[INFO] cloning repository https://github.com/decebal/fermah-small-blockchain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/decebal/fermah-small-blockchain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdecebal%2Ffermah-small-blockchain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdecebal%2Ffermah-small-blockchain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 88d4c61a6f3ae1c74cf02d9ee70df33fc8813ed0
[INFO] checking decebal/fermah-small-blockchain against try#409ef99a7d4dc96ae91f65d4b48413ed174514d6 for pr-137633
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdecebal%2Ffermah-small-blockchain" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/decebal/fermah-small-blockchain on toolchain 409ef99a7d4dc96ae91f65d4b48413ed174514d6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+409ef99a7d4dc96ae91f65d4b48413ed174514d6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/decebal/fermah-small-blockchain
[INFO] finished tweaking git repo https://github.com/decebal/fermah-small-blockchain
[INFO] tweaked toml for git repo https://github.com/decebal/fermah-small-blockchain written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/decebal/fermah-small-blockchain 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" "+409ef99a7d4dc96ae91f65d4b48413ed174514d6" "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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+409ef99a7d4dc96ae91f65d4b48413ed174514d6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4d844d54d2321da3b67e6ebfff1c277c00155c7159dcb1cdd7e709710fb12413
[INFO] running `Command { std: "docker" "start" "-a" "4d844d54d2321da3b67e6ebfff1c277c00155c7159dcb1cdd7e709710fb12413", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d844d54d2321da3b67e6ebfff1c277c00155c7159dcb1cdd7e709710fb12413", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d844d54d2321da3b67e6ebfff1c277c00155c7159dcb1cdd7e709710fb12413", kill_on_drop: false }`
[INFO] [stdout] 4d844d54d2321da3b67e6ebfff1c277c00155c7159dcb1cdd7e709710fb12413
[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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+409ef99a7d4dc96ae91f65d4b48413ed174514d6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a9d997e9de72f9e250be65e14bd7bbc6853562c52ab70ab0c983842f63edf77a
[INFO] running `Command { std: "docker" "start" "-a" "a9d997e9de72f9e250be65e14bd7bbc6853562c52ab70ab0c983842f63edf77a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling libc v0.2.158
[INFO] [stderr]    Compiling autocfg v1.3.0
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling shlex v1.3.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling serde v1.0.210
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]    Compiling serde_json v1.0.128
[INFO] [stderr]     Checking constant_time_eq v0.3.1
[INFO] [stderr]     Checking itoa v1.0.11
[INFO] [stderr]     Checking ryu v1.0.18
[INFO] [stderr]     Checking bytes v1.7.1
[INFO] [stderr]     Checking arrayref v0.3.8
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking pin-project-lite v0.2.14
[INFO] [stderr]     Checking arrayvec v0.7.6
[INFO] [stderr]    Compiling cc v1.1.18
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking mio v1.0.2
[INFO] [stderr]     Checking socket2 v0.5.7
[INFO] [stderr]     Checking signal-hook-registry v1.4.2
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling blake3 v1.5.4
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling serde_derive v1.0.210
[INFO] [stderr]    Compiling tokio-macros v2.4.0
[INFO] [stderr]     Checking tokio v1.40.0
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking fermah-small-blockchain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0449]: visibility qualifiers are not permitted here
[INFO] [stdout]   --> src/block.rs:26:1
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub impl Block {
[INFO] [stdout]    | ^^^ help: remove the qualifier
[INFO] [stdout]    |
[INFO] [stdout]    = note: place qualifiers on individual impl items instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0449]: visibility qualifiers are not permitted here
[INFO] [stdout]   --> src/block.rs:26:1
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub impl Block {
[INFO] [stdout]    | ^^^ help: remove the qualifier
[INFO] [stdout]    |
[INFO] [stdout]    = note: place qualifiers on individual impl items instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Block`
[INFO] [stdout]   --> src/main.rs:90:21
[INFO] [stdout]    |
[INFO] [stdout] 90 |     let mut block = Block::default();
[INFO] [stdout]    |                     ^^^^^ use of undeclared type `Block`
[INFO] [stdout]    |
[INFO] [stdout] note: struct `crate::block::Block` exists but is inaccessible
[INFO] [stdout]   --> src/block.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct Block {
[INFO] [stdout]    | ^^^^^^^^^^^^ not accessible
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde::Serialize`
[INFO] [stdout]   --> src/main.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 59 | use serde::Serialize;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Block`
[INFO] [stdout]   --> src/main.rs:90:21
[INFO] [stdout]    |
[INFO] [stdout] 90 |     let mut block = Block::default();
[INFO] [stdout]    |                     ^^^^^ use of undeclared type `Block`
[INFO] [stdout]    |
[INFO] [stdout] note: struct `crate::block::Block` exists but is inaccessible
[INFO] [stdout]   --> src/block.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct Block {
[INFO] [stdout]    | ^^^^^^^^^^^^ not accessible
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde::Serialize`
[INFO] [stdout]   --> src/main.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 59 | use serde::Serialize;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0449.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fermah-small-blockchain` (bin "fermah-small-blockchain") due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] Some errors have detailed explanations: E0433, E0449.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fermah-small-blockchain` (bin "fermah-small-blockchain" test) due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "a9d997e9de72f9e250be65e14bd7bbc6853562c52ab70ab0c983842f63edf77a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9d997e9de72f9e250be65e14bd7bbc6853562c52ab70ab0c983842f63edf77a", kill_on_drop: false }`
[INFO] [stdout] a9d997e9de72f9e250be65e14bd7bbc6853562c52ab70ab0c983842f63edf77a