[INFO] cloning repository https://github.com/andrematheus/programming-praxis-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/andrematheus/programming-praxis-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandrematheus%2Fprogramming-praxis-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandrematheus%2Fprogramming-praxis-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 000d331077581d8f1e6cd4ee7245b948ceeeb31b
[INFO] testing andrematheus/programming-praxis-rust against 1.47.0 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandrematheus%2Fprogramming-praxis-rust" "/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/andrematheus/programming-praxis-rust on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/andrematheus/programming-praxis-rust
[INFO] finished tweaking git repo https://github.com/andrematheus/programming-praxis-rust
[INFO] tweaked toml for git repo https://github.com/andrematheus/programming-praxis-rust written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/andrematheus/programming-praxis-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "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" "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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f1be7467c837cdcdf80b9756fa97f16ae64b5aecdeac4132b5402a3dd0762b89
[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" "f1be7467c837cdcdf80b9756fa97f16ae64b5aecdeac4132b5402a3dd0762b89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f1be7467c837cdcdf80b9756fa97f16ae64b5aecdeac4132b5402a3dd0762b89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1be7467c837cdcdf80b9756fa97f16ae64b5aecdeac4132b5402a3dd0762b89", kill_on_drop: false }`
[INFO] [stdout] f1be7467c837cdcdf80b9756fa97f16ae64b5aecdeac4132b5402a3dd0762b89
[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" "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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dad4bdcdc158e403b0dc61b916f1afe67f16d48a433ba4704bc87d438bef7e69
[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" "dad4bdcdc158e403b0dc61b916f1afe67f16d48a433ba4704bc87d438bef7e69", kill_on_drop: false }`
[INFO] [stderr]    Compiling pprust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/rpncalculator.rs:97:15
[INFO] [stdout]     |
[INFO] [stdout] 97  |             )*;
[INFO] [stdout]     |               ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 137 |     new_operator!(ops, "+", [y, x], { x + y });
[INFO] [stdout]     |     ------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/rpncalculator.rs:97:15
[INFO] [stdout]     |
[INFO] [stdout] 97  |             )*;
[INFO] [stdout]     |               ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 138 |     new_operator!(ops, "-", [y, x], { x - y });
[INFO] [stdout]     |     ------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/rpncalculator.rs:97:15
[INFO] [stdout]     |
[INFO] [stdout] 97  |             )*;
[INFO] [stdout]     |               ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 139 |     new_operator!(ops, "*", [y, x], { x * y });
[INFO] [stdout]     |     ------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/rpncalculator.rs:97:15
[INFO] [stdout]     |
[INFO] [stdout] 97  |             )*;
[INFO] [stdout]     |               ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 140 |     new_operator!(ops, "/", [y, x], { x / y });
[INFO] [stdout]     |     ------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.94s
[INFO] running `Command { std: "docker" "inspect" "dad4bdcdc158e403b0dc61b916f1afe67f16d48a433ba4704bc87d438bef7e69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dad4bdcdc158e403b0dc61b916f1afe67f16d48a433ba4704bc87d438bef7e69", kill_on_drop: false }`
[INFO] [stdout] dad4bdcdc158e403b0dc61b916f1afe67f16d48a433ba4704bc87d438bef7e69
[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" "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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0d12a2e80add4ae4aad1c5053276fd046b4eb4c6f24bad456f801bdf0405ef1f
[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" "0d12a2e80add4ae4aad1c5053276fd046b4eb4c6f24bad456f801bdf0405ef1f", kill_on_drop: false }`
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/rpncalculator.rs:97:15
[INFO] [stdout]     |
[INFO] [stdout] 97  |             )*;
[INFO] [stdout]     |               ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 137 |     new_operator!(ops, "+", [y, x], { x + y });
[INFO] [stdout]     |     ------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling pprust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/rpncalculator.rs:97:15
[INFO] [stdout]     |
[INFO] [stdout] 97  |             )*;
[INFO] [stdout]     |               ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 138 |     new_operator!(ops, "-", [y, x], { x - y });
[INFO] [stdout]     |     ------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/rpncalculator.rs:97:15
[INFO] [stdout]     |
[INFO] [stdout] 97  |             )*;
[INFO] [stdout]     |               ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 139 |     new_operator!(ops, "*", [y, x], { x * y });
[INFO] [stdout]     |     ------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/rpncalculator.rs:97:15
[INFO] [stdout]     |
