[INFO] cloning repository https://github.com/DrewRoss5/Feynman
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DrewRoss5/Feynman" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDrewRoss5%2FFeynman", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDrewRoss5%2FFeynman'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8d82d7a8d86d9dfc2af238737241812038c1ef86
[INFO] checking DrewRoss5/Feynman against try#b28cc4eb48a6415b914e8ad0308be255ff8d73ed for pr-156508-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDrewRoss5%2FFeynman" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/DrewRoss5/Feynman
[INFO] finished tweaking git repo https://github.com/DrewRoss5/Feynman
[INFO] tweaked toml for git repo https://github.com/DrewRoss5/Feynman written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/DrewRoss5/Feynman on toolchain b28cc4eb48a6415b914e8ad0308be255ff8d73ed
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b28cc4eb48a6415b914e8ad0308be255ff8d73ed" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/DrewRoss5/Feynman 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" "+b28cc4eb48a6415b914e8ad0308be255ff8d73ed" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+b28cc4eb48a6415b914e8ad0308be255ff8d73ed" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 142c720871c7d223a667ec2bc41603f8b61cb550406972cbb36f411ac69882db
[INFO] running `Command { std: "docker" "start" "-a" "142c720871c7d223a667ec2bc41603f8b61cb550406972cbb36f411ac69882db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "142c720871c7d223a667ec2bc41603f8b61cb550406972cbb36f411ac69882db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "142c720871c7d223a667ec2bc41603f8b61cb550406972cbb36f411ac69882db", kill_on_drop: false }`
[INFO] [stdout] 142c720871c7d223a667ec2bc41603f8b61cb550406972cbb36f411ac69882db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+b28cc4eb48a6415b914e8ad0308be255ff8d73ed" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9874d0566055a3cd1f5fa1004f4e59bd116c261020f154015bcac4d62d2a4e11
[INFO] running `Command { std: "docker" "start" "-a" "9874d0566055a3cd1f5fa1004f4e59bd116c261020f154015bcac4d62d2a4e11", kill_on_drop: false }`
[INFO] [stderr]     Checking feynman v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]   --> src/interpreter/nodes.rs:38:22
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn assign(&self, val: &mut Box<dyn Node>) -> Result<(), Error> {
[INFO] [stdout]    |                      ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]   --> src/interpreter/nodes.rs:88:22
[INFO] [stdout]    |
[INFO] [stdout] 88 |     fn assign(&self, val: &mut Box<dyn Node>) -> Result<(), Error> {
[INFO] [stdout]    |                      ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `body_str` is never read
[INFO] [stdout]    --> src/interpreter/nodes.rs:207:28
[INFO] [stdout]     |
[INFO] [stdout] 207 |         let mut body_str = String::new();
[INFO] [stdout]     |                            ^^^^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] 208 |         match  &self.body {
[INFO] [stdout] 209 |             Some(body_node) => {body_str = body_node.text()}
[INFO] [stdout]     |                                 -------- `body_str` is overwritten here before the previous value is read
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]    --> src/interpreter/nodes.rs:214:22
[INFO] [stdout]     |
[INFO] [stdout] 214 |     fn assign(&self, val: &mut Box<dyn Node>) -> Result<(), Error> {
[INFO] [stdout]     |                      ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]   --> src/interpreter/nodes.rs:38:22
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn assign(&self, val: &mut Box<dyn Node>) -> Result<(), Error> {
[INFO] [stdout]    |                      ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]   --> src/interpreter/nodes.rs:88:22
[INFO] [stdout]    |
[INFO] [stdout] 88 |     fn assign(&self, val: &mut Box<dyn Node>) -> Result<(), Error> {
[INFO] [stdout]    |                      ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `body_str` is never read
[INFO] [stdout]    --> src/interpreter/nodes.rs:207:28
[INFO] [stdout]     |
[INFO] [stdout] 207 |         let mut body_str = String::new();
[INFO] [stdout]     |                            ^^^^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] 208 |         match  &self.body {
[INFO] [stdout] 209 |             Some(body_node) => {body_str = body_node.text()}
[INFO] [stdout]     |                                 -------- `body_str` is overwritten here before the previous value is read
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]    --> src/interpreter/nodes.rs:214:22
[INFO] [stdout]     |
[INFO] [stdout] 214 |     fn assign(&self, val: &mut Box<dyn Node>) -> Result<(), Error> {
[INFO] [stdout]     |                      ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "9874d0566055a3cd1f5fa1004f4e59bd116c261020f154015bcac4d62d2a4e11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9874d0566055a3cd1f5fa1004f4e59bd116c261020f154015bcac4d62d2a4e11", kill_on_drop: false }`
[INFO] [stdout] 9874d0566055a3cd1f5fa1004f4e59bd116c261020f154015bcac4d62d2a4e11