[INFO] fetching crate sketch-duplicates 0.1.0...
[INFO] checking sketch-duplicates-0.1.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate sketch-duplicates 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate sketch-duplicates 0.1.0
[INFO] finished tweaking crates.io crate sketch-duplicates 0.1.0
[INFO] tweaked toml for crates.io crate sketch-duplicates 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate sketch-duplicates 0.1.0 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 sketch-duplicates 0.1.0 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-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] 5a34f7258e60cc2065d81a35441d54b95580b52106caabfb2fb02936093e4e3f
[INFO] running `Command { std: "docker" "start" "-a" "5a34f7258e60cc2065d81a35441d54b95580b52106caabfb2fb02936093e4e3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a34f7258e60cc2065d81a35441d54b95580b52106caabfb2fb02936093e4e3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a34f7258e60cc2065d81a35441d54b95580b52106caabfb2fb02936093e4e3f", kill_on_drop: false }`
[INFO] [stdout] 5a34f7258e60cc2065d81a35441d54b95580b52106caabfb2fb02936093e4e3f
[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] fb72eeeebaf9f2fc9c37ef8cb6ccf40ea1460dc16766874e558d3a53aa392862
[INFO] running `Command { std: "docker" "start" "-a" "fb72eeeebaf9f2fc9c37ef8cb6ccf40ea1460dc16766874e558d3a53aa392862", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling rayon-core v1.7.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]    Compiling serde_json v1.0.56
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]    Compiling anyhow v1.0.31
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling rayon v1.3.1
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking metrohash v1.0.6
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.3
[INFO] [stderr]     Checking bit-vec v0.6.2
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking human-size v0.4.1
[INFO] [stderr]     Checking half v1.6.0
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking oorandom v11.1.2
[INFO] [stderr]     Checking bit-set v0.5.2
[INFO] [stderr]     Checking plotters v0.2.15
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_xorshift v0.2.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking criterion-plot v0.4.3
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking rusty-fork v0.3.0
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking proptest v0.10.0
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking tinytemplate v1.1.0
[INFO] [stderr]    Compiling structopt-derive v0.4.8
[INFO] [stderr]     Checking structopt v0.3.15
[INFO] [stderr]     Checking sketch-duplicates v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/main.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 46 | /         #[structopt(
[INFO] [stdout] 47 | |             about = "Sketch to filter by."
[INFO] [stdout] 48 | |         )]
[INFO] [stdout] 49 | |         sketch: PathBuf,
[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 `sketch-duplicates` (bin "sketch-duplicates") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "fb72eeeebaf9f2fc9c37ef8cb6ccf40ea1460dc16766874e558d3a53aa392862", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb72eeeebaf9f2fc9c37ef8cb6ccf40ea1460dc16766874e558d3a53aa392862", kill_on_drop: false }`
[INFO] [stdout] fb72eeeebaf9f2fc9c37ef8cb6ccf40ea1460dc16766874e558d3a53aa392862