[INFO] cloning repository https://github.com/amiyatulu/data-structure
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/amiyatulu/data-structure" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famiyatulu%2Fdata-structure", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famiyatulu%2Fdata-structure'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dd8ab59e34491e7290954ffe82e9fc8e31587ebb
[INFO] building amiyatulu/data-structure against try#8b8eff55bd72abbb57167bc42222a7f91d41cb0d for pr-142134-abi-ast-error
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famiyatulu%2Fdata-structure" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/amiyatulu/data-structure on toolchain 8b8eff55bd72abbb57167bc42222a7f91d41cb0d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/amiyatulu/data-structure
[INFO] finished tweaking git repo https://github.com/amiyatulu/data-structure
[INFO] tweaked toml for git repo https://github.com/amiyatulu/data-structure written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/amiyatulu/data-structure 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" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2d14beaff4bc273494ce4e60a06dc6e95a44c4b7ad8ae2c110763ef80ec40ed6
[INFO] running `Command { std: "docker" "start" "-a" "2d14beaff4bc273494ce4e60a06dc6e95a44c4b7ad8ae2c110763ef80ec40ed6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2d14beaff4bc273494ce4e60a06dc6e95a44c4b7ad8ae2c110763ef80ec40ed6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d14beaff4bc273494ce4e60a06dc6e95a44c4b7ad8ae2c110763ef80ec40ed6", kill_on_drop: false }`
[INFO] [stdout] 2d14beaff4bc273494ce4e60a06dc6e95a44c4b7ad8ae2c110763ef80ec40ed6
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "3f6b5eba090320ec1bd97c3c89a0f7df1afb568b1f3819775e83df980c0b1ea5", kill_on_drop: false }`
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[INFO] [stdout] warning: unused variable: `factorial_value`
[INFO] [stdout]   --> recursion_factorial/src/main.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let factorial_value = factorial(num);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_factorial_value`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
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[INFO] [stderr]    Compiling mean v0.1.0 (/opt/rustwide/workdir/statistics/mean)
[INFO] [stderr]    Compiling reputation_score v0.1.0 (/opt/rustwide/workdir/reputation_score)
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]   --> reputation_score/src/main.rs:75:5
[INFO] [stdout]    |
[INFO] [stdout] 74 | struct Account {
[INFO] [stdout]    |        ------- field in this struct
[INFO] [stdout] 75 |     id: String,
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling database v0.1.0 (/opt/rustwide/workdir/database)
[INFO] [stderr]    Compiling if-watch v3.2.0
[INFO] [stderr]    Compiling hickory-resolver v0.24.1
[INFO] [stderr]    Compiling multiaddr v0.18.1
[INFO] [stderr]    Compiling async-std-resolver v0.24.1
[INFO] [stderr]    Compiling libp2p-core v0.41.3
[INFO] [stderr]    Compiling json-parsing v0.1.0 (/opt/rustwide/workdir/json-parsing)
[INFO] [stdout] warning: unused import: `serde_json::json`
[INFO] [stdout]  --> json-parsing/src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use serde_json::json;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling libp2p-swarm v0.44.2
[INFO] [stderr]    Compiling libp2p-tls v0.3.0
[INFO] [stderr]    Compiling libp2p-websocket v0.43.2
[INFO] [stderr]    Compiling libp2p-yamux v0.45.1
[INFO] [stderr]    Compiling libp2p-noise v0.44.0
[INFO] [stderr]    Compiling libp2p-dns v0.41.1
[INFO] [stderr]    Compiling libp2p-tcp v0.41.0
[INFO] [stderr]    Compiling libp2p-connection-limits v0.3.1
