[INFO] cloning repository https://github.com/ChrisDavison/nf
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ChrisDavison/nf" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChrisDavison%2Fnf", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChrisDavison%2Fnf'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b4a709b2a0a70296b772d35f8e35f408f81ad8b0
[INFO] checking ChrisDavison/nf 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%2FChrisDavison%2Fnf" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ChrisDavison/nf
[INFO] finished tweaking git repo https://github.com/ChrisDavison/nf
[INFO] tweaked toml for git repo https://github.com/ChrisDavison/nf written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ChrisDavison/nf 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/ChrisDavison/nf 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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] e85babea066a545a3ce8ca386aee1358ccf88a6cc066ad1efb7a6509c308b0e9
[INFO] running `Command { std: "docker" "start" "-a" "e85babea066a545a3ce8ca386aee1358ccf88a6cc066ad1efb7a6509c308b0e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e85babea066a545a3ce8ca386aee1358ccf88a6cc066ad1efb7a6509c308b0e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e85babea066a545a3ce8ca386aee1358ccf88a6cc066ad1efb7a6509c308b0e9", kill_on_drop: false }`
[INFO] [stdout] e85babea066a545a3ce8ca386aee1358ccf88a6cc066ad1efb7a6509c308b0e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 5f5785dbfeb2af643bee5e2eb8b3b469124617165af805ca9d5278c34e629940
[INFO] running `Command { std: "docker" "start" "-a" "5f5785dbfeb2af643bee5e2eb8b3b469124617165af805ca9d5278c34e629940", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]     Checking regex-syntax v0.7.4
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]     Checking aho-corasick v1.0.2
[INFO] [stderr]     Checking either v1.8.1
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rayon-core v1.11.0
[INFO] [stderr]     Checking rayon v1.7.0
[INFO] [stderr]     Checking regex-automata v0.3.2
[INFO] [stderr]    Compiling clap_derive v3.1.4
[INFO] [stderr]     Checking regex v1.9.1
[INFO] [stderr]     Checking clap v3.1.6
[INFO] [stderr]     Checking tagsearch v0.37.0
[INFO] [stderr]     Checking nf v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `nf` (bin "nf" test) due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: field `all_words` is never read
[INFO] [stdout]   --> src/notefilter.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub struct NoteFilter {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 52 |     pub all_words: HashSet<String>,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[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: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | /     /// Words to search for
[INFO] [stdout] 13 | |     words: Vec<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: field `all_words` is never read
[INFO] [stdout]   --> src/notefilter.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub struct NoteFilter {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 52 |     pub all_words: HashSet<String>,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[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: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | /     /// Words to search for
[INFO] [stdout] 13 | |     words: Vec<String>,
[INFO] [stdout]    | |______________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `nf` (bin "nf") due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "5f5785dbfeb2af643bee5e2eb8b3b469124617165af805ca9d5278c34e629940", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f5785dbfeb2af643bee5e2eb8b3b469124617165af805ca9d5278c34e629940", kill_on_drop: false }`
[INFO] [stdout] 5f5785dbfeb2af643bee5e2eb8b3b469124617165af805ca9d5278c34e629940