[INFO] fetching crate seqsizzle 0.3.0...
[INFO] checking seqsizzle-0.3.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate seqsizzle 0.3.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate seqsizzle 0.3.0
[INFO] finished tweaking crates.io crate seqsizzle 0.3.0
[INFO] tweaked toml for crates.io crate seqsizzle 0.3.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate seqsizzle 0.3.0 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 crates.io crate seqsizzle 0.3.0 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] eaf9b66c28d98d00df91e687c9ba7c724bdf4f856c34673bb99e9f810a63afb8
[INFO] running `Command { std: "docker" "start" "-a" "eaf9b66c28d98d00df91e687c9ba7c724bdf4f856c34673bb99e9f810a63afb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eaf9b66c28d98d00df91e687c9ba7c724bdf4f856c34673bb99e9f810a63afb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eaf9b66c28d98d00df91e687c9ba7c724bdf4f856c34673bb99e9f810a63afb8", kill_on_drop: false }`
[INFO] [stdout] eaf9b66c28d98d00df91e687c9ba7c724bdf4f856c34673bb99e9f810a63afb8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 1c4181146662cd73fabb420626e92f08d6811128875e3079b97d6a55e6deccab
[INFO] running `Command { std: "docker" "start" "-a" "1c4181146662cd73fabb420626e92f08d6811128875e3079b97d6a55e6deccab", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling writeable v0.6.1
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[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling icu_normalizer_data v2.0.0
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[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling matrixmultiply v0.3.10
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[INFO] [stderr]    Compiling signal-hook v0.3.18
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[INFO] [stderr]     Checking safe_arch v0.7.4
[INFO] [stderr]    Compiling form_urlencoded v1.2.2
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[INFO] [stderr]    Compiling icu_collections v2.0.0
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[INFO] [stderr]     Checking csv v1.3.1
[INFO] [stderr]     Checking vec_map v0.8.2
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[INFO] [stderr]     Checking bio v2.3.0
[INFO] [stderr]    Compiling seqsizzle v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]    --> src/main.rs:187:27
[INFO] [stdout]     |
[INFO] [stdout] 187 |             let comment = record.get(3).expect(err_str).parse::<String>().unwrap();
[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 `seqsizzle` (bin "seqsizzle") 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<std::string::String, Infallible>
[INFO] [stdout]    --> src/main.rs:187:27
[INFO] [stdout]     |
[INFO] [stdout] 187 |             let comment = record.get(3).expect(err_str).parse::<String>().unwrap();
[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 `seqsizzle` (bin "seqsizzle" test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "1c4181146662cd73fabb420626e92f08d6811128875e3079b97d6a55e6deccab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c4181146662cd73fabb420626e92f08d6811128875e3079b97d6a55e6deccab", kill_on_drop: false }`
[INFO] [stdout] 1c4181146662cd73fabb420626e92f08d6811128875e3079b97d6a55e6deccab