous error; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "47254d44ce7900884ff87dd023fb371a5677960995536c6d8cbece6c48e5e840", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47254d44ce7900884ff87dd023fb371a5677960995536c6d8cbece6c48e5e840", kill_on_drop: false }`
[INFO] [stdout] 47254d44ce7900884ff87dd023fb371a5677960995536c6d8cbece6c48e5e840
