[INFO] cloning repository https://github.com/JonathanArns/skim-lisp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JonathanArns/skim-lisp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJonathanArns%2Fskim-lisp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJonathanArns%2Fskim-lisp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 425f7772ad3ea2f1a55a8bb95bdce7b268168396
[INFO] building JonathanArns/skim-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%2FJonathanArns%2Fskim-lisp" "/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/JonathanArns/skim-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/JonathanArns/skim-lisp
[INFO] finished tweaking git repo https://github.com/JonathanArns/skim-lisp
[INFO] tweaked toml for git repo https://github.com/JonathanArns/skim-lisp written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/JonathanArns/skim-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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded dirs-sys-next v0.1.0
[INFO] [stderr]   Downloaded dirs-next v1.0.1
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 16980ae75185682904f5fc35e794fba7846dad31932d532c4881126eec953889
[INFO] running `Command { std: "docker" "start" "-a" "16980ae75185682904f5fc35e794fba7846dad31932d532c4881126eec953889", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "16980ae75185682904f5fc35e794fba7846dad31932d532c4881126eec953889", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16980ae75185682904f5fc35e794fba7846dad31932d532c4881126eec953889", kill_on_drop: false }`
[INFO] [stdout] 16980ae75185682904f5fc35e794fba7846dad31932d532c4881126eec953889
[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 -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] 20372e07fb96875679c541ab56e13c8441559d27e69d99a9705895309cd31885
[INFO] running `Command { std: "docker" "start" "-a" "20372e07fb96875679c541ab56e13c8441559d27e69d99a9705895309cd31885", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling utf8parse v0.2.0
[INFO] [stderr]    Compiling dirs-sys-next v0.1.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling dirs-next v1.0.1
[INFO] [stderr]    Compiling rustyline v6.3.0
[INFO] [stderr]    Compiling skim-lisp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `AtLeast` is never constructed
[INFO] [stdout]   --> src/Exception.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub enum Arity {
[INFO] [stdout]    |          ----- variant in this enum
[INFO] [stdout] 15 |     Exact(usize),
[INFO] [stdout] 16 |     AtLeast(usize),
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Arity` 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: variants `Char`, `String`, and `Vector` are never constructed
[INFO] [stdout]   --> src/ast.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub enum Exp {
[INFO] [stdout]    |          --- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 25 |     Char(char),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 26 |     Symbol(String),
[INFO] [stdout] 27 |     String(String),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 28 |     Vector(Vec<Exp>),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Exp` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Exception` should have a snake case name
[INFO] [stdout]  --> src/lib.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub(crate) mod Exception;
[INFO] [stdout]   |                ^^^^^^^^^ help: convert the identifier to snake case: `exception`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.56s
[INFO] running `Command { std: "docker" "inspect" "20372e07fb96875679c541ab56e13c8441559d27e69d99a9705895309cd31885", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20372e07fb96875679c541ab56e13c8441559d27e69d99a9705895309cd31885", kill_on_drop: false }`
[INFO] [stdout] 20372e07fb96875679c541ab56e13c8441559d27e69d99a9705895309cd31885
[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 -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] e946278ba82150e51de1c2b2ccb4c6b41f1fdde7c2aac46dc5d6cfc1ae6f41a4
[INFO] running `Command { std: "docker" "start" "-a" "e946278ba82150e51de1c2b2ccb4c6b41f1fdde7c2aac46dc5d6cfc1ae6f41a4", kill_on_drop: false }`
[INFO] [stdout] warning: variant `AtLeast` is never constructed
[INFO] [stdout]   --> src/Exception.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub enum Arity {
[INFO] [stdout]    |          ----- variant in this enum
[INFO] [stdout] 15 |     Exact(usize),
[INFO] [stdout] 16 |     AtLeast(usize),
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Arity` 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: variants `Char`, `String`, and `Vector` are never constructed
[INFO] [stdout]   --> src/ast.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub enum Exp {
[INFO] [stdout]    |          --- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 25 |     Char(char),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 26 |     Symbol(String),
[INFO] [stdout] 27 |     String(String),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 28 |     Vector(Vec<Exp>),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Exp` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling skim-lisp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: module `Exception` should have a snake case name
[INFO] [stdout]  --> src/lib.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub(crate) mod Exception;
[INFO] [stdout]   |                ^^^^^^^^^ help: convert the identifier to snake case: `exception`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `AtLeast` is never constructed
[INFO] [stdout]   --> src/Exception.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub enum Arity {
[INFO] [stdout]    |          ----- variant in this enum
[INFO] [stdout] 15 |     Exact(usize),
[INFO] [stdout] 16 |     AtLeast(usize),
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Arity` 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: variants `Char`, `String`, and `Vector` are never constructed
[INFO] [stdout]   --> src/ast.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub enum Exp {
[INFO] [stdout]    |          --- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 25 |     Char(char),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 26 |     Symbol(String),
[INFO] [stdout] 27 |     String(String),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 28 |     Vector(Vec<Exp>),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Exp` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Exception` should have a snake case name
[INFO] [stdout]  --> src/lib.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub(crate) mod Exception;
[INFO] [stdout]   |                ^^^^^^^^^ help: convert the identifier to snake case: `exception`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "e946278ba82150e51de1c2b2ccb4c6b41f1fdde7c2aac46dc5d6cfc1ae6f41a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e946278ba82150e51de1c2b2ccb4c6b41f1fdde7c2aac46dc5d6cfc1ae6f41a4", kill_on_drop: false }`
[INFO] [stdout] e946278ba82150e51de1c2b2ccb4c6b41f1fdde7c2aac46dc5d6cfc1ae6f41a4