[INFO] cloning repository https://github.com/gusbicalho/crafting-interpreters-rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gusbicalho/crafting-interpreters-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgusbicalho%2Fcrafting-interpreters-rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgusbicalho%2Fcrafting-interpreters-rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] c44d8f55e0e263ea923b6a3b611efeeec3226a75 [INFO] checking gusbicalho/crafting-interpreters-rs against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgusbicalho%2Fcrafting-interpreters-rs" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/gusbicalho/crafting-interpreters-rs on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/gusbicalho/crafting-interpreters-rs [INFO] finished tweaking git repo https://github.com/gusbicalho/crafting-interpreters-rs [INFO] tweaked toml for git repo https://github.com/gusbicalho/crafting-interpreters-rs written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/gusbicalho/crafting-interpreters-rs already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded rangemap v1.0.3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 5ed59d0f55ecd2f4b1595759778cdc018f9c57e89fabb209a05633fdf22d64cc [INFO] running `Command { std: "docker" "start" "-a" "5ed59d0f55ecd2f4b1595759778cdc018f9c57e89fabb209a05633fdf22d64cc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5ed59d0f55ecd2f4b1595759778cdc018f9c57e89fabb209a05633fdf22d64cc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5ed59d0f55ecd2f4b1595759778cdc018f9c57e89fabb209a05633fdf22d64cc", kill_on_drop: false }` [INFO] [stdout] 5ed59d0f55ecd2f4b1595759778cdc018f9c57e89fabb209a05633fdf22d64cc [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f470ff9d00e02f01cb67dbf27186ce6a63d3670aca8db7380915f00487eb7c0b [INFO] running `Command { std: "docker" "start" "-a" "f470ff9d00e02f01cb67dbf27186ce6a63d3670aca8db7380915f00487eb7c0b", kill_on_drop: false }` [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Compiling num-bigint v0.4.3 [INFO] [stderr] Compiling num-iter v0.1.43 [INFO] [stderr] Compiling num-rational v0.4.1 [INFO] [stderr] Checking rangemap v1.0.3 [INFO] [stderr] Checking num-integer v0.1.45 [INFO] [stderr] Checking num-complex v0.4.2 [INFO] [stderr] Checking num v0.4.0 [INFO] [stderr] Checking crafting-interpreters-rs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused imports: `env`, `io` [INFO] [stdout] --> src/cli.rs:1:11 [INFO] [stdout] | [INFO] [stdout] 1 | use std::{env, io}; [INFO] [stdout] | ^^^ ^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `env`, `io` [INFO] [stdout] --> src/cli.rs:1:11 [INFO] [stdout] | [INFO] [stdout] 1 | use std::{env, io}; [INFO] [stdout] | ^^^ ^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/cli.rs:41:9 [INFO] [stdout] | [INFO] [stdout] 41 | let mut vm = VM::new(); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/cli.rs:41:9 [INFO] [stdout] | [INFO] [stdout] 41 | let mut vm = VM::new(); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `interpret` is never used [INFO] [stdout] --> src/cli.rs:19:4 [INFO] [stdout] | [INFO] [stdout] 19 | fn interpret(source: pipeline::source::Source) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `interpret` is never used [INFO] [stdout] --> src/cli.rs:19:4 [INFO] [stdout] | [INFO] [stdout] 19 | fn interpret(source: pipeline::source::Source) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.13s [INFO] running `Command { std: "docker" "inspect" "f470ff9d00e02f01cb67dbf27186ce6a63d3670aca8db7380915f00487eb7c0b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f470ff9d00e02f01cb67dbf27186ce6a63d3670aca8db7380915f00487eb7c0b", kill_on_drop: false }` [INFO] [stdout] f470ff9d00e02f01cb67dbf27186ce6a63d3670aca8db7380915f00487eb7c0b [INFO] checking gusbicalho/crafting-interpreters-rs against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgusbicalho%2Fcrafting-interpreters-rs" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/gusbicalho/crafting-interpreters-rs