[INFO] updating cached repository https://github.com/andrematheus/programming-praxis-rust
[INFO] running `"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"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 000d331077581d8f1e6cd4ee7245b948ceeeb31b
[INFO] checking andrematheus/programming-praxis-rust against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandrematheus%2Fprogramming-praxis-rust" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/andrematheus/programming-praxis-rust on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-1/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 `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7ec49a9963c8018b087f544bd6cac572da7117cb24fc68493e83df1ba440aae5
[INFO] running `"docker" "start" "-a" "7ec49a9963c8018b087f544bd6cac572da7117cb24fc68493e83df1ba440aae5"`
[INFO] [stderr]     Checking pprust v0.1.0 (/opt/rustwide/workdir)
[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] 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: 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] 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: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.89s
[INFO] running `"docker" "inspect" "7ec49a9963c8018b087f544bd6cac572da7117cb24fc68493e83df1ba440aae5"`
[INFO] running `"docker" "rm" "-f" "7ec49a9963c8018b087f544bd6cac572da7117cb24fc68493e83df1ba440aae5"`
[INFO] [stdout] 7ec49a9963c8018b087f544bd6cac572da7117cb24fc68493e83df1ba440aae5