[INFO] cloning repository https://github.com/xxf1996/lang-code
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xxf1996/lang-code" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxxf1996%2Flang-code", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxxf1996%2Flang-code'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9b72951438f100910414f0764d6f2c31d6c5b85c
[INFO] testing xxf1996/lang-code against 1.78.0 for beta-1.79-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxxf1996%2Flang-code" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/xxf1996/lang-code on toolchain 1.78.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.78.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/xxf1996/lang-code
[INFO] removed 0 missing examples
[INFO] finished tweaking git repo https://github.com/xxf1996/lang-code
[INFO] tweaked toml for git repo https://github.com/xxf1996/lang-code written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/xxf1996/lang-code 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" "+1.78.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+1.78.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 948beae6c4a309360f8495eecce7aad2e4bf85cf70b5f0b67436e11e3ad75fe2
[INFO] running `Command { std: "docker" "start" "-a" "948beae6c4a309360f8495eecce7aad2e4bf85cf70b5f0b67436e11e3ad75fe2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "948beae6c4a309360f8495eecce7aad2e4bf85cf70b5f0b67436e11e3ad75fe2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "948beae6c4a309360f8495eecce7aad2e4bf85cf70b5f0b67436e11e3ad75fe2", kill_on_drop: false }`
[INFO] [stdout] 948beae6c4a309360f8495eecce7aad2e4bf85cf70b5f0b67436e11e3ad75fe2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+1.78.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d0a3d3e552b04d2083dfc548984a8caba1282a0bc0faaf3b519e6055deca1dce
[INFO] running `Command { std: "docker" "start" "-a" "d0a3d3e552b04d2083dfc548984a8caba1282a0bc0faaf3b519e6055deca1dce", kill_on_drop: false }`
[INFO] [stderr]    Compiling lang-code v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "d0a3d3e552b04d2083dfc548984a8caba1282a0bc0faaf3b519e6055deca1dce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0a3d3e552b04d2083dfc548984a8caba1282a0bc0faaf3b519e6055deca1dce", kill_on_drop: false }`
[INFO] [stdout] d0a3d3e552b04d2083dfc548984a8caba1282a0bc0faaf3b519e6055deca1dce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+1.78.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 330b221db480a58ac6d3ab9486a18b9f43d557e9cd4a8dcd3dd38b6b8eb3b905
[INFO] running `Command { std: "docker" "start" "-a" "330b221db480a58ac6d3ab9486a18b9f43d557e9cd4a8dcd3dd38b6b8eb3b905", kill_on_drop: false }`
[INFO] [stderr]    Compiling lang-code v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type alias `Env` is never used
[INFO] [stdout]   --> examples/tiny-lang-1-and-2.rs:31:6
[INFO] [stdout]    |
[INFO] [stdout] 31 | type Env = Vec<(String, i32)>;
[INFO] [stdout]    |      ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Env` is never used
[INFO] [stdout]   --> examples/tiny-lang-1-and-2.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 46 |   pub type Env = Vec<i32>;
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.11s
[INFO] running `Command { std: "docker" "inspect" "330b221db480a58ac6d3ab9486a18b9f43d557e9cd4a8dcd3dd38b6b8eb3b905", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "330b221db480a58ac6d3ab9486a18b9f43d557e9cd4a8dcd3dd38b6b8eb3b905", kill_on_drop: false }`
[INFO] [stdout] 330b221db480a58ac6d3ab9486a18b9f43d557e9cd4a8dcd3dd38b6b8eb3b905
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+1.78.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] def3ef2ed7839ebffc289ceabeb4ba2e7059588ac1b12cd9d7b5959edbfbf329
[INFO] running `Command { std: "docker" "start" "-a" "def3ef2ed7839ebffc289ceabeb4ba2e7059588ac1b12cd9d7b5959edbfbf329", kill_on_drop: false }`
[INFO] [stderr] warning: type alias `Env` is never used
[INFO] [stderr]   --> examples/tiny-lang-1-and-2.rs:31:6
[INFO] [stderr]    |
[INFO] [stderr] 31 | type Env = Vec<(String, i32)>;
[INFO] [stderr]    |      ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias `Env` is never used
[INFO] [stderr]   --> examples/tiny-lang-1-and-2.rs:46:12
[INFO] [stderr]    |
[INFO] [stderr] 46 |   pub type Env = Vec<i32>;
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `lang-code` (example "tiny-lang-1-and-2") generated 2 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/lang_code-a0e20890fcde3fea)
[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" "def3ef2ed7839ebffc289ceabeb4ba2e7059588ac1b12cd9d7b5959edbfbf329", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "def3ef2ed7839ebffc289ceabeb4ba2e7059588ac1b12cd9d7b5959edbfbf329", kill_on_drop: false }`
[INFO] [stdout] def3ef2ed7839ebffc289ceabeb4ba2e7059588ac1b12cd9d7b5959edbfbf329