[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 try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsyusui-s%2Frrr" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/syusui-s/rrr on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "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-4/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" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: the lock file /workspace/builds/worker-4/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2b4a68507ec40180056e76657d1f6f36de5cef30708f5d1b59f4bf31c61b0203
[INFO] running `Command { std: "docker" "start" "-a" "2b4a68507ec40180056e76657d1f6f36de5cef30708f5d1b59f4bf31c61b0203", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b4a68507ec40180056e76657d1f6f36de5cef30708f5d1b59f4bf31c61b0203", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b4a68507ec40180056e76657d1f6f36de5cef30708f5d1b59f4bf31c61b0203", kill_on_drop: false }`
[INFO] [stdout] 2b4a68507ec40180056e76657d1f6f36de5cef30708f5d1b59f4bf31c61b0203
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 816496ef981baf79aeae6610298ef05d1bd6da955cefa797cc491b69cde3eb99
[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" "816496ef981baf79aeae6610298ef05d1bd6da955cefa797cc491b69cde3eb99", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.89
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking nom v3.2.1
[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 4.60s
[INFO] running `Command { std: "docker" "inspect" "816496ef981baf79aeae6610298ef05d1bd6da955cefa797cc491b69cde3eb99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "816496ef981baf79aeae6610298ef05d1bd6da955cefa797cc491b69cde3eb99", kill_on_drop: false }`
[INFO] [stdout] 816496ef981baf79aeae6610298ef05d1bd6da955cefa797cc491b69cde3eb99