[INFO] cloning repository https://github.com/hawnzug/mal [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hawnzug/mal" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhawnzug%2Fmal", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhawnzug%2Fmal'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 101d4a64034ae1b6df92d487f20410fdfe5520dc [INFO] checking hawnzug/mal against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhawnzug%2Fmal" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/hawnzug/mal 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/hawnzug/mal [INFO] finished tweaking git repo https://github.com/hawnzug/mal [INFO] tweaked toml for git repo https://github.com/hawnzug/mal written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/hawnzug/mal 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] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded conv v0.3.2 [INFO] [stderr] Downloaded custom_derive v0.1.4 [INFO] [stderr] Downloaded chomp v0.2.5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] e8871fbe1dc124399f2e86a4fad24516ae91630787098040a075c271c0f8d2fb [INFO] running `Command { std: "docker" "start" "-a" "e8871fbe1dc124399f2e86a4fad24516ae91630787098040a075c271c0f8d2fb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e8871fbe1dc124399f2e86a4fad24516ae91630787098040a075c271c0f8d2fb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e8871fbe1dc124399f2e86a4fad24516ae91630787098040a075c271c0f8d2fb", kill_on_drop: false }` [INFO] [stdout] e8871fbe1dc124399f2e86a4fad24516ae91630787098040a075c271c0f8d2fb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 17f9044d161a6ccb5abbaab4df167f6ed5747baabee496bde0c8cd9462ab4490 [INFO] running `Command { std: "docker" "start" "-a" "17f9044d161a6ccb5abbaab4df167f6ed5747baabee496bde0c8cd9462ab4490", kill_on_drop: false }` [INFO] [stderr] Checking custom_derive v0.1.4 [INFO] [stderr] Checking bitflags v0.5.0 [INFO] [stderr] Checking conv v0.3.2 [INFO] [stderr] Checking chomp v0.2.5 [INFO] [stderr] Checking practice_mal v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused `#[macro_use]` import [INFO] [stdout] --> src/main.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #[macro_use] [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `#[macro_use]` import [INFO] [stdout] --> src/main.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #[macro_use] [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `...` range patterns are deprecated [INFO] [stdout] --> src/reader.rs:110:11 [INFO] [stdout] | [INFO] [stdout] 110 | 35...38 => true, [INFO] [stdout] | ^^^ help: use `..=` for an inclusive range [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `...` range patterns are deprecated [INFO] [stdout] --> src/reader.rs:112:11 [INFO] [stdout] | [INFO] [stdout] 112 | 60...64 => true, [INFO] [stdout] | ^^^ help: use `..=` for an inclusive range [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `...` range patterns are deprecated [INFO] [stdout] --> src/reader.rs:113:11 [INFO] [stdout] | [INFO] [stdout] 113 | 94...95 => true, [INFO] [stdout] | ^^^ help: use `..=` for an inclusive range [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `...` range patterns are deprecated [INFO] [stdout] --> src/reader.rs:110:11 [INFO] [stdout] | [INFO] [stdout] 110 | 35...38 => true, [INFO] [stdout] | ^^^ help: use `..=` for an inclusive range [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `...` range patterns are deprecated [INFO] [stdout] --> src/reader.rs:112:11 [INFO] [stdout] | [INFO] [stdout] 112 | 60...64 => true, [INFO] [stdout] | ^^^ help: use `..=` for an inclusive range [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `...` range patterns are deprecated [INFO] [stdout] --> src/reader.rs:113:11 [INFO] [stdout] | [INFO] [stdout] 113 | 94...95 => true, [INFO] [stdout] | ^^^ help: use `..=` for an inclusive range [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/steps/step5_tco.rs:14:40 [INFO] [stdout] | [INFO] [stdout] 14 | pub fn rep(s: &str, mut env: &mut Env, mut global: &mut Env) -> String { [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/steps/step5_tco.rs:18:48 [INFO] [stdout] | [INFO] [stdout] 18 | pub fn eval(orgast: MalType, orgenv: &mut Env, mut global: &mut Env) -> MalType { [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/steps/step5_tco.rs:14:40 [INFO] [stdout] | [INFO] [stdout] 14 | pub fn rep(s: &str, mut env: &mut Env, mut global: &mut Env) -> String { [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/steps/step5_tco.rs:18:48 [INFO] [stdout] | [INFO] [stdout] 18 | pub fn eval(orgast: MalType, orgenv: &mut Env, mut global: &mut Env) -> MalType { [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.51s [INFO] running `Command { std: "docker" "inspect" "17f9044d161a6ccb5abbaab4df167f6ed5747baabee496bde0c8cd9462ab4490", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "17f9044d161a6ccb5abbaab4df167f6ed5747baabee496bde0c8cd9462ab4490", kill_on_drop: false }` [INFO] [stdout] 17f9044d161a6ccb5abbaab4df167f6ed5747baabee496bde0c8cd9462ab4490 [INFO] checking hawnzug/mal against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhawnzug%2Fmal" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/hawnzug/mal 