[INFO] cloning repository https://github.com/Michielnuyts/digital-garden
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Michielnuyts/digital-garden" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMichielnuyts%2Fdigital-garden", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMichielnuyts%2Fdigital-garden'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4d266d437db2ece2ad359bea3cfd906f13778aa2
[INFO] checking Michielnuyts/digital-garden 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%2FMichielnuyts%2Fdigital-garden" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Michielnuyts/digital-garden
[INFO] finished tweaking git repo https://github.com/Michielnuyts/digital-garden
[INFO] tweaked toml for git repo https://github.com/Michielnuyts/digital-garden written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Michielnuyts/digital-garden 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/Michielnuyts/digital-garden 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] [stderr] warning: unused manifest key: lib.src
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] c183bb271b1b09a09bd09b22b3f50ff977724e5ba619f82e1dd16831719cd45b
[INFO] running `Command { std: "docker" "start" "-a" "c183bb271b1b09a09bd09b22b3f50ff977724e5ba619f82e1dd16831719cd45b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c183bb271b1b09a09bd09b22b3f50ff977724e5ba619f82e1dd16831719cd45b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c183bb271b1b09a09bd09b22b3f50ff977724e5ba619f82e1dd16831719cd45b", kill_on_drop: false }`
[INFO] [stdout] c183bb271b1b09a09bd09b22b3f50ff977724e5ba619f82e1dd16831719cd45b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 8aaa3e059c94c6deca53db41c39c43ff62ab7619963ddd222074f5599807d476
[INFO] running `Command { std: "docker" "start" "-a" "8aaa3e059c94c6deca53db41c39c43ff62ab7619963ddd222074f5599807d476", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: lib.src
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]     Checking tracing-core v0.1.28
[INFO] [stderr]    Compiling backtrace v0.3.65
[INFO] [stderr]     Checking gimli v0.26.1
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]     Checking owo-colors v3.4.0
[INFO] [stderr]     Checking eyre v0.6.8
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]     Checking predicates-core v1.0.3
[INFO] [stderr]     Checking deunicode v0.4.3
[INFO] [stderr]     Checking directories v4.0.1
[INFO] [stderr]     Checking directory v0.0.0
[INFO] [stderr]     Checking termtree v0.2.4
[INFO] [stderr]     Checking rprompt v1.0.5
[INFO] [stderr]     Checking difflib v0.4.0
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking predicates-tree v1.0.5
[INFO] [stderr]     Checking slug v0.1.4
[INFO] [stderr]     Checking which v4.2.5
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking edit v0.1.4
[INFO] [stderr]     Checking tracing-subscriber v0.3.11
[INFO] [stderr]     Checking tracing v0.1.35
[INFO] [stderr]     Checking object v0.28.4
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking tracing-error v0.2.0
[INFO] [stderr]     Checking predicates v2.1.1
[INFO] [stderr]     Checking color-spantrace v0.2.0
[INFO] [stderr]     Checking assert_cmd v2.0.4
[INFO] [stderr]     Checking addr2line v0.17.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking color-eyre v0.6.1
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking digital-garden 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:35:3
[INFO] [stdout]    |
[INFO] [stdout] 35 | /         #[structopt(short, long)]
[INFO] [stdout] 36 | |         title: Option<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 `digital-garden` (bin "garden" test) 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:35:3
[INFO] [stdout]    |
[INFO] [stdout] 35 | /         #[structopt(short, long)]
[INFO] [stdout] 36 | |         title: Option<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 `digital-garden` (bin "garden") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "8aaa3e059c94c6deca53db41c39c43ff62ab7619963ddd222074f5599807d476", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8aaa3e059c94c6deca53db41c39c43ff62ab7619963ddd222074f5599807d476", kill_on_drop: false }`
[INFO] [stdout] 8aaa3e059c94c6deca53db41c39c43ff62ab7619963ddd222074f5599807d476
