[INFO] updating cached repository https://github.com/Joystream/substrate-forum-module
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d724d9946ab01c6d3b4307ca6ea9263dabd58d34
[INFO] checking Joystream/substrate-forum-module against try#e689e5eaefe96e6dc3ed5bb629c521b7d207aff7 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoystream%2Fsubstrate-forum-module" "work/builds/worker-4/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Joystream/substrate-forum-module on toolchain e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Joystream/substrate-forum-module
[INFO] finished tweaking git repo https://github.com/Joystream/substrate-forum-module
[INFO] tweaked toml for git repo https://github.com/Joystream/substrate-forum-module written to work/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/Joystream/substrate-forum-module already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 1516edcd66d7c1a1718278078b3630cecac8c20d2ed86736dc652c0122a7efe5
[INFO] running `"docker" "start" "-a" "1516edcd66d7c1a1718278078b3630cecac8c20d2ed86736dc652c0122a7efe5"`
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]    Compiling syn v0.15.31
[INFO] [stderr]    Compiling crunchy v0.2.1
[INFO] [stderr]     Checking hash-db v0.12.2
[INFO] [stderr]     Checking strum v0.14.0
[INFO] [stderr]    Compiling clear_on_drop v0.2.3
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling ring v0.14.6
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking proc-macro2 v0.4.29
[INFO] [stderr]     Checking trie-root v0.12.2
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]    Compiling hex-literal-impl v0.1.2
[INFO] [stderr]    Compiling generic-array v0.12.0
[INFO] [stderr]     Checking blake2-rfc v0.2.18
[INFO] [stderr]    Compiling sr-std v1.0.0 (https://github.com/joystream/substrate.git?rev=6dfc3e8b057bb00322136251a0f10305fbb1ad8f#6dfc3e8b)
[INFO] [stderr]    Compiling sr-io v1.0.0 (https://github.com/joystream/substrate.git?rev=6dfc3e8b057bb00322136251a0f10305fbb1ad8f#6dfc3e8b)
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]     Checking impl-serde v0.1.1
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking rand_chacha v0.1.1
[INFO] [stderr]     Checking memory-db v0.12.2
[INFO] [stderr]     Checking tiny-keccak v1.4.2
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]     Checking quote v0.6.12
[INFO] [stderr]     Checking hex-literal v0.1.4
[INFO] [stderr]    Compiling digest v0.8.0
[INFO] [stderr]     Checking hash256-std-hasher v0.12.2
[INFO] [stderr]     Checking hmac v0.7.0
[INFO] [stderr]     Checking backtrace v0.3.15
[INFO] [stderr]    Compiling curve25519-dalek v1.1.3
[INFO] [stderr]    Compiling proc-macro-crate v0.1.3
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking parity-wasm v0.31.3
[INFO] [stderr]     Checking merlin v1.1.0
[INFO] [stderr]     Checking uint v0.6.1
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[INFO] [stderr]     Checking pbkdf2 v0.3.0
[INFO] [stderr]     Checking fixed-hash v0.3.0
[INFO] [stderr]     Checking substrate-panic-handler v1.0.0 (https://github.com/joystream/substrate.git?rev=6dfc3e8b057bb00322136251a0f10305fbb1ad8f#6dfc3e8b)
[INFO] [stderr]     Checking sha2 v0.8.0
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[INFO] [stderr]     Checking parking_lot_core v0.4.0
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[INFO] [stderr]     Checking trie-db v0.12.2
[INFO] [stderr]     Checking parking_lot v0.7.1
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[INFO] [stderr]     Checking once_cell v0.1.8
[INFO] [stderr]     Checking wasmi v0.4.5