[INFO] [stdout] 97  |             )*;
[INFO] [stdout]     |               ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 140 |     new_operator!(ops, "/", [y, x], { x / y });
[INFO] [stdout]     |     ------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/rpncalculator.rs:97:15
[INFO] [stdout]     |
[INFO] [stdout] 97  |             )*;
[INFO] [stdout]     |               ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 137 |     new_operator!(ops, "+", [y, x], { x + y });
[INFO] [stdout]     |     ------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/rpncalculator.rs:97:15
[INFO] [stdout]     |
[INFO] [stdout] 97  |             )*;
[INFO] [stdout]     |               ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 138 |     new_operator!(ops, "-", [y, x], { x - y });
[INFO] [stdout]     |     ------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/rpncalculator.rs:97:15
[INFO] [stdout]     |
[INFO] [stdout] 97  |             )*;
[INFO] [stdout]     |               ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 139 |     new_operator!(ops, "*", [y, x], { x * y });
[INFO] [stdout]     |     ------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/rpncalculator.rs:97:15
[INFO] [stdout]     |
[INFO] [stdout] 97  |             )*;
[INFO] [stdout]     |               ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 140 |     new_operator!(ops, "/", [y, x], { x / y });
[INFO] [stdout]     |     ------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/rpncalculator.rs:97:15
[INFO] [stdout]     |
[INFO] [stdout] 97  |             )*;
[INFO] [stdout]     |               ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 242 |         new_operator!(calc.operators, "X", [_x, _y], {0.0});
[INFO] [stdout]     |         ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/rpncalculator.rs:97:15
[INFO] [stdout]     |
[INFO] [stdout] 97  |             )*;
[INFO] [stdout]     |               ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 284 |         new_operator!(calc.operators, "?", [], { 10.0 });
[INFO] [stdout]     |         ------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.23s
[INFO] running `Command { std: "docker" "inspect" "0d12a2e80add4ae4aad1c5053276fd046b4eb4c6f24bad456f801bdf0405ef1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d12a2e80add4ae4aad1c5053276fd046b4eb4c6f24bad456f801bdf0405ef1f", kill_on_drop: false }`
[INFO] [stdout] 0d12a2e80add4ae4aad1c5053276fd046b4eb4c6f24bad456f801bdf0405ef1f
[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" "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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 44f084f0d76d67839e7dce69b1ae5620e1da7c11081e2fc533c3396ce433f1d0
[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" "44f084f0d76d67839e7dce69b1ae5620e1da7c11081e2fc533c3396ce433f1d0", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/rpncalculator.rs:97:15
[INFO] [stderr]     |
[INFO] [stderr] 97  |             )*;
[INFO] [stderr]     |               ^ help: remove this semicolon
[INFO] [stderr] ...
[INFO] [stderr] 137 |     new_operator!(ops, "+", [y, x], { x + y });
[INFO] [stderr]     |     ------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/rpncalculator.rs:97:15
[INFO] [stderr]     |
[INFO] [stderr] 97  |             )*;
[INFO] [stderr]     |               ^ help: remove this semicolon
[INFO] [stderr] ...
[INFO] [stderr] 138 |     new_operator!(ops, "-", [y, x], { x - y });
[INFO] [stderr]     |     ------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/rpncalculator.rs:97:15
[INFO] [stderr]     |
[INFO] [stderr] 97  |             )*;
[INFO] [stderr]     |               ^ help: remove this semicolon
[INFO] [stderr] ...
[INFO] [stderr] 139 |     new_operator!(ops, "*", [y, x], { x * y });
[INFO] [stderr]     |     ------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/rpncalculator.rs:97:15
[INFO] [stderr]     |
[INFO] [stderr] 97  |             )*;
[INFO] [stderr]     |               ^ help: remove this semicolon
[INFO] [stderr] ...
[INFO] [stderr] 137 |     new_operator!(ops, "+", [y, x], { x + y });
[INFO] [stderr]     |     ------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/rpncalculator.rs:97:15
[INFO] [stderr]     |
[INFO] [stderr] 97  |             )*;
[INFO] [stderr]     |               ^ help: remove this semicolon
[INFO] [stderr] ...
[INFO] [stderr] 140 |     new_operator!(ops, "/", [y, x], { x / y });
[INFO] [stderr]     |     ------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/rpncalculator.rs:97:15
[INFO] [stderr]     |
[INFO] [stderr] 97  |             )*;
[INFO] [stderr]     |               ^ help: remove this semicolon
[INFO] [stderr] ...
[INFO] [stderr] 138 |     new_operator!(ops, "-", [y, x], { x - y });
[INFO] [stderr]     |     ------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/rpncalculator.rs:97:15
[INFO] [stderr]     |
[INFO] [stderr] 97  |             )*;
[INFO] [stderr]     |               ^ help: remove this semicolon
[INFO] [stderr] ...
[INFO] [stderr] 139 |     new_operator!(ops, "*", [y, x], { x * y });
[INFO] [stderr]     |     ------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/rpncalculator.rs:97:15
[INFO] [stderr]     |
[INFO] [stderr] 97  |             )*;
[INFO] [stderr]     |               ^ help: remove this semicolon
[INFO] [stderr] ...
