[INFO] fetching crate fresco 0.1.0...
[INFO] checking fresco-0.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate fresco 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate fresco 0.1.0 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 fresco 0.1.0
[INFO] finished tweaking crates.io crate fresco 0.1.0
[INFO] tweaked toml for crates.io crate fresco 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate fresco 0.1.0 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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded inotify-sys v0.1.5
[INFO] [stderr]   Downloaded line-wrap v0.1.1
[INFO] [stderr]   Downloaded inotify v0.9.6
[INFO] [stderr]   Downloaded kqueue-sys v1.0.3
[INFO] [stderr]   Downloaded fsevent-sys v4.1.0
[INFO] [stderr]   Downloaded kqueue v1.0.6
[INFO] [stderr]   Downloaded notify v5.0.0
[INFO] [stderr]   Downloaded os_str_bytes v6.3.0
[INFO] [stderr]   Downloaded embed_plist v1.2.2
[INFO] [stderr]   Downloaded clap_derive v3.2.18
[INFO] [stderr]   Downloaded os_pipe v0.9.2
[INFO] [stderr]   Downloaded clap v3.2.20
[INFO] [stderr]   Downloaded shared_child v0.3.5
[INFO] [stderr]   Downloaded duct v0.13.5
[INFO] [stderr]   Downloaded filetime v0.2.17
[INFO] [stderr]   Downloaded xml-rs v0.8.4
[INFO] [stderr]   Downloaded plist v1.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 73d0a47cd910bbee198c123c3343540b2fd2c461c3a301e6ea893b81db6a718b
[INFO] running `Command { std: "docker" "start" "-a" "73d0a47cd910bbee198c123c3343540b2fd2c461c3a301e6ea893b81db6a718b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "73d0a47cd910bbee198c123c3343540b2fd2c461c3a301e6ea893b81db6a718b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73d0a47cd910bbee198c123c3343540b2fd2c461c3a301e6ea893b81db6a718b", kill_on_drop: false }`
[INFO] [stdout] 73d0a47cd910bbee198c123c3343540b2fd2c461c3a301e6ea893b81db6a718b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] cf3bfdce8bc7d9286170d79aa697e7542fe63238a9f382bc304cc3f49f2d7f0f
[INFO] running `Command { std: "docker" "start" "-a" "cf3bfdce8bc7d9286170d79aa697e7542fe63238a9f382bc304cc3f49f2d7f0f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]     Checking once_cell v1.14.0
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.11
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]    Compiling serde v1.0.144
[INFO] [stderr]     Checking os_str_bytes v6.3.0
[INFO] [stderr]     Checking num_threads v0.1.6
[INFO] [stderr]     Checking itoa v1.0.3
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking line-wrap v0.1.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.6
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking xml-rs v0.8.4
[INFO] [stderr]     Checking embed_plist v1.2.2
[INFO] [stderr]     Checking inotify-sys v0.1.5
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking filetime v0.2.17
[INFO] [stderr]     Checking mio v0.8.4
[INFO] [stderr]     Checking os_pipe v0.9.2
[INFO] [stderr]     Checking time v0.3.14
[INFO] [stderr]     Checking inotify v0.9.6
[INFO] [stderr]     Checking shared_child v0.3.5
[INFO] [stderr]     Checking duct v0.13.5
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking notify v5.0.0
[INFO] [stderr]     Checking plist v1.3.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling clap_derive v3.2.18
[INFO] [stderr]     Checking clap v3.2.20
[INFO] [stderr]     Checking fresco v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.87s
[INFO] running `Command { std: "docker" "inspect" "cf3bfdce8bc7d9286170d79aa697e7542fe63238a9f382bc304cc3f49f2d7f0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf3bfdce8bc7d9286170d79aa697e7542fe63238a9f382bc304cc3f49f2d7f0f", kill_on_drop: false }`
[INFO] [stdout] cf3bfdce8bc7d9286170d79aa697e7542fe63238a9f382bc304cc3f49f2d7f0f
[INFO] checking fresco-0.1.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate fresco 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate fresco 0.1.0 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 fresco 0.1.0
[INFO] finished tweaking crates.io crate fresco 0.1.0
[INFO] tweaked toml for crates.io crate fresco 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate fresco 0.1.0 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 43d128fb2d9f2093565d06471c652c528ef243af6c1110ab8c5bc04973446e9b
[INFO] running `Command { std: "docker" "start" "-a" "43d128fb2d9f2093565d06471c652c528ef243af6c1110ab8c5bc04973446e9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "43d128fb2d9f2093565d06471c652c528ef243af6c1110ab8c5bc04973446e9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43d128fb2d9f2093565d06471c652c528ef243af6c1110ab8c5bc04973446e9b", kill_on_drop: false }`
[INFO] [stdout] 43d128fb2d9f2093565d06471c652c528ef243af6c1110ab8c5bc04973446e9b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 9ca6eef6e207c110b4d2cd2b91c6ae9ff64b02ed9cb1d3cf7a2c695dde86c388
[INFO] running `Command { std: "docker" "start" "-a" "9ca6eef6e207c110b4d2cd2b91c6ae9ff64b02ed9cb1d3cf7a2c695dde86c388", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]     Checking once_cell v1.14.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling crossbeam-utils v0.8.11
[INFO] [stderr]    Compiling serde v1.0.144
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking os_str_bytes v6.3.0
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking itoa v1.0.3
[INFO] [stderr]     Checking num_threads v0.1.6
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking line-wrap v0.1.1
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking xml-rs v0.8.4
[INFO] [stderr]     Checking embed_plist v1.2.2
[INFO] [stderr]     Checking crossbeam-channel v0.5.6
[INFO] [stderr]     Checking inotify-sys v0.1.5
[INFO] [stderr]     Checking time v0.3.14
[INFO] [stderr]     Checking filetime v0.2.17
[INFO] [stderr]     Checking inotify v0.9.6
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking shared_child v0.3.5
[INFO] [stderr]     Checking os_pipe v0.9.2
[INFO] [stderr]     Checking mio v0.8.4
[INFO] [stderr]     Checking duct v0.13.5
[INFO] [stderr]     Checking notify v5.0.0
[INFO] [stderr]    Compiling clap_derive v3.2.18
[INFO] [stderr]     Checking plist v1.3.1
[INFO] [stderr]     Checking clap v3.2.20
[INFO] [stderr]     Checking fresco v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.97s
[INFO] running `Command { std: "docker" "inspect" "9ca6eef6e207c110b4d2cd2b91c6ae9ff64b02ed9cb1d3cf7a2c695dde86c388", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ca6eef6e207c110b4d2cd2b91c6ae9ff64b02ed9cb1d3cf7a2c695dde86c388", kill_on_drop: false }`
[INFO] [stdout] 9ca6eef6e207c110b4d2cd2b91c6ae9ff64b02ed9cb1d3cf7a2c695dde86c388