[INFO] cloning repository https://github.com/gilesv/lox [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gilesv/lox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgilesv%2Flox", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgilesv%2Flox'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] cd2920bbf2c6f13b597b9f6917777eecb491f03e [INFO] checking gilesv/lox against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgilesv%2Flox" "/workspace/builds/worker-4/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/gilesv/lox on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/gilesv/lox [INFO] finished tweaking git repo https://github.com/gilesv/lox [INFO] tweaked toml for git repo https://github.com/gilesv/lox written to /workspace/builds/worker-4/source/Cargo.toml [INFO] crate git repo https://github.com/gilesv/lox already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 00a342a9de54a4770373b54c7a8e13d488ef1c077e8c2a7fba881dd2f7c0f9be [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" "00a342a9de54a4770373b54c7a8e13d488ef1c077e8c2a7fba881dd2f7c0f9be", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "00a342a9de54a4770373b54c7a8e13d488ef1c077e8c2a7fba881dd2f7c0f9be", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "00a342a9de54a4770373b54c7a8e13d488ef1c077e8c2a7fba881dd2f7c0f9be", kill_on_drop: false }` [INFO] [stdout] 00a342a9de54a4770373b54c7a8e13d488ef1c077e8c2a7fba881dd2f7c0f9be [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "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] 294cdf7152a2efcd9f60313e2422385a51720b939def76c165ab934de5acbbf1 [INFO] running `Command { std: "docker" "start" "-a" "294cdf7152a2efcd9f60313e2422385a51720b939def76c165ab934de5acbbf1", kill_on_drop: false }` [INFO] [stderr] Checking lox v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/main.rs:35:65 [INFO] [stdout] | [INFO] [stdout] 35 | Err(why) => panic!("couldn't open {}: {}", display, why.description()), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/main.rs:42:65 [INFO] [stdout] | [INFO] [stdout] 42 | Err(why) => panic!("couldn't read {}: {}", display, why.description()), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/main.rs:35:65 [INFO] [stdout] | [INFO] [stdout] 35 | Err(why) => panic!("couldn't open {}: {}", display, why.description()), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/main.rs:42:65 [INFO] [stdout] | [INFO] [stdout] 42 | Err(why) => panic!("couldn't read {}: {}", display, why.description()), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Identifier` [INFO] [stdout] --> src/scanner.rs:31:5 [INFO] [stdout] | [INFO] [stdout] 31 | Identifier, String, Number, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Number` [INFO] [stdout] --> src/scanner.rs:31:25 [INFO] [stdout] | [INFO] [stdout] 31 | Identifier, String, Number, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `And` [INFO] [stdout] --> src/scanner.rs:34:5 [INFO] [stdout] | [INFO] [stdout] 34 | And, [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Class` [INFO] [stdout] --> src/scanner.rs:35:5 [INFO] [stdout] | [INFO] [stdout] 35 | Class, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Else` [INFO] [stdout] --> src/scanner.rs:36:5 [INFO] [stdout] | [INFO] [stdout] 36 | Else, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `False` [INFO] [stdout] --> src/scanner.rs:37:5 [INFO] [stdout] | [INFO] [stdout] 37 | False, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Fun` [INFO] [stdout] --> src/scanner.rs:38:5 [INFO] [stdout] | [INFO] [stdout] 38 | Fun, [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `For` [INFO] [stdout] --> src/scanner.rs:39:5 [INFO] [stdout] | [INFO] [stdout] 39 | For, [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `If` [INFO] [stdout] --> src/scanner.rs:40:5 [INFO] [stdout] | [INFO] [stdout] 40 | If, [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Nil` [INFO] [stdout] --> src/scanner.rs:41:5 [INFO] [stdout] | [INFO] [stdout] 41 | Nil, [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Or` [INFO] [stdout] --> src/scanner.rs:42:5 [INFO] [stdout] | [INFO] [stdout] 42 | Or, [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Print` [INFO] [stdout] --> src/scanner.rs:44:5 [INFO] [stdout] | [INFO] [stdout] 44 | Print, Return, Super, This, True, Var, While, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Return` [INFO] [stdout] --> src/scanner.rs:44:12 [INFO] [stdout] | [INFO] [stdout] 44 | Print, Return, Super, This, True, Var, While, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Super` [INFO] [stdout] --> src/scanner.rs:44:20 [INFO] [stdout] | [INFO] [stdout] 44 | Print, Return, Super, This, True, Var, While, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `This` [INFO] [stdout] --> src/scanner.rs:44:27 [INFO] [stdout] | [INFO] [stdout] 44 | Print, Return, Super, This, True, Var, While, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `True` [INFO] [stdout] --> src/scanner.rs:44:33 [INFO] [stdout] | [INFO] [stdout] 44 | Print, Return, Super, This, True, Var, While, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Var` [INFO] [stdout] --> src/scanner.rs:44:39 [INFO] [stdout] | [INFO] [stdout] 44 | Print, Return, Super, This, True, Var, While, [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `While` [INFO] [stdout] --> src/scanner.rs:44:44 [INFO] [stdout] | [INFO] [stdout] 44 | Print, Return, Super, This, True, Var, While, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Eof` [INFO] [stdout] --> src/scanner.rs:46:5 [INFO] [stdout] | [INFO] [stdout] 46 | Eof [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Identifier` [INFO] [stdout] --> src/scanner.rs:31:5 [INFO] [stdout] | [INFO] [stdout] 31 | Identifier, String, Number, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Number` [INFO] [stdout] --> src/scanner.rs:31:25 [INFO] [stdout] | [INFO] [stdout] 31 | Identifier, String, Number, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `And` [INFO] [stdout] --> src/scanner.rs:34:5 [INFO] [stdout] | [INFO] [stdout] 34 | And, [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Class` [INFO] [stdout] --> src/scanner.rs:35:5 [INFO] [stdout] | [INFO] [stdout] 35 | Class, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Else` [INFO] [stdout] --> src/scanner.rs:36:5 [INFO] [stdout] | [INFO] [stdout] 36 | Else, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `False` [INFO] [stdout] --> src/scanner.rs:37:5 [INFO] [stdout] | [INFO] [stdout] 37 | False, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Fun` [INFO] [stdout] --> src/scanner.rs:38:5 [INFO] [stdout] | [INFO] [stdout] 38 | Fun, [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `For` [INFO] [stdout] --> src/scanner.rs:39:5 [INFO] [stdout] | [INFO] [stdout] 39 | For, [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `If` [INFO] [stdout] --> src/scanner.rs:40:5 [INFO] [stdout] | [INFO] [stdout] 40 | If, [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Nil` [INFO] [stdout] --> src/scanner.rs:41:5 [INFO] [stdout] | [INFO] [stdout] 41 | Nil, [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Or` [INFO] [stdout] --> src/scanner.rs:42:5 [INFO] [stdout] | [INFO] [stdout] 42 | Or, [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Print` [INFO] [stdout] --> src/scanner.rs:44:5 [INFO] [stdout] | [INFO] [stdout] 44 | Print, Return, Super, This, True, Var, While, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Return` [INFO] [stdout] --> src/scanner.rs:44:12 [INFO] [stdout] | [INFO] [stdout] 44 | Print, Return, Super, This, True, Var, While, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Super` [INFO] [stdout] --> src/scanner.rs:44:20 [INFO] [stdout] | [INFO] [stdout] 44 | Print, Return, Super, This, True, Var, While, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `This` [INFO] [stdout] --> src/scanner.rs:44:27 [INFO] [stdout] | [INFO] [stdout] 44 | Print, Return, Super, This, True, Var, While, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `True` [INFO] [stdout] --> src/scanner.rs:44:33 [INFO] [stdout] | [INFO] [stdout] 44 | Print, Return, Super, This, True, Var, While, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Var` [INFO] [stdout] --> src/scanner.rs:44:39 [INFO] [stdout] | [INFO] [stdout] 44 | Print, Return, Super, This, True, Var, While, [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `While` [INFO] [stdout] --> src/scanner.rs:44:44 [INFO] [stdout] | [INFO] [stdout] 44 | Print, Return, Super, This, True, Var, While, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Eof` [INFO] [stdout] --> src/scanner.rs:46:5 [INFO] [stdout] | [INFO] [stdout] 46 | Eof [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/main.rs:51:13 [INFO] [stdout] | [INFO] [stdout] 51 | run(source); [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 22 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/main.rs:51:13 [INFO] [stdout] | [INFO] [stdout] 51 | run(source); [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 22 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.58s [INFO] running `Command { std: "docker" "inspect" "294cdf7152a2efcd9f60313e2422385a51720b939def76c165ab934de5acbbf1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "294cdf7152a2efcd9f60313e2422385a51720b939def76c165ab934de5acbbf1", kill_on_drop: false }` [INFO] [stdout] 294cdf7152a2efcd9f60313e2422385a51720b939def76c165ab934de5acbbf1