[INFO] updating cached repository https://github.com/vanhtuan0409/rust-calculator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 228cde0c72b5491ca8d81ff74928b88ad0f99aa3
[INFO] testing vanhtuan0409/rust-calculator against 1.45.2 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvanhtuan0409%2Frust-calculator" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vanhtuan0409/rust-calculator on toolchain 1.45.2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vanhtuan0409/rust-calculator
[INFO] finished tweaking git repo https://github.com/vanhtuan0409/rust-calculator
[INFO] tweaked toml for git repo https://github.com/vanhtuan0409/rust-calculator written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/vanhtuan0409/rust-calculator already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d74d7bb64dd1d4fd8ddfce3fcc13c69dcd7c7b0f702b7d1e2f56bf66eb66346d
[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" "d74d7bb64dd1d4fd8ddfce3fcc13c69dcd7c7b0f702b7d1e2f56bf66eb66346d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d74d7bb64dd1d4fd8ddfce3fcc13c69dcd7c7b0f702b7d1e2f56bf66eb66346d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d74d7bb64dd1d4fd8ddfce3fcc13c69dcd7c7b0f702b7d1e2f56bf66eb66346d", kill_on_drop: false }`
[INFO] [stdout] d74d7bb64dd1d4fd8ddfce3fcc13c69dcd7c7b0f702b7d1e2f56bf66eb66346d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eaa6a1d5bfedc6af535e62005ba848a181e95df43992b97817c70a59c5a880d5
[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" "eaa6a1d5bfedc6af535e62005ba848a181e95df43992b97817c70a59c5a880d5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust-calculator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum is never used: `Op`
[INFO] [stdout]  --> src/ast.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum Op {
[INFO] [stdout]   |          ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Expression`
[INFO] [stdout]   --> src/ast.rs:10:10
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub enum Expression {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `BinaryExpression`
[INFO] [stdout]   --> src/ast.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct BinaryExpression {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `UnaryExpression`
[INFO] [stdout]   --> src/ast.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct UnaryExpression {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `AstParser`
[INFO] [stdout]   --> src/ast.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub struct AstParser {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `AstParseError`
[INFO] [stdout]   --> src/ast.rs:31:10
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub enum AstParseError {
[INFO] [stdout]    |          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/ast.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn new(tokens: Tokenizer) -> AstParser {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse`
[INFO] [stdout]   --> src/ast.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn parse(&mut self) -> Result<Expression, AstParseError> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.43s
[INFO] running `Command { std: "docker" "inspect" "eaa6a1d5bfedc6af535e62005ba848a181e95df43992b97817c70a59c5a880d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eaa6a1d5bfedc6af535e62005ba848a181e95df43992b97817c70a59c5a880d5", kill_on_drop: false }`
[INFO] [stdout] eaa6a1d5bfedc6af535e62005ba848a181e95df43992b97817c70a59c5a880d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3dac8b8d96053c1680fe988a36dd05dbf8457083b20167a05319904c4fa40df2
[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" "3dac8b8d96053c1680fe988a36dd05dbf8457083b20167a05319904c4fa40df2", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-calculator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum is never used: `Op`
[INFO] [stdout]  --> src/ast.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum Op {
[INFO] [stdout]   |          ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Expression`
[INFO] [stdout]   --> src/ast.rs:10:10
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub enum Expression {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `BinaryExpression`
[INFO] [stdout]   --> src/ast.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct BinaryExpression {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `UnaryExpression`
[INFO] [stdout]   --> src/ast.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct UnaryExpression {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `AstParser`
[INFO] [stdout]   --> src/ast.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub struct AstParser {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `AstParseError`
[INFO] [stdout]   --> src/ast.rs:31:10
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub enum AstParseError {
[INFO] [stdout]    |          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/ast.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn new(tokens: Tokenizer) -> AstParser {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse`
[INFO] [stdout]   --> src/ast.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn parse(&mut self) -> Result<Expression, AstParseError> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "3dac8b8d96053c1680fe988a36dd05dbf8457083b20167a05319904c4fa40df2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3dac8b8d96053c1680fe988a36dd05dbf8457083b20167a05319904c4fa40df2", kill_on_drop: false }`
[INFO] [stdout] 3dac8b8d96053c1680fe988a36dd05dbf8457083b20167a05319904c4fa40df2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8e1b59da01b6642c1ff54d155cdbb9b854d8ed4ce5df324ddf4e6d38f9486db6
[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" "8e1b59da01b6642c1ff54d155cdbb9b854d8ed4ce5df324ddf4e6d38f9486db6", kill_on_drop: false }`
[INFO] [stderr] warning: enum is never used: `Op`
[INFO] [stderr]  --> src/ast.rs:3:10
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub enum Op {
[INFO] [stderr]   |          ^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Expression`
[INFO] [stderr]   --> src/ast.rs:10:10
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub enum Expression {
[INFO] [stderr]    |          ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `BinaryExpression`
[INFO] [stderr]   --> src/ast.rs:16:12
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub struct BinaryExpression {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `UnaryExpression`
[INFO] [stderr]   --> src/ast.rs:22:12
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub struct UnaryExpression {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `AstParser`
[INFO] [stderr]   --> src/ast.rs:27:12
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub struct AstParser {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `AstParseError`
[INFO] [stderr]   --> src/ast.rs:31:10
[INFO] [stderr]    |
[INFO] [stderr] 31 | pub enum AstParseError {
[INFO] [stderr]    |          ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/ast.rs:36:12
[INFO] [stderr]    |
[INFO] [stderr] 36 |     pub fn new(tokens: Tokenizer) -> AstParser {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `parse`
[INFO] [stderr]   --> src/ast.rs:40:12
[INFO] [stderr]    |
[INFO] [stderr] 40 |     pub fn parse(&mut self) -> Result<Expression, AstParseError> {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rust_calculator-fbe6bf724c74694d
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8e1b59da01b6642c1ff54d155cdbb9b854d8ed4ce5df324ddf4e6d38f9486db6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e1b59da01b6642c1ff54d155cdbb9b854d8ed4ce5df324ddf4e6d38f9486db6", kill_on_drop: false }`
[INFO] [stdout] 8e1b59da01b6642c1ff54d155cdbb9b854d8ed4ce5df324ddf4e6d38f9486db6