[INFO] cloning repository https://github.com/mwlon/quantile-compression
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mwlon/quantile-compression" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmwlon%2Fquantile-compression", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmwlon%2Fquantile-compression'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] af5fb98aa2360de6f2309721d5207b89b64df10e
[INFO] checking mwlon/quantile-compression 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%2Fmwlon%2Fquantile-compression" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-1-tc2/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/mwlon/quantile-compression
[INFO] finished tweaking git repo https://github.com/mwlon/quantile-compression
[INFO] tweaked toml for git repo https://github.com/mwlon/quantile-compression written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mwlon/quantile-compression 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/mwlon/quantile-compression 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-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] dec8f48ce0f05fd3f3bc04d0b2d4e18a657973c19dddb89e55a7ce63a82c50fa
[INFO] running `Command { std: "docker" "start" "-a" "dec8f48ce0f05fd3f3bc04d0b2d4e18a657973c19dddb89e55a7ce63a82c50fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dec8f48ce0f05fd3f3bc04d0b2d4e18a657973c19dddb89e55a7ce63a82c50fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dec8f48ce0f05fd3f3bc04d0b2d4e18a657973c19dddb89e55a7ce63a82c50fa", kill_on_drop: false }`
[INFO] [stdout] dec8f48ce0f05fd3f3bc04d0b2d4e18a657973c19dddb89e55a7ce63a82c50fa
[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] 358bafd58608fbb6ba0f5dc0ed8b5c242912cbe6b64486726e006db7683bd58e
[INFO] running `Command { std: "docker" "start" "-a" "358bafd58608fbb6ba0f5dc0ed8b5c242912cbe6b64486726e006db7683bd58e", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
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[INFO] [stderr]     Checking getrandom v0.2.16
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[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling pco v0.4.7 (/opt/rustwide/workdir/pco)
[INFO] [stderr]    Compiling serde v1.0.225
[INFO] [stderr]     Checking rand_xoshiro v0.6.0
[INFO] [stderr]     Checking better_io v0.1.0 (/opt/rustwide/workdir/better_io)
[INFO] [stderr]     Checking dtype_dispatch v0.1.1 (/opt/rustwide/workdir/dtype_dispatch)
[INFO] [stderr]     Checking lexical-write-integer v1.0.5
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[INFO] [stderr]     Checking arrow-csv v54.3.1
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[INFO] [stderr]     Checking q_compress_ffi v0.0.0 (/opt/rustwide/workdir/quantile-compression/ffi)
[INFO] [stdout] error: this type will no longer be must used: Result<&[u8], Infallible>
[INFO] [stdout]    --> quantile-compression/q_compress/examples/wrapped_time_series.rs:143:44
[INFO] [stdout]     |
[INFO] [stdout] 143 |     let t_min = TimestampNanos::from_bytes(compressed[..8].try_into().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<&[u8], Infallible>
[INFO] [stdout]    --> quantile-compression/q_compress/examples/wrapped_time_series.rs:150:44
[INFO] [stdout]     |
[INFO] [stdout] 150 |     let t_max = TimestampNanos::from_bytes(compressed[..8].try_into().unwrap())?;
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `q_compress` (example "wrapped_time_series") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "358bafd58608fbb6ba0f5dc0ed8b5c242912cbe6b64486726e006db7683bd58e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "358bafd58608fbb6ba0f5dc0ed8b5c242912cbe6b64486726e006db7683bd58e", kill_on_drop: false }`
[INFO] [stdout] 358bafd58608fbb6ba0f5dc0ed8b5c242912cbe6b64486726e006db7683bd58e