[INFO] cloning repository https://github.com/luizlls/nitrine
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/luizlls/nitrine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluizlls%2Fnitrine", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluizlls%2Fnitrine'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8cfddee1c99fcb2d3e6a9d06a753fc91599bf189
[INFO] checking luizlls/nitrine against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluizlls%2Fnitrine" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/luizlls/nitrine on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/luizlls/nitrine
[INFO] finished tweaking git repo https://github.com/luizlls/nitrine
[INFO] tweaked toml for git repo https://github.com/luizlls/nitrine written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/luizlls/nitrine already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6b8b223fed424585c14ee7b9e07dbe9f065619a4b854dc387ac8ca54fec643f4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6b8b223fed424585c14ee7b9e07dbe9f065619a4b854dc387ac8ca54fec643f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6b8b223fed424585c14ee7b9e07dbe9f065619a4b854dc387ac8ca54fec643f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b8b223fed424585c14ee7b9e07dbe9f065619a4b854dc387ac8ca54fec643f4", kill_on_drop: false }`
[INFO] [stdout] 6b8b223fed424585c14ee7b9e07dbe9f065619a4b854dc387ac8ca54fec643f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] faf767c69128cbcf01f59d88c86a52bbbc3fcfa63dba2449e06f84f3416dd3e3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "faf767c69128cbcf01f59d88c86a52bbbc3fcfa63dba2449e06f84f3416dd3e3", kill_on_drop: false }`
[INFO] [stderr]     Checking nitrine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Span`, `Spanned`
[INFO] [stdout]  --> src/ast.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{Span, Spanned};
[INFO] [stdout]   |             ^^^^  ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Span`, `Spanned`
[INFO] [stdout]  --> src/ast.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{Span, Spanned};
[INFO] [stdout]   |             ^^^^  ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `start_term`
[INFO] [stdout]   --> src/parser.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn start_term(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_term`
[INFO] [stdout]   --> src/parser.rs:63:8
[INFO] [stdout]    |
[INFO] [stdout] 63 |     fn parse_term(&mut self) -> Result<Expr> {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_name`
[INFO] [stdout]   --> src/parser.rs:74:8
[INFO] [stdout]    |
[INFO] [stdout] 74 |     fn parse_name(&mut self) -> Result<Name> {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_number`
[INFO] [stdout]   --> src/parser.rs:81:8
[INFO] [stdout]    |
[INFO] [stdout] 81 |     fn parse_number(&mut self) -> Result<Expr> {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_string`
[INFO] [stdout]   --> src/parser.rs:88:8
[INFO] [stdout]    |
[INFO] [stdout] 88 |     fn parse_string(&mut self) -> Result<Expr> {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_apply`
[INFO] [stdout]   --> src/parser.rs:95:8
[INFO] [stdout]    |
[INFO] [stdout] 95 |     fn parse_apply(&mut self) -> Result<Expr> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_values`
[INFO] [stdout]    --> src/parser.rs:121:8
[INFO] [stdout]     |
[INFO] [stdout] 121 |     fn parse_values(&mut self) -> Result<Vec<Expr>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_operator`
[INFO] [stdout]    --> src/parser.rs:125:8
[INFO] [stdout]     |
[INFO] [stdout] 125 |     fn parse_operator(&self) -> Result<Operator> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_while`
[INFO] [stdout]    --> src/parser.rs:151:8
[INFO] [stdout]     |
[INFO] [stdout] 151 |     fn parse_while<T, F, P>(&mut self, mut f: F, pred: P)
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `eat`
[INFO] [stdout]    --> src/parser.rs:183:8
[INFO] [stdout]     |
