[INFO] cloning repository https://github.com/zseri/gardswag
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zseri/gardswag" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzseri%2Fgardswag", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzseri%2Fgardswag'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1558d259486c17de1e805888d64303c4c3f73743
[INFO] checking zseri/gardswag against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzseri%2Fgardswag" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zseri/gardswag 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/zseri/gardswag
[INFO] finished tweaking git repo https://github.com/zseri/gardswag
[INFO] tweaked toml for git repo https://github.com/zseri/gardswag written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/zseri/gardswag 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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded varstack v0.1.0
[INFO] [stderr]   Downloaded similar v2.2.1
[INFO] [stderr]   Downloaded proptest v1.2.0
[INFO] [stderr]   Downloaded insta v1.31.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 524a051d657f93d73a7e93cff0be31c291d6ea3e491bb16d8f02a98395846de7
[INFO] running `Command { std: "docker" "start" "-a" "524a051d657f93d73a7e93cff0be31c291d6ea3e491bb16d8f02a98395846de7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "524a051d657f93d73a7e93cff0be31c291d6ea3e491bb16d8f02a98395846de7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "524a051d657f93d73a7e93cff0be31c291d6ea3e491bb16d8f02a98395846de7", kill_on_drop: false }`
[INFO] [stdout] 524a051d657f93d73a7e93cff0be31c291d6ea3e491bb16d8f02a98395846de7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 19f81e090c1d28490919654d4628f5df91eeab1d626e3f50b0fc1bc6c99b7384
[INFO] running `Command { std: "docker" "start" "-a" "19f81e090c1d28490919654d4628f5df91eeab1d626e3f50b0fc1bc6c99b7384", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]     Checking varstack v0.1.0
[INFO] [stderr]    Compiling thiserror v1.0.48
[INFO] [stderr]     Checking tracing-core v0.1.31
[INFO] [stderr]     Checking regex-syntax v0.6.29
[INFO] [stderr]     Checking gardswag-subst v0.1.0 (/opt/rustwide/workdir/crates/gardswag-subst)
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]    Compiling libm v0.2.7
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]     Checking regex-syntax v0.7.5
[INFO] [stderr]     Checking anstream v0.5.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking clap_lex v0.5.1
[INFO] [stderr]     Checking hashbrown v0.14.0
[INFO] [stderr]    Compiling syn v2.0.31
[INFO] [stderr]    Compiling anyhow v1.0.75
[INFO] [stderr]     Checking clap_builder v4.4.2
[INFO] [stderr]     Checking tracing-log v0.1.3
[INFO] [stderr]     Checking sharded-slab v0.1.4
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking indexmap v2.0.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking rand_xorshift v0.3.0
[INFO] [stderr]     Checking console v0.15.7
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking unarray v0.1.4
[INFO] [stderr]     Checking similar v2.2.1
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking regex-automata v0.3.8
[INFO] [stderr]     Checking smallvec v1.11.0
[INFO] [stderr]     Checking unsafe-libyaml v0.2.9
[INFO] [stderr]     Checking matchers v0.1.0
[INFO] [stderr]     Checking proptest v1.2.0
[INFO] [stderr]     Checking regex v1.9.5
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]    Compiling thiserror-impl v1.0.48
[INFO] [stderr]    Compiling tracing-attributes v0.1.26
[INFO] [stderr]    Compiling clap_derive v4.4.2
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]     Checking tracing-subscriber v0.3.17
[INFO] [stderr]     Checking clap v4.4.2
[INFO] [stderr]     Checking gardswag-interner v0.1.0 (/opt/rustwide/workdir/crates/gardswag-interner)
[INFO] [stderr]     Checking gardswag-annotated v0.1.0 (/opt/rustwide/workdir/crates/gardswag-annotated)
[INFO] [stderr]     Checking serde_yaml v0.9.25
[INFO] [stderr]     Checking insta v1.31.0
[INFO] [stderr]     Checking gardswag-typesys v0.1.0 (/opt/rustwide/workdir/crates/gardswag-typesys)
[INFO] [stderr]     Checking gardswag-syntax v0.1.0 (/opt/rustwide/workdir/crates/gardswag-syntax)
[INFO] [stderr]     Checking gardswag-infer-cgen v0.1.0 (/opt/rustwide/workdir/crates/gardswag-infer-cgen)
[INFO] [stderr]     Checking gardswag v0.1.0 (/opt/rustwide/workdir/crates/gardswag)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 42.94s
