[INFO] cloning repository https://github.com/IMXEren/competition-groups
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/IMXEren/competition-groups" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIMXEren%2Fcompetition-groups", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIMXEren%2Fcompetition-groups'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fc271580111f4d25e33a893dd1ce31185e2d9a01
[INFO] checking IMXEren/competition-groups against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIMXEren%2Fcompetition-groups" "/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/IMXEren/competition-groups 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/IMXEren/competition-groups
[INFO] finished tweaking git repo https://github.com/IMXEren/competition-groups
[INFO] tweaked toml for git repo https://github.com/IMXEren/competition-groups written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/IMXEren/competition-groups 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Updating git repository `https://github.com/stevepryde/thirtyfour`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 2 packages
[INFO] [stderr]       Adding thirtyfour v0.32.0-rc.10 (https://github.com/stevepryde/thirtyfour?rev=231ab54#231ab546)
[INFO] [stderr]       Adding thirtyfour-macros v0.1.1 (https://github.com/stevepryde/thirtyfour?rev=231ab54#231ab546)
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded stringmatch v0.4.0
[INFO] [stderr]   Downloaded port-selector v0.1.6
[INFO] [stderr]   Downloaded hermit-abi v0.3.8
[INFO] [stderr]   Downloaded syn v2.0.51
[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] c310c66309be213eadd9c4b0c76214a6fa932fee86f9561fca40231488832d7d
[INFO] running `Command { std: "docker" "start" "-a" "c310c66309be213eadd9c4b0c76214a6fa932fee86f9561fca40231488832d7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c310c66309be213eadd9c4b0c76214a6fa932fee86f9561fca40231488832d7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c310c66309be213eadd9c4b0c76214a6fa932fee86f9561fca40231488832d7d", kill_on_drop: false }`
[INFO] [stdout] c310c66309be213eadd9c4b0c76214a6fa932fee86f9561fca40231488832d7d
[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] 1df5225db8a724abaed41b8b1a78b15fc857c7232fdf25e5e230e4bd2d4416d3
[INFO] running `Command { std: "docker" "start" "-a" "1df5225db8a724abaed41b8b1a78b15fc857c7232fdf25e5e230e4bd2d4416d3", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.88
[INFO] [stderr]    Compiling pkg-config v0.3.30
[INFO] [stderr]    Compiling vcpkg v0.2.15
[INFO] [stderr]     Checking untrusted v0.9.0
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking indexmap v2.2.3
[INFO] [stderr]    Compiling openssl v0.10.64
[INFO] [stderr]    Compiling rustls v0.21.10
[INFO] [stderr]    Compiling syn v2.0.51
[INFO] [stderr]     Checking mio v0.8.10
[INFO] [stderr]     Checking try-lock v0.2.5
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking http-body v0.4.6
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking httpdate v1.0.3
[INFO] [stderr]     Checking unicode-normalization v0.1.23
[INFO] [stderr]    Compiling serde_json v1.0.114
[INFO] [stderr]     Checking want v0.3.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling thiserror v1.0.57
[INFO] [stderr]     Checking rustls-pemfile v1.0.4
[INFO] [stderr]     Checking encoding_rs v0.8.33
[INFO] [stderr]     Checking ipnet v2.9.0
[INFO] [stderr]     Checking webpki-roots v0.25.4
[INFO] [stderr]     Checking sync_wrapper v0.1.2
[INFO] [stderr]    Compiling anyhow v1.0.80
[INFO] [stderr]     Checking stringmatch v0.4.0
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking port-selector v0.1.6
[INFO] [stderr]     Checking idna v0.5.0
[INFO] [stderr]     Checking url v2.5.0
[INFO] [stderr]    Compiling ring v0.17.8
[INFO] [stderr]    Compiling openssl-sys v0.9.101
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling strum_macros v0.25.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.57
[INFO] [stderr]    Compiling serde_repr v0.1.18
[INFO] [stderr]    Compiling async-trait v0.1.77
[INFO] [stderr]    Compiling thirtyfour-macros v0.1.1 (https://github.com/stevepryde/thirtyfour?rev=231ab54#231ab546)
[INFO] [stderr]     Checking tokio v1.36.0
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking rustls-webpki v0.101.7
[INFO] [stderr]     Checking sct v0.7.1
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking strum v0.25.0
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking tokio-util v0.7.10
[INFO] [stderr]     Checking tokio-rustls v0.24.1
[INFO] [stderr]     Checking tokio-native-tls v0.3.1
[INFO] [stderr]     Checking h2 v0.3.24
[INFO] [stderr]     Checking hyper v0.14.28
[INFO] [stderr]     Checking hyper-rustls v0.24.2
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.24
[INFO] [stderr]     Checking thirtyfour v0.32.0-rc.10 (https://github.com/stevepryde/thirtyfour?rev=231ab54#231ab546)
[INFO] [stderr]     Checking competitions v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 34.05s
