[INFO] fetching crate koto_toml 0.12.0...
[INFO] checking koto_toml-0.12.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate koto_toml 0.12.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate koto_toml 0.12.0 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 koto_toml 0.12.0
[INFO] finished tweaking crates.io crate koto_toml 0.12.0
[INFO] tweaked toml for crates.io crate koto_toml 0.12.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 59 packages
[INFO] [stderr]       Adding hashbrown v0.12.3 (latest: v0.14.3)
[INFO] [stderr]       Adding indexmap v1.9.3 (latest: v2.2.6)
[INFO] [stderr]       Adding koto_bytecode v0.12.0 (latest: v0.13.0)
[INFO] [stderr]       Adding koto_lexer v0.12.0 (latest: v0.13.0)
[INFO] [stderr]       Adding koto_memory v0.12.0 (latest: v0.13.0)
[INFO] [stderr]       Adding koto_parser v0.12.0 (latest: v0.13.0)
[INFO] [stderr]       Adding koto_runtime v0.12.0 (latest: v0.13.0)
[INFO] [stderr]       Adding koto_serialize v0.12.0 (latest: v0.13.0)
[INFO] [stderr]       Adding toml v0.5.11 (latest: v0.8.12)
[INFO] [stderr]       Adding windows-core v0.52.0 (latest: v0.55.0)
[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 koto_memory v0.12.0
[INFO] [stderr]   Downloaded koto_bytecode v0.12.0
[INFO] [stderr]   Downloaded koto_lexer v0.12.0
[INFO] [stderr]   Downloaded koto_serialize v0.12.0
[INFO] [stderr]   Downloaded koto_parser v0.12.0
[INFO] [stderr]   Downloaded koto_runtime v0.12.0
[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] 7b535219904779848021949b3b5af372ef79bf566bd34b155a9e5ad935d30e38
[INFO] running `Command { std: "docker" "start" "-a" "7b535219904779848021949b3b5af372ef79bf566bd34b155a9e5ad935d30e38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b535219904779848021949b3b5af372ef79bf566bd34b155a9e5ad935d30e38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b535219904779848021949b3b5af372ef79bf566bd34b155a9e5ad935d30e38", kill_on_drop: false }`
[INFO] [stdout] 7b535219904779848021949b3b5af372ef79bf566bd34b155a9e5ad935d30e38
[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] ca86dbe8002cf197b64389330aa082c4cdd597718c59858dbee0bc9fb135f872
[INFO] running `Command { std: "docker" "start" "-a" "ca86dbe8002cf197b64389330aa082c4cdd597718c59858dbee0bc9fb135f872", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking unicode-xid v0.2.4
[INFO] [stderr]     Checking unicode-width v0.1.11
[INFO] [stderr]     Checking koto_memory v0.12.0
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking dunce v1.0.4
[INFO] [stderr]     Checking iana-time-zone v0.1.60
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]     Checking unicode-segmentation v1.11.0
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking koto_lexer v0.12.0
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking chrono v0.4.37
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]     Checking toml v0.5.11
[INFO] [stderr]     Checking thiserror v1.0.58
[INFO] [stderr]     Checking koto_parser v0.12.0
[INFO] [stderr]     Checking koto_bytecode v0.12.0
[INFO] [stderr]     Checking koto_runtime v0.12.0
[INFO] [stderr]     Checking koto_serialize v0.12.0
[INFO] [stderr]     Checking koto_toml v0.12.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.43s
[INFO] running `Command { std: "docker" "inspect" "ca86dbe8002cf197b64389330aa082c4cdd597718c59858dbee0bc9fb135f872", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca86dbe8002cf197b64389330aa082c4cdd597718c59858dbee0bc9fb135f872", kill_on_drop: false }`
[INFO] [stdout] ca86dbe8002cf197b64389330aa082c4cdd597718c59858dbee0bc9fb135f872
[INFO] checking koto_toml-0.12.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate koto_toml 0.12.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate koto_toml 0.12.0 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 koto_toml 0.12.0
[INFO] finished tweaking crates.io crate koto_toml 0.12.0
[INFO] tweaked toml for crates.io crate koto_toml 0.12.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 59 packages
[INFO] [stderr]       Adding hashbrown v0.12.3 (latest: v0.14.3)
[INFO] [stderr]       Adding indexmap v1.9.3 (latest: v2.2.6)
[INFO] [stderr]       Adding koto_bytecode v0.12.0 (latest: v0.13.0)
[INFO] [stderr]       Adding koto_lexer v0.12.0 (latest: v0.13.0)
[INFO] [stderr]       Adding koto_memory v0.12.0 (latest: v0.13.0)
[INFO] [stderr]       Adding koto_parser v0.12.0 (latest: v0.13.0)
[INFO] [stderr]       Adding koto_runtime v0.12.0 (latest: v0.13.0)
[INFO] [stderr]       Adding koto_serialize v0.12.0 (latest: v0.13.0)
[INFO] [stderr]       Adding toml v0.5.11 (latest: v0.8.12)
[INFO] [stderr]       Adding windows-core v0.52.0 (latest: v0.55.0)
[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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 7095b8c34fccfd84258d0a8f324bc5a9210871134592b0d6de0d139c398bb510
[INFO] running `Command { std: "docker" "start" "-a" "7095b8c34fccfd84258d0a8f324bc5a9210871134592b0d6de0d139c398bb510", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7095b8c34fccfd84258d0a8f324bc5a9210871134592b0d6de0d139c398bb510", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7095b8c34fccfd84258d0a8f324bc5a9210871134592b0d6de0d139c398bb510", kill_on_drop: false }`
[INFO] [stdout] 7095b8c34fccfd84258d0a8f324bc5a9210871134592b0d6de0d139c398bb510
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 7d83e50f35ee5705c027d13428f9fb06fef59f6e399f4d8b0ec296f3f29c66b1
[INFO] running `Command { std: "docker" "start" "-a" "7d83e50f35ee5705c027d13428f9fb06fef59f6e399f4d8b0ec296f3f29c66b1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking unicode-width v0.1.11
[INFO] [stderr]     Checking unicode-xid v0.2.4
[INFO] [stderr]     Checking koto_memory v0.12.0
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]     Checking dunce v1.0.4
[INFO] [stderr]     Checking iana-time-zone v0.1.60
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]     Checking unicode-segmentation v1.11.0
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking koto_lexer v0.12.0
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking chrono v0.4.37
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking toml v0.5.11
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]     Checking thiserror v1.0.58
[INFO] [stderr]     Checking koto_parser v0.12.0
[INFO] [stderr]     Checking koto_bytecode v0.12.0
[INFO] [stderr]     Checking koto_runtime v0.12.0
[INFO] [stderr]     Checking koto_serialize v0.12.0
[INFO] [stderr]     Checking koto_toml v0.12.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.78s
[INFO] running `Command { std: "docker" "inspect" "7d83e50f35ee5705c027d13428f9fb06fef59f6e399f4d8b0ec296f3f29c66b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d83e50f35ee5705c027d13428f9fb06fef59f6e399f4d8b0ec296f3f29c66b1", kill_on_drop: false }`
[INFO] [stdout] 7d83e50f35ee5705c027d13428f9fb06fef59f6e399f4d8b0ec296f3f29c66b1