[INFO] running `Command { std: "docker" "inspect" "19f81e090c1d28490919654d4628f5df91eeab1d626e3f50b0fc1bc6c99b7384", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19f81e090c1d28490919654d4628f5df91eeab1d626e3f50b0fc1bc6c99b7384", kill_on_drop: false }`
[INFO] [stdout] 19f81e090c1d28490919654d4628f5df91eeab1d626e3f50b0fc1bc6c99b7384
[INFO] checking zseri/gardswag against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzseri%2Fgardswag" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zseri/gardswag 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/zseri/gardswag
[INFO] finished tweaking git repo https://github.com/zseri/gardswag
[INFO] tweaked toml for git repo https://github.com/zseri/gardswag written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/zseri/gardswag 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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 42575feab2f3a46cc731b8f6daf4975fc6177f4df8bff2660541dfb0da74e587
[INFO] running `Command { std: "docker" "start" "-a" "42575feab2f3a46cc731b8f6daf4975fc6177f4df8bff2660541dfb0da74e587", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "42575feab2f3a46cc731b8f6daf4975fc6177f4df8bff2660541dfb0da74e587", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42575feab2f3a46cc731b8f6daf4975fc6177f4df8bff2660541dfb0da74e587", kill_on_drop: false }`
[INFO] [stdout] 42575feab2f3a46cc731b8f6daf4975fc6177f4df8bff2660541dfb0da74e587
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 1ee678c8f630195c2d4a28f45b5bab9e6b311ab63a1f70cda921ae4357bd4afc
[INFO] running `Command { std: "docker" "start" "-a" "1ee678c8f630195c2d4a28f45b5bab9e6b311ab63a1f70cda921ae4357bd4afc", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]     Checking varstack v0.1.0
[INFO] [stderr]    Compiling thiserror v1.0.48
[INFO] [stderr]     Checking tracing-core v0.1.31
[INFO] [stderr]     Checking regex-syntax v0.6.29
[INFO] [stderr]     Checking gardswag-subst v0.1.0 (/opt/rustwide/workdir/crates/gardswag-subst)
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]    Compiling libm v0.2.7
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]     Checking regex-syntax v0.7.5
[INFO] [stderr]     Checking anstream v0.5.0
[INFO] [stderr]     Checking clap_lex v0.5.1
[INFO] [stderr]     Checking hashbrown v0.14.0
[INFO] [stderr]    Compiling anyhow v1.0.75
[INFO] [stderr]     Checking tracing-log v0.1.3
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking clap_builder v4.4.2
[INFO] [stderr]    Compiling syn v2.0.31
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking indexmap v2.0.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking console v0.15.7
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand_xorshift v0.3.0
[INFO] [stderr]     Checking sharded-slab v0.1.4
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking regex-automata v0.3.8
[INFO] [stderr]     Checking unsafe-libyaml v0.2.9
[INFO] [stderr]     Checking similar v2.2.1
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking unarray v0.1.4
[INFO] [stderr]     Checking smallvec v1.11.0
[INFO] [stderr]     Checking proptest v1.2.0
[INFO] [stderr]     Checking matchers v0.1.0
[INFO] [stderr]     Checking regex v1.9.5
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]    Compiling thiserror-impl v1.0.48
[INFO] [stderr]    Compiling tracing-attributes v0.1.26
[INFO] [stderr]    Compiling clap_derive v4.4.2
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]     Checking tracing-subscriber v0.3.17
[INFO] [stderr]     Checking clap v4.4.2
[INFO] [stderr]     Checking gardswag-interner v0.1.0 (/opt/rustwide/workdir/crates/gardswag-interner)
[INFO] [stderr]     Checking gardswag-annotated v0.1.0 (/opt/rustwide/workdir/crates/gardswag-annotated)
[INFO] [stderr]     Checking insta v1.31.0
[INFO] [stderr]     Checking serde_yaml v0.9.25
[INFO] [stderr]     Checking gardswag-typesys v0.1.0 (/opt/rustwide/workdir/crates/gardswag-typesys)
[INFO] [stderr]     Checking gardswag-syntax v0.1.0 (/opt/rustwide/workdir/crates/gardswag-syntax)
[INFO] [stderr]     Checking gardswag-infer-cgen v0.1.0 (/opt/rustwide/workdir/crates/gardswag-infer-cgen)
[INFO] [stderr]     Checking gardswag v0.1.0 (/opt/rustwide/workdir/crates/gardswag)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 29.10s
[INFO] running `Command { std: "docker" "inspect" "1ee678c8f630195c2d4a28f45b5bab9e6b311ab63a1f70cda921ae4357bd4afc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ee678c8f630195c2d4a28f45b5bab9e6b311ab63a1f70cda921ae4357bd4afc", kill_on_drop: false }`
[INFO] [stdout] 1ee678c8f630195c2d4a28f45b5bab9e6b311ab63a1f70cda921ae4357bd4afc