[INFO] cloning repository https://github.com/karamaru-alpha/wasm-compiler-in-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/karamaru-alpha/wasm-compiler-in-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkaramaru-alpha%2Fwasm-compiler-in-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkaramaru-alpha%2Fwasm-compiler-in-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d78b71c22e14d469bd3444a707c7ccbaaf6a4ef7
[INFO] checking karamaru-alpha/wasm-compiler-in-rust 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%2Fkaramaru-alpha%2Fwasm-compiler-in-rust" "/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/karamaru-alpha/wasm-compiler-in-rust
[INFO] finished tweaking git repo https://github.com/karamaru-alpha/wasm-compiler-in-rust
[INFO] tweaked toml for git repo https://github.com/karamaru-alpha/wasm-compiler-in-rust written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/karamaru-alpha/wasm-compiler-in-rust 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/karamaru-alpha/wasm-compiler-in-rust 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] f6e4bffb9845b2803773b58f504cfcaed1f72adf75fe13ec1b5c1cb908bfad0e
[INFO] running `Command { std: "docker" "start" "-a" "f6e4bffb9845b2803773b58f504cfcaed1f72adf75fe13ec1b5c1cb908bfad0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f6e4bffb9845b2803773b58f504cfcaed1f72adf75fe13ec1b5c1cb908bfad0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6e4bffb9845b2803773b58f504cfcaed1f72adf75fe13ec1b5c1cb908bfad0e", kill_on_drop: false }`
[INFO] [stdout] f6e4bffb9845b2803773b58f504cfcaed1f72adf75fe13ec1b5c1cb908bfad0e
[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] cfe410f078df1949316d85ef9e7256ed14aa6a919e7813bcea20e99c59f71a60
[INFO] running `Command { std: "docker" "start" "-a" "cfe410f078df1949316d85ef9e7256ed14aa6a919e7813bcea20e99c59f71a60", kill_on_drop: false }`
[INFO] [stderr]     Checking wasm-compiler-in-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/parser.rs:51:58
[INFO] [stdout]    |
[INFO] [stdout] 51 |             Token::Ident(val) => Expression::Ident(Ident(val.parse().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<String, Infallible>
[INFO] [stdout]   --> src/parser.rs:66:40
[INFO] [stdout]    |
[INFO] [stdout] 66 |             Token::Ident(val) => Ident(val.parse().unwrap()),
[INFO] [stdout]    |                                        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `wasm-compiler-in-rust` (bin "wasm-compiler-in-rust" test) 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]   --> src/parser.rs:51:58
[INFO] [stdout]    |
[INFO] [stdout] 51 |             Token::Ident(val) => Expression::Ident(Ident(val.parse().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<String, Infallible>
[INFO] [stdout]   --> src/parser.rs:66:40
[INFO] [stdout]    |
[INFO] [stdout] 66 |             Token::Ident(val) => Ident(val.parse().unwrap()),
[INFO] [stdout]    |                                        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `wasm-compiler-in-rust` (bin "wasm-compiler-in-rust") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "cfe410f078df1949316d85ef9e7256ed14aa6a919e7813bcea20e99c59f71a60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfe410f078df1949316d85ef9e7256ed14aa6a919e7813bcea20e99c59f71a60", kill_on_drop: false }`
[INFO] [stdout] cfe410f078df1949316d85ef9e7256ed14aa6a919e7813bcea20e99c59f71a60