[INFO] cloning repository https://github.com/syusui-s/rrr
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/syusui-s/rrr" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsyusui-s%2Frrr", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsyusui-s%2Frrr'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 26a146124809abc26695729ceebfb240ade0c842
[INFO] checking syusui-s/rrr against master#c5fbcd35a8217a17f6b63a22217ace06cf8f5f02 for pr-86194
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsyusui-s%2Frrr" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/syusui-s/rrr on toolchain c5fbcd35a8217a17f6b63a22217ace06cf8f5f02
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/syusui-s/rrr
[INFO] finished tweaking git repo https://github.com/syusui-s/rrr
[INFO] tweaked toml for git repo https://github.com/syusui-s/rrr written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/syusui-s/rrr already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 717a057821fa60f56579f4a07627e21bf758fae8e157b5c1de0344f3697a19eb
[INFO] running `Command { std: "docker" "start" "-a" "717a057821fa60f56579f4a07627e21bf758fae8e157b5c1de0344f3697a19eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "717a057821fa60f56579f4a07627e21bf758fae8e157b5c1de0344f3697a19eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "717a057821fa60f56579f4a07627e21bf758fae8e157b5c1de0344f3697a19eb", kill_on_drop: false }`
[INFO] [stdout] 717a057821fa60f56579f4a07627e21bf758fae8e157b5c1de0344f3697a19eb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ac8d8b92180c92c10c0b312b1732629d8bda48154dae35c84617c1d0dbb24baa
[INFO] running `Command { std: "docker" "start" "-a" "ac8d8b92180c92c10c0b312b1732629d8bda48154dae35c84617c1d0dbb24baa", kill_on_drop: false }`
[INFO] [stderr]     Checking nom v3.0.0
[INFO] [stderr]     Checking rrr v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Fixnum`
[INFO] [stdout]  --> src/ast.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     Fixnum(i32),
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Literal`
[INFO] [stdout]   --> src/ast.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Literal(Literal),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BinOpTree`
[INFO] [stdout]   --> src/ast.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     BinOpTree(Box<BinOpTree>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_utf8`
[INFO] [stdout]   --> src/ast.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn from_utf8(ary: &[u8]) -> Result<Self, &str> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_str`
[INFO] [stdout]   --> src/ast.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn from_str(input: &str) -> Result<Self, &str> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_literal`
[INFO] [stdout]  --> src/parser.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn print_literal(lit: &Literal) {
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_term`
[INFO] [stdout]   --> src/parser.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn print_term(term: &Term) {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_optree`
[INFO] [stdout]   --> src/parser.rs:28:4
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn print_optree<'a>(tree: &'a BinOpTree) {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_literal`
[INFO] [stdout]  --> src/parser.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn print_literal(lit: &Literal) {
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_term`
[INFO] [stdout]   --> src/parser.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn print_term(term: &Term) {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_optree`
[INFO] [stdout]   --> src/parser.rs:28:4
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn print_optree<'a>(tree: &'a BinOpTree) {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.65s
[INFO] running `Command { std: "docker" "inspect" "ac8d8b92180c92c10c0b312b1732629d8bda48154dae35c84617c1d0dbb24baa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac8d8b92180c92c10c0b312b1732629d8bda48154dae35c84617c1d0dbb24baa", kill_on_drop: false }`
[INFO] [stdout] ac8d8b92180c92c10c0b312b1732629d8bda48154dae35c84617c1d0dbb24baa