[INFO] cloning repository https://github.com/p14c31355/dvcdbg
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/p14c31355/dvcdbg" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fp14c31355%2Fdvcdbg", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fp14c31355%2Fdvcdbg'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 422df913bf11714034527cd58d0a73917cfaf82a
[INFO] checking p14c31355/dvcdbg 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%2Fp14c31355%2Fdvcdbg" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/p14c31355/dvcdbg
[INFO] finished tweaking git repo https://github.com/p14c31355/dvcdbg
[INFO] tweaked toml for git repo https://github.com/p14c31355/dvcdbg written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/p14c31355/dvcdbg 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/p14c31355/dvcdbg 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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 8b406bb97b1e4723d80bdb2db34d6cc24c591649ab62bd9207d211d7d8126ef3
[INFO] running `Command { std: "docker" "start" "-a" "8b406bb97b1e4723d80bdb2db34d6cc24c591649ab62bd9207d211d7d8126ef3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b406bb97b1e4723d80bdb2db34d6cc24c591649ab62bd9207d211d7d8126ef3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b406bb97b1e4723d80bdb2db34d6cc24c591649ab62bd9207d211d7d8126ef3", kill_on_drop: false }`
[INFO] [stdout] 8b406bb97b1e4723d80bdb2db34d6cc24c591649ab62bd9207d211d7d8126ef3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 63f242e68faf5929426b29b57ae34c13c0699f64b6f5e7754f5db65adb55e97d
[INFO] running `Command { std: "docker" "start" "-a" "63f242e68faf5929426b29b57ae34c13c0699f64b6f5e7754f5db65adb55e97d", kill_on_drop: false }`
[INFO] [stderr]    Compiling heapless v0.9.1
[INFO] [stderr]     Checking hash32 v0.3.1
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking embedded-hal v1.0.0
[INFO] [stderr]     Checking embedded-io v0.6.1
[INFO] [stderr]     Checking dvcdbg v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `dvcdbg` (lib test) due to 2 previous errors
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/compat/serial_compat.rs:103:75
[INFO] [stdout]     |
[INFO] [stdout] 103 |               fn write(&mut self, buf: &[u8]) -> Result<usize, Self::Error> {
[INFO] [stdout]     |  ___________________________________________________________________________^
[INFO] [stdout] 104 | |                 Ok(buf.len())
[INFO] [stdout] 105 | |             }
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/compat/serial_compat.rs:104:17
[INFO] [stdout]     |
[INFO] [stdout] 104 |                 Ok(buf.len())
[INFO] [stdout]     |                 ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "63f242e68faf5929426b29b57ae34c13c0699f64b6f5e7754f5db65adb55e97d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63f242e68faf5929426b29b57ae34c13c0699f64b6f5e7754f5db65adb55e97d", kill_on_drop: false }`
[INFO] [stdout] 63f242e68faf5929426b29b57ae34c13c0699f64b6f5e7754f5db65adb55e97d
