[INFO] fetching crate simpleton 0.23.1...
[INFO] checking simpleton-0.23.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate simpleton 0.23.1 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate simpleton 0.23.1 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 crates.io crate simpleton 0.23.1
[INFO] finished tweaking crates.io crate simpleton 0.23.1
[INFO] tweaked toml for crates.io crate simpleton 0.23.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate simpleton 0.23.1 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded intuicio-plugins v0.23.1
[INFO] [stderr]   Downloaded intuicio-data v0.23.1
[INFO] [stderr]   Downloaded intuicio-derive v0.23.1
[INFO] [stderr]   Downloaded intuicio-frontend-simpleton v0.23.1
[INFO] [stderr]   Downloaded intuicio-backend-vm v0.23.1
[INFO] [stderr]   Downloaded serde-intermediate-derive v1.6.0
[INFO] [stderr]   Downloaded serde-intermediate v1.6.0
[INFO] [stderr]   Downloaded intuicio-nodes v0.23.1
[INFO] [stderr]   Downloaded intuicio-core v0.23.1
[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] 9e03054fed41e69a4e21067dc8e3151dbf86e4246a6e44b8b869a14cc8033a51
[INFO] running `Command { std: "docker" "start" "-a" "9e03054fed41e69a4e21067dc8e3151dbf86e4246a6e44b8b869a14cc8033a51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9e03054fed41e69a4e21067dc8e3151dbf86e4246a6e44b8b869a14cc8033a51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e03054fed41e69a4e21067dc8e3151dbf86e4246a6e44b8b869a14cc8033a51", kill_on_drop: false }`
[INFO] [stdout] 9e03054fed41e69a4e21067dc8e3151dbf86e4246a6e44b8b869a14cc8033a51
[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] fea85ec29c0647370c5da3adafaa1abceba156d547bd8b103bb4599e2da317d9
[INFO] running `Command { std: "docker" "start" "-a" "fea85ec29c0647370c5da3adafaa1abceba156d547bd8b103bb4599e2da317d9", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.190
[INFO] [stderr]    Compiling thiserror v1.0.50
[INFO] [stderr]    Compiling memchr v2.6.4
[INFO] [stderr]    Compiling ucd-trie v0.1.6
[INFO] [stderr]    Compiling semver v1.0.20
[INFO] [stderr]    Compiling once_cell v1.18.0
[INFO] [stderr]     Checking hashbrown v0.14.2
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]     Checking unicode_categories v0.1.1
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling syn v2.0.38
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking hash32 v0.2.1
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking fixedbitset v0.4.2
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking aho-corasick v1.1.2
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]     Checking winnow v0.5.19
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking libloading v0.8.1
[INFO] [stderr]     Checking option-ext v0.2.0
[INFO] [stderr]     Checking clap_lex v0.6.0
[INFO] [stderr]     Checking dirs-sys v0.4.1
[INFO] [stderr]     Checking clap_builder v4.4.7
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking dirs v5.0.1
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]     Checking indexmap v2.1.0
[INFO] [stderr]    Compiling heapless v0.7.16
[INFO] [stderr]     Checking petgraph v0.6.4
[INFO] [stderr]     Checking rstar v0.10.0
[INFO] [stderr]     Checking regex-automata v0.4.3
[INFO] [stderr]    Compiling serde_derive v1.0.190
[INFO] [stderr]    Compiling thiserror-impl v1.0.50
[INFO] [stderr]    Compiling clap_derive v4.4.7
[INFO] [stderr]    Compiling serde-intermediate-derive v1.6.0
[INFO] [stderr]    Compiling intuicio-derive v0.23.1
[INFO] [stderr]     Checking regex v1.10.2
[INFO] [stderr]     Checking pest v2.7.5
[INFO] [stderr]     Checking snailquote v0.3.1
[INFO] [stderr]     Checking clap v4.4.7
[INFO] [stderr]    Compiling pest_meta v2.7.5
[INFO] [stderr]    Compiling pest_generator v2.7.5
[INFO] [stderr]    Compiling pest_derive v2.7.5
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking serde_spanned v0.6.4
[INFO] [stderr]     Checking toml_datetime v0.6.5
[INFO] [stderr]     Checking serde-intermediate v1.6.0
[INFO] [stderr]     Checking serde_json v1.0.108
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking toml_edit v0.19.15
[INFO] [stderr]     Checking typid v1.1.1
[INFO] [stderr]     Checking intuicio-data v0.23.1
[INFO] [stderr]     Checking intuicio-core v0.23.1
[INFO] [stderr]     Checking toml v0.7.8
[INFO] [stderr]     Checking intuicio-plugins v0.23.1
[INFO] [stderr]     Checking intuicio-backend-vm v0.23.1
[INFO] [stderr]     Checking intuicio-nodes v0.23.1
[INFO] [stderr]     Checking intuicio-frontend-simpleton v0.23.1
[INFO] [stderr]     Checking simpleton v0.23.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 27.69s
