[INFO] cloning repository https://github.com/RebelAndroid/riscv-disassembler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RebelAndroid/riscv-disassembler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRebelAndroid%2Friscv-disassembler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRebelAndroid%2Friscv-disassembler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f9e924b9840a5b715c2478888b2d15202493dac7
[INFO] checking RebelAndroid/riscv-disassembler 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%2FRebelAndroid%2Friscv-disassembler" "/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/RebelAndroid/riscv-disassembler
[INFO] finished tweaking git repo https://github.com/RebelAndroid/riscv-disassembler
[INFO] tweaked toml for git repo https://github.com/RebelAndroid/riscv-disassembler written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/RebelAndroid/riscv-disassembler 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/RebelAndroid/riscv-disassembler 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] 0d54577819a2e3474d2b6e7ba567c33bf81bae44003ee56c9ea1605b4a2c940d
[INFO] running `Command { std: "docker" "start" "-a" "0d54577819a2e3474d2b6e7ba567c33bf81bae44003ee56c9ea1605b4a2c940d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0d54577819a2e3474d2b6e7ba567c33bf81bae44003ee56c9ea1605b4a2c940d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d54577819a2e3474d2b6e7ba567c33bf81bae44003ee56c9ea1605b4a2c940d", kill_on_drop: false }`
[INFO] [stdout] 0d54577819a2e3474d2b6e7ba567c33bf81bae44003ee56c9ea1605b4a2c940d
[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] f1d792d7fa8ef030010cec42762bb1127d36082dbf0da4a39618f1479441cb97
[INFO] running `Command { std: "docker" "start" "-a" "f1d792d7fa8ef030010cec42762bb1127d36082dbf0da4a39618f1479441cb97", kill_on_drop: false }`
[INFO] [stderr]    Compiling litrs v0.4.1
[INFO] [stderr]    Compiling riscv-codec-proc-macros v0.3.0 (/opt/rustwide/workdir/proc-macros)
[INFO] [stderr]     Checking riscv-codec v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<CIRegister, Infallible>
[INFO] [stdout]    --> src/cinstruction.rs:221:20
[INFO] [stdout]     |
[INFO] [stdout] 221 |         let crs2 = CIRegister::try_from((instruction >> 2) & 0b111).unwrap();
[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<CIRegister, Infallible>
[INFO] [stdout]    --> src/cinstruction.rs:221:20
[INFO] [stdout]     |
[INFO] [stdout] 221 |         let crs2 = CIRegister::try_from((instruction >> 2) & 0b111).unwrap();
[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 `riscv-codec` (lib test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `riscv-codec` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "f1d792d7fa8ef030010cec42762bb1127d36082dbf0da4a39618f1479441cb97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1d792d7fa8ef030010cec42762bb1127d36082dbf0da4a39618f1479441cb97", kill_on_drop: false }`
[INFO] [stdout] f1d792d7fa8ef030010cec42762bb1127d36082dbf0da4a39618f1479441cb97
