[INFO] cloning repository https://github.com/imaqtkatt/tree-expr
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/imaqtkatt/tree-expr" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimaqtkatt%2Ftree-expr", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimaqtkatt%2Ftree-expr'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3f792f5b5fbe137522f50ba6736a083adf4569c2
[INFO] testing imaqtkatt/tree-expr against master#0d162b25edd5bf0dba9a22e83b614f1113e90474 for pr-150681-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimaqtkatt%2Ftree-expr" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/imaqtkatt/tree-expr
[INFO] finished tweaking git repo https://github.com/imaqtkatt/tree-expr
[INFO] tweaked toml for git repo https://github.com/imaqtkatt/tree-expr written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/imaqtkatt/tree-expr on toolchain 0d162b25edd5bf0dba9a22e83b614f1113e90474
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/imaqtkatt/tree-expr 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" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "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-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f7aecb1bb49e37e236fdc94bc4ad866ae1e46caf0faea3f80a28d7999fc5fd0d
[INFO] running `Command { std: "docker" "start" "-a" "f7aecb1bb49e37e236fdc94bc4ad866ae1e46caf0faea3f80a28d7999fc5fd0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f7aecb1bb49e37e236fdc94bc4ad866ae1e46caf0faea3f80a28d7999fc5fd0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7aecb1bb49e37e236fdc94bc4ad866ae1e46caf0faea3f80a28d7999fc5fd0d", kill_on_drop: false }`
[INFO] [stdout] f7aecb1bb49e37e236fdc94bc4ad866ae1e46caf0faea3f80a28d7999fc5fd0d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9341c6b9b77ab1b3903ec9d681e816a8ee67d8cbcf6a488d23ee987acf315331
[INFO] running `Command { std: "docker" "start" "-a" "9341c6b9b77ab1b3903ec9d681e816a8ee67d8cbcf6a488d23ee987acf315331", kill_on_drop: false }`
[INFO] [stderr]    Compiling tree-expr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]  --> src/lib.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Rule {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] 5 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Rule` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/lib.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Rule {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] 11 |     fn new(name: impl Into<String>, arguments: u8, variadic: bool) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `open_char` is never used
[INFO] [stdout]   --> src/lib.rs:28:25
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl Delimiter {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] 28 |     pub(crate) const fn open_char(self) -> char {
[INFO] [stdout]    |                         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "9341c6b9b77ab1b3903ec9d681e816a8ee67d8cbcf6a488d23ee987acf315331", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9341c6b9b77ab1b3903ec9d681e816a8ee67d8cbcf6a488d23ee987acf315331", kill_on_drop: false }`
[INFO] [stdout] 9341c6b9b77ab1b3903ec9d681e816a8ee67d8cbcf6a488d23ee987acf315331
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a01b0a0a813ffd20f4734d9eac421bff6b92d5af13f046546b2af12857543a70
[INFO] running `Command { std: "docker" "start" "-a" "a01b0a0a813ffd20f4734d9eac421bff6b92d5af13f046546b2af12857543a70", kill_on_drop: false }`
[INFO] [stderr]    Compiling tree-expr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]  --> src/lib.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Rule {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] 5 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Rule` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/lib.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Rule {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] 11 |     fn new(name: impl Into<String>, arguments: u8, variadic: bool) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `open_char` is never used
[INFO] [stdout]   --> src/lib.rs:28:25
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl Delimiter {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] 28 |     pub(crate) const fn open_char(self) -> char {
[INFO] [stdout]    |                         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]  --> src/lib.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Rule {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] 5 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Rule` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `open_char` is never used
[INFO] [stdout]   --> src/lib.rs:28:25
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl Delimiter {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] 28 |     pub(crate) const fn open_char(self) -> char {
[INFO] [stdout]    |                         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "a01b0a0a813ffd20f4734d9eac421bff6b92d5af13f046546b2af12857543a70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a01b0a0a813ffd20f4734d9eac421bff6b92d5af13f046546b2af12857543a70", kill_on_drop: false }`
[INFO] [stdout] a01b0a0a813ffd20f4734d9eac421bff6b92d5af13f046546b2af12857543a70
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ab7254c9b1b9f4c4f8397590f56e6f27ffcc14cd7328990d21426f46a0d30dcc
[INFO] running `Command { std: "docker" "start" "-a" "ab7254c9b1b9f4c4f8397590f56e6f27ffcc14cd7328990d21426f46a0d30dcc", kill_on_drop: false }`
[INFO] [stderr] warning: field `name` is never read
[INFO] [stderr]  --> src/lib.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct Rule {
[INFO] [stderr]   |            ---- field in this struct
[INFO] [stderr] 5 |     name: String,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `Rule` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> src/lib.rs:11:8
[INFO] [stderr]    |
[INFO] [stderr] 10 | impl Rule {
[INFO] [stderr]    | --------- associated function in this implementation
[INFO] [stderr] 11 |     fn new(name: impl Into<String>, arguments: u8, variadic: bool) -> Self {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `open_char` is never used
[INFO] [stderr]   --> src/lib.rs:28:25
[INFO] [stderr]    |
[INFO] [stderr] 27 | impl Delimiter {
[INFO] [stderr]    | -------------- method in this implementation
[INFO] [stderr] 28 |     pub(crate) const fn open_char(self) -> char {
[INFO] [stderr]    |                         ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `tree-expr` (lib) generated 3 warnings
[INFO] [stderr] warning: `tree-expr` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tree_expr-a25cd98b9c299118)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test::parse_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tree_expr
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ab7254c9b1b9f4c4f8397590f56e6f27ffcc14cd7328990d21426f46a0d30dcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab7254c9b1b9f4c4f8397590f56e6f27ffcc14cd7328990d21426f46a0d30dcc", kill_on_drop: false }`
[INFO] [stdout] ab7254c9b1b9f4c4f8397590f56e6f27ffcc14cd7328990d21426f46a0d30dcc