[INFO] cloning repository https://github.com/kamojun/rnc [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kamojun/rnc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkamojun%2Frnc", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkamojun%2Frnc'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 8801db162ad26cb88f8758058078bdfaade813f6 [INFO] checking kamojun/rnc against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkamojun%2Frnc" "/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/kamojun/rnc on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/kamojun/rnc [INFO] finished tweaking git repo https://github.com/kamojun/rnc [INFO] tweaked toml for git repo https://github.com/kamojun/rnc written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/kamojun/rnc 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded getopts v0.2.21 [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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e6fb218f268efaa9351041da77c9dd0a09550f2a67bd1c1a8efcff2d83efb6c0 [INFO] running `Command { std: "docker" "start" "-a" "e6fb218f268efaa9351041da77c9dd0a09550f2a67bd1c1a8efcff2d83efb6c0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e6fb218f268efaa9351041da77c9dd0a09550f2a67bd1c1a8efcff2d83efb6c0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e6fb218f268efaa9351041da77c9dd0a09550f2a67bd1c1a8efcff2d83efb6c0", kill_on_drop: false }` [INFO] [stdout] e6fb218f268efaa9351041da77c9dd0a09550f2a67bd1c1a8efcff2d83efb6c0 [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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d2fc55256de1043264293d937bc662a7c552f3b2f7213384612f88162560f32d [INFO] running `Command { std: "docker" "start" "-a" "d2fc55256de1043264293d937bc662a7c552f3b2f7213384612f88162560f32d", kill_on_drop: false }` [INFO] [stderr] Checking unicode-width v0.1.7 [INFO] [stderr] Checking getopts v0.2.21 [INFO] [stderr] Checking rnc v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/tokenize.rs:423:13 [INFO] [stdout] | [INFO] [stdout] 423 | for mut tk in list.iter_mut() { [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: field `msg` is never read [INFO] [stdout] --> src/ctype.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 6 | pub struct TypeError { [INFO] [stdout] | --------- field in this struct [INFO] [stdout] 7 | pub msg: String, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `TypeError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `is_extern` is never read [INFO] [stdout] --> src/parse/node.rs:11:9 [INFO] [stdout] | [INFO] [stdout] 5 | pub struct Var { [INFO] [stdout] | --- field in this struct [INFO] [stdout] ... [INFO] [stdout] 11 | pub is_extern: bool, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `ty` is never read [INFO] [stdout] --> src/parse/node.rs:142:9 [INFO] [stdout] | [INFO] [stdout] 141 | pub struct Function { [INFO] [stdout] | -------- field in this struct [INFO] [stdout] 142 | pub ty: TypeRef, [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/tokenize.rs:423:13 [INFO] [stdout] | [INFO] [stdout] 423 | for mut tk in list.iter_mut() { [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: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `msg` is never read [INFO] [stdout] --> src/ctype.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 6 | pub struct TypeError { [INFO] [stdout] | --------- field in this struct [INFO] [stdout] 7 | pub msg: String, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `TypeError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `is_extern` is never read [INFO] [stdout] --> src/parse/node.rs:11:9 [INFO] [stdout] | [INFO] [stdout] 5 | pub struct Var { [INFO] [stdout] | --- field in this struct [INFO] [stdout] ... [INFO] [stdout] 11 | pub is_extern: bool, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `ty` is never read [INFO] [stdout] --> src/parse/node.rs:142:9 [INFO] [stdout] | [INFO] [stdout] 141 | pub struct Function { [INFO] [stdout] | -------- field in this struct [INFO] [stdout] 142 | pub ty: TypeRef, [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.63s [INFO] running `Command { std: "docker" "inspect" "d2fc55256de1043264293d937bc662a7c552f3b2f7213384612f88162560f32d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d2fc55256de1043264293d937bc662a7c552f3b2f7213384612f88162560f32d", kill_on_drop: false }` [INFO] [stdout] d2fc55256de1043264293d937bc662a7c552f3b2f7213384612f88162560f32d [INFO] checking kamojun/rnc against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkamojun%2Frnc" "/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/kamojun/rnc on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/kamojun/rnc [INFO] finished tweaking git repo https://github.com/kamojun/rnc [INFO] tweaked toml for git repo https://github.com/kamojun/rnc written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/kamojun/rnc 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] f318b1cfbaa493de4ac89a3920ce37c6f94a3669ae06d0db5bf9b9cfba8ff703 [INFO] running `Command { std: "docker" "start" "-a" "f318b1cfbaa493de4ac89a3920ce37c6f94a3669ae06d0db5bf9b9cfba8ff703", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f318b1cfbaa493de4ac89a3920ce37c6f94a3669ae06d0db5bf9b9cfba8ff703", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f318b1cfbaa493de4ac89a3920ce37c6f94a3669ae06d0db5bf9b9cfba8ff703", kill_on_drop: false }` [INFO] [stdout] f318b1cfbaa493de4ac89a3920ce37c6f94a3669ae06d0db5bf9b9cfba8ff703 [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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f531c1ea0f096d97116233d2942e9675d2a3a4e14c9b882df8a107e580752acf [INFO] running `Command { std: "docker" "start" "-a" "f531c1ea0f096d97116233d2942e9675d2a3a4e14c9b882df8a107e580752acf", kill_on_drop: false }` [INFO] [stderr] Checking unicode-width v0.1.7 [INFO] [stderr] Checking getopts v0.2.21 [INFO] [stderr] Checking rnc v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/tokenize.rs:423:13 [INFO] [stdout] | [INFO] [stdout] 423 | for mut tk in list.iter_mut() { [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/tokenize.rs:423:13 [INFO] [stdout] | [INFO] [stdout] 423 | for mut tk in list.iter_mut() { [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: field `msg` is never read [INFO] [stdout] --> src/ctype.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 6 | pub struct TypeError { [INFO] [stdout] | --------- field in this struct [INFO] [stdout] 7 | pub msg: String, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `TypeError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `is_extern` is never read [INFO] [stdout] --> src/parse/node.rs:11:9 [INFO] [stdout] | [INFO] [stdout] 5 | pub struct Var { [INFO] [stdout] | --- field in this struct [INFO] [stdout] ... [INFO] [stdout] 11 | pub is_extern: bool, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `ty` is never read [INFO] [stdout] --> src/parse/node.rs:142:9 [INFO] [stdout] | [INFO] [stdout] 141 | pub struct Function { [INFO] [stdout] | -------- field in this struct [INFO] [stdout] 142 | pub ty: TypeRef, [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `msg` is never read [INFO] [stdout] --> src/ctype.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 6 | pub struct TypeError { [INFO] [stdout] | --------- field in this struct [INFO] [stdout] 7 | pub msg: String, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `TypeError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `is_extern` is never read [INFO] [stdout] --> src/parse/node.rs:11:9 [INFO] [stdout] | [INFO] [stdout] 5 | pub struct Var { [INFO] [stdout] | --- field in this struct [INFO] [stdout] ... [INFO] [stdout] 11 | pub is_extern: bool, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `ty` is never read [INFO] [stdout] --> src/parse/node.rs:142:9 [INFO] [stdout] | [INFO] [stdout] 141 | pub struct Function { [INFO] [stdout] | -------- field in this struct [INFO] [stdout] 142 | pub ty: TypeRef, [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.74s [INFO] running `Command { std: "docker" "inspect" "f531c1ea0f096d97116233d2942e9675d2a3a4e14c9b882df8a107e580752acf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f531c1ea0f096d97116233d2942e9675d2a3a4e14c9b882df8a107e580752acf", kill_on_drop: false }` [INFO] [stdout] f531c1ea0f096d97116233d2942e9675d2a3a4e14c9b882df8a107e580752acf