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/hawnzug/mal [INFO] finished tweaking git repo https://github.com/hawnzug/mal [INFO] tweaked toml for git repo https://github.com/hawnzug/mal written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/hawnzug/mal 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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 865df6b8a54da6c8ccc8eb7f247ddf128fc15fd036b10aad0d7425943977451d [INFO] running `Command { std: "docker" "start" "-a" "865df6b8a54da6c8ccc8eb7f247ddf128fc15fd036b10aad0d7425943977451d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "865df6b8a54da6c8ccc8eb7f247ddf128fc15fd036b10aad0d7425943977451d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "865df6b8a54da6c8ccc8eb7f247ddf128fc15fd036b10aad0d7425943977451d", kill_on_drop: false }` [INFO] [stdout] 865df6b8a54da6c8ccc8eb7f247ddf128fc15fd036b10aad0d7425943977451d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] d45340ef98e3ce62d949ba9e54c7deddcda8a11a7b46d65a226650f9ad7f282a [INFO] running `Command { std: "docker" "start" "-a" "d45340ef98e3ce62d949ba9e54c7deddcda8a11a7b46d65a226650f9ad7f282a", kill_on_drop: false }` [INFO] [stderr] Checking custom_derive v0.1.4 [INFO] [stderr] Checking bitflags v0.5.0 [INFO] [stderr] Checking conv v0.3.2 [INFO] [stderr] Checking chomp v0.2.5 [INFO] [stderr] Checking practice_mal v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused `#[macro_use]` import [INFO] [stdout] --> src/main.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #[macro_use] [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `#[macro_use]` import [INFO] [stdout] --> src/main.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #[macro_use] [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `...` range patterns are deprecated [INFO] [stdout] --> src/reader.rs:110:11 [INFO] [stdout] | [INFO] [stdout] 110 | 35...38 => true, [INFO] [stdout] | ^^^ help: use `..=` for an inclusive range [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `...` range patterns are deprecated [INFO] [stdout] --> src/reader.rs:112:11 [INFO] [stdout] | [INFO] [stdout] 112 | 60...64 => true, [INFO] [stdout] | ^^^ help: use `..=` for an inclusive range [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `...` range patterns are deprecated [INFO] [stdout] --> src/reader.rs:113:11 [INFO] [stdout] | [INFO] [stdout] 113 | 94...95 => true, [INFO] [stdout] | ^^^ help: use `..=` for an inclusive range [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `...` range patterns are deprecated [INFO] [stdout] --> src/reader.rs:110:11 [INFO] [stdout] | [INFO] [stdout] 110 | 35...38 => true, [INFO] [stdout] | ^^^ help: use `..=` for an inclusive range [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `...` range patterns are deprecated [INFO] [stdout] --> src/reader.rs:112:11 [INFO] [stdout] | [INFO] [stdout] 112 | 60...64 => true, [INFO] [stdout] | ^^^ help: use `..=` for an inclusive range [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `...` range patterns are deprecated [INFO] [stdout] --> src/reader.rs:113:11 [INFO] [stdout] | [INFO] [stdout] 113 | 94...95 => true, [INFO] [stdout] | ^^^ help: use `..=` for an inclusive range [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> src/steps/step5_tco.rs:84:29 [INFO] [stdout] | [INFO] [stdout] 84 | / ... match old.multibind(*formals, para) { [INFO] [stdout] 85 | | ... Ok(newnew) => { [INFO] [stdout] 86 | | ... ast = *body.clone(); [INFO] [stdout] 87 | | ... env = newnew.clone(); [INFO] [stdout] ... | [INFO] [stdout] 90 | | ... Err(err) => return err, [INFO] [stdout] 91 | | ... }; [INFO] [stdout] | |_______________________^ cannot infer type [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> src/steps/step5_tco.rs:84:29 [INFO] [stdout] | [INFO] [stdout] 84 | / ... match old.multibind(*formals, para) { [INFO] [stdout] 85 | | ... Ok(newnew) => { [INFO] [stdout] 86 | | ... ast = *body.clone(); [INFO] [stdout] 87 | | ... env = newnew.clone(); [INFO] [stdout] ... | [INFO] [stdout] 90 | | ... Err(err) => return err, [INFO] [stdout] 91 | | ... }; [INFO] [stdout] | |_______________________^ cannot infer type [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/steps/step5_tco.rs:14:40 [INFO] [stdout] | [INFO] [stdout] 14 | pub fn rep(s: &str, mut env: &mut Env, mut global: &mut Env) -> String { [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/steps/step5_tco.rs:14:40 [INFO] [stdout] | [INFO] [stdout] 14 | pub fn rep(s: &str, mut env: &mut Env, mut global: &mut Env) -> String { [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; 5 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 `practice_mal` (bin "practice_mal") due to 2 previous errors; 5 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error: aborting due to 1 previous error; 5 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 `practice_mal` (bin "practice_mal" test) due to 2 previous errors; 5 warnings emitted [INFO] running `Command { std: "docker" "inspect" "d45340ef98e3ce62d949ba9e54c7deddcda8a11a7b46d65a226650f9ad7f282a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d45340ef98e3ce62d949ba9e54c7deddcda8a11a7b46d65a226650f9ad7f282a", kill_on_drop: false }` [INFO] [stdout] d45340ef98e3ce62d949ba9e54c7deddcda8a11a7b46d65a226650f9ad7f282a