[INFO] cloning repository https://github.com/yu2ta7ka/RpnCalculator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yu2ta7ka/RpnCalculator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyu2ta7ka%2FRpnCalculator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyu2ta7ka%2FRpnCalculator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4fc189f1dfbf31ab37c00621423c918a7b1e591e
[INFO] testing yu2ta7ka/RpnCalculator against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyu2ta7ka%2FRpnCalculator" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yu2ta7ka/RpnCalculator 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 git repo https://github.com/yu2ta7ka/RpnCalculator
[INFO] finished tweaking git repo https://github.com/yu2ta7ka/RpnCalculator
[INFO] tweaked toml for git repo https://github.com/yu2ta7ka/RpnCalculator written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/yu2ta7ka/RpnCalculator 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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 8da711d6c230c26ecbbcbbd7bd9864d5d8ed8d232ce176a26eb653f1ceecf839
[INFO] running `Command { std: "docker" "start" "-a" "8da711d6c230c26ecbbcbbd7bd9864d5d8ed8d232ce176a26eb653f1ceecf839", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8da711d6c230c26ecbbcbbd7bd9864d5d8ed8d232ce176a26eb653f1ceecf839", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8da711d6c230c26ecbbcbbd7bd9864d5d8ed8d232ce176a26eb653f1ceecf839", kill_on_drop: false }`
[INFO] [stdout] 8da711d6c230c26ecbbcbbd7bd9864d5d8ed8d232ce176a26eb653f1ceecf839
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 54870d6af4e66bd73e0a7572b1377132f5b5b1de98476babc41da3b333d03f73
[INFO] running `Command { std: "docker" "start" "-a" "54870d6af4e66bd73e0a7572b1377132f5b5b1de98476babc41da3b333d03f73", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling thiserror v1.0.24
[INFO] [stderr]    Compiling clap v3.0.0-beta.2
[INFO] [stderr]    Compiling samplecli v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.76s
[INFO] running `Command { std: "docker" "inspect" "54870d6af4e66bd73e0a7572b1377132f5b5b1de98476babc41da3b333d03f73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54870d6af4e66bd73e0a7572b1377132f5b5b1de98476babc41da3b333d03f73", kill_on_drop: false }`
[INFO] [stdout] 54870d6af4e66bd73e0a7572b1377132f5b5b1de98476babc41da3b333d03f73
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 717fbb5a09741451f32799b94ee6ac11289b490360db15e06a0ac405ca1d79a3
[INFO] running `Command { std: "docker" "start" "-a" "717fbb5a09741451f32799b94ee6ac11289b490360db15e06a0ac405ca1d79a3", kill_on_drop: false }`
[INFO] [stderr]    Compiling samplecli v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: no method named `unwrap` found for reference `&'static str` in the current scope
[INFO] [stdout]    --> src/main.rs:113:38
[INFO] [stdout]     |
[INFO] [stdout] 113 |         assert_eq!(calc.eval("2 3 *".unwrap()), 6);
[INFO] [stdout]     |                                      ^^^^^^ method not found in `&'static str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0369]: binary operation `==` cannot be applied to type `Result<i32, anyhow::Error>`
[INFO] [stdout]    --> src/main.rs:113:9
[INFO] [stdout]     |
[INFO] [stdout] 113 |         assert_eq!(calc.eval("2 3 *".unwrap()), 6);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         Result<i32, anyhow::Error>
[INFO] [stdout]     |         {integer}
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0369, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0369`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `samplecli` due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "717fbb5a09741451f32799b94ee6ac11289b490360db15e06a0ac405ca1d79a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "717fbb5a09741451f32799b94ee6ac11289b490360db15e06a0ac405ca1d79a3", kill_on_drop: false }`
[INFO] [stdout] 717fbb5a09741451f32799b94ee6ac11289b490360db15e06a0ac405ca1d79a3