[INFO] fetching crate expresso 0.2.3...
[INFO] testing expresso-0.2.3 against 1.55.0 for beta-1.56-1
[INFO] extracting crate expresso 0.2.3 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate expresso 0.2.3 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate expresso 0.2.3
[INFO] finished tweaking crates.io crate expresso 0.2.3
[INFO] tweaked toml for crates.io crate expresso 0.2.3 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate expresso 0.2.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 74ea41f8224ab0e49c2c2bdb56e21f7c796cc4b83b21bf49d349577514227073
[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" "74ea41f8224ab0e49c2c2bdb56e21f7c796cc4b83b21bf49d349577514227073", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74ea41f8224ab0e49c2c2bdb56e21f7c796cc4b83b21bf49d349577514227073", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74ea41f8224ab0e49c2c2bdb56e21f7c796cc4b83b21bf49d349577514227073", kill_on_drop: false }`
[INFO] [stdout] 74ea41f8224ab0e49c2c2bdb56e21f7c796cc4b83b21bf49d349577514227073
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d0769330481af896a4e2d5fddf1e7e26ba703e9175c924e5a9a951fe2de8899a
[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" "d0769330481af896a4e2d5fddf1e7e26ba703e9175c924e5a9a951fe2de8899a", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]    Compiling dtoa v0.4.7
[INFO] [stderr]    Compiling serde_yaml v0.8.17
[INFO] [stderr]    Compiling expresso v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::tokenizer::Token`
[INFO] [stdout]  --> src/expression.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::tokenizer::Token;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::variable_storage::VariableStorage`
[INFO] [stdout]  --> src/expression.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::variable_storage::VariableStorage;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `OPERATORS`
[INFO] [stdout]  --> src/instructions.rs:2:32
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::operator::{Operator,OPERATORS};
[INFO] [stdout]   |                                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::tokenizer::Token`
[INFO] [stdout]  --> src/variable_stack.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::tokenizer::Token;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]  --> src/variable_storage.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::fs::File;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `expresso::variable_storage::VariableStorage`
[INFO] [stdout]  --> src/expresso_main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use expresso::variable_storage::VariableStorage;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/expresso_main.rs:73:7
[INFO] [stdout]    |
[INFO] [stdout] 72 |                         todo!("setVar( {:?}, {:?} )", n, v );
[INFO] [stdout]    |                         ------------------------------------- any code following this expression is unreachable
[INFO] [stdout] 73 |                         false
[INFO] [stdout]    |                         ^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/expresso_main.rs:37:3
[INFO] [stdout]    |
[INFO] [stdout] 37 |         machine.load_variable_storage( variable_filename );
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/expresso_main.rs:81:3
[INFO] [stdout]    |
[INFO] [stdout] 81 |         expression.from_str( &argument );
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.49s
[INFO] running `Command { std: "docker" "inspect" "d0769330481af896a4e2d5fddf1e7e26ba703e9175c924e5a9a951fe2de8899a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0769330481af896a4e2d5fddf1e7e26ba703e9175c924e5a9a951fe2de8899a", kill_on_drop: false }`
[INFO] [stdout] d0769330481af896a4e2d5fddf1e7e26ba703e9175c924e5a9a951fe2de8899a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 28a71610d4f0bd063269f9d4a7dd7b56695b26986eb170bfc940b20cf85a33ca
[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" "28a71610d4f0bd063269f9d4a7dd7b56695b26986eb170bfc940b20cf85a33ca", kill_on_drop: false }`
[INFO] [stderr]    Compiling expresso v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::tokenizer::Token`
[INFO] [stdout]  --> src/expression.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::tokenizer::Token;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::variable_storage::VariableStorage`
[INFO] [stdout]  --> src/expression.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::variable_storage::VariableStorage;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `OPERATORS`
[INFO] [stdout]  --> src/instructions.rs:2:32
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::operator::{Operator,OPERATORS};
[INFO] [stdout]   |                                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::tokenizer::Token`
[INFO] [stdout]  --> src/variable_stack.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::tokenizer::Token;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]  --> src/variable_storage.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::fs::File;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `expresso::variable_storage::VariableStorage`
[INFO] [stdout]  --> src/expresso_main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use expresso::variable_storage::VariableStorage;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/expresso_main.rs:73:7
