[INFO] cloning repository https://github.com/sdmg15/taproot-asset-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sdmg15/taproot-asset-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsdmg15%2Ftaproot-asset-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsdmg15%2Ftaproot-asset-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fe04ef7992cfb2d0e7bf2951204ee783d26a6e78
[INFO] checking sdmg15/taproot-asset-rs against try#93086cfebfccb79083c59d0d3b2052944bba643c for pr-146440-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsdmg15%2Ftaproot-asset-rs" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/sdmg15/taproot-asset-rs
[INFO] finished tweaking git repo https://github.com/sdmg15/taproot-asset-rs
[INFO] tweaked toml for git repo https://github.com/sdmg15/taproot-asset-rs written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sdmg15/taproot-asset-rs on toolchain 93086cfebfccb79083c59d0d3b2052944bba643c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/sdmg15/taproot-asset-rs 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" "+93086cfebfccb79083c59d0d3b2052944bba643c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 36f99da7444f2a7319eddd5c70937dda7651080ea6785fbcfe397cc3ac87f1bb
[INFO] running `Command { std: "docker" "start" "-a" "36f99da7444f2a7319eddd5c70937dda7651080ea6785fbcfe397cc3ac87f1bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "36f99da7444f2a7319eddd5c70937dda7651080ea6785fbcfe397cc3ac87f1bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36f99da7444f2a7319eddd5c70937dda7651080ea6785fbcfe397cc3ac87f1bb", kill_on_drop: false }`
[INFO] [stdout] 36f99da7444f2a7319eddd5c70937dda7651080ea6785fbcfe397cc3ac87f1bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8e401bb7006c48e025aa3bbd0855398c8a84fbb30439c7ccc92af60d029dabcf
[INFO] running `Command { std: "docker" "start" "-a" "8e401bb7006c48e025aa3bbd0855398c8a84fbb30439c7ccc92af60d029dabcf", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling unicode-ident v1.0.22
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling bitcoin-io v0.1.3
[INFO] [stderr]    Compiling find-msvc-tools v0.1.4
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling bitcoin-internals v0.3.0
[INFO] [stderr]    Compiling cc v1.2.45
[INFO] [stderr]    Compiling zerocopy v0.8.27
[INFO] [stderr]     Checking hex-conservative v0.2.1
[INFO] [stderr]    Compiling hex_lit v0.1.1
[INFO] [stderr]    Compiling bitcoin v0.32.7
[INFO] [stderr]     Checking bech32 v0.11.0
[INFO] [stderr]    Compiling syn v2.0.109
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]    Compiling secp256k1-sys v0.10.1
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking bitcoin_hashes v0.14.0
[INFO] [stderr]     Checking bitcoin-units v0.1.2
[INFO] [stderr]     Checking secp256k1 v0.29.1
[INFO] [stderr]     Checking base58ck v0.1.0
[INFO] [stderr]     Checking mssmt v0.1.0 (/opt/rustwide/workdir/mssmt)
[INFO] [stdout] error: struct `PersistedTree` is never constructed
[INFO] [stdout]    --> mssmt/src/tree.rs:199:12
[INFO] [stdout]     |
[INFO] [stdout] 199 | pub struct PersistedTree<P> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]     = note: `#[deny(unused_unconstructable_pub_structs)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `PersistedTree` is never constructed
[INFO] [stdout]    --> mssmt/src/tree.rs:199:12
[INFO] [stdout]     |
[INFO] [stdout] 199 | pub struct PersistedTree<P> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]     = note: `#[deny(unused_unconstructable_pub_structs)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mssmt` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `mssmt` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "8e401bb7006c48e025aa3bbd0855398c8a84fbb30439c7ccc92af60d029dabcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e401bb7006c48e025aa3bbd0855398c8a84fbb30439c7ccc92af60d029dabcf", kill_on_drop: false }`
[INFO] [stdout] 8e401bb7006c48e025aa3bbd0855398c8a84fbb30439c7ccc92af60d029dabcf
