[INFO] cloning repository https://github.com/Eviber/ready-set-boole
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Eviber/ready-set-boole" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEviber%2Fready-set-boole", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEviber%2Fready-set-boole'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4f88ed718c36ad2c1d3aabcd208af8582a627681
[INFO] checking Eviber/ready-set-boole against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEviber%2Fready-set-boole" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Eviber/ready-set-boole on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Eviber/ready-set-boole
[INFO] finished tweaking git repo https://github.com/Eviber/ready-set-boole
[INFO] tweaked toml for git repo https://github.com/Eviber/ready-set-boole written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Eviber/ready-set-boole 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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fe78fcf120fbe9c28118e81ae2cb7001f17efd7e6c73483942362979a656cc36
[INFO] running `Command { std: "docker" "start" "-a" "fe78fcf120fbe9c28118e81ae2cb7001f17efd7e6c73483942362979a656cc36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fe78fcf120fbe9c28118e81ae2cb7001f17efd7e6c73483942362979a656cc36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe78fcf120fbe9c28118e81ae2cb7001f17efd7e6c73483942362979a656cc36", kill_on_drop: false }`
[INFO] [stdout] fe78fcf120fbe9c28118e81ae2cb7001f17efd7e6c73483942362979a656cc36
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8eb734ab33b988c0a8a132145625c0e21f98dfe18f4e9c3dadbd8e37f66cc059
[INFO] running `Command { std: "docker" "start" "-a" "8eb734ab33b988c0a8a132145625c0e21f98dfe18f4e9c3dadbd8e37f66cc059", kill_on_drop: false }`
[INFO] [stderr]     Checking ready-set-boole v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `variables` is never read
[INFO] [stdout]   --> src/ex05/node.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub struct Tree {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 37 |     pub root: Node,
[INFO] [stdout] 38 |     pub variables: Vec<Rc<Cell<Var>>>,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `variables` is never read
[INFO] [stdout]   --> src/ex05/node.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub struct Tree {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 37 |     pub root: Node,
[INFO] [stdout] 38 |     pub variables: Vec<Rc<Cell<Var>>>,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `value` is never read
[INFO] [stdout]   --> src/ex06/node.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct Variable {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] 19 |     pub name: char,
[INFO] [stdout] 20 |     pub value: bool,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Variable` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `variables` is never read
[INFO] [stdout]    --> src/ex06/node.rs:112:9
[INFO] [stdout]     |
[INFO] [stdout] 110 | pub struct Tree {
[INFO] [stdout]     |            ---- field in this struct
[INFO] [stdout] 111 |     pub root: Node,
[INFO] [stdout] 112 |     pub variables: Vec<VarCell>,
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.36s
[INFO] running `Command { std: "docker" "inspect" "8eb734ab33b988c0a8a132145625c0e21f98dfe18f4e9c3dadbd8e37f66cc059", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8eb734ab33b988c0a8a132145625c0e21f98dfe18f4e9c3dadbd8e37f66cc059", kill_on_drop: false }`
[INFO] [stdout] 8eb734ab33b988c0a8a132145625c0e21f98dfe18f4e9c3dadbd8e37f66cc059
[INFO] checking Eviber/ready-set-boole against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEviber%2Fready-set-boole" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Eviber/ready-set-boole on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Eviber/ready-set-boole
[INFO] finished tweaking git repo https://github.com/Eviber/ready-set-boole
[INFO] tweaked toml for git repo https://github.com/Eviber/ready-set-boole written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Eviber/ready-set-boole 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" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ecd46251cc22e2053870f840247d368bd5f9e11b4206557149b66b0d6ce8043a
[INFO] running `Command { std: "docker" "start" "-a" "ecd46251cc22e2053870f840247d368bd5f9e11b4206557149b66b0d6ce8043a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ecd46251cc22e2053870f840247d368bd5f9e11b4206557149b66b0d6ce8043a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecd46251cc22e2053870f840247d368bd5f9e11b4206557149b66b0d6ce8043a", kill_on_drop: false }`
[INFO] [stdout] ecd46251cc22e2053870f840247d368bd5f9e11b4206557149b66b0d6ce8043a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 025516697df37c1850948acbf23b60f7ad0cc4076d04e31776eb2b16121bc7d6
[INFO] running `Command { std: "docker" "start" "-a" "025516697df37c1850948acbf23b60f7ad0cc4076d04e31776eb2b16121bc7d6", kill_on_drop: false }`
[INFO] [stderr]     Checking ready-set-boole v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `variables` is never read
[INFO] [stdout]   --> src/ex05/node.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub struct Tree {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 37 |     pub root: Node,
[INFO] [stdout] 38 |     pub variables: Vec<Rc<Cell<Var>>>,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `value` is never read
[INFO] [stdout]   --> src/ex06/node.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct Variable {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] 19 |     pub name: char,
[INFO] [stdout] 20 |     pub value: bool,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Variable` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `variables` is never read
[INFO] [stdout]    --> src/ex06/node.rs:112:9
[INFO] [stdout]     |
[INFO] [stdout] 110 | pub struct Tree {
[INFO] [stdout]     |            ---- field in this struct
[INFO] [stdout] 111 |     pub root: Node,
[INFO] [stdout] 112 |     pub variables: Vec<VarCell>,
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `variables` is never read
[INFO] [stdout]   --> src/ex05/node.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub struct Tree {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 37 |     pub root: Node,
[INFO] [stdout] 38 |     pub variables: Vec<Rc<Cell<Var>>>,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.29s
[INFO] running `Command { std: "docker" "inspect" "025516697df37c1850948acbf23b60f7ad0cc4076d04e31776eb2b16121bc7d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "025516697df37c1850948acbf23b60f7ad0cc4076d04e31776eb2b16121bc7d6", kill_on_drop: false }`
[INFO] [stdout] 025516697df37c1850948acbf23b60f7ad0cc4076d04e31776eb2b16121bc7d6