[INFO] cloning repository https://github.com/hello-wahyu/basic_ir [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hello-wahyu/basic_ir" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhello-wahyu%2Fbasic_ir", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhello-wahyu%2Fbasic_ir'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 81a3a40f0e30c9a5520030a10a25910714f09fc1 [INFO] checking hello-wahyu/basic_ir against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhello-wahyu%2Fbasic_ir" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/hello-wahyu/basic_ir 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/hello-wahyu/basic_ir [INFO] finished tweaking git repo https://github.com/hello-wahyu/basic_ir [INFO] tweaked toml for git repo https://github.com/hello-wahyu/basic_ir written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/hello-wahyu/basic_ir 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 lazy-regex-proc_macros v2.2.2 [INFO] [stderr] Downloaded lazy-regex v2.2.2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 5d8da147906274f336f9000b767ebd84c0d86d6d157bbdab736227f27588a777 [INFO] running `Command { std: "docker" "start" "-a" "5d8da147906274f336f9000b767ebd84c0d86d6d157bbdab736227f27588a777", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5d8da147906274f336f9000b767ebd84c0d86d6d157bbdab736227f27588a777", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5d8da147906274f336f9000b767ebd84c0d86d6d157bbdab736227f27588a777", kill_on_drop: false }` [INFO] [stdout] 5d8da147906274f336f9000b767ebd84c0d86d6d157bbdab736227f27588a777 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 591d2bfe01079dfe4c383464ea9e26a70dfca0cdf786bd5c9c7fefa343b9ba19 [INFO] running `Command { std: "docker" "start" "-a" "591d2bfe01079dfe4c383464ea9e26a70dfca0cdf786bd5c9c7fefa343b9ba19", kill_on_drop: false }` [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling proc-macro2 v1.0.34 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling syn v1.0.82 [INFO] [stderr] Compiling regex-syntax v0.6.25 [INFO] [stderr] Checking once_cell v1.9.0 [INFO] [stderr] Checking ansi_term v0.12.1 [INFO] [stderr] Checking aho-corasick v0.7.18 [INFO] [stderr] Compiling quote v1.0.10 [INFO] [stderr] Checking regex v1.5.4 [INFO] [stderr] Compiling lazy-regex-proc_macros v2.2.2 [INFO] [stderr] Checking lazy-regex v2.2.2 [INFO] [stderr] Checking basic_ir v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: fields `file_text` and `pos_end` are never read [INFO] [stdout] --> src/core/lexer/errors.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 3 | pub struct Error { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] 4 | file_name: String, [INFO] [stdout] 5 | file_text: String, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 8 | pos_end: pos::Position, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `file_text` and `pos_end` are never read [INFO] [stdout] --> src/core/lexer/errors.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 3 | pub struct Error { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] 4 | file_name: String, [INFO] [stdout] 5 | file_text: String, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 8 | pos_end: pos::Position, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Parser` is never constructed [INFO] [stdout] --> src/core/parser/mod.rs:6:8 [INFO] [stdout] | [INFO] [stdout] 6 | struct Parser {} [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Parser` is never constructed [INFO] [stdout] --> src/core/parser/mod.rs:6:8 [INFO] [stdout] | [INFO] [stdout] 6 | struct Parser {} [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.58s [INFO] running `Command { std: "docker" "inspect" "591d2bfe01079dfe4c383464ea9e26a70dfca0cdf786bd5c9c7fefa343b9ba19", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "591d2bfe01079dfe4c383464ea9e26a70dfca0cdf786bd5c9c7fefa343b9ba19", kill_on_drop: false }` [INFO] [stdout] 591d2bfe01079dfe4c383464ea9e26a70dfca0cdf786bd5c9c7fefa343b9ba19 [INFO] checking hello-wahyu/basic_ir against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhello-wahyu%2Fbasic_ir" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/hello-wahyu/basic_ir 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/hello-wahyu/basic_ir [INFO] finished tweaking git repo https://github.com/hello-wahyu/basic_ir [INFO] tweaked toml for git repo https://github.com/hello-wahyu/basic_ir written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/hello-wahyu/basic_ir 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] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 0ad5d5a4582e0c9e96e12419593fdc5856ee3e302b207edf81ed76b62551ac23 [INFO] running `Command { std: "docker" "start" "-a" "0ad5d5a4582e0c9e96e12419593fdc5856ee3e302b207edf81ed76b62551ac23", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0ad5d5a4582e0c9e96e12419593fdc5856ee3e302b207edf81ed76b62551ac23", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0ad5d5a4582e0c9e96e12419593fdc5856ee3e302b207edf81ed76b62551ac23", kill_on_drop: false }` [INFO] [stdout] 0ad5d5a4582e0c9e96e12419593fdc5856ee3e302b207edf81ed76b62551ac23 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 11b9cd2d7f45e209408349a786370aed4cbc3f5c76418331d690f59c39c37a11 [INFO] running `Command { std: "docker" "start" "-a" "11b9cd2d7f45e209408349a786370aed4cbc3f5c76418331d690f59c39c37a11", kill_on_drop: false }` [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling proc-macro2 v1.0.34 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling syn v1.0.82 [INFO] [stderr] Compiling regex-syntax v0.6.25 [INFO] [stderr] Checking once_cell v1.9.0 [INFO] [stderr] Checking ansi_term v0.12.1 [INFO] [stderr] Checking aho-corasick v0.7.18 [INFO] [stderr] Compiling quote v1.0.10 [INFO] [stderr] Checking regex v1.5.4 [INFO] [stderr] Compiling lazy-regex-proc_macros v2.2.2 [INFO] [stderr] Checking lazy-regex v2.2.2 [INFO] [stderr] Checking basic_ir v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: fields `file_text` and `pos_end` are never read [INFO] [stdout] --> src/core/lexer/errors.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 3 | pub struct Error { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] 4 | file_name: String, [INFO] [stdout] 5 | file_text: String, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 8 | pos_end: pos::Position, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Parser` is never constructed [INFO] [stdout] --> src/core/parser/mod.rs:6:8 [INFO] [stdout] | [INFO] [stdout] 6 | struct Parser {} [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `file_text` and `pos_end` are never read [INFO] [stdout] --> src/core/lexer/errors.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 3 | pub struct Error { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] 4 | file_name: String, [INFO] [stdout] 5 | file_text: String, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 8 | pos_end: pos::Position, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Parser` is never constructed [INFO] [stdout] --> src/core/parser/mod.rs:6:8 [INFO] [stdout] | [INFO] [stdout] 6 | struct Parser {} [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.42s [INFO] running `Command { std: "docker" "inspect" "11b9cd2d7f45e209408349a786370aed4cbc3f5c76418331d690f59c39c37a11", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "11b9cd2d7f45e209408349a786370aed4cbc3f5c76418331d690f59c39c37a11", kill_on_drop: false }` [INFO] [stdout] 11b9cd2d7f45e209408349a786370aed4cbc3f5c76418331d690f59c39c37a11