[INFO] cloning repository https://github.com/joeky888/ufc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/joeky888/ufc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoeky888%2Fufc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoeky888%2Fufc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 09c41648de46eca0cfda9d7bab5c1f086c2814b5
[INFO] checking joeky888/ufc 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%2Fjoeky888%2Fufc" "/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/joeky888/ufc
[INFO] finished tweaking git repo https://github.com/joeky888/ufc
[INFO] tweaked toml for git repo https://github.com/joeky888/ufc written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/joeky888/ufc 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/joeky888/ufc 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-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] 6fd003e40608525d080ab0bc7b033d417f4219fdd0800bd54b865d387cbb8e86
[INFO] running `Command { std: "docker" "start" "-a" "6fd003e40608525d080ab0bc7b033d417f4219fdd0800bd54b865d387cbb8e86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6fd003e40608525d080ab0bc7b033d417f4219fdd0800bd54b865d387cbb8e86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fd003e40608525d080ab0bc7b033d417f4219fdd0800bd54b865d387cbb8e86", kill_on_drop: false }`
[INFO] [stdout] 6fd003e40608525d080ab0bc7b033d417f4219fdd0800bd54b865d387cbb8e86
[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] dbacb74a7499298c091f4d947bb5731a200dd8adbf5a7e2b47c15f2a2b140d03
[INFO] running `Command { std: "docker" "start" "-a" "dbacb74a7499298c091f4d947bb5731a200dd8adbf5a7e2b47c15f2a2b140d03", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling syn v1.0.71
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking textwrap v0.13.4
[INFO] [stderr]     Checking os_str_bytes v3.0.0
[INFO] [stderr]     Checking regex-syntax v0.6.23
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking bit-set v0.5.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]     Checking regex v1.4.6
[INFO] [stderr]     Checking fancy-regex v0.5.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.2 (https://github.com/clap-rs/clap?rev=92f744c#92f744cc)
[INFO] [stderr]     Checking ctrlc v3.1.9
[INFO] [stderr]     Checking clap v3.0.0-beta.2 (https://github.com/clap-rs/clap?rev=92f744c#92f744cc)
[INFO] [stderr]     Checking clap_generate v3.0.0-beta.2 (https://github.com/clap-rs/clap?rev=92f744c#92f744cc)
[INFO] [stderr]     Checking ufc v0.8.5 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/cli/cli.rs:474:31
[INFO] [stdout]     |
[INFO] [stdout] 474 |                         text: String::from_str(&str[start..end]).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/cli/cli.rs:490:39
[INFO] [stdout]     |
[INFO] [stdout] 490 | ...                   text: String::from_str(&str[last_start..full_match_end]).unwrap(),
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/cli/cli.rs:518:35
[INFO] [stdout]     |
[INFO] [stdout] 518 | ...                   text: String::from_str(&str[last_start..start]).unwrap(),
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/cli/cli.rs:530:35
[INFO] [stdout]     |
[INFO] [stdout] 530 | ...                   text: String::from_str(&str[start..end]).unwrap(),
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/cli/cli.rs:544:31
[INFO] [stdout]     |
[INFO] [stdout] 544 |                         text: String::from_str(&str[last_start..]).unwrap(),
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ufc` (bin "ufc" test) due to 5 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/cli/cli.rs:474:31
[INFO] [stdout]     |
[INFO] [stdout] 474 |                         text: String::from_str(&str[start..end]).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/cli/cli.rs:490:39
[INFO] [stdout]     |
[INFO] [stdout] 490 | ...                   text: String::from_str(&str[last_start..full_match_end]).unwrap(),
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/cli/cli.rs:518:35
[INFO] [stdout]     |
[INFO] [stdout] 518 | ...                   text: String::from_str(&str[last_start..start]).unwrap(),
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/cli/cli.rs:530:35
[INFO] [stdout]     |
[INFO] [stdout] 530 | ...                   text: String::from_str(&str[start..end]).unwrap(),
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/cli/cli.rs:544:31
[INFO] [stdout]     |
[INFO] [stdout] 544 |                         text: String::from_str(&str[last_start..]).unwrap(),
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ufc` (bin "ufc") due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "dbacb74a7499298c091f4d947bb5731a200dd8adbf5a7e2b47c15f2a2b140d03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbacb74a7499298c091f4d947bb5731a200dd8adbf5a7e2b47c15f2a2b140d03", kill_on_drop: false }`
[INFO] [stdout] dbacb74a7499298c091f4d947bb5731a200dd8adbf5a7e2b47c15f2a2b140d03