[INFO] cloning repository https://github.com/codebender828/proof-of-history
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/codebender828/proof-of-history" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcodebender828%2Fproof-of-history", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcodebender828%2Fproof-of-history'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] acc7290fd3648bec1627fe44aad28725e8037f3e
[INFO] checking codebender828/proof-of-history/acc7290fd3648bec1627fe44aad28725e8037f3e 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%2Fcodebender828%2Fproof-of-history" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/codebender828/proof-of-history
[INFO] finished tweaking git repo https://github.com/codebender828/proof-of-history
[INFO] tweaked toml for git repo https://github.com/codebender828/proof-of-history written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/codebender828/proof-of-history 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/codebender828/proof-of-history 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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] d9a457b1ba505fb5da55d0255c16edc57a50edba38249c992a089a3be5938bad
[INFO] running `Command { std: "docker" "start" "-a" "d9a457b1ba505fb5da55d0255c16edc57a50edba38249c992a089a3be5938bad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d9a457b1ba505fb5da55d0255c16edc57a50edba38249c992a089a3be5938bad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9a457b1ba505fb5da55d0255c16edc57a50edba38249c992a089a3be5938bad", kill_on_drop: false }`
[INFO] [stdout] d9a457b1ba505fb5da55d0255c16edc57a50edba38249c992a089a3be5938bad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 10af0a4c4cce12e1066e20253da979b335df960ef622075032d153d9564dc33a
[INFO] running `Command { std: "docker" "start" "-a" "10af0a4c4cce12e1066e20253da979b335df960ef622075032d153d9564dc33a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling libc v0.2.158
[INFO] [stderr]    Compiling autocfg v1.3.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.20
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling serde v1.0.210
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]     Checking constant_time_eq v0.3.1
[INFO] [stderr]     Checking hashbrown v0.14.5
[INFO] [stderr]     Checking arrayvec v0.7.6
[INFO] [stderr]     Checking arrayref v0.3.9
[INFO] [stderr]    Compiling cc v1.1.21
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]     Checking dashmap v6.1.0
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]    Compiling blake3 v1.5.4
[INFO] [stderr]    Compiling serde_derive v1.0.210
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking lite-proof-of-history v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Account` is never constructed
[INFO] [stdout]  --> src/account.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Account {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `State` is never constructed
[INFO] [stdout]  --> src/state.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct State {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Validator` is never constructed
[INFO] [stdout]  --> src/validator.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Validator {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<blake3::Hash, Infallible>
[INFO] [stdout]   --> src/main.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |         Hash::try_from(slot.slot_hash).unwrap().to_hex()
[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<blake3::Hash, Infallible>
[INFO] [stdout]   --> src/main.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |         Hash::try_from(slot.slot_hash).unwrap().to_hex()
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lite-proof-of-history` (bin "lite-proof-of-history" test) due to 2 previous errors; 3 warnings emitted
[INFO] [stdout] warning: struct `Account` is never constructed
[INFO] [stdout]  --> src/account.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Account {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: struct `State` is never constructed
[INFO] [stdout]  --> src/state.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct State {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Validator` is never constructed
[INFO] [stdout]  --> src/validator.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Validator {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<blake3::Hash, Infallible>
[INFO] [stdout]   --> src/main.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |         Hash::try_from(slot.slot_hash).unwrap().to_hex()
[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<blake3::Hash, Infallible>
[INFO] [stdout]   --> src/main.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |         Hash::try_from(slot.slot_hash).unwrap().to_hex()
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lite-proof-of-history` (bin "lite-proof-of-history") due to 2 previous errors; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "10af0a4c4cce12e1066e20253da979b335df960ef622075032d153d9564dc33a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10af0a4c4cce12e1066e20253da979b335df960ef622075032d153d9564dc33a", kill_on_drop: false }`
[INFO] [stdout] 10af0a4c4cce12e1066e20253da979b335df960ef622075032d153d9564dc33a