[INFO] running `Command { std: "docker" "inspect" "1df5225db8a724abaed41b8b1a78b15fc857c7232fdf25e5e230e4bd2d4416d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1df5225db8a724abaed41b8b1a78b15fc857c7232fdf25e5e230e4bd2d4416d3", kill_on_drop: false }`
[INFO] [stdout] 1df5225db8a724abaed41b8b1a78b15fc857c7232fdf25e5e230e4bd2d4416d3
[INFO] checking IMXEren/competition-groups against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIMXEren%2Fcompetition-groups" "/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/IMXEren/competition-groups 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/IMXEren/competition-groups
[INFO] finished tweaking git repo https://github.com/IMXEren/competition-groups
[INFO] tweaked toml for git repo https://github.com/IMXEren/competition-groups written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/IMXEren/competition-groups 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/stevepryde/thirtyfour`
[INFO] [stderr]      Locking 2 packages
[INFO] [stderr]       Adding thirtyfour v0.32.0-rc.10 (https://github.com/stevepryde/thirtyfour?rev=231ab54#231ab546)
[INFO] [stderr]       Adding thirtyfour-macros v0.1.1 (https://github.com/stevepryde/thirtyfour?rev=231ab54#231ab546)
[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] 260ffddf52fea6cd373b3f8acebaa71241e6882813b8f55c81c3e22ee725b3fd
[INFO] running `Command { std: "docker" "start" "-a" "260ffddf52fea6cd373b3f8acebaa71241e6882813b8f55c81c3e22ee725b3fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "260ffddf52fea6cd373b3f8acebaa71241e6882813b8f55c81c3e22ee725b3fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "260ffddf52fea6cd373b3f8acebaa71241e6882813b8f55c81c3e22ee725b3fd", kill_on_drop: false }`
[INFO] [stdout] 260ffddf52fea6cd373b3f8acebaa71241e6882813b8f55c81c3e22ee725b3fd
[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] 1f517cda6b14445a21d3d10dcb3efacf85bef28835ca37a471054788f2a036ce
[INFO] running `Command { std: "docker" "start" "-a" "1f517cda6b14445a21d3d10dcb3efacf85bef28835ca37a471054788f2a036ce", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.88
[INFO] [stderr]    Compiling pkg-config v0.3.30
[INFO] [stderr]    Compiling vcpkg v0.2.15
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking untrusted v0.9.0
[INFO] [stderr]    Compiling openssl v0.10.64
[INFO] [stderr]     Checking try-lock v0.2.5
[INFO] [stderr]    Compiling syn v2.0.51
[INFO] [stderr]     Checking mio v0.8.10
[INFO] [stderr]     Checking indexmap v2.2.3
[INFO] [stderr]    Compiling rustls v0.21.10
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking http-body v0.4.6
[INFO] [stderr]     Checking httpdate v1.0.3
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking unicode-normalization v0.1.23
[INFO] [stderr]     Checking want v0.3.1
[INFO] [stderr]    Compiling serde_json v1.0.114
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling thiserror v1.0.57
[INFO] [stderr]     Checking rustls-pemfile v1.0.4
[INFO] [stderr]     Checking encoding_rs v0.8.33
[INFO] [stderr]     Checking ipnet v2.9.0
[INFO] [stderr]     Checking sync_wrapper v0.1.2
[INFO] [stderr]    Compiling anyhow v1.0.80
[INFO] [stderr]     Checking webpki-roots v0.25.4
[INFO] [stderr]     Checking stringmatch v0.4.0
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking idna v0.5.0
[INFO] [stderr]     Checking port-selector v0.1.6
[INFO] [stderr]    Compiling ring v0.17.8
[INFO] [stderr]    Compiling openssl-sys v0.9.101
[INFO] [stderr]     Checking url v2.5.0
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling thiserror-impl v1.0.57
[INFO] [stderr]    Compiling strum_macros v0.25.3
[INFO] [stderr]    Compiling async-trait v0.1.77
[INFO] [stderr]    Compiling serde_repr v0.1.18
[INFO] [stderr]    Compiling thirtyfour-macros v0.1.1 (https://github.com/stevepryde/thirtyfour?rev=231ab54#231ab546)
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking tokio v1.36.0
[INFO] [stderr]     Checking rustls-webpki v0.101.7
[INFO] [stderr]     Checking sct v0.7.1
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking strum v0.25.0
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking tokio-util v0.7.10
[INFO] [stderr]     Checking tokio-rustls v0.24.1
[INFO] [stderr]     Checking tokio-native-tls v0.3.1
[INFO] [stderr]     Checking h2 v0.3.24
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking hyper v0.14.28
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking hyper-rustls v0.24.2
[INFO] [stderr]     Checking reqwest v0.11.24
[INFO] [stderr]     Checking thirtyfour v0.32.0-rc.10 (https://github.com/stevepryde/thirtyfour?rev=231ab54#231ab546)
[INFO] [stderr]     Checking competitions v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 39.32s
[INFO] running `Command { std: "docker" "inspect" "1f517cda6b14445a21d3d10dcb3efacf85bef28835ca37a471054788f2a036ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f517cda6b14445a21d3d10dcb3efacf85bef28835ca37a471054788f2a036ce", kill_on_drop: false }`
[INFO] [stdout] 1f517cda6b14445a21d3d10dcb3efacf85bef28835ca37a471054788f2a036ce