[INFO] cloning repository https://github.com/neko32/romanconv
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/neko32/romanconv" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fneko32%2Fromanconv", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fneko32%2Fromanconv'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 97a6fe81875bef68da151484a26e85a54d2c2b5b
[INFO] checking neko32/romanconv 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%2Fneko32%2Fromanconv" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/neko32/romanconv
[INFO] finished tweaking git repo https://github.com/neko32/romanconv
[INFO] tweaked toml for git repo https://github.com/neko32/romanconv written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/neko32/romanconv 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/neko32/romanconv 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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 2ce62308d623e35da99e114f0485bda8e545210135de3dc3dfa085a38b726ecc
[INFO] running `Command { std: "docker" "start" "-a" "2ce62308d623e35da99e114f0485bda8e545210135de3dc3dfa085a38b726ecc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ce62308d623e35da99e114f0485bda8e545210135de3dc3dfa085a38b726ecc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ce62308d623e35da99e114f0485bda8e545210135de3dc3dfa085a38b726ecc", kill_on_drop: false }`
[INFO] [stdout] 2ce62308d623e35da99e114f0485bda8e545210135de3dc3dfa085a38b726ecc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 1709598ee617a642acc4189866887915c0ad6f4adcf132b53d664bb0b4aab138
[INFO] running `Command { std: "docker" "start" "-a" "1709598ee617a642acc4189866887915c0ad6f4adcf132b53d664bb0b4aab138", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling indexmap v1.9.0
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling serde_json v1.0.81
[INFO] [stderr]    Compiling anyhow v1.0.57
[INFO] [stderr]     Checking os_str_bytes v6.1.0
[INFO] [stderr]    Compiling curl v0.4.43
[INFO] [stderr]     Checking hashbrown v0.12.1
[INFO] [stderr]     Checking num-integer v0.1.45
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]     Checking clap_lex v0.2.2
[INFO] [stderr]    Compiling libz-sys v1.1.6
[INFO] [stderr]    Compiling openssl-sys v0.9.73
[INFO] [stderr]    Compiling curl-sys v0.4.55+curl-7.83.1
[INFO] [stderr]     Checking regex-syntax v0.6.26
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]     Checking ryu v1.0.10
[INFO] [stderr]    Compiling quote v1.0.19
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking hmap v0.1.0
[INFO] [stderr]     Checking numerals v0.1.4
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking regex v1.5.6
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling clap_derive v3.2.5
[INFO] [stderr]     Checking clap v3.2.5
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking romanconv 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/main.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 71 |     name: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 `romanconv` (bin "romanconv") 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:71:5
[INFO] [stdout]    |
[INFO] [stdout] 71 |     name: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 `romanconv` (bin "romanconv" test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "1709598ee617a642acc4189866887915c0ad6f4adcf132b53d664bb0b4aab138", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1709598ee617a642acc4189866887915c0ad6f4adcf132b53d664bb0b4aab138", kill_on_drop: false }`
[INFO] [stdout] 1709598ee617a642acc4189866887915c0ad6f4adcf132b53d664bb0b4aab138