[INFO] cloning repository https://github.com/mikelma/pgo_co
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mikelma/pgo_co" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmikelma%2Fpgo_co", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmikelma%2Fpgo_co'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5095632ce1f52225a9ba627a39f8137efa509716
[INFO] checking mikelma/pgo_co 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%2Fmikelma%2Fpgo_co" "/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/mikelma/pgo_co
[INFO] finished tweaking git repo https://github.com/mikelma/pgo_co
[INFO] tweaked toml for git repo https://github.com/mikelma/pgo_co written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mikelma/pgo_co 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Updating git repository `https://github.com/TheDan64/inkwell`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 63 packages to latest compatible versions
[INFO] [stderr]       Adding clap v3.2.25 (available: v4.5.51)
[INFO] [stderr]       Adding llvm-sys v120.3.2 (available: v211.0.0)
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[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]     Blocking waiting for file lock on package cache
[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] d118270aae4517754b742ad3f868d85f46ad04d5ccdfb65e0ddb596516ba2b5e
[INFO] running `Command { std: "docker" "start" "-a" "d118270aae4517754b742ad3f868d85f46ad04d5ccdfb65e0ddb596516ba2b5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d118270aae4517754b742ad3f868d85f46ad04d5ccdfb65e0ddb596516ba2b5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d118270aae4517754b742ad3f868d85f46ad04d5ccdfb65e0ddb596516ba2b5e", kill_on_drop: false }`
[INFO] [stdout] d118270aae4517754b742ad3f868d85f46ad04d5ccdfb65e0ddb596516ba2b5e
[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] 420b2e4de9ec044006a79ab7cdc17b7916d6a58b7ee154d791366b60d1d8cb54
[INFO] running `Command { std: "docker" "start" "-a" "420b2e4de9ec044006a79ab7cdc17b7916d6a58b7ee154d791366b60d1d8cb54", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex-syntax v0.8.8
[INFO] [stderr]    Compiling zerocopy v0.8.27
[INFO] [stderr]     Checking cfg-if v1.0.4
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling pest v2.8.3
[INFO] [stderr]    Compiling thiserror v2.0.17
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]    Compiling inkwell v0.7.0 (https://github.com/TheDan64/inkwell?branch=master#37ef0f58)
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking serde_json v1.0.145
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling semver-parser v0.10.3
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling thiserror-impl v2.0.17
[INFO] [stderr]    Compiling inkwell_internals v0.12.0 (https://github.com/TheDan64/inkwell?branch=master#37ef0f58)
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling regex v1.12.2
[INFO] [stderr]    Compiling llvm-sys v120.3.2
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking pgo_co 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/inspector.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     inspect_func: Option<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/inspector.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     input_bc_path: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pgo_co` (bin "inspector") 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<std::string::String, Infallible>
[INFO] [stdout]   --> src/bin/optimizer.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     inst_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/optimizer.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     input_bc_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/optimizer.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     out_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/inspector.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     inspect_func: Option<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/inspector.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     input_bc_path: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pgo_co` (bin "inspector" test) due to 2 previous errors
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/bin/generator.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     input_bc_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/generator.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     out_path: Option<String>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pgo_co` (bin "optimizer") due to 3 previous errors
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/bin/generator.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     input_bc_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/generator.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     out_path: Option<String>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pgo_co` (bin "generator") due to 2 previous errors
[INFO] [stderr] error: could not compile `pgo_co` (bin "generator" test) due to 2 previous errors
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/bin/optimizer.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     inst_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/optimizer.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     input_bc_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/optimizer.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     out_path: String,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pgo_co` (bin "optimizer" test) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "420b2e4de9ec044006a79ab7cdc17b7916d6a58b7ee154d791366b60d1d8cb54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "420b2e4de9ec044006a79ab7cdc17b7916d6a58b7ee154d791366b60d1d8cb54", kill_on_drop: false }`
[INFO] [stdout] 420b2e4de9ec044006a79ab7cdc17b7916d6a58b7ee154d791366b60d1d8cb54