[INFO] cloning repository https://github.com/sa2taka/MakeALisp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sa2taka/MakeALisp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsa2taka%2FMakeALisp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsa2taka%2FMakeALisp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ddc387a11c802898acde5168cdd36f467009c3f9
[INFO] checking sa2taka/MakeALisp against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsa2taka%2FMakeALisp" "/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/sa2taka/MakeALisp on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sa2taka/MakeALisp
[INFO] finished tweaking git repo https://github.com/sa2taka/MakeALisp
[INFO] tweaked toml for git repo https://github.com/sa2taka/MakeALisp written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/sa2taka/MakeALisp 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rustyline v9.1.2
[INFO] [stderr]   Downloaded fd-lock v3.0.4
[INFO] [stderr]   Downloaded rustix v0.33.4
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 006393623c0c9f55d7427e53ba82fa488f0234a672813628d2c3e8eefcf5ff8a
[INFO] running `Command { std: "docker" "start" "-a" "006393623c0c9f55d7427e53ba82fa488f0234a672813628d2c3e8eefcf5ff8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "006393623c0c9f55d7427e53ba82fa488f0234a672813628d2c3e8eefcf5ff8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "006393623c0c9f55d7427e53ba82fa488f0234a672813628d2c3e8eefcf5ff8a", kill_on_drop: false }`
[INFO] [stdout] 006393623c0c9f55d7427e53ba82fa488f0234a672813628d2c3e8eefcf5ff8a
[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" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e5b61a550de5abd20010791b0c8879b4dcf27bc3347ca0c26125234d03f22551
[INFO] running `Command { std: "docker" "start" "-a" "e5b61a550de5abd20010791b0c8879b4dcf27bc3347ca0c26125234d03f22551", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.120
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling io-lifetimes v0.5.3
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling rustix v0.33.4
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]     Checking linux-raw-sys v0.0.42
[INFO] [stderr]     Checking endian-type v0.1.2
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking unicode-segmentation v1.9.0
[INFO] [stderr]     Checking utf8parse v0.2.0
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking nibble_vec v0.1.0
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]     Checking radix_trie v0.2.1
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking nix v0.23.1
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking regex v1.5.5
[INFO] [stderr]     Checking fd-lock v3.0.4
[INFO] [stderr]     Checking rustyline v9.1.2
[INFO] [stderr]     Checking rust_mal v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variants `Nil` and `Func` are never constructed
[INFO] [stdout]   --> src/types.rs:12:3
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub enum MalValue {
[INFO] [stdout]    |          -------- variants in this enum
[INFO] [stdout] 12 |   Nil,
[INFO] [stdout]    |   ^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |   Func(Func),
[INFO] [stdout]    |   ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MalValue` 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: methods `apply` and `get_type` are never used
[INFO] [stdout]   --> src/types.rs:35:10
[INFO] [stdout]    |
[INFO] [stdout] 34 | impl MalValue {
[INFO] [stdout]    | ------------- methods in this implementation
[INFO] [stdout] 35 |   pub fn apply(&self, args: Args) -> MalResult {
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 48 |   pub fn get_type(&self) -> &str {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Nil` and `Func` are never constructed
[INFO] [stdout]   --> src/types.rs:12:3
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub enum MalValue {
[INFO] [stdout]    |          -------- variants in this enum
[INFO] [stdout] 12 |   Nil,
[INFO] [stdout]    |   ^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |   Func(Func),
[INFO] [stdout]    |   ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MalValue` 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: methods `apply` and `get_type` are never used
[INFO] [stdout]   --> src/types.rs:35:10
[INFO] [stdout]    |
[INFO] [stdout] 34 | impl MalValue {
[INFO] [stdout]    | ------------- methods in this implementation
[INFO] [stdout] 35 |   pub fn apply(&self, args: Args) -> MalResult {
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 48 |   pub fn get_type(&self) -> &str {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Nil` is never constructed
[INFO] [stdout]   --> src/types.rs:12:3
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub enum MalValue {
[INFO] [stdout]    |          -------- variant in this enum
[INFO] [stdout] 12 |   Nil,
[INFO] [stdout]    |   ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MalValue` 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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Nil` is never constructed
[INFO] [stdout]   --> src/types.rs:12:3
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub enum MalValue {
[INFO] [stdout]    |          -------- variant in this enum
[INFO] [stdout] 12 |   Nil,
[INFO] [stdout]    |   ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MalValue` 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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Nil` is never constructed
[INFO] [stdout]   --> src/types.rs:12:3
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub enum MalValue {
[INFO] [stdout]    |          -------- variant in this enum
[INFO] [stdout] 12 |   Nil,
[INFO] [stdout]    |   ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MalValue` 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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Nil` is never constructed
[INFO] [stdout]   --> src/types.rs:12:3
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub enum MalValue {
[INFO] [stdout]    |          -------- variant in this enum
[INFO] [stdout] 12 |   Nil,
[INFO] [stdout]    |   ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MalValue` 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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.74s
[INFO] running `Command { std: "docker" "inspect" "e5b61a550de5abd20010791b0c8879b4dcf27bc3347ca0c26125234d03f22551", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5b61a550de5abd20010791b0c8879b4dcf27bc3347ca0c26125234d03f22551", kill_on_drop: false }`
[INFO] [stdout] e5b61a550de5abd20010791b0c8879b4dcf27bc3347ca0c26125234d03f22551