[INFO] cloning repository https://github.com/Nilstrieb/lambda-calculus
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Nilstrieb/lambda-calculus" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNilstrieb%2Flambda-calculus", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNilstrieb%2Flambda-calculus'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 700c8624f65c24ea44c28d55a20e3f04f4cb6b24
[INFO] checking Nilstrieb/lambda-calculus against 36e0a7eac2392bdd51fab6e7ff1d8c0e42d33bf6 for pr-160581
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNilstrieb%2Flambda-calculus" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Nilstrieb/lambda-calculus
[INFO] finished tweaking git repo https://github.com/Nilstrieb/lambda-calculus
[INFO] tweaked toml for git repo https://github.com/Nilstrieb/lambda-calculus written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Nilstrieb/lambda-calculus on toolchain 36e0a7eac2392bdd51fab6e7ff1d8c0e42d33bf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36e0a7eac2392bdd51fab6e7ff1d8c0e42d33bf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Nilstrieb/lambda-calculus 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" "+36e0a7eac2392bdd51fab6e7ff1d8c0e42d33bf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking Nilstrieb/lambda-calculus against 36e0a7eac2392bdd51fab6e7ff1d8c0e42d33bf6 for pr-160581
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNilstrieb%2Flambda-calculus" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Nilstrieb/lambda-calculus
[INFO] finished tweaking git repo https://github.com/Nilstrieb/lambda-calculus
[INFO] tweaked toml for git repo https://github.com/Nilstrieb/lambda-calculus written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Nilstrieb/lambda-calculus on toolchain 36e0a7eac2392bdd51fab6e7ff1d8c0e42d33bf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36e0a7eac2392bdd51fab6e7ff1d8c0e42d33bf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Nilstrieb/lambda-calculus 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" "+36e0a7eac2392bdd51fab6e7ff1d8c0e42d33bf6" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded similar v2.1.0
[INFO] [stderr]   Downloaded utf8-ranges v1.0.4
[INFO] [stderr]   Downloaded logos v0.12.0
[INFO] [stderr]   Downloaded logos-derive v0.12.0
[INFO] [stderr]   Downloaded ariadne v0.1.3
[INFO] [stderr]   Downloaded const-random v0.1.13
[INFO] [stderr]   Downloaded const-random-macro v0.1.13
[INFO] [stderr]   Downloaded serde_yaml v0.8.23
[INFO] [stderr]   Downloaded chumsky v0.7.0
[INFO] [stderr]   Downloaded insta v1.12.0
[INFO] [stderr]   Downloaded libc v0.2.116
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] cdaae79315db5af8aadf42d77bacc17dbb50da2432ac3bb03b83c5e7e8e67676
[INFO] running `Command { std: "docker" "start" "cdaae79315db5af8aadf42d77bacc17dbb50da2432ac3bb03b83c5e7e8e67676", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cdaae79315db5af8aadf42d77bacc17dbb50da2432ac3bb03b83c5e7e8e67676", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "cdaae79315db5af8aadf42d77bacc17dbb50da2432ac3bb03b83c5e7e8e67676" "/opt/rustwide/cargo-home/bin/cargo" "+36e0a7eac2392bdd51fab6e7ff1d8c0e42d33bf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cdaae79315db5af8aadf42d77bacc17dbb50da2432ac3bb03b83c5e7e8e67676", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "cdaae79315db5af8aadf42d77bacc17dbb50da2432ac3bb03b83c5e7e8e67676" "/opt/rustwide/cargo-home/bin/cargo" "+36e0a7eac2392bdd51fab6e7ff1d8c0e42d33bf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling libc v0.2.116
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]    Compiling beef v0.5.1
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]     Checking yansi v0.5.0
[INFO] [stderr]     Checking ryu v1.0.9
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]    Compiling serde_json v1.0.78
[INFO] [stderr]     Checking once_cell v1.9.0
[INFO] [stderr]     Checking similar v2.1.0
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking ariadne v0.1.3
[INFO] [stderr]    Compiling getrandom v0.2.4
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]     Checking console v0.15.0
[INFO] [stderr]    Compiling const-random-macro v0.1.13
[INFO] [stderr]     Checking const-random v0.1.13
[INFO] [stderr]     Checking ahash v0.3.8
[INFO] [stderr]     Checking chumsky v0.7.0
[INFO] [stderr]    Compiling logos-derive v0.12.0
[INFO] [stderr]     Checking logos v0.12.0
[INFO] [stderr]     Checking lambda-calculus v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/lib.rs:56:14
[INFO] [stdout]    |
[INFO] [stdout] 56 |         Name(String),
[INFO] [stdout]    |         ---- ^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 56 -         Name(String),
[INFO] [stdout] 56 +         Name(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `callee` and `argument` are never read
[INFO] [stdout]   --> src/lib.rs:58:13
[INFO] [stdout]    |
[INFO] [stdout] 57 |         Application {
[INFO] [stdout]    |         ----------- fields in this variant
[INFO] [stdout] 58 |             callee: Box<Expr>,
[INFO] [stdout]    |             ^^^^^^
[INFO] [stdout] 59 |             argument: Box<Expr>,
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `params` and `body` are never read
[INFO] [stdout]   --> src/lib.rs:62:13
[INFO] [stdout]    |
[INFO] [stdout] 61 |         Abstraction {
[INFO] [stdout]    |         ----------- fields in this variant
[INFO] [stdout] 62 |             params: Vec<char>,
[INFO] [stdout]    |             ^^^^^^
[INFO] [stdout] 63 |             body: Box<Expr>,
[INFO] [stdout]    |             ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking serde_yaml v0.8.23
[INFO] [stderr]     Checking insta v1.12.0
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/lib.rs:56:14
[INFO] [stdout]    |
[INFO] [stdout] 56 |         Name(String),
[INFO] [stdout]    |         ---- ^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 56 -         Name(String),
[INFO] [stdout] 56 +         Name(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `callee` and `argument` are never read
[INFO] [stdout]   --> src/lib.rs:58:13
[INFO] [stdout]    |
[INFO] [stdout] 57 |         Application {
[INFO] [stdout]    |         ----------- fields in this variant
[INFO] [stdout] 58 |             callee: Box<Expr>,
[INFO] [stdout]    |             ^^^^^^
[INFO] [stdout] 59 |             argument: Box<Expr>,
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `params` and `body` are never read
[INFO] [stdout]   --> src/lib.rs:62:13
[INFO] [stdout]    |
[INFO] [stdout] 61 |         Abstraction {
[INFO] [stdout]    |         ----------- fields in this variant
[INFO] [stdout] 62 |             params: Vec<char>,
[INFO] [stdout]    |             ^^^^^^
[INFO] [stdout] 63 |             body: Box<Expr>,
[INFO] [stdout]    |             ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.72s
[INFO] running `Command { std: "docker" "inspect" "cdaae79315db5af8aadf42d77bacc17dbb50da2432ac3bb03b83c5e7e8e67676", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdaae79315db5af8aadf42d77bacc17dbb50da2432ac3bb03b83c5e7e8e67676", kill_on_drop: false }`
[INFO] [stdout] cdaae79315db5af8aadf42d77bacc17dbb50da2432ac3bb03b83c5e7e8e67676
