[INFO] cloning repository https://github.com/proecho/french_cypher
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/proecho/french_cypher" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fproecho%2Ffrench_cypher", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fproecho%2Ffrench_cypher'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 98b2f1db31a0bab58ab22cc711fa4c354b6938b6
[INFO] testing proecho/french_cypher against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fproecho%2Ffrench_cypher" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/proecho/french_cypher on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/proecho/french_cypher
[INFO] finished tweaking git repo https://github.com/proecho/french_cypher
[INFO] tweaked toml for git repo https://github.com/proecho/french_cypher written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/proecho/french_cypher already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fc2928492b4ce23b1a4c10cbac89cd1a028bafa29c247ed1e12478931dc5e3a2
[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" "fc2928492b4ce23b1a4c10cbac89cd1a028bafa29c247ed1e12478931dc5e3a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fc2928492b4ce23b1a4c10cbac89cd1a028bafa29c247ed1e12478931dc5e3a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc2928492b4ce23b1a4c10cbac89cd1a028bafa29c247ed1e12478931dc5e3a2", kill_on_drop: false }`
[INFO] [stdout] fc2928492b4ce23b1a4c10cbac89cd1a028bafa29c247ed1e12478931dc5e3a2
[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=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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 32c1d50981af21738b630a25c8d815dd004b07d279be41fd7e623850b4c3a9be
[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" "32c1d50981af21738b630a25c8d815dd004b07d279be41fd7e623850b4c3a9be", kill_on_drop: false }`
[INFO] [stderr]    Compiling french_cypher v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `return` value
[INFO] [stdout]   --> src/main.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 |         return(encode);
[INFO] [stdout]    |               ^      ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 40 -         return(encode);
[INFO] [stdout] 40 +         returnencode;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `return` value
[INFO] [stdout]   --> src/main.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |         return(code);
[INFO] [stdout]    |               ^    ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 43 -         return(code);
[INFO] [stdout] 43 +         returncode;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `return` value
[INFO] [stdout]   --> src/main.rs:86:8
[INFO] [stdout]    |
[INFO] [stdout] 86 |     return(encode_message);
[INFO] [stdout]    |           ^              ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 86 -     return(encode_message);
[INFO] [stdout] 86 +     returnencode_message;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `return` value
[INFO] [stdout]   --> src/main.rs:96:8
[INFO] [stdout]    |
[INFO] [stdout] 96 |     return(returning_list);
[INFO] [stdout]    |           ^              ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 96 -     return(returning_list);
[INFO] [stdout] 96 +     returnreturning_list;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `encode_char` is never read
[INFO] [stdout]   --> src/main.rs:55:11
[INFO] [stdout]    |
[INFO] [stdout] 55 |         let mut encode_char = 0;
[INFO] [stdout]    |                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `code_value` is never read
[INFO] [stdout]   --> src/main.rs:56:11
[INFO] [stdout]    |
[INFO] [stdout] 56 |         let mut code_value = 0;
[INFO] [stdout]    |                 ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.89s
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "32c1d50981af21738b630a25c8d815dd004b07d279be41fd7e623850b4c3a9be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32c1d50981af21738b630a25c8d815dd004b07d279be41fd7e623850b4c3a9be", kill_on_drop: false }`
[INFO] [stdout] 32c1d50981af21738b630a25c8d815dd004b07d279be41fd7e623850b4c3a9be
[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=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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--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] 211cf76f8a01567edda65b34264c3436290c959041ef956bb973a97f8a347441
[INFO] running `Command { std: "docker" "start" "-a" "211cf76f8a01567edda65b34264c3436290c959041ef956bb973a97f8a347441", kill_on_drop: false }`
[INFO] [stderr]    Compiling french_cypher v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `return` value
[INFO] [stdout]   --> src/main.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 |         return(encode);
