[INFO] cloning repository https://github.com/Johan-Mi/linear_lisp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Johan-Mi/linear_lisp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJohan-Mi%2Flinear_lisp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJohan-Mi%2Flinear_lisp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 38a47175fe43895f85133c22346bedcdba39d665
[INFO] checking Johan-Mi/linear_lisp against master#bbefc9837f4157cc09ed60e6d7b21e345d582dd9 for pr-114571-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJohan-Mi%2Flinear_lisp" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Johan-Mi/linear_lisp on toolchain bbefc9837f4157cc09ed60e6d7b21e345d582dd9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bbefc9837f4157cc09ed60e6d7b21e345d582dd9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Johan-Mi/linear_lisp
[INFO] finished tweaking git repo https://github.com/Johan-Mi/linear_lisp
[INFO] tweaked toml for git repo https://github.com/Johan-Mi/linear_lisp written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Johan-Mi/linear_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" "+bbefc9837f4157cc09ed60e6d7b21e345d582dd9" "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
[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 Johan-Mi/linear_lisp against try#2399cef65c47f346b5fa9df51f48df0acd4a9d85 for pr-114571-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJohan-Mi%2Flinear_lisp" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Johan-Mi/linear_lisp on toolchain 2399cef65c47f346b5fa9df51f48df0acd4a9d85
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2399cef65c47f346b5fa9df51f48df0acd4a9d85" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Johan-Mi/linear_lisp
[INFO] finished tweaking git repo https://github.com/Johan-Mi/linear_lisp
[INFO] tweaked toml for git repo https://github.com/Johan-Mi/linear_lisp written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Johan-Mi/linear_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" "+2399cef65c47f346b5fa9df51f48df0acd4a9d85" "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 syn v1.0.59
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2399cef65c47f346b5fa9df51f48df0acd4a9d85" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2b0b7d6c68fada5c16bc7ce1642004fa2c406f334d37b645c4463ccabab73937
[INFO] running `Command { std: "docker" "start" "-a" "2b0b7d6c68fada5c16bc7ce1642004fa2c406f334d37b645c4463ccabab73937", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b0b7d6c68fada5c16bc7ce1642004fa2c406f334d37b645c4463ccabab73937", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b0b7d6c68fada5c16bc7ce1642004fa2c406f334d37b645c4463ccabab73937", kill_on_drop: false }`
[INFO] [stdout] 2b0b7d6c68fada5c16bc7ce1642004fa2c406f334d37b645c4463ccabab73937
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2399cef65c47f346b5fa9df51f48df0acd4a9d85" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 44971c43b65e1b83c9ca32809236d9017fab4133b204bb088439fb513c8a3044
[INFO] running `Command { std: "docker" "start" "-a" "44971c43b65e1b83c9ca32809236d9017fab4133b204bb088439fb513c8a3044", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.59
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]     Checking thiserror v1.0.23
[INFO] [stderr]     Checking linear_lisp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variants `SwapWithCarAtom`, `SwapWithCdrAtom`, `PopIntoNonNil`, `PopFromAtom`, and `CopyIntoNonNil` are never constructed
[INFO] [stdout]   --> src/error.rs:6:5
[INFO] [stdout]    |
[INFO] [stdout] 4  | pub enum Error {
[INFO] [stdout]    |          ----- variants in this enum
[INFO] [stdout] 5  |     #[error("tried to call swap_with_car() on an Atom")]
[INFO] [stdout] 6  |     SwapWithCarAtom,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 7  |     #[error("tried to call swap_with_cdr() on an Atom")]
[INFO] [stdout] 8  |     SwapWithCdrAtom,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 9  |     #[error("tried to call pop() with a non-Nil value as destination")]
[INFO] [stdout] 10 |     PopIntoNonNil,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 11 |     #[error("tried to call pop() with an Atom as source")]
[INFO] [stdout] 12 |     PopFromAtom,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 13 |     #[error("tried to call copy() with a non-Nil value as destination")]
[INFO] [stdout] 14 |     CopyIntoNonNil,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` has a derived impl for the trait `Debug`, 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 `SwapWithCarAtom`, `SwapWithCdrAtom`, `PopIntoNonNil`, `PopFromAtom`, and `CopyIntoNonNil` are never constructed
[INFO] [stdout]   --> src/error.rs:6:5
[INFO] [stdout]    |
[INFO] [stdout] 4  | pub enum Error {
[INFO] [stdout]    |          ----- variants in this enum
[INFO] [stdout] 5  |     #[error("tried to call swap_with_car() on an Atom")]
[INFO] [stdout] 6  |     SwapWithCarAtom,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 7  |     #[error("tried to call swap_with_cdr() on an Atom")]
[INFO] [stdout] 8  |     SwapWithCdrAtom,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 9  |     #[error("tried to call pop() with a non-Nil value as destination")]
[INFO] [stdout] 10 |     PopIntoNonNil,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 11 |     #[error("tried to call pop() with an Atom as source")]
[INFO] [stdout] 12 |     PopFromAtom,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 13 |     #[error("tried to call copy() with a non-Nil value as destination")]
[INFO] [stdout] 14 |     CopyIntoNonNil,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` has a derived impl for the trait `Debug`, 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: function `swap_with_car` is never used
[INFO] [stdout]  --> src/functions.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn swap_with_car(a: &mut Value, b: &mut Value) -> Result<(), Error> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `swap_with_car` is never used
[INFO] [stdout]  --> src/functions.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn swap_with_car(a: &mut Value, b: &mut Value) -> Result<(), Error> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `swap_with_cdr` is never used
