[INFO] cloning repository https://github.com/superbignut/risp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/superbignut/risp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsuperbignut%2Frisp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsuperbignut%2Frisp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 317d2083af4eac9f6ae116626a5a087518ca054f
[INFO] checking superbignut/risp against master#0f442e265c165c0a78633bef98de18517815150c for pr-129073
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsuperbignut%2Frisp" "/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/superbignut/risp on toolchain 0f442e265c165c0a78633bef98de18517815150c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0f442e265c165c0a78633bef98de18517815150c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/superbignut/risp
[INFO] finished tweaking git repo https://github.com/superbignut/risp
[INFO] tweaked toml for git repo https://github.com/superbignut/risp written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/superbignut/risp 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" "+0f442e265c165c0a78633bef98de18517815150c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking superbignut/risp against try#774bd5ba31b89dab12d58c29690ad9f7e5c9f063 for pr-129073
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsuperbignut%2Frisp" "/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/superbignut/risp on toolchain 774bd5ba31b89dab12d58c29690ad9f7e5c9f063
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+774bd5ba31b89dab12d58c29690ad9f7e5c9f063" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/superbignut/risp
[INFO] finished tweaking git repo https://github.com/superbignut/risp
[INFO] tweaked toml for git repo https://github.com/superbignut/risp written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/superbignut/risp 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" "+774bd5ba31b89dab12d58c29690ad9f7e5c9f063" "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-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" "+774bd5ba31b89dab12d58c29690ad9f7e5c9f063" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 74b7185d2e8913a034d85c92c6121d2df911a540859f5d564043996ba95ed365
[INFO] running `Command { std: "docker" "start" "-a" "74b7185d2e8913a034d85c92c6121d2df911a540859f5d564043996ba95ed365", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74b7185d2e8913a034d85c92c6121d2df911a540859f5d564043996ba95ed365", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74b7185d2e8913a034d85c92c6121d2df911a540859f5d564043996ba95ed365", kill_on_drop: false }`
[INFO] [stdout] 74b7185d2e8913a034d85c92c6121d2df911a540859f5d564043996ba95ed365
[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" "+774bd5ba31b89dab12d58c29690ad9f7e5c9f063" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 332d2ad823266d059e805f96a02f0bb7b959e1682d36ea3c38a88aa7c129af4d
[INFO] running `Command { std: "docker" "start" "-a" "332d2ad823266d059e805f96a02f0bb7b959e1682d36ea3c38a88aa7c129af4d", kill_on_drop: false }`
[INFO] [stderr]     Checking ltlisp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `iter`
[INFO] [stdout]   --> src/lib.rs:46:21
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn from_iter<T>(iter: T) -> Self
[INFO] [stdout]    |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_iter`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `iter`
[INFO] [stdout]   --> src/lib.rs:46:21
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn from_iter<T>(iter: T) -> Self
[INFO] [stdout]    |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_iter`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `efg`
[INFO] [stdout]   --> src/lib.rs:75:13
[INFO] [stdout]    |
[INFO] [stdout] 75 |         let efg: End<Vec<i32>, u32> = End::from_iter(d);
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_efg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `clone` and `fmt::format`
[INFO] [stdout]  --> src/main.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{clone, collections::HashMap, fmt::format, io, num::ParseFloatError, rc::Rc};
[INFO] [stdout]   |           ^^^^^                        ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `clone` and `fmt::format`
[INFO] [stdout]  --> src/main.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{clone, collections::HashMap, fmt::format, io, num::ParseFloatError, rc::Rc};
[INFO] [stdout]   |           ^^^^^                        ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `Command { std: "docker" "inspect" "332d2ad823266d059e805f96a02f0bb7b959e1682d36ea3c38a88aa7c129af4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "332d2ad823266d059e805f96a02f0bb7b959e1682d36ea3c38a88aa7c129af4d", kill_on_drop: false }`
[INFO] [stdout] 332d2ad823266d059e805f96a02f0bb7b959e1682d36ea3c38a88aa7c129af4d