[INFO] fetching crate trotter 0.6.0...
[INFO] checking trotter-0.6.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate trotter 0.6.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate trotter 0.6.0 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 trotter 0.6.0
[INFO] finished tweaking crates.io crate trotter 0.6.0
[INFO] tweaked toml for crates.io crate trotter 0.6.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate trotter 0.6.0 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 wildmatch v2.1.1
[INFO] [stderr]   Downloaded tokio-openssl v0.6.3
[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] b4946d807febf388b4e1940c0b72fe6952f28ee49a603c630e9d888615b14af5
[INFO] running `Command { std: "docker" "start" "-a" "b4946d807febf388b4e1940c0b72fe6952f28ee49a603c630e9d888615b14af5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b4946d807febf388b4e1940c0b72fe6952f28ee49a603c630e9d888615b14af5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4946d807febf388b4e1940c0b72fe6952f28ee49a603c630e9d888615b14af5", kill_on_drop: false }`
[INFO] [stdout] b4946d807febf388b4e1940c0b72fe6952f28ee49a603c630e9d888615b14af5
[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] ab5519758be4396c9f3c666ec198f00f2e2dbf956dc831a1bd1ef2d038f7bd5b
[INFO] running `Command { std: "docker" "start" "-a" "ab5519758be4396c9f3c666ec198f00f2e2dbf956dc831a1bd1ef2d038f7bd5b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]    Compiling futures-core v0.3.29
[INFO] [stderr]    Compiling futures-task v0.3.29
[INFO] [stderr]    Compiling openssl v0.10.59
[INFO] [stderr]    Compiling futures-util v0.3.29
[INFO] [stderr]    Compiling syn v2.0.39
[INFO] [stderr]     Checking utf8parse v0.2.1
[INFO] [stderr]     Checking anstyle-parse v0.2.2
[INFO] [stderr]     Checking anstyle-query v1.0.0
[INFO] [stderr]     Checking bitflags v2.4.1
[INFO] [stderr]     Checking colorchoice v1.0.0
[INFO] [stderr]     Checking percent-encoding v2.3.0
[INFO] [stderr]     Checking anstyle v1.0.4
[INFO] [stderr]    Compiling tokio-openssl v0.6.3
[INFO] [stderr]     Checking idna v0.4.0
[INFO] [stderr]     Checking form_urlencoded v1.2.0
[INFO] [stderr]    Compiling anyhow v1.0.75
[INFO] [stderr]     Checking anstream v0.6.4
[INFO] [stderr]     Checking clap_lex v0.6.0
[INFO] [stderr]     Checking urlencoding v2.1.3
[INFO] [stderr]     Checking wildmatch v2.1.1
[INFO] [stderr]     Checking clap_builder v4.4.8
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking url v2.4.1
[INFO] [stderr]    Compiling openssl-sys v0.9.95
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.50
[INFO] [stderr]    Compiling clap_derive v4.4.7
[INFO] [stderr]     Checking tokio v1.34.0
[INFO] [stderr]     Checking thiserror v1.0.50
[INFO] [stderr]     Checking clap v4.4.8
[INFO] [stderr]     Checking trotter v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 25.90s
[INFO] running `Command { std: "docker" "inspect" "ab5519758be4396c9f3c666ec198f00f2e2dbf956dc831a1bd1ef2d038f7bd5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab5519758be4396c9f3c666ec198f00f2e2dbf956dc831a1bd1ef2d038f7bd5b", kill_on_drop: false }`
[INFO] [stdout] ab5519758be4396c9f3c666ec198f00f2e2dbf956dc831a1bd1ef2d038f7bd5b
[INFO] checking trotter-0.6.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate trotter 0.6.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate trotter 0.6.0 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 trotter 0.6.0
[INFO] finished tweaking crates.io crate trotter 0.6.0
[INFO] tweaked toml for crates.io crate trotter 0.6.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate trotter 0.6.0 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-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] 812ac5641fa6105c7e30cfd7a9be3ccaae1bef0603d9191044fdb74f8b323386
[INFO] running `Command { std: "docker" "start" "-a" "812ac5641fa6105c7e30cfd7a9be3ccaae1bef0603d9191044fdb74f8b323386", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "812ac5641fa6105c7e30cfd7a9be3ccaae1bef0603d9191044fdb74f8b323386", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "812ac5641fa6105c7e30cfd7a9be3ccaae1bef0603d9191044fdb74f8b323386", kill_on_drop: false }`
[INFO] [stdout] 812ac5641fa6105c7e30cfd7a9be3ccaae1bef0603d9191044fdb74f8b323386
[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] 486e7e664cdfb4107c74be70adf3b52976eb20b102829aa15b9eeb986b8f3b0f
[INFO] running `Command { std: "docker" "start" "-a" "486e7e664cdfb4107c74be70adf3b52976eb20b102829aa15b9eeb986b8f3b0f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]    Compiling futures-task v0.3.29
[INFO] [stderr]    Compiling futures-core v0.3.29
[INFO] [stderr]     Checking utf8parse v0.2.1
[INFO] [stderr]    Compiling syn v2.0.39
[INFO] [stderr]    Compiling futures-util v0.3.29
[INFO] [stderr]    Compiling openssl v0.10.59
[INFO] [stderr]     Checking anstyle-parse v0.2.2
[INFO] [stderr]     Checking colorchoice v1.0.0
[INFO] [stderr]     Checking anstyle-query v1.0.0
[INFO] [stderr]    Compiling tokio-openssl v0.6.3
[INFO] [stderr]     Checking anstyle v1.0.4
[INFO] [stderr]     Checking bitflags v2.4.1
[INFO] [stderr]     Checking percent-encoding v2.3.0
[INFO] [stderr]     Checking anstream v0.6.4
[INFO] [stderr]     Checking idna v0.4.0
[INFO] [stderr]     Checking form_urlencoded v1.2.0
[INFO] [stderr]     Checking clap_lex v0.6.0
[INFO] [stderr]    Compiling anyhow v1.0.75
[INFO] [stderr]     Checking wildmatch v2.1.1
[INFO] [stderr]     Checking clap_builder v4.4.8
[INFO] [stderr]     Checking urlencoding v2.1.3
[INFO] [stderr]     Checking url v2.4.1
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling openssl-sys v0.9.95
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.50
[INFO] [stderr]    Compiling clap_derive v4.4.7
[INFO] [stderr]     Checking tokio v1.34.0
[INFO] [stderr]     Checking thiserror v1.0.50
[INFO] [stderr]     Checking clap v4.4.8
[INFO] [stderr]     Checking trotter v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.57s
[INFO] running `Command { std: "docker" "inspect" "486e7e664cdfb4107c74be70adf3b52976eb20b102829aa15b9eeb986b8f3b0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "486e7e664cdfb4107c74be70adf3b52976eb20b102829aa15b9eeb986b8f3b0f", kill_on_drop: false }`
[INFO] [stdout] 486e7e664cdfb4107c74be70adf3b52976eb20b102829aa15b9eeb986b8f3b0f