[INFO] running `Command { std: "docker" "inspect" "fea85ec29c0647370c5da3adafaa1abceba156d547bd8b103bb4599e2da317d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fea85ec29c0647370c5da3adafaa1abceba156d547bd8b103bb4599e2da317d9", kill_on_drop: false }`
[INFO] [stdout] fea85ec29c0647370c5da3adafaa1abceba156d547bd8b103bb4599e2da317d9
[INFO] checking simpleton-0.23.1 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate simpleton 0.23.1 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate simpleton 0.23.1 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 crates.io crate simpleton 0.23.1
[INFO] finished tweaking crates.io crate simpleton 0.23.1
[INFO] tweaked toml for crates.io crate simpleton 0.23.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate crates.io crate simpleton 0.23.1 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-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] b2357ecd048dbe0078652b06350847ec89f69a913b53bac194fdabb9064678e6
[INFO] running `Command { std: "docker" "start" "-a" "b2357ecd048dbe0078652b06350847ec89f69a913b53bac194fdabb9064678e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b2357ecd048dbe0078652b06350847ec89f69a913b53bac194fdabb9064678e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2357ecd048dbe0078652b06350847ec89f69a913b53bac194fdabb9064678e6", kill_on_drop: false }`
[INFO] [stdout] b2357ecd048dbe0078652b06350847ec89f69a913b53bac194fdabb9064678e6
[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] a14e8acbd6bedd344ec33db562c554124b22f750a2b584410f697abcaccd62c3
[INFO] running `Command { std: "docker" "start" "-a" "a14e8acbd6bedd344ec33db562c554124b22f750a2b584410f697abcaccd62c3", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.190
[INFO] [stderr]    Compiling thiserror v1.0.50
[INFO] [stderr]    Compiling memchr v2.6.4
[INFO] [stderr]    Compiling ucd-trie v0.1.6
[INFO] [stderr]    Compiling once_cell v1.18.0
[INFO] [stderr]    Compiling semver v1.0.20
[INFO] [stderr]     Checking hashbrown v0.14.2
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]     Checking unicode_categories v0.1.1
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling syn v2.0.38
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking hash32 v0.2.1
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking fixedbitset v0.4.2
[INFO] [stderr]     Checking aho-corasick v1.1.2
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking winnow v0.5.19
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]     Checking libloading v0.8.1
[INFO] [stderr]     Checking option-ext v0.2.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking clap_lex v0.6.0
[INFO] [stderr]     Checking dirs-sys v0.4.1
[INFO] [stderr]     Checking dirs v5.0.1
[INFO] [stderr]     Checking clap_builder v4.4.7
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]     Checking indexmap v2.1.0
[INFO] [stderr]    Compiling heapless v0.7.16
[INFO] [stderr]     Checking petgraph v0.6.4
[INFO] [stderr]     Checking rstar v0.10.0
[INFO] [stderr]     Checking regex-automata v0.4.3
[INFO] [stderr]    Compiling serde_derive v1.0.190
[INFO] [stderr]    Compiling thiserror-impl v1.0.50
[INFO] [stderr]    Compiling clap_derive v4.4.7
[INFO] [stderr]    Compiling serde-intermediate-derive v1.6.0
[INFO] [stderr]    Compiling intuicio-derive v0.23.1
[INFO] [stderr]     Checking regex v1.10.2
[INFO] [stderr]    Compiling pest v2.7.5
[INFO] [stderr]     Checking snailquote v0.3.1
[INFO] [stderr]     Checking clap v4.4.7
[INFO] [stderr]    Compiling pest_meta v2.7.5
[INFO] [stderr]    Compiling pest_generator v2.7.5
[INFO] [stderr]    Compiling pest_derive v2.7.5
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking toml_datetime v0.6.5
[INFO] [stderr]     Checking serde_spanned v0.6.4
[INFO] [stderr]     Checking serde-intermediate v1.6.0
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking serde_json v1.0.108
[INFO] [stderr]     Checking toml_edit v0.19.15
[INFO] [stderr]     Checking typid v1.1.1
[INFO] [stderr]     Checking intuicio-data v0.23.1
[INFO] [stderr]     Checking intuicio-core v0.23.1
[INFO] [stderr]     Checking intuicio-plugins v0.23.1
[INFO] [stderr]     Checking intuicio-backend-vm v0.23.1
[INFO] [stderr]     Checking toml v0.7.8
[INFO] [stderr]     Checking intuicio-nodes v0.23.1
[INFO] [stderr]     Checking intuicio-frontend-simpleton v0.23.1
[INFO] [stderr]     Checking simpleton v0.23.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.61s
[INFO] running `Command { std: "docker" "inspect" "a14e8acbd6bedd344ec33db562c554124b22f750a2b584410f697abcaccd62c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a14e8acbd6bedd344ec33db562c554124b22f750a2b584410f697abcaccd62c3", kill_on_drop: false }`
[INFO] [stdout] a14e8acbd6bedd344ec33db562c554124b22f750a2b584410f697abcaccd62c3