on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/gusbicalho/crafting-interpreters-rs [INFO] finished tweaking git repo https://github.com/gusbicalho/crafting-interpreters-rs [INFO] tweaked toml for git repo https://github.com/gusbicalho/crafting-interpreters-rs written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/gusbicalho/crafting-interpreters-rs already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0c488add88c4fe67be4cfc3ef0975c252b54c8899af3a1fc49d922d34f49d529 [INFO] running `Command { std: "docker" "start" "-a" "0c488add88c4fe67be4cfc3ef0975c252b54c8899af3a1fc49d922d34f49d529", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0c488add88c4fe67be4cfc3ef0975c252b54c8899af3a1fc49d922d34f49d529", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0c488add88c4fe67be4cfc3ef0975c252b54c8899af3a1fc49d922d34f49d529", kill_on_drop: false }` [INFO] [stdout] 0c488add88c4fe67be4cfc3ef0975c252b54c8899af3a1fc49d922d34f49d529 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3bb3a5616d9dc6c5d197875540178c15642cf629807b1bbb72a48e922f96a903 [INFO] running `Command { std: "docker" "start" "-a" "3bb3a5616d9dc6c5d197875540178c15642cf629807b1bbb72a48e922f96a903", kill_on_drop: false }` [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Compiling num-bigint v0.4.3 [INFO] [stderr] Compiling num-rational v0.4.1 [INFO] [stderr] Compiling num-iter v0.1.43 [INFO] [stderr] Checking byteorder v1.4.3 [INFO] [stderr] Checking rangemap v1.0.3 [INFO] [stderr] Checking num-integer v0.1.45 [INFO] [stderr] Checking num-complex v0.4.2 [INFO] [stderr] Checking num v0.4.0 [INFO] [stderr] Checking crafting-interpreters-rs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused imports: `env`, `io` [INFO] [stdout] --> src/cli.rs:1:11 [INFO] [stdout] | [INFO] [stdout] 1 | use std::{env, io}; [INFO] [stdout] | ^^^ ^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `env`, `io` [INFO] [stdout] --> src/cli.rs:1:11 [INFO] [stdout] | [INFO] [stdout] 1 | use std::{env, io}; [INFO] [stdout] | ^^^ ^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> src/pipeline/scanner.rs:148:9 [INFO] [stdout] | [INFO] [stdout] 148 | Err(ScanError::make( [INFO] [stdout] | ^^^ cannot infer type of the type parameter `T` declared on the enum `Result` [INFO] [stdout] | [INFO] [stdout] help: consider specifying the generic arguments [INFO] [stdout] | [INFO] [stdout] 148 | Err::(ScanError::make( [INFO] [stdout] | ++++++++++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> src/pipeline/scanner.rs:148:9 [INFO] [stdout] | [INFO] [stdout] 148 | Err(ScanError::make( [INFO] [stdout] | ^^^ cannot infer type of the type parameter `T` declared on the enum `Result` [INFO] [stdout] | [INFO] [stdout] help: consider specifying the generic arguments [INFO] [stdout] | [INFO] [stdout] 148 | Err::(ScanError::make( [INFO] [stdout] | ++++++++++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/cli.rs:41:9 [INFO] [stdout] | [INFO] [stdout] 41 | let mut vm = VM::new(); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/cli.rs:41:9 [INFO] [stdout] | [INFO] [stdout] 41 | let mut vm = VM::new(); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stderr] error: could not compile `crafting-interpreters-rs` (lib) due to 2 previous errors; 2 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error: aborting due to 1 previous error; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stderr] error: could not compile `crafting-interpreters-rs` (lib test) due to 2 previous errors; 2 warnings emitted [INFO] running `Command { std: "docker" "inspect" "3bb3a5616d9dc6c5d197875540178c15642cf629807b1bbb72a48e922f96a903", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3bb3a5616d9dc6c5d197875540178c15642cf629807b1bbb72a48e922f96a903", kill_on_drop: false }` [INFO] [stdout] 3bb3a5616d9dc6c5d197875540178c15642cf629807b1bbb72a48e922f96a903