[INFO] [stderr] 140 |     new_operator!(ops, "/", [y, x], { x / y });
[INFO] [stderr]     |     ------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/rpncalculator.rs:97:15
[INFO] [stderr]     |
[INFO] [stderr] 97  |             )*;
[INFO] [stderr]     |               ^ help: remove this semicolon
[INFO] [stderr] ...
[INFO] [stderr] 242 |         new_operator!(calc.operators, "X", [_x, _y], {0.0});
[INFO] [stderr]     |         ---------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/rpncalculator.rs:97:15
[INFO] [stderr]     |
[INFO] [stderr] 97  |             )*;
[INFO] [stderr]     |               ^ help: remove this semicolon
[INFO] [stderr] ...
[INFO] [stderr] 284 |         new_operator!(calc.operators, "?", [], { 10.0 });
[INFO] [stderr]     |         ------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/pprust-51e0f6856d4b93bd
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test rpncalculator::tests::should_add_f64_to_stack ... ok
[INFO] [stdout] test rpncalculator::tests::should_add_two_f64_in_stack ... ok
[INFO] [stdout] test rpncalculator::tests::should_be_possible_to_add_operator_that_operates_on_stack ... ok
[INFO] [stdout] test rpncalculator::tests::should_calculate_division ... ok
[INFO] [stdout] test rpncalculator::tests::should_calculate_subtraction ... ok
[INFO] [stdout] test rpncalculator::tests::should_calculate_the_example_from_the_site ... ok
[INFO] [stdout] test rpncalculator::tests::should_calculate_multiplication ... ok
[INFO] [stdout] test rpncalculator::tests::should_add_two_f64_to_stack ... ok
[INFO] [stdout] test rpncalculator::tests::should_create_a_calculator ... ok
[INFO] [stdout] test rpncalculator::tests::should_extend_default_operators_with_operators ... ok
[INFO] [stdout] test rpncalculator::tests::should_return_error_when_evaluating_garbage ... ok
[INFO] [stdout] test rpncalculator::tests::should_return_error_when_adding_without_enough_operands ... ok
[INFO] [stdout] test rpncalculator::tests::should_use_operators_passed_at_construction_time ... ok
[INFO] [stdout] test rpncalculator::tests::should_not_pop_without_enough_operands ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rpncalculator-9e5fe24388c552f0
[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] [stderr]    Doc-tests pprust
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> /opt/rustwide/workdir/src/rpncalculator.rs:97:15
[INFO] [stderr]     |
[INFO] [stderr] 97  |             )*;
[INFO] [stderr]     |               ^ help: remove this semicolon
[INFO] [stderr] ...
[INFO] [stderr] 137 |     new_operator!(ops, "+", [y, x], { x + y });
[INFO] [stderr]     |     ------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> /opt/rustwide/workdir/src/rpncalculator.rs:97:15
[INFO] [stderr]     |
[INFO] [stderr] 97  |             )*;
[INFO] [stderr]     |               ^ help: remove this semicolon
[INFO] [stderr] ...
[INFO] [stderr] 138 |     new_operator!(ops, "-", [y, x], { x - y });
[INFO] [stderr]     |     ------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> /opt/rustwide/workdir/src/rpncalculator.rs:97:15
[INFO] [stderr]     |
[INFO] [stderr] 97  |             )*;
[INFO] [stderr]     |               ^ help: remove this semicolon
[INFO] [stderr] ...
[INFO] [stderr] 139 |     new_operator!(ops, "*", [y, x], { x * y });
[INFO] [stderr]     |     ------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> /opt/rustwide/workdir/src/rpncalculator.rs:97:15
[INFO] [stderr]     |
[INFO] [stderr] 97  |             )*;
[INFO] [stderr]     |               ^ help: remove this semicolon
[INFO] [stderr] ...
[INFO] [stderr] 140 |     new_operator!(ops, "/", [y, x], { x / y });
[INFO] [stderr]     |     ------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/rpncalculator.rs - new_operator (line 50) ... ok
[INFO] [stdout] test src/rpncalculator.rs - rpncalculator::default_operators (line 125) ... ok
[INFO] [stdout] test src/rpncalculator.rs - new_operator (line 69) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "44f084f0d76d67839e7dce69b1ae5620e1da7c11081e2fc533c3396ce433f1d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44f084f0d76d67839e7dce69b1ae5620e1da7c11081e2fc533c3396ce433f1d0", kill_on_drop: false }`
[INFO] [stdout] 44f084f0d76d67839e7dce69b1ae5620e1da7c11081e2fc533c3396ce433f1d0