[INFO] [stdout] 183 |     fn eat(&mut self, kind: TokenKind) -> Result<Span> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `maybe_eat`
[INFO] [stdout]    --> src/parser.rs:197:8
[INFO] [stdout]     |
[INFO] [stdout] 197 |     fn maybe_eat(&mut self, kind: TokenKind) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `match_token`
[INFO] [stdout]    --> src/parser.rs:206:8
[INFO] [stdout]     |
[INFO] [stdout] 206 |     fn match_token(&self, kind: TokenKind) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `match_lines`
[INFO] [stdout]    --> src/parser.rs:210:8
[INFO] [stdout]     |
[INFO] [stdout] 210 |     fn match_lines(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `span`
[INFO] [stdout]    --> src/parser.rs:214:8
[INFO] [stdout]     |
[INFO] [stdout] 214 |     fn span(&self, start: &impl Spanned, end: &impl Spanned) -> Span {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `start_term`
[INFO] [stdout]   --> src/parser.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn start_term(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_term`
[INFO] [stdout]   --> src/parser.rs:63:8
[INFO] [stdout]    |
[INFO] [stdout] 63 |     fn parse_term(&mut self) -> Result<Expr> {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_name`
[INFO] [stdout]   --> src/parser.rs:74:8
[INFO] [stdout]    |
[INFO] [stdout] 74 |     fn parse_name(&mut self) -> Result<Name> {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_number`
[INFO] [stdout]   --> src/parser.rs:81:8
[INFO] [stdout]    |
[INFO] [stdout] 81 |     fn parse_number(&mut self) -> Result<Expr> {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_string`
[INFO] [stdout]   --> src/parser.rs:88:8
[INFO] [stdout]    |
[INFO] [stdout] 88 |     fn parse_string(&mut self) -> Result<Expr> {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_apply`
[INFO] [stdout]   --> src/parser.rs:95:8
[INFO] [stdout]    |
[INFO] [stdout] 95 |     fn parse_apply(&mut self) -> Result<Expr> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_values`
[INFO] [stdout]    --> src/parser.rs:121:8
[INFO] [stdout]     |
[INFO] [stdout] 121 |     fn parse_values(&mut self) -> Result<Vec<Expr>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_operator`
[INFO] [stdout]    --> src/parser.rs:125:8
[INFO] [stdout]     |
[INFO] [stdout] 125 |     fn parse_operator(&self) -> Result<Operator> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_while`
[INFO] [stdout]    --> src/parser.rs:151:8
[INFO] [stdout]     |
[INFO] [stdout] 151 |     fn parse_while<T, F, P>(&mut self, mut f: F, pred: P)
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `eat`
[INFO] [stdout]    --> src/parser.rs:183:8
[INFO] [stdout]     |
[INFO] [stdout] 183 |     fn eat(&mut self, kind: TokenKind) -> Result<Span> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `maybe_eat`
[INFO] [stdout]    --> src/parser.rs:197:8
[INFO] [stdout]     |
[INFO] [stdout] 197 |     fn maybe_eat(&mut self, kind: TokenKind) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `match_token`
[INFO] [stdout]    --> src/parser.rs:206:8
[INFO] [stdout]     |
[INFO] [stdout] 206 |     fn match_token(&self, kind: TokenKind) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `match_lines`
[INFO] [stdout]    --> src/parser.rs:210:8
[INFO] [stdout]     |
[INFO] [stdout] 210 |     fn match_lines(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `span`
[INFO] [stdout]    --> src/parser.rs:214:8
[INFO] [stdout]     |
[INFO] [stdout] 214 |     fn span(&self, start: &impl Spanned, end: &impl Spanned) -> Span {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.16s
[INFO] running `Command { std: "docker" "inspect" "faf767c69128cbcf01f59d88c86a52bbbc3fcfa63dba2449e06f84f3416dd3e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "faf767c69128cbcf01f59d88c86a52bbbc3fcfa63dba2449e06f84f3416dd3e3", kill_on_drop: false }`
[INFO] [stdout] faf767c69128cbcf01f59d88c86a52bbbc3fcfa63dba2449e06f84f3416dd3e3