[INFO] [stdout]    |
[INFO] [stdout] 72 |                         todo!("setVar( {:?}, {:?} )", n, v );
[INFO] [stdout]    |                         ------------------------------------- any code following this expression is unreachable
[INFO] [stdout] 73 |                         false
[INFO] [stdout]    |                         ^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/expresso_main.rs:37:3
[INFO] [stdout]    |
[INFO] [stdout] 37 |         machine.load_variable_storage( variable_filename );
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/expresso_main.rs:81:3
[INFO] [stdout]    |
[INFO] [stdout] 81 |         expression.from_str( &argument );
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::tokenizer::Token`
[INFO] [stdout]  --> src/expression.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::tokenizer::Token;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::variable_storage::VariableStorage`
[INFO] [stdout]  --> src/expression.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::variable_storage::VariableStorage;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `OPERATORS`
[INFO] [stdout]  --> src/instructions.rs:2:32
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::operator::{Operator,OPERATORS};
[INFO] [stdout]   |                                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::tokenizer::Token`
[INFO] [stdout]  --> src/variable_stack.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::tokenizer::Token;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]  --> src/variable_storage.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::fs::File;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::variable_storage::VariableStorage`
[INFO] [stdout]   --> src/tests.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use super::variable_storage::VariableStorage;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tests.rs:425:2
[INFO] [stdout]     |
[INFO] [stdout] 425 |     expression.from_str( "1+2" );
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tests.rs:432:2
[INFO] [stdout]     |
[INFO] [stdout] 432 |     expression.from_str( "1+2" );
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tests.rs:435:2
[INFO] [stdout]     |
[INFO] [stdout] 435 |     expression.from_str( "1+" );
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tests.rs:443:2
[INFO] [stdout]     |
[INFO] [stdout] 443 |     expression.from_str( "(1+2*5+9-10)/(4-2)" );
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tests.rs:451:2
[INFO] [stdout]     |
[INFO] [stdout] 451 |     expression.from_str( "fun3(1,2,3)" );
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tests.rs:462:2
[INFO] [stdout]     |
[INFO] [stdout] 462 |     expression.from_str( "" );
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tests.rs:470:2
[INFO] [stdout]     |
[INFO] [stdout] 470 |     expression.from_str( "1 +" );
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tests.rs:473:2
[INFO] [stdout]     |
[INFO] [stdout] 473 |     expression.from_str( "1 1 1 +" );
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.09s
[INFO] running `Command { std: "docker" "inspect" "28a71610d4f0bd063269f9d4a7dd7b56695b26986eb170bfc940b20cf85a33ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28a71610d4f0bd063269f9d4a7dd7b56695b26986eb170bfc940b20cf85a33ca", kill_on_drop: false }`
[INFO] [stdout] 28a71610d4f0bd063269f9d4a7dd7b56695b26986eb170bfc940b20cf85a33ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 564113e730e7e1c40eb4811955607fcb6455a2d225e964b217d10f47c93c392f
[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" "564113e730e7e1c40eb4811955607fcb6455a2d225e964b217d10f47c93c392f", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `crate::tokenizer::Token`
[INFO] [stderr]  --> src/expression.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use crate::tokenizer::Token;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::variable_storage::VariableStorage`
[INFO] [stderr]  --> src/expression.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use crate::variable_storage::VariableStorage;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `OPERATORS`
[INFO] [stderr]  --> src/instructions.rs:2:32
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::operator::{Operator,OPERATORS};
[INFO] [stderr]   |                                ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::tokenizer::Token`
[INFO] [stderr]  --> src/variable_stack.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::tokenizer::Token;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]  --> src/variable_storage.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::fs::File;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::variable_storage::VariableStorage`
[INFO] [stderr]   --> src/tests.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use super::variable_storage::VariableStorage;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/tests.rs:425:2
[INFO] [stderr]     |
[INFO] [stderr] 425 |     expression.from_str( "1+2" );
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/tests.rs:432:2
[INFO] [stderr]     |
[INFO] [stderr] 432 |     expression.from_str( "1+2" );
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/tests.rs:435:2