[INFO] [stderr]    Compiling libp2p-ping v0.44.1
[INFO] [stderr]    Compiling libp2p-allow-block-list v0.3.0
[INFO] [stderr]    Compiling libp2p v0.53.2
[INFO] [stderr]    Compiling ping v0.1.0 (/opt/rustwide/workdir/p2p-programming/ping)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 52.08s
[INFO] running `Command { std: "docker" "inspect" "3f6b5eba090320ec1bd97c3c89a0f7df1afb568b1f3819775e83df980c0b1ea5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f6b5eba090320ec1bd97c3c89a0f7df1afb568b1f3819775e83df980c0b1ea5", kill_on_drop: false }`
[INFO] [stdout] 3f6b5eba090320ec1bd97c3c89a0f7df1afb568b1f3819775e83df980c0b1ea5
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ceff888065b3f682bd8ee72f2b2e1f252b9b84b4c0a9efd3bbad09f077fe7687
[INFO] running `Command { std: "docker" "start" "-a" "ceff888065b3f682bd8ee72f2b2e1f252b9b84b4c0a9efd3bbad09f077fe7687", kill_on_drop: false }`
[INFO] [stderr]    Compiling n_square v0.1.0 (/opt/rustwide/workdir/plots/n_square)
[INFO] [stderr]    Compiling big-o-plot v0.1.0 (/opt/rustwide/workdir/big-o-plot)
[INFO] [stderr]    Compiling constant-factors v0.1.0 (/opt/rustwide/workdir/constant-factors)
[INFO] [stderr]    Compiling random-number v0.1.0 (/opt/rustwide/workdir/random-number)
[INFO] [stderr]    Compiling password-encryption v0.1.0 (/opt/rustwide/workdir/password-encryption)
[INFO] [stderr]    Compiling random-number-seed v0.1.0 (/opt/rustwide/workdir/random-number-seed)
[INFO] [stderr]    Compiling map-storage v0.1.0 (/opt/rustwide/workdir/map-storage)
[INFO] [stderr]    Compiling constant-factors2 v0.1.0 (/opt/rustwide/workdir/constant-factors2)
[INFO] [stderr]    Compiling reputation_score v0.1.0 (/opt/rustwide/workdir/reputation_score)
[INFO] [stderr]    Compiling database v0.1.0 (/opt/rustwide/workdir/database)
[INFO] [stderr]    Compiling transcription v0.1.0 (/opt/rustwide/workdir/transcription)
[INFO] [stderr]    Compiling six_odd_numbers v0.1.0 (/opt/rustwide/workdir/six_odd_numbers)
[INFO] [stderr]    Compiling recursion_factorial v0.1.0 (/opt/rustwide/workdir/recursion_factorial)
[INFO] [stderr]    Compiling ping v0.1.0 (/opt/rustwide/workdir/p2p-programming/ping)
[INFO] [stderr]    Compiling json-parsing v0.1.0 (/opt/rustwide/workdir/json-parsing)
[INFO] [stderr]    Compiling person-fit v0.1.0 (/opt/rustwide/workdir/person-fit)
[INFO] [stdout] warning: unused variable: `factorial_value`
[INFO] [stdout]   --> recursion_factorial/src/main.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let factorial_value = factorial(num);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_factorial_value`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]   --> reputation_score/src/main.rs:75:5
[INFO] [stdout]    |
[INFO] [stdout] 74 | struct Account {
[INFO] [stdout]    |        ------- field in this struct
[INFO] [stdout] 75 |     id: String,
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde_json::json`
[INFO] [stdout]  --> json-parsing/src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use serde_json::json;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling recursion_fibonacci v0.1.0 (/opt/rustwide/workdir/recursion_fibonacci)
[INFO] [stderr]    Compiling mean v0.1.0 (/opt/rustwide/workdir/statistics/mean)
[INFO] [stderr]    Compiling baby-formula v0.1.0 (/opt/rustwide/workdir/baby-formula)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.35s
[INFO] running `Command { std: "docker" "inspect" "ceff888065b3f682bd8ee72f2b2e1f252b9b84b4c0a9efd3bbad09f077fe7687", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ceff888065b3f682bd8ee72f2b2e1f252b9b84b4c0a9efd3bbad09f077fe7687", kill_on_drop: false }`
[INFO] [stdout] ceff888065b3f682bd8ee72f2b2e1f252b9b84b4c0a9efd3bbad09f077fe7687