[INFO] cloning repository https://github.com/daharon/y2R68tLZ [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/daharon/y2R68tLZ" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdaharon%2Fy2R68tLZ", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdaharon%2Fy2R68tLZ'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 75c12175736f0fe8bb8b3dcd2b757b953e8f41a5 [INFO] checking daharon/y2R68tLZ against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdaharon%2Fy2R68tLZ" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/daharon/y2R68tLZ 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/daharon/y2R68tLZ [INFO] finished tweaking git repo https://github.com/daharon/y2R68tLZ [INFO] tweaked toml for git repo https://github.com/daharon/y2R68tLZ written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/daharon/y2R68tLZ 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 syn v1.0.83 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] ee6c96587c624d073dc5969018d8b9ece0097c958a13c058cffa39cf563e5214 [INFO] running `Command { std: "docker" "start" "-a" "ee6c96587c624d073dc5969018d8b9ece0097c958a13c058cffa39cf563e5214", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ee6c96587c624d073dc5969018d8b9ece0097c958a13c058cffa39cf563e5214", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ee6c96587c624d073dc5969018d8b9ece0097c958a13c058cffa39cf563e5214", kill_on_drop: false }` [INFO] [stdout] ee6c96587c624d073dc5969018d8b9ece0097c958a13c058cffa39cf563e5214 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 83e6a8c15f6b015baf0dff5c01ee9db1d0b8bb364a05dc45335422f948c6396b [INFO] running `Command { std: "docker" "start" "-a" "83e6a8c15f6b015baf0dff5c01ee9db1d0b8bb364a05dc45335422f948c6396b", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.112 [INFO] [stderr] Compiling pkg-config v0.3.24 [INFO] [stderr] Compiling futures-core v0.3.19 [INFO] [stderr] Compiling futures-task v0.3.19 [INFO] [stderr] Compiling indexmap v1.7.0 [INFO] [stderr] Compiling memoffset v0.6.5 [INFO] [stderr] Compiling openssl v0.10.38 [INFO] [stderr] Compiling futures-util v0.3.19 [INFO] [stderr] Checking futures-sink v0.3.19 [INFO] [stderr] Compiling crossbeam-epoch v0.9.5 [INFO] [stderr] Checking once_cell v1.9.0 [INFO] [stderr] Checking futures-io v0.3.19 [INFO] [stderr] Compiling futures-channel v0.3.19 [INFO] [stderr] Compiling native-tls v0.2.8 [INFO] [stderr] Checking tracing v0.1.29 [INFO] [stderr] Checking openssl-probe v0.1.4 [INFO] [stderr] Compiling serde v1.0.132 [INFO] [stderr] Checking try-lock v0.2.3 [INFO] [stderr] Compiling rayon-core v1.9.1 [INFO] [stderr] Checking want v0.3.0 [INFO] [stderr] Checking http-body v0.4.4 [INFO] [stderr] Checking tower-service v0.3.1 [INFO] [stderr] Checking httpdate v1.0.2 [INFO] [stderr] Checking crossbeam-channel v0.5.1 [INFO] [stderr] Compiling rayon v1.5.1 [INFO] [stderr] Checking unicode-width v0.1.9 [INFO] [stderr] Checking ipnet v2.3.1 [INFO] [stderr] Checking ansi_term v0.12.1 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Compiling openssl-sys v0.9.72 [INFO] [stderr] Checking crossbeam-deque v0.8.1 [INFO] [stderr] Checking num_cpