[INFO] fetching crate otarustlings 1.0.0...
[INFO] checking otarustlings-1.0.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate otarustlings 1.0.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate otarustlings 1.0.0 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 otarustlings 1.0.0
[INFO] finished tweaking crates.io crate otarustlings 1.0.0
[INFO] tweaked toml for crates.io crate otarustlings 1.0.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate otarustlings 1.0.0 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 rust-embed-utils v7.2.0
[INFO] [stderr]   Downloaded rust-embed-impl v6.2.0
[INFO] [stderr]   Downloaded clap_derive v3.1.7
[INFO] [stderr]   Downloaded cpufeatures v0.2.2
[INFO] [stderr]   Downloaded tracing-subscriber v0.3.11
[INFO] [stderr]   Downloaded rust-embed v6.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] e8fdcb8c13e1594d662da1b5e8a90edeac0d6a8a9641ca5170e5f72654015ce0
[INFO] running `Command { std: "docker" "start" "-a" "e8fdcb8c13e1594d662da1b5e8a90edeac0d6a8a9641ca5170e5f72654015ce0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e8fdcb8c13e1594d662da1b5e8a90edeac0d6a8a9641ca5170e5f72654015ce0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8fdcb8c13e1594d662da1b5e8a90edeac0d6a8a9641ca5170e5f72654015ce0", kill_on_drop: false }`
[INFO] [stdout] e8fdcb8c13e1594d662da1b5e8a90edeac0d6a8a9641ca5170e5f72654015ce0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 81308200e2f1a358fc4c19bc3b48d6a19e87a4ea2b30c6472d0e6e008deafeb7
[INFO] running `Command { std: "docker" "start" "-a" "81308200e2f1a358fc4c19bc3b48d6a19e87a4ea2b30c6472d0e6e008deafeb7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.124
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling opaque-debug v0.3.0
[INFO] [stderr]    Compiling cpufeatures v0.2.2
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]    Compiling signal-hook v0.3.13
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]     Checking tracing-core v0.1.26
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling indexmap v1.8.1
[INFO] [stderr]     Checking slab v0.4.6
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking gimli v0.26.1
[INFO] [stderr]     Checking miniz_oxide v0.5.1
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling bstr v0.2.17
[INFO] [stderr]     Checking object v0.28.3
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking mio v0.8.2
[INFO] [stderr]     Checking inotify-sys v0.1.5
[INFO] [stderr]     Checking regex v1.5.5
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]    Compiling backtrace v0.3.65
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling sha2 v0.9.9
[INFO] [stderr]     Checking once_cell v1.10.0
[INFO] [stderr]    Compiling anyhow v1.0.57
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]     Checking clap_lex v0.2.0
[INFO] [stderr]     Checking signal-hook-mio v0.2.3
[INFO] [stderr]     Checking parking_lot v0.12.0
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking inotify v0.7.1
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking filetime v0.2.16
[INFO] [stderr]     Checking tracing-log v0.1.3
[INFO] [stderr]     Checking sharded-slab v0.1.4
[INFO] [stderr]     Checking fastrand v1.7.0
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking notify v4.0.17
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking crossterm v0.23.2
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]     Checking tracing-subscriber v0.3.11
[INFO] [stderr]     Checking globset v0.4.8
[INFO] [stderr]     Checking rust-embed-utils v7.2.0
[INFO] [stderr]     Checking addr2line v0.17.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling tracing-attributes v0.1.21
[INFO] [stderr]    Compiling rust-embed-impl v6.2.0
[INFO] [stderr]    Compiling clap_derive v3.1.7
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking rust-embed v6.4.0
[INFO] [stderr]     Checking tracing v0.1.34
[INFO] [stderr]     Checking clap v3.1.15
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking toml v0.5.9
[INFO] [stderr]     Checking otarustlings v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 33.23s
[INFO] running `Command { std: "docker" "inspect" "81308200e2f1a358fc4c19bc3b48d6a19e87a4ea2b30c6472d0e6e008deafeb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81308200e2f1a358fc4c19bc3b48d6a19e87a4ea2b30c6472d0e6e008deafeb7", kill_on_drop: false }`
