[INFO] fetching crate ark-core 0.1.0...
[INFO] checking ark-core-0.1.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate ark-core 0.1.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate ark-core 0.1.0
[INFO] finished tweaking crates.io crate ark-core 0.1.0
[INFO] tweaked toml for crates.io crate ark-core 0.1.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ark-core 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 50 packages to latest compatible versions
[INFO] [stderr]       Adding getrandom v0.2.16 (available: v0.3.4)
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] f2d9188259f9397cea8e6ac46b4341a7dbe093bb7c60e994885d7d41292c6afe
[INFO] running `Command { std: "docker" "start" "-a" "f2d9188259f9397cea8e6ac46b4341a7dbe093bb7c60e994885d7d41292c6afe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f2d9188259f9397cea8e6ac46b4341a7dbe093bb7c60e994885d7d41292c6afe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2d9188259f9397cea8e6ac46b4341a7dbe093bb7c60e994885d7d41292c6afe", kill_on_drop: false }`
[INFO] [stdout] f2d9188259f9397cea8e6ac46b4341a7dbe093bb7c60e994885d7d41292c6afe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 2ac94077222920dd4ea976658cfcc07fa722d5494a0a932fa7fb2942cca00aa7
[INFO] running `Command { std: "docker" "start" "-a" "2ac94077222920dd4ea976658cfcc07fa722d5494a0a932fa7fb2942cca00aa7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling secp256k1-sys v0.9.2
[INFO] [stderr]    Compiling bitcoin-io v0.1.3
[INFO] [stderr]    Compiling bitcoin-internals v0.3.0
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling secp256k1-sys v0.10.1
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling ark-secp256k1-zkp-sys v0.9.1
[INFO] [stderr]    Compiling bitcoin-private v0.1.0
[INFO] [stderr]    Compiling hex_lit v0.1.1
[INFO] [stderr]     Checking hex-conservative v0.2.1
[INFO] [stderr]    Compiling bitcoin v0.32.7
[INFO] [stderr]     Checking bech32 v0.11.0
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]     Checking bitcoin-units v0.1.2
[INFO] [stderr]     Checking bitcoin_hashes v0.14.0
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking base58ck v0.1.0
[INFO] [stderr]     Checking secp256k1 v0.29.1
[INFO] [stderr]     Checking secp256k1 v0.28.2
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]     Checking ark-secp256k1-zkp v0.10.0
[INFO] [stderr]     Checking ark-core v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/history.rs:332:21
[INFO] [stdout]     |
[INFO] [stdout] 332 |               pubkey: "fc3ed4822401bc75858c6a7e08a974c68a777bcf87e6ba535d48afab7d00cf5f"
[INFO] [stdout]     |  _____________________^
[INFO] [stdout] 333 | |                 .parse()
[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<String, Infallible>
[INFO] [stdout]    --> src/history.rs:377:21
[INFO] [stdout]     |
[INFO] [stdout] 377 |               pubkey: "fc3ed4822401bc75858c6a7e08a974c68a777bcf87e6ba535d48afab7d00cf5f"
[INFO] [stdout]     |  _____________________^
[INFO] [stdout] 378 | |                 .parse()
[INFO] [stdout]     | |________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/history.rs:404:21
[INFO] [stdout]     |
[INFO] [stdout] 404 |               pubkey: "fc3ed4822401bc75858c6a7e08a974c68a777bcf87e6ba535d48afab7d00cf5f"
[INFO] [stdout]     |  _____________________^
[INFO] [stdout] 405 | |                 .parse()
[INFO] [stdout]     | |________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/history.rs:454:21
[INFO] [stdout]     |
[INFO] [stdout] 454 |               pubkey: "aa586eb052ebf1e676f6df4eaf3591c90d56a979871aefa9b67e5618cb7c0f25"
[INFO] [stdout]     |  _____________________^
[INFO] [stdout] 455 | |                 .parse()
[INFO] [stdout]     | |________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/history.rs:475:21
[INFO] [stdout]     |
[INFO] [stdout] 475 |               pubkey: "aa586eb052ebf1e676f6df4eaf3591c90d56a979871aefa9b67e5618cb7c0f25"
[INFO] [stdout]     |  _____________________^
[INFO] [stdout] 476 | |                 .parse()
[INFO] [stdout]     | |________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/history.rs:536:21
[INFO] [stdout]     |
[INFO] [stdout] 536 |               pubkey: "aa586eb052ebf1e676f6df4eaf3591c90d56a979871aefa9b67e5618cb7c0f25"
[INFO] [stdout]     |  _____________________^
[INFO] [stdout] 537 | |                 .parse()
[INFO] [stdout]     | |________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/history.rs:559:21
[INFO] [stdout]     |
[INFO] [stdout] 559 |               pubkey: "aa586eb052ebf1e676f6df4eaf3591c90d56a979871aefa9b67e5618cb7c0f25"
[INFO] [stdout]     |  _____________________^
[INFO] [stdout] 560 | |                 .parse()
[INFO] [stdout]     | |________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/history.rs:580:21
[INFO] [stdout]     |
[INFO] [stdout] 580 |               pubkey: "aa586eb052ebf1e676f6df4eaf3591c90d56a979871aefa9b67e5618cb7c0f25"
[INFO] [stdout]     |  _____________________^
[INFO] [stdout] 581 | |                 .parse()
[INFO] [stdout]     | |________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/history.rs:639:21
[INFO] [stdout]     |
[INFO] [stdout] 639 |               pubkey: "aa586eb052ebf1e676f6df4eaf3591c90d56a979871aefa9b67e5618cb7c0f25"
[INFO] [stdout]     |  _____________________^
[INFO] [stdout] 640 | |                 .parse()
[INFO] [stdout]     | |________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/history.rs:663:25
[INFO] [stdout]     |
[INFO] [stdout] 663 |                   pubkey: "aa586eb052ebf1e676f6df4eaf3591c90d56a979871aefa9b67e5618cb7c0f25"
[INFO] [stdout]     |  _________________________^
[INFO] [stdout] 664 | |                     .parse()
[INFO] [stdout]     | |____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/history.rs:685:25
[INFO] [stdout]     |
[INFO] [stdout] 685 |                   pubkey: "aa586eb052ebf1e676f6df4eaf3591c90d56a979871aefa9b67e5618cb7c0f25"
[INFO] [stdout]     |  _________________________^
[INFO] [stdout] 686 | |                     .parse()
[INFO] [stdout]     | |____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/history.rs:707:25
[INFO] [stdout]     |
[INFO] [stdout] 707 |                   pubkey: "aa586eb052ebf1e676f6df4eaf3591c90d56a979871aefa9b67e5618cb7c0f25"
[INFO] [stdout]     |  _________________________^
[INFO] [stdout] 708 | |                     .parse()
[INFO] [stdout]     | |____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ark-core` (lib test) due to 12 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "2ac94077222920dd4ea976658cfcc07fa722d5494a0a932fa7fb2942cca00aa7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ac94077222920dd4ea976658cfcc07fa722d5494a0a932fa7fb2942cca00aa7", kill_on_drop: false }`
[INFO] [stdout] 2ac94077222920dd4ea976658cfcc07fa722d5494a0a932fa7fb2942cca00aa7