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling parity-codec-derive v3.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.90
[INFO] [stderr]    Compiling proc-macro-hack v0.5.5
[INFO] [stderr]    Compiling srml-support-procedural-tools-derive v1.0.0 (https://github.com/joystream/substrate.git?rev=6dfc3e8b057bb00322136251a0f10305fbb1ad8f#6dfc3e8b)
[INFO] [stderr]    Compiling sr-api-macros v1.0.0 (https://github.com/joystream/substrate.git?rev=6dfc3e8b057bb00322136251a0f10305fbb1ad8f#6dfc3e8b)
[INFO] [stderr]    Compiling strum_macros v0.14.0
[INFO] [stderr]    Compiling paste-impl v0.1.5
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking ed25519-dalek v1.0.0-pre.1
[INFO] [stderr]     Checking tiny-bip39 v0.6.2
[INFO] [stderr]    Compiling srml-support-procedural-tools v1.0.0 (https://github.com/joystream/substrate.git?rev=6dfc3e8b057bb00322136251a0f10305fbb1ad8f#6dfc3e8b)
[INFO] [stderr]     Checking schnorrkel v0.1.1
[INFO] [stderr]     Checking paste v0.1.5
[INFO] [stderr]     Checking substrate-bip39 v0.2.1 (https://github.com/paritytech/substrate-bip39#44307fda)
[INFO] [stderr]     Checking parity-codec v3.5.1
[INFO] [stderr]     Checking impl-codec v0.2.0
[INFO] [stderr]     Checking substrate-trie v1.0.0 (https://github.com/joystream/substrate.git?rev=6dfc3e8b057bb00322136251a0f10305fbb1ad8f#6dfc3e8b)
[INFO] [stderr]     Checking primitive-types v0.2.1
[INFO] [stderr]    Compiling srml-support-procedural v1.0.0 (https://github.com/joystream/substrate.git?rev=6dfc3e8b057bb00322136251a0f10305fbb1ad8f#6dfc3e8b)
[INFO] [stderr]     Checking substrate-primitives v1.0.0 (https://github.com/joystream/substrate.git?rev=6dfc3e8b057bb00322136251a0f10305fbb1ad8f#6dfc3e8b)
[INFO] [stderr]     Checking substrate-state-machine v1.0.0 (https://github.com/joystream/substrate.git?rev=6dfc3e8b057bb00322136251a0f10305fbb1ad8f#6dfc3e8b)
[INFO] [stderr]     Checking srml-metadata v1.0.0 (https://github.com/joystream/substrate.git?rev=6dfc3e8b057bb00322136251a0f10305fbb1ad8f#6dfc3e8b)
[INFO] [stderr]     Checking substrate-keyring v1.0.0 (https://github.com/joystream/substrate.git?rev=6dfc3e8b057bb00322136251a0f10305fbb1ad8f#6dfc3e8b)
[INFO] [stderr]     Checking sr-primitives v1.0.0 (https://github.com/joystream/substrate.git?rev=6dfc3e8b057bb00322136251a0f10305fbb1ad8f#6dfc3e8b)
[INFO] [stderr]     Checking substrate-inherents v1.0.0 (https://github.com/joystream/substrate.git?rev=6dfc3e8b057bb00322136251a0f10305fbb1ad8f#6dfc3e8b)
[INFO] [stderr]     Checking srml-support v1.0.0 (https://github.com/joystream/substrate.git?rev=6dfc3e8b057bb00322136251a0f10305fbb1ad8f#6dfc3e8b)
[INFO] [stderr]     Checking srml-system v1.0.0 (https://github.com/joystream/substrate.git?rev=6dfc3e8b057bb00322136251a0f10305fbb1ad8f#6dfc3e8b)
[INFO] [stderr]     Checking srml-balances v1.0.0 (https://github.com/joystream/substrate.git?rev=6dfc3e8b057bb00322136251a0f10305fbb1ad8f#6dfc3e8b)
[INFO] [stderr]     Checking srml-timestamp v1.0.0 (https://github.com/joystream/substrate.git?rev=6dfc3e8b057bb00322136251a0f10305fbb1ad8f#6dfc3e8b)
[INFO] [stderr]     Checking substrate-forum-module v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variant is never constructed: `Root`
[INFO] [stderr]    --> src/mock.rs:121:5
[INFO] [stderr]     |
[INFO] [stderr] 121 |     Root
[INFO] [stderr]     |     ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4m 55s
[INFO] running `"docker" "inspect" "1516edcd66d7c1a1718278078b3630cecac8c20d2ed86736dc652c0122a7efe5"`
[INFO] running `"docker" "rm" "-f" "1516edcd66d7c1a1718278078b3630cecac8c20d2ed86736dc652c0122a7efe5"`
[INFO] [stdout] 1516edcd66d7c1a1718278078b3630cecac8c20d2ed86736dc652c0122a7efe5