[INFO] cloning repository https://github.com/pluveto/rulog
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pluveto/rulog" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpluveto%2Frulog", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpluveto%2Frulog'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ad6198a0bb2b66b495a5f80ea6facda1f6187f55
[INFO] checking pluveto/rulog against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpluveto%2Frulog" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pluveto/rulog 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/pluveto/rulog
[INFO] finished tweaking git repo https://github.com/pluveto/rulog
[INFO] tweaked toml for git repo https://github.com/pluveto/rulog written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/pluveto/rulog 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] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 6b18c95d8dfe4ef54123e884cd904647d71014869e28e578c102c959da014d14
[INFO] running `Command { std: "docker" "start" "-a" "6b18c95d8dfe4ef54123e884cd904647d71014869e28e578c102c959da014d14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6b18c95d8dfe4ef54123e884cd904647d71014869e28e578c102c959da014d14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b18c95d8dfe4ef54123e884cd904647d71014869e28e578c102c959da014d14", kill_on_drop: false }`
[INFO] [stdout] 6b18c95d8dfe4ef54123e884cd904647d71014869e28e578c102c959da014d14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] b87ac870c44ab9ccfceba0c9124355bec596d45a67f5c3023344c5e3521aee8e
[INFO] running `Command { std: "docker" "start" "-a" "b87ac870c44ab9ccfceba0c9124355bec596d45a67f5c3023344c5e3521aee8e", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling rustix v0.38.28
[INFO] [stderr]     Checking bitflags v2.4.1
[INFO] [stderr]     Checking linux-raw-sys v0.4.12
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]     Checking termcolor v1.4.0
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking gimli v0.28.1
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking aho-corasick v1.1.2
[INFO] [stderr]     Checking object v0.32.1
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]     Checking iana-time-zone v0.1.58
[INFO] [stderr]     Checking regex-automata v0.4.3
[INFO] [stderr]     Checking is-terminal v0.4.9
[INFO] [stderr]     Checking chrono v0.4.31
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]     Checking regex v1.10.2
[INFO] [stderr]     Checking env_logger v0.10.1
[INFO] [stderr]     Checking rulog_test_util v0.1.2 (/opt/rustwide/workdir/rulog_test_util)
[INFO] [stderr]     Checking rulog_core v0.1.2 (/opt/rustwide/workdir/rulog_core)
[INFO] [stdout] warning: the item `Token` is imported redundantly
[INFO] [stdout]    --> rulog_core/src/lexer.rs:188:9
[INFO] [stdout]     |
[INFO] [stdout] 187 |     use super::*;
[INFO] [stdout]     |         -------- the item `Token` is already imported here
[INFO] [stdout] 188 |     use crate::types::token::Token;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rulog_vm v0.1.2 (/opt/rustwide/workdir/rulog_vm)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `unify` is never used
[INFO] [stdout]    --> rulog_vm/src/resolver.rs:306:4
[INFO] [stdout]     |
[INFO] [stdout] 306 | fn unify(term1: &Term, term2: &Term) -> Option<Environment> {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rulog_cli v0.1.2 (/opt/rustwide/workdir/rulog_cli)
[INFO] [stdout] warning: function `unify` is never used
[INFO] [stdout]    --> rulog_vm/src/resolver.rs:306:4
[INFO] [stdout]     |
[INFO] [stdout] 306 | fn unify(term1: &Term, term2: &Term) -> Option<Environment> {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.96s
[INFO] running `Command { std: "docker" "inspect" "b87ac870c44ab9ccfceba0c9124355bec596d45a67f5c3023344c5e3521aee8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b87ac870c44ab9ccfceba0c9124355bec596d45a67f5c3023344c5e3521aee8e", kill_on_drop: false }`
[INFO] [stdout] b87ac870c44ab9ccfceba0c9124355bec596d45a67f5c3023344c5e3521aee8e