[INFO] cloning repository https://github.com/Wolframfriele/zamboni
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Wolframfriele/zamboni" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWolframfriele%2Fzamboni", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWolframfriele%2Fzamboni'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6c78f4096683a16bbcb71f4bba6bcdd38c1dcb73
[INFO] checking Wolframfriele/zamboni against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWolframfriele%2Fzamboni" "/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/Wolframfriele/zamboni 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/Wolframfriele/zamboni
[INFO] finished tweaking git repo https://github.com/Wolframfriele/zamboni
[INFO] tweaked toml for git repo https://github.com/Wolframfriele/zamboni written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Wolframfriele/zamboni 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] 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] 633c09abb5d588bfc9edbfd28ad0dbb0e8104c75bb72c98b48a8f6520b893ec0
[INFO] running `Command { std: "docker" "start" "-a" "633c09abb5d588bfc9edbfd28ad0dbb0e8104c75bb72c98b48a8f6520b893ec0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "633c09abb5d588bfc9edbfd28ad0dbb0e8104c75bb72c98b48a8f6520b893ec0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "633c09abb5d588bfc9edbfd28ad0dbb0e8104c75bb72c98b48a8f6520b893ec0", kill_on_drop: false }`
[INFO] [stdout] 633c09abb5d588bfc9edbfd28ad0dbb0e8104c75bb72c98b48a8f6520b893ec0
[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] 554b5ec9112da5701f5f3cd4d046b0348eede391bfef83322171eaf13080f474
[INFO] running `Command { std: "docker" "start" "-a" "554b5ec9112da5701f5f3cd4d046b0348eede391bfef83322171eaf13080f474", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]    Compiling signal-hook v0.3.17
[INFO] [stderr]     Checking bitflags v2.4.2
[INFO] [stderr]     Checking mio v0.8.10
[INFO] [stderr]     Checking signal-hook-mio v0.2.3
[INFO] [stderr]     Checking aho-corasick v1.1.2
[INFO] [stderr]     Checking crossterm v0.27.0
[INFO] [stderr]     Checking regex-automata v0.4.5
[INFO] [stderr]     Checking regex v1.10.3
[INFO] [stderr]     Checking Inflector v0.11.4
[INFO] [stderr]     Checking zamboni v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.87s
[INFO] running `Command { std: "docker" "inspect" "554b5ec9112da5701f5f3cd4d046b0348eede391bfef83322171eaf13080f474", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "554b5ec9112da5701f5f3cd4d046b0348eede391bfef83322171eaf13080f474", kill_on_drop: false }`
[INFO] [stdout] 554b5ec9112da5701f5f3cd4d046b0348eede391bfef83322171eaf13080f474
[INFO] checking Wolframfriele/zamboni against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWolframfriele%2Fzamboni" "/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/Wolframfriele/zamboni 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/Wolframfriele/zamboni
[INFO] finished tweaking git repo https://github.com/Wolframfriele/zamboni
[INFO] tweaked toml for git repo https://github.com/Wolframfriele/zamboni written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Wolframfriele/zamboni 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]     Blocking waiting for file lock on package cache
[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] b3c6b5fe52af55a14f1fcf4512784b7aed16946d07395209a8d4bdd79c6937fc
[INFO] running `Command { std: "docker" "start" "-a" "b3c6b5fe52af55a14f1fcf4512784b7aed16946d07395209a8d4bdd79c6937fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b3c6b5fe52af55a14f1fcf4512784b7aed16946d07395209a8d4bdd79c6937fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3c6b5fe52af55a14f1fcf4512784b7aed16946d07395209a8d4bdd79c6937fc", kill_on_drop: false }`
[INFO] [stdout] b3c6b5fe52af55a14f1fcf4512784b7aed16946d07395209a8d4bdd79c6937fc
[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] 10a4e6de8fa31818d0c867dabcc700b9fd89a3889f0fc8bb2028fb720c856123
[INFO] running `Command { std: "docker" "start" "-a" "10a4e6de8fa31818d0c867dabcc700b9fd89a3889f0fc8bb2028fb720c856123", kill_on_drop: false }`
[INFO] [stderr]    Compiling signal-hook v0.3.17
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]     Checking bitflags v2.4.2
[INFO] [stderr]     Checking mio v0.8.10
[INFO] [stderr]     Checking signal-hook-mio v0.2.3
[INFO] [stderr]     Checking crossterm v0.27.0
[INFO] [stderr]     Checking aho-corasick v1.1.2
[INFO] [stderr]     Checking regex-automata v0.4.5
[INFO] [stderr]     Checking regex v1.10.3
[INFO] [stderr]     Checking Inflector v0.11.4
[INFO] [stderr]     Checking zamboni v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.14s
[INFO] running `Command { std: "docker" "inspect" "10a4e6de8fa31818d0c867dabcc700b9fd89a3889f0fc8bb2028fb720c856123", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10a4e6de8fa31818d0c867dabcc700b9fd89a3889f0fc8bb2028fb720c856123", kill_on_drop: false }`
[INFO] [stdout] 10a4e6de8fa31818d0c867dabcc700b9fd89a3889f0fc8bb2028fb720c856123