[INFO] [stdout] 81308200e2f1a358fc4c19bc3b48d6a19e87a4ea2b30c6472d0e6e008deafeb7
[INFO] checking otarustlings-1.0.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate otarustlings 1.0.0 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate otarustlings 1.0.0 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 otarustlings 1.0.0
[INFO] finished tweaking crates.io crate otarustlings 1.0.0
[INFO] tweaked toml for crates.io crate otarustlings 1.0.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate crates.io crate otarustlings 1.0.0 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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 70896bfba398f56639aa84042a3cb1e671bfbc2aab0f5179d942ff4376474220
[INFO] running `Command { std: "docker" "start" "-a" "70896bfba398f56639aa84042a3cb1e671bfbc2aab0f5179d942ff4376474220", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "70896bfba398f56639aa84042a3cb1e671bfbc2aab0f5179d942ff4376474220", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70896bfba398f56639aa84042a3cb1e671bfbc2aab0f5179d942ff4376474220", kill_on_drop: false }`
[INFO] [stdout] 70896bfba398f56639aa84042a3cb1e671bfbc2aab0f5179d942ff4376474220
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 413b4cf1c1b22b7f7823b8a9c1787f332601e13fe586e9d221df61c9a237a692
[INFO] running `Command { std: "docker" "start" "-a" "413b4cf1c1b22b7f7823b8a9c1787f332601e13fe586e9d221df61c9a237a692", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.124
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling signal-hook v0.3.13
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling opaque-debug v0.3.0
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling cpufeatures v0.2.2
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]     Checking tracing-core v0.1.26
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling indexmap v1.8.1
[INFO] [stderr]     Checking slab v0.4.6
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking gimli v0.26.1
[INFO] [stderr]     Checking miniz_oxide v0.5.1
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling bstr v0.2.17
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking object v0.28.3
[INFO] [stderr]    Compiling anyhow v1.0.57
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]     Checking once_cell v1.10.0
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]     Checking clap_lex v0.2.0
[INFO] [stderr]     Checking regex v1.5.5
[INFO] [stderr]     Checking tracing-log v0.1.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]     Checking sharded-slab v0.1.4
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking fastrand v1.7.0
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling backtrace v0.3.65
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking inotify-sys v0.1.5
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking mio v0.8.2
[INFO] [stderr]     Checking inotify v0.7.1
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]     Checking filetime v0.2.16
[INFO] [stderr]     Checking parking_lot v0.12.0
[INFO] [stderr]     Checking globset v0.4.8
[INFO] [stderr]    Compiling sha2 v0.9.9
[INFO] [stderr]     Checking tracing-subscriber v0.3.11
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking signal-hook-mio v0.2.3
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]     Checking crossterm v0.23.2
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking rust-embed-utils v7.2.0
[INFO] [stderr]     Checking notify v4.0.17
[INFO] [stderr]     Checking addr2line v0.17.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling rust-embed-impl v6.2.0
[INFO] [stderr]    Compiling clap_derive v3.1.7
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling tracing-attributes v0.1.21
[INFO] [stderr]     Checking rust-embed v6.4.0
[INFO] [stderr]     Checking tracing v0.1.34
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking clap v3.1.15
[INFO] [stderr]     Checking toml v0.5.9
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking otarustlings v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 24.96s
[INFO] running `Command { std: "docker" "inspect" "413b4cf1c1b22b7f7823b8a9c1787f332601e13fe586e9d221df61c9a237a692", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "413b4cf1c1b22b7f7823b8a9c1787f332601e13fe586e9d221df61c9a237a692", kill_on_drop: false }`
[INFO] [stdout] 413b4cf1c1b22b7f7823b8a9c1787f332601e13fe586e9d221df61c9a237a692