[INFO] [stderr]     |
[INFO] [stderr] 435 |     expression.from_str( "1+" );
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/tests.rs:443:2
[INFO] [stderr]     |
[INFO] [stderr] 443 |     expression.from_str( "(1+2*5+9-10)/(4-2)" );
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/tests.rs:451:2
[INFO] [stderr]     |
[INFO] [stderr] 451 |     expression.from_str( "fun3(1,2,3)" );
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/tests.rs:462:2
[INFO] [stderr]     |
[INFO] [stderr] 462 |     expression.from_str( "" );
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/tests.rs:470:2
[INFO] [stderr]     |
[INFO] [stderr] 470 |     expression.from_str( "1 +" );
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/tests.rs:473:2
[INFO] [stderr]     |
[INFO] [stderr] 473 |     expression.from_str( "1 1 1 +" );
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: `expresso` (lib) generated 5 warnings
[INFO] [stderr] warning: `expresso` (lib test) generated 14 warnings (5 duplicates)
[INFO] [stderr] warning: unused import: `expresso::variable_storage::VariableStorage`
[INFO] [stderr]  --> src/expresso_main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use expresso::variable_storage::VariableStorage;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/expresso_main.rs:73:7
[INFO] [stderr]    |
[INFO] [stderr] 72 |                         todo!("setVar( {:?}, {:?} )", n, v );
[INFO] [stderr]    |                         ------------------------------------- any code following this expression is unreachable
[INFO] [stderr] 73 |                         false
[INFO] [stderr]    |                         ^^^^^ unreachable expression
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/expresso_main.rs:37:3
[INFO] [stderr]    |
[INFO] [stderr] 37 |         machine.load_variable_storage( variable_filename );
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/expresso_main.rs:81:3
[INFO] [stderr]    |
[INFO] [stderr] 81 |         expression.from_str( &argument );
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: `expresso` (bin "expresso" test) generated 4 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/expresso-a7633cf2b03495d6)
[INFO] [stdout] 
[INFO] [stdout] running 37 tests
[INFO] [stdout] test tests::scanner_checks_not_empty ... ok
[INFO] [stdout] test tests::scanner_peeks_and_pops ... ok
[INFO] [stdout] test tests::scanner_checks_empty ... ok
[INFO] [stdout] test tests::scanner_peeks_on_empty ... ok
[INFO] [stdout] test tests::tokenizer_checks_empty ... ok
[INFO] [stdout] test tests::scanner_returns_correct_position ... ok
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] test tests::tokenizer_checks_not_empty ... ok
[INFO] [stdout] test tests::tokenizer_tokenizes_braces ... ok
[INFO] [stdout] test tests::expression_works_complex ... ok
[INFO] [stdout] test tests::tokenizer_tokenizes_float ... ok
[INFO] [stdout] test tests::expression_works ... ok
[INFO] [stdout] test tests::tokenizer_tokenizes_function_call ... ok
[INFO] [stdout] test tests::tokenizer_tokenizes_number ... ok
[INFO] [stdout] test tests::tokenizer_tokenizes_numbers_with_leading_whitespace ... ok
[INFO] [stdout] test tests::expression_validation_works ... ok
[INFO] [stdout] test tests::tokenizer_tokenizes_numbers_with_whitespace ... ok
[INFO] [stdout] test tests::scanner_works_if_the_chat_loves_me ... ok
[INFO] [stdout] test tests::scanner_works_with_braille ... ok
[INFO] [stdout] test tests::tokenizer_tokenizes_simple_expression ... ok
[INFO] [stdout] test tests::tokenizer_tokenizes_string_literal ... ok
[INFO] [stdout] test tests::expression_returns_correct_default_for_invalid_expression ... ok
[INFO] [stdout] test tests::tokenizer_tokenizes_string_literal_empty ... ok
[INFO] [stdout] test tests::tokenizer_tokenizes_variable_without_name ... ok
[INFO] [stdout] test tests::tokenizer_tokenizes_string_literal_empty_unterminated ... ok
[INFO] [stdout] test tests::tokenizer_tokenizes_string_literal_unterminated ... ok
[INFO] [stdout] test tests::variable_stack_works ... ok
[INFO] [stdout] test tests::tokenizer_tokenizes_variable ... ok
[INFO] [stdout] test tests::tokenizer_tokenizes_whitespace_with_error ... ok
[INFO] [stdout] test tests::infix_to_postfix_complex ... ok
[INFO] [stdout] test tests::variable_stack_supports_typed_pop ... ok
[INFO] [stdout] test tests::expression_handles_function_call_list_with_three_elements ... ok
[INFO] [stdout] test tests::infix_to_postfix_simple ... ok
[INFO] [stdout] test tests::infix_to_postfix_simple_braces ... ok
[INFO] [stdout] test tests::infix_to_postfix_simple_mixed_numbers ... ok
[INFO] [stdout] test tests::expression_returns_correct_default ... ok
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/expresso-71689a0f042d4159)
[INFO] [stdout] test tests::variable_stack_panics_on_wrong_type - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 37 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests expresso
[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] [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" "564113e730e7e1c40eb4811955607fcb6455a2d225e964b217d10f47c93c392f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "564113e730e7e1c40eb4811955607fcb6455a2d225e964b217d10f47c93c392f", kill_on_drop: false }`
[INFO] [stdout] 564113e730e7e1c40eb4811955607fcb6455a2d225e964b217d10f47c93c392f