[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] checking andrematheus/programming-praxis-rust against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandrematheus%2Fprogramming-praxis-rust" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/andrematheus/programming-praxis-rust on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "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-7/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" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] fba1fa6a6213b0627a8727a0b221a448c9c193bf7b96d2eac76bbe8b722c2e56
[INFO] running `Command { std: "docker" "start" "-a" "fba1fa6a6213b0627a8727a0b221a448c9c193bf7b96d2eac76bbe8b722c2e56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fba1fa6a6213b0627a8727a0b221a448c9c193bf7b96d2eac76bbe8b722c2e56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fba1fa6a6213b0627a8727a0b221a448c9c193bf7b96d2eac76bbe8b722c2e56", kill_on_drop: false }`
[INFO] [stdout] fba1fa6a6213b0627a8727a0b221a448c9c193bf7b96d2eac76bbe8b722c2e56
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=forbid" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] fb8a969fe5e892d24dcebd5c702ee874582c976bc2c556c320952a6ae174cf43
[INFO] running `Command { std: "docker" "start" "-a" "fb8a969fe5e892d24dcebd5c702ee874582c976bc2c556c320952a6ae174cf43", kill_on_drop: false }`
[INFO] [stderr]     Checking 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: 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: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `Command { std: "docker" "inspect" "fb8a969fe5e892d24dcebd5c702ee874582c976bc2c556c320952a6ae174cf43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb8a969fe5e892d24dcebd5c702ee874582c976bc2c556c320952a6ae174cf43", kill_on_drop: false }`
[INFO] [stdout] fb8a969fe5e892d24dcebd5c702ee874582c976bc2c556c320952a6ae174cf43