[INFO] cloning repository https://github.com/harry-anderson/file-analyzer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/harry-anderson/file-analyzer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fharry-anderson%2Ffile-analyzer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fharry-anderson%2Ffile-analyzer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5a9ad3b6b3f7c0dcb0fb1cb1e2f467bd1f9af162
[INFO] checking harry-anderson/file-analyzer 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%2Fharry-anderson%2Ffile-analyzer" "/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/harry-anderson/file-analyzer
[INFO] finished tweaking git repo https://github.com/harry-anderson/file-analyzer
[INFO] tweaked toml for git repo https://github.com/harry-anderson/file-analyzer written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/harry-anderson/file-analyzer 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/harry-anderson/file-analyzer 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] 1d9346080871acb3356ccda08f3ff014339a061170923d74a2bd963c2f652e2e
[INFO] running `Command { std: "docker" "start" "-a" "1d9346080871acb3356ccda08f3ff014339a061170923d74a2bd963c2f652e2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1d9346080871acb3356ccda08f3ff014339a061170923d74a2bd963c2f652e2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d9346080871acb3356ccda08f3ff014339a061170923d74a2bd963c2f652e2e", kill_on_drop: false }`
[INFO] [stdout] 1d9346080871acb3356ccda08f3ff014339a061170923d74a2bd963c2f652e2e
[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] 58dc4f5c26c651336d530b4041c0508ec05b07169331f71679f2114154ef3362
[INFO] running `Command { std: "docker" "start" "-a" "58dc4f5c26c651336d530b4041c0508ec05b07169331f71679f2114154ef3362", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling pkg-config v0.3.30
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]    Compiling cc v1.0.90
[INFO] [stderr]     Checking pin-project-lite v0.2.13
[INFO] [stderr]     Checking bytes v1.5.0
[INFO] [stderr]     Checking smallvec v1.13.1
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]     Checking itoa v1.0.10
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]    Compiling openssl v0.10.64
[INFO] [stderr]     Checking http v0.2.12
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking equivalent v1.0.1
[INFO] [stderr]     Checking hashbrown v0.14.3
[INFO] [stderr]     Checking bitflags v2.4.2
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking socket2 v0.5.6
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking mio v0.8.11
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]     Checking futures-task v0.3.30
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking openssl-probe v0.1.5
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]    Compiling openssl-sys v0.9.101
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking indexmap v2.2.5
[INFO] [stderr]     Checking http-body v0.4.6
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]     Checking unicode-bidi v0.3.15
[INFO] [stderr]    Compiling unicode-segmentation v1.11.0
[INFO] [stderr]     Checking tower-service v0.3.2
[INFO] [stderr]     Checking unicode-width v0.1.11
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]    Compiling anyhow v1.0.81
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking base64 v0.21.7
[INFO] [stderr]     Checking unicode-normalization v0.1.23
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking ryu v1.0.17
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking encoding_rs v0.8.33
[INFO] [stderr]     Checking sync_wrapper v0.1.2
[INFO] [stderr]     Checking rustls-pemfile v1.0.4
[INFO] [stderr]     Checking ipnet v2.9.0
[INFO] [stderr]     Checking idna v0.5.0
[INFO] [stderr]     Checking url v2.5.0
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking tokio v1.36.0
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking tokio-util v0.7.10
[INFO] [stderr]     Checking tokio-native-tls v0.3.1
[INFO] [stderr]     Checking h2 v0.3.24
[INFO] [stderr]     Checking hyper v0.14.28
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.25
[INFO] [stderr]     Checking solution v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> bin/task5.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | /     #[structopt(long)]
[INFO] [stdout] 11 | |     dir: 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<String, Infallible>
[INFO] [stdout]   --> bin/task5.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | /     #[structopt(long)]
[INFO] [stdout] 17 | |     word: String,
[INFO] [stdout]    | |________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `solution` (bin "task5") due to 2 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<String, Infallible>
[INFO] [stdout]   --> bin/downloader.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | /     #[structopt(long, short)]
[INFO] [stdout] 13 | |     out: 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<String, Infallible>
[INFO] [stdout]   --> bin/task4.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | /     #[structopt(long)]
[INFO] [stdout] 14 | |     dir: 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<String, Infallible>
[INFO] [stdout]   --> bin/task4.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | /     #[structopt(long)]
[INFO] [stdout] 14 | |     dir: 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 `solution` (bin "downloader") due to 1 previous error
[INFO] [stderr] error: could not compile `solution` (bin "task4") due to 1 previous error
[INFO] [stderr] error: could not compile `solution` (bin "task4" test) due to 1 previous error
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> bin/task5.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | /     #[structopt(long)]
[INFO] [stdout] 11 | |     dir: 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<String, Infallible>
[INFO] [stdout]   --> bin/task5.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | /     #[structopt(long)]
[INFO] [stdout] 17 | |     word: String,
[INFO] [stdout]    | |________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> bin/downloader.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | /     #[structopt(long, short)]
[INFO] [stdout] 13 | |     out: 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 `solution` (bin "task5" test) due to 2 previous errors
[INFO] [stderr] error: could not compile `solution` (bin "downloader" test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "58dc4f5c26c651336d530b4041c0508ec05b07169331f71679f2114154ef3362", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58dc4f5c26c651336d530b4041c0508ec05b07169331f71679f2114154ef3362", kill_on_drop: false }`
[INFO] [stdout] 58dc4f5c26c651336d530b4041c0508ec05b07169331f71679f2114154ef3362