[INFO] cloning repository https://github.com/taiyoslime/bf-jit
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/taiyoslime/bf-jit" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftaiyoslime%2Fbf-jit", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftaiyoslime%2Fbf-jit'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9a913dc538dcd9c301b1b7a079fc4692fdb7af88
[INFO] checking taiyoslime/bf-jit 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%2Ftaiyoslime%2Fbf-jit" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/taiyoslime/bf-jit
[INFO] finished tweaking git repo https://github.com/taiyoslime/bf-jit
[INFO] tweaked toml for git repo https://github.com/taiyoslime/bf-jit written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/taiyoslime/bf-jit 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/taiyoslime/bf-jit 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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] ebab3d634a9dced90ec4dcbbe0903c040892a9a8eb7271788ab34d5f20a9f2c6
[INFO] running `Command { std: "docker" "start" "-a" "ebab3d634a9dced90ec4dcbbe0903c040892a9a8eb7271788ab34d5f20a9f2c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ebab3d634a9dced90ec4dcbbe0903c040892a9a8eb7271788ab34d5f20a9f2c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebab3d634a9dced90ec4dcbbe0903c040892a9a8eb7271788ab34d5f20a9f2c6", kill_on_drop: false }`
[INFO] [stdout] ebab3d634a9dced90ec4dcbbe0903c040892a9a8eb7271788ab34d5f20a9f2c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] dbd0171d12c605a20830e7db506119e15bc567c2c6e77ff238664193aa5ff08a
[INFO] running `Command { std: "docker" "start" "-a" "dbd0171d12c605a20830e7db506119e15bc567c2c6e77ff238664193aa5ff08a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.96
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]     Checking os_str_bytes v6.1.0
[INFO] [stderr]    Compiling indexmap v1.8.2
[INFO] [stderr]     Checking clap_lex v0.2.0
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling clap_derive v3.1.18
[INFO] [stderr]     Checking clap v3.1.18
[INFO] [stderr]     Checking bf_jit v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `bytecodes`
[INFO] [stdout]    --> src/jit.rs:295:37
[INFO] [stdout]     |
[INFO] [stdout] 295 |     pub unsafe fn new_from_bytecode(bytecodes: &[Inst]) -> Self {
[INFO] [stdout]     |                                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bytecodes`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `page`
[INFO] [stdout]    --> src/jit.rs:307:14
[INFO] [stdout]     |
[INFO] [stdout] 307 |     fn merge(page: MachineCodePage) {
[INFO] [stdout]     |              ^^^^ help: if this is intentional, prefix it with an underscore: `_page`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `new_from_bytecode` and `merge` are never used
[INFO] [stdout]    --> src/jit.rs:295:19
[INFO] [stdout]     |
[INFO] [stdout] 275 | impl MachineCodePage {
[INFO] [stdout]     | -------------------- associated functions in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 295 |     pub unsafe fn new_from_bytecode(bytecodes: &[Inst]) -> Self {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 307 |     fn merge(page: MachineCodePage) {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `pages` is never read
[INFO] [stdout]    --> src/jit.rs:330:5
[INFO] [stdout]     |
[INFO] [stdout] 329 | pub struct JIT {
[INFO] [stdout]     |            --- field in this struct
[INFO] [stdout] 330 |     pages: BTreeMap<usize, (usize, MachineCodePage)>,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytecodes`
[INFO] [stdout]    --> src/jit.rs:295:37
[INFO] [stdout]     |
[INFO] [stdout] 295 |     pub unsafe fn new_from_bytecode(bytecodes: &[Inst]) -> Self {
[INFO] [stdout]     |                                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bytecodes`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `page`
[INFO] [stdout]    --> src/jit.rs:307:14
[INFO] [stdout]     |
[INFO] [stdout] 307 |     fn merge(page: MachineCodePage) {
[INFO] [stdout]     |              ^^^^ help: if this is intentional, prefix it with an underscore: `_page`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `new_from_bytecode` and `merge` are never used
[INFO] [stdout]    --> src/jit.rs:295:19
[INFO] [stdout]     |
[INFO] [stdout] 275 | impl MachineCodePage {
[INFO] [stdout]     | -------------------- associated functions in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 295 |     pub unsafe fn new_from_bytecode(bytecodes: &[Inst]) -> Self {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 307 |     fn merge(page: MachineCodePage) {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `pages` is never read
[INFO] [stdout]    --> src/jit.rs:330:5
[INFO] [stdout]     |
[INFO] [stdout] 329 | pub struct JIT {
[INFO] [stdout]     |            --- field in this struct
[INFO] [stdout] 330 |     pages: BTreeMap<usize, (usize, MachineCodePage)>,
[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/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     filename: 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 `bf_jit` (bin "bf_jit") due to 1 previous error
[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:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     filename: 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 `bf_jit` (bin "bf_jit" test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "dbd0171d12c605a20830e7db506119e15bc567c2c6e77ff238664193aa5ff08a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbd0171d12c605a20830e7db506119e15bc567c2c6e77ff238664193aa5ff08a", kill_on_drop: false }`
[INFO] [stdout] dbd0171d12c605a20830e7db506119e15bc567c2c6e77ff238664193aa5ff08a