[INFO] [stdout]   --> src/functions.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn swap_with_cdr(a: &mut Value, b: &mut Value) -> Result<(), Error> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `eq` is never used
[INFO] [stdout]   --> src/functions.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn eq(lhs: &Atom, rhs: &Atom) -> bool {
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `swap_with_cdr` is never used
[INFO] [stdout]   --> src/functions.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn swap_with_cdr(a: &mut Value, b: &mut Value) -> Result<(), Error> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `assign` is never used
[INFO] [stdout]   --> src/functions.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn assign(dest: &mut Atom, src: Atom) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `push` is never used
[INFO] [stdout]   --> src/functions.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn push(a: &mut Value, b: &mut Value) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `eq` is never used
[INFO] [stdout]   --> src/functions.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn eq(lhs: &Atom, rhs: &Atom) -> bool {
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `pop` is never used
[INFO] [stdout]   --> src/functions.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub fn pop(a: &mut Value, b: &mut Value) -> Result<(), Error> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `assign` is never used
[INFO] [stdout]   --> src/functions.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn assign(dest: &mut Atom, src: Atom) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `free` is never used
[INFO] [stdout]   --> src/functions.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub fn free(v: &mut Value) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `push` is never used
[INFO] [stdout]   --> src/functions.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn push(a: &mut Value, b: &mut Value) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `copy` is never used
[INFO] [stdout]   --> src/functions.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub fn copy(src: &Value, dest: &mut Value) -> Result<(), Error> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `pop` is never used
[INFO] [stdout]   --> src/functions.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub fn pop(a: &mut Value, b: &mut Value) -> Result<(), Error> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `equal` is never used
[INFO] [stdout]   --> src/functions.rs:68:8
[INFO] [stdout]    |
[INFO] [stdout] 68 | pub fn equal(lhs: &Value, rhs: &Value) -> bool {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `free` is never used
[INFO] [stdout]   --> src/functions.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub fn free(v: &mut Value) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `copy` is never used
[INFO] [stdout]   --> src/functions.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub fn copy(src: &Value, dest: &mut Value) -> Result<(), Error> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Symbol` is never constructed
[INFO] [stdout]   --> src/types.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub enum Atom {
[INFO] [stdout]    |          ---- variant in this enum
[INFO] [stdout] 12 |     Nil,
[INFO] [stdout] 13 |     Symbol(Symbol),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Atom` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `equal` is never used
[INFO] [stdout]   --> src/functions.rs:68:8
[INFO] [stdout]    |
[INFO] [stdout] 68 | pub fn equal(lhs: &Value, rhs: &Value) -> bool {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Cons` is never constructed
[INFO] [stdout]   --> src/types.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub enum Value {
[INFO] [stdout]    |          ----- variant in this enum
[INFO] [stdout] 25 |     Atom(Atom),
[INFO] [stdout] 26 |     Cons(Cons),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Value` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Symbol` is never constructed
[INFO] [stdout]   --> src/types.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub enum Atom {
[INFO] [stdout]    |          ---- variant in this enum
[INFO] [stdout] 12 |     Nil,
[INFO] [stdout] 13 |     Symbol(Symbol),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Atom` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_nil` and `is_atom` are never used
[INFO] [stdout]   --> src/types.rs:37:18
[INFO] [stdout]    |
[INFO] [stdout] 36 | impl Value {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] 37 |     pub const fn is_nil(&self) -> bool {
[INFO] [stdout]    |                  ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 41 |     pub const fn is_atom(&self) -> bool {
[INFO] [stdout]    |                  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Cons` is never constructed
[INFO] [stdout]   --> src/types.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub enum Value {
[INFO] [stdout]    |          ----- variant in this enum
[INFO] [stdout] 25 |     Atom(Atom),
[INFO] [stdout] 26 |     Cons(Cons),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Value` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_nil` and `is_atom` are never used
[INFO] [stdout]   --> src/types.rs:37:18
[INFO] [stdout]    |
[INFO] [stdout] 36 | impl Value {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] 37 |     pub const fn is_nil(&self) -> bool {
[INFO] [stdout]    |                  ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 41 |     pub const fn is_atom(&self) -> bool {
[INFO] [stdout]    |                  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.17s
[INFO] running `Command { std: "docker" "inspect" "44971c43b65e1b83c9ca32809236d9017fab4133b204bb088439fb513c8a3044", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44971c43b65e1b83c9ca32809236d9017fab4133b204bb088439fb513c8a3044", kill_on_drop: false }`
[INFO] [stdout] 44971c43b65e1b83c9ca32809236d9017fab4133b204bb088439fb513c8a3044