[INFO] [stdout]    |               ^      ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 40 -         return(encode);
[INFO] [stdout] 40 +         returnencode;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `return` value
[INFO] [stdout]   --> src/main.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |         return(code);
[INFO] [stdout]    |               ^    ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 43 -         return(code);
[INFO] [stdout] 43 +         returncode;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `return` value
[INFO] [stdout]   --> src/main.rs:86:8
[INFO] [stdout]    |
[INFO] [stdout] 86 |     return(encode_message);
[INFO] [stdout]    |           ^              ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 86 -     return(encode_message);
[INFO] [stdout] 86 +     returnencode_message;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `return` value
[INFO] [stdout]   --> src/main.rs:96:8
[INFO] [stdout]    |
[INFO] [stdout] 96 |     return(returning_list);
[INFO] [stdout]    |           ^              ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 96 -     return(returning_list);
[INFO] [stdout] 96 +     returnreturning_list;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `encode_char` is never read
[INFO] [stdout]   --> src/main.rs:55:11
[INFO] [stdout]    |
[INFO] [stdout] 55 |         let mut encode_char = 0;
[INFO] [stdout]    |                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `code_value` is never read
[INFO] [stdout]   --> src/main.rs:56:11
[INFO] [stdout]    |
[INFO] [stdout] 56 |         let mut code_value = 0;
[INFO] [stdout]    |                 ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.70s
[INFO] running `Command { std: "docker" "inspect" "211cf76f8a01567edda65b34264c3436290c959041ef956bb973a97f8a347441", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "211cf76f8a01567edda65b34264c3436290c959041ef956bb973a97f8a347441", kill_on_drop: false }`
[INFO] [stdout] 211cf76f8a01567edda65b34264c3436290c959041ef956bb973a97f8a347441
[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=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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9acbd6ebb4bcd618fd041fa944e0777ef7012073772b77f1c97b953318a7ed8e
[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" "9acbd6ebb4bcd618fd041fa944e0777ef7012073772b77f1c97b953318a7ed8e", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unnecessary parentheses around `return` value
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/main.rs:40:12
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 40 |         return(encode);
[INFO] [stdout] 
[INFO] [stderr]    |               ^      ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 40 -         return(encode);
[INFO] [stderr] 40 +         returnencode;
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `return` value
[INFO] [stderr]   --> src/main.rs:43:9
[INFO] [stderr]    |
[INFO] [stderr] 43 |         return(code);
[INFO] [stderr]    |               ^    ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 43 -         return(code);
[INFO] [stderr] 43 +         returncode;
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `return` value
[INFO] [stderr]   --> src/main.rs:86:8
[INFO] [stderr]    |
[INFO] [stderr] 86 |     return(encode_message);
[INFO] [stderr]    |           ^              ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 86 -     return(encode_message);
[INFO] [stderr] 86 +     returnencode_message;
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `return` value
[INFO] [stderr]   --> src/main.rs:96:8
[INFO] [stderr]    |
[INFO] [stderr] 96 |     return(returning_list);
[INFO] [stderr]    |           ^              ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 96 -     return(returning_list);
[INFO] [stderr] 96 +     returnreturning_list;
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `encode_char` is never read
[INFO] [stderr]   --> src/main.rs:55:11
[INFO] [stderr]    |
[INFO] [stderr] 55 |         let mut encode_char = 0;
[INFO] [stderr]    |                 ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `code_value` is never read
[INFO] [stderr]   --> src/main.rs:56:11
[INFO] [stderr]    |
[INFO] [stderr] 56 |         let mut code_value = 0;
[INFO] [stderr]    |                 ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: `french_cypher` (bin "french_cypher" test) generated 6 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/french_cypher-450d8c8ca6b8ba8e)
[INFO] running `Command { std: "docker" "inspect" "9acbd6ebb4bcd618fd041fa944e0777ef7012073772b77f1c97b953318a7ed8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9acbd6ebb4bcd618fd041fa944e0777ef7012073772b77f1c97b953318a7ed8e", kill_on_drop: false }`
[INFO] [stdout] 9acbd6ebb4bcd618fd041fa944e0777ef7012073772b77f1c97b953318a7ed8e