[INFO] cloning repository https://github.com/lolepop/lisp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lolepop/lisp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flolepop%2Flisp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flolepop%2Flisp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 54894f9cdda53bf9a4038be3db931aa9a31596f7
[INFO] building lolepop/lisp against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flolepop%2Flisp" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lolepop/lisp on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lolepop/lisp
[INFO] finished tweaking git repo https://github.com/lolepop/lisp
[INFO] tweaked toml for git repo https://github.com/lolepop/lisp written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/lolepop/lisp 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c181205889dd371f742aa4e70dbf6ca3f2bcb31171295a3d18cb11bc4ac35823
[INFO] running `Command { std: "docker" "start" "-a" "c181205889dd371f742aa4e70dbf6ca3f2bcb31171295a3d18cb11bc4ac35823", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c181205889dd371f742aa4e70dbf6ca3f2bcb31171295a3d18cb11bc4ac35823", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c181205889dd371f742aa4e70dbf6ca3f2bcb31171295a3d18cb11bc4ac35823", kill_on_drop: false }`
[INFO] [stdout] c181205889dd371f742aa4e70dbf6ca3f2bcb31171295a3d18cb11bc4ac35823
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8974db79b8f17751aaf9ef8decaa792a261e198e64429f28dcd9fc313cb11204
[INFO] running `Command { std: "docker" "start" "-a" "8974db79b8f17751aaf9ef8decaa792a261e198e64429f28dcd9fc313cb11204", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling lisp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `any::Any` and `cell::RefCell`
[INFO] [stdout]  --> src/env.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{cell::RefCell, any::Any};
[INFO] [stdout]   |           ^^^^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `String` is never constructed
[INFO] [stdout]   --> src/env.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub enum EnvType<'a> {
[INFO] [stdout]    |          ------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 46 |     String(String),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `EnvType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `parent` are never read
[INFO] [stdout]    --> src/env.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 109 | pub struct Env<'a> {
[INFO] [stdout]     |            --- fields in this struct
[INFO] [stdout] 110 |     id: EnvId,
[INFO] [stdout]     |     ^^
[INFO] [stdout] 111 |     parent: Option<EnvId>,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Env` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `id` is never used
[INFO] [stdout]    --> src/env.rs:187:12
[INFO] [stdout]     |
[INFO] [stdout] 115 | impl<'a> Env<'a> {
[INFO] [stdout]     | ---------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 187 |     pub fn id(&self) -> EnvId {
[INFO] [stdout]     |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.18s
[INFO] running `Command { std: "docker" "inspect" "8974db79b8f17751aaf9ef8decaa792a261e198e64429f28dcd9fc313cb11204", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8974db79b8f17751aaf9ef8decaa792a261e198e64429f28dcd9fc313cb11204", kill_on_drop: false }`
[INFO] [stdout] 8974db79b8f17751aaf9ef8decaa792a261e198e64429f28dcd9fc313cb11204
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c273de2fd6f1bc4ef2755ce1b3681d64a3889b95a7ba8a340d0afbe968d3ed67
[INFO] running `Command { std: "docker" "start" "-a" "c273de2fd6f1bc4ef2755ce1b3681d64a3889b95a7ba8a340d0afbe968d3ed67", kill_on_drop: false }`
[INFO] [stderr]    Compiling lisp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `any::Any` and `cell::RefCell`
[INFO] [stdout]  --> src/env.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{cell::RefCell, any::Any};
[INFO] [stdout]   |           ^^^^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `String` is never constructed
[INFO] [stdout]   --> src/env.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub enum EnvType<'a> {
[INFO] [stdout]    |          ------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 46 |     String(String),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `EnvType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `parent` are never read
[INFO] [stdout]    --> src/env.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 109 | pub struct Env<'a> {
[INFO] [stdout]     |            --- fields in this struct
[INFO] [stdout] 110 |     id: EnvId,
[INFO] [stdout]     |     ^^
[INFO] [stdout] 111 |     parent: Option<EnvId>,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Env` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `id` is never used
[INFO] [stdout]    --> src/env.rs:187:12
[INFO] [stdout]     |
[INFO] [stdout] 115 | impl<'a> Env<'a> {
[INFO] [stdout]     | ---------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 187 |     pub fn id(&self) -> EnvId {
[INFO] [stdout]     |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "c273de2fd6f1bc4ef2755ce1b3681d64a3889b95a7ba8a340d0afbe968d3ed67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c273de2fd6f1bc4ef2755ce1b3681d64a3889b95a7ba8a340d0afbe968d3ed67", kill_on_drop: false }`
[INFO] [stdout] c273de2fd6f1bc4ef2755ce1b3681d64a3889b95a7ba8a340d0afbe968d3ed67