[INFO] cloning repository https://github.com/ftilde/maq
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ftilde/maq" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fftilde%2Fmaq", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fftilde%2Fmaq'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 181e4a51f696afbdff3bdcf7b6ba77011362d279
[INFO] checking ftilde/maq 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%2Fftilde%2Fmaq" "/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/ftilde/maq
[INFO] finished tweaking git repo https://github.com/ftilde/maq
[INFO] tweaked toml for git repo https://github.com/ftilde/maq written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ftilde/maq 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/ftilde/maq 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] 2bab814dd7058252488dd2ba224cf1d5313a210b556702d2a2d87850863d4a4b
[INFO] running `Command { std: "docker" "start" "-a" "2bab814dd7058252488dd2ba224cf1d5313a210b556702d2a2d87850863d4a4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2bab814dd7058252488dd2ba224cf1d5313a210b556702d2a2d87850863d4a4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bab814dd7058252488dd2ba224cf1d5313a210b556702d2a2d87850863d4a4b", kill_on_drop: false }`
[INFO] [stdout] 2bab814dd7058252488dd2ba224cf1d5313a210b556702d2a2d87850863d4a4b
[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] e9a04f1c8f7cd4412b1fcc8b17529ce32cd4a327c3ffb11825d84cf13ba05c3c
[INFO] running `Command { std: "docker" "start" "-a" "e9a04f1c8f7cd4412b1fcc8b17529ce32cd4a327c3ffb11825d84cf13ba05c3c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]    Compiling encoding_rs v0.8.24
[INFO] [stderr]     Checking smallvec v1.4.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling io-uring v0.3.5
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]     Checking quoted_printable v0.4.2
[INFO] [stderr]     Checking fuzzy-matcher v0.3.7
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking charset v0.1.2
[INFO] [stderr]     Checking mailparse v0.13.0
[INFO] [stderr]    Compiling structopt-derive v0.4.12
[INFO] [stderr]     Checking structopt v0.3.19
[INFO] [stderr]     Checking maq v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | /     #[structopt(
[INFO] [stdout] 15 | |         short = "s",
[INFO] [stdout] 16 | |         long = "search",
[INFO] [stdout] 17 | |         help = "Search string",
[INFO] [stdout] 18 | |         default_value = ""
[INFO] [stdout] 19 | |     )]
[INFO] [stdout] 20 | |     search_string: 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 `maq` (bin "maq") 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<String, Infallible>
[INFO] [stdout]   --> src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | /     #[structopt(
[INFO] [stdout] 15 | |         short = "s",
[INFO] [stdout] 16 | |         long = "search",
[INFO] [stdout] 17 | |         help = "Search string",
[INFO] [stdout] 18 | |         default_value = ""
[INFO] [stdout] 19 | |     )]
[INFO] [stdout] 20 | |     search_string: 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 `maq` (bin "maq" test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "e9a04f1c8f7cd4412b1fcc8b17529ce32cd4a327c3ffb11825d84cf13ba05c3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9a04f1c8f7cd4412b1fcc8b17529ce32cd4a327c3ffb11825d84cf13ba05c3c", kill_on_drop: false }`
[INFO] [stdout] e9a04f1c8f7cd4412b1fcc8b17529ce32cd4a327c3ffb11825d84cf13ba05c3c
