[INFO] fetching crate graviton_ast 0.6.0...
[INFO] checking graviton_ast-0.6.0 against master#74e80468347471779be6060d8d7d6d04e98e467f for pr-72788
[INFO] extracting crate graviton_ast 0.6.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate graviton_ast 0.6.0 on toolchain 74e80468347471779be6060d8d7d6d04e98e467f
[INFO] running `"/workspace/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate graviton_ast 0.6.0
[INFO] finished tweaking crates.io crate graviton_ast 0.6.0
[INFO] tweaked toml for crates.io crate graviton_ast 0.6.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7ff1cc09fe6587e64ebf9ab0bb00e98e9f65cad6a3b941b70c9feb48c50a4dbf
[INFO] running `"docker" "start" "-a" "7ff1cc09fe6587e64ebf9ab0bb00e98e9f65cad6a3b941b70c9feb48c50a4dbf"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling syn v1.0.30
[INFO] [stderr]    Compiling serde v1.0.111
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]    Compiling serde_derive v1.0.111
[INFO] [stderr]     Checking graviton_core v0.6.0
[INFO] [stderr]     Checking graviton_ast v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/new_ast.rs:58:12
[INFO] [stderr]    |
[INFO] [stderr] 58 |     pub fn new(t: &'a str) -> TypeSignature {
[INFO] [stderr]    |            ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_number`
[INFO] [stderr]   --> src/new_ast.rs:75:12
[INFO] [stderr]    |
[INFO] [stderr] 75 |     pub fn is_number(&self) -> bool {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_bool`
[INFO] [stderr]   --> src/new_ast.rs:84:12
[INFO] [stderr]    |
[INFO] [stderr] 84 |     pub fn is_bool(&self) -> bool {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_nil`
[INFO] [stderr]   --> src/new_ast.rs:93:12
[INFO] [stderr]    |
[INFO] [stderr] 93 |     pub fn is_nil(&self) -> bool {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_signed`
[INFO] [stderr]    --> src/new_ast.rs:102:12
[INFO] [stderr]     |
[INFO] [stderr] 102 |     pub fn is_signed(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_unsigned`
[INFO] [stderr]    --> src/new_ast.rs:114:12
[INFO] [stderr]     |
[INFO] [stderr] 114 |     pub fn is_unsigned(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_function`
[INFO] [stderr]    --> src/new_ast.rs:126:12
[INFO] [stderr]     |
[INFO] [stderr] 126 |     pub fn is_function(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_custom`
[INFO] [stderr]    --> src/new_ast.rs:132:12
[INFO] [stderr]     |
[INFO] [stderr] 132 |     pub fn is_custom(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_integer`
[INFO] [stderr]    --> src/new_ast.rs:138:12
[INFO] [stderr]     |
[INFO] [stderr] 138 |     pub fn is_integer(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_float`
[INFO] [stderr]    --> src/new_ast.rs:154:12
[INFO] [stderr]     |
[INFO] [stderr] 154 |     pub fn is_float(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_8bit`
[INFO] [stderr]    --> src/new_ast.rs:163:12
[INFO] [stderr]     |
[INFO] [stderr] 163 |     pub fn is_8bit(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_16bit`
[INFO] [stderr]    --> src/new_ast.rs:172:12
[INFO] [stderr]     |
[INFO] [stderr] 172 |     pub fn is_16bit(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_32bit`
[INFO] [stderr]    --> src/new_ast.rs:181:12
[INFO] [stderr]     |
[INFO] [stderr] 181 |     pub fn is_32bit(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_64bit`
[INFO] [stderr]    --> src/new_ast.rs:190:12
[INFO] [stderr]     |
[INFO] [stderr] 190 |     pub fn is_64bit(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/new_ast.rs:58:12
[INFO] [stderr]    |
[INFO] [stderr] 58 |     pub fn new(t: &'a str) -> TypeSignature {
[INFO] [stderr]    |            ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_number`
[INFO] [stderr]   --> src/new_ast.rs:75:12
[INFO] [stderr]    |
[INFO] [stderr] 75 |     pub fn is_number(&self) -> bool {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_bool`
[INFO] [stderr]   --> src/new_ast.rs:84:12
[INFO] [stderr]    |
[INFO] [stderr] 84 |     pub fn is_bool(&self) -> bool {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_nil`
[INFO] [stderr]   --> src/new_ast.rs:93:12
[INFO] [stderr]    |
[INFO] [stderr] 93 |     pub fn is_nil(&self) -> bool {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_signed`
[INFO] [stderr]    --> src/new_ast.rs:102:12
[INFO] [stderr]     |
[INFO] [stderr] 102 |     pub fn is_signed(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_unsigned`
[INFO] [stderr]    --> src/new_ast.rs:114:12
[INFO] [stderr]     |
[INFO] [stderr] 114 |     pub fn is_unsigned(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_function`
[INFO] [stderr]    --> src/new_ast.rs:126:12
[INFO] [stderr]     |
[INFO] [stderr] 126 |     pub fn is_function(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_custom`
[INFO] [stderr]    --> src/new_ast.rs:132:12
[INFO] [stderr]     |
[INFO] [stderr] 132 |     pub fn is_custom(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_integer`
[INFO] [stderr]    --> src/new_ast.rs:138:12
[INFO] [stderr]     |
[INFO] [stderr] 138 |     pub fn is_integer(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_float`
[INFO] [stderr]    --> src/new_ast.rs:154:12
[INFO] [stderr]     |
[INFO] [stderr] 154 |     pub fn is_float(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_8bit`
[INFO] [stderr]    --> src/new_ast.rs:163:12
[INFO] [stderr]     |
[INFO] [stderr] 163 |     pub fn is_8bit(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_16bit`
[INFO] [stderr]    --> src/new_ast.rs:172:12
[INFO] [stderr]     |
[INFO] [stderr] 172 |     pub fn is_16bit(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_32bit`
[INFO] [stderr]    --> src/new_ast.rs:181:12
[INFO] [stderr]     |
[INFO] [stderr] 181 |     pub fn is_32bit(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_64bit`
[INFO] [stderr]    --> src/new_ast.rs:190:12
[INFO] [stderr]     |
[INFO] [stderr] 190 |     pub fn is_64bit(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 14 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 14 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 38.53s
[INFO] running `"docker" "inspect" "7ff1cc09fe6587e64ebf9ab0bb00e98e9f65cad6a3b941b70c9feb48c50a4dbf"`
[INFO] running `"docker" "rm" "-f" "7ff1cc09fe6587e64ebf9ab0bb00e98e9f65cad6a3b941b70c9feb48c50a4dbf"`
[INFO] [stdout] 7ff1cc09fe6587e64ebf9ab0bb00e98e9f65cad6a3b941b70c9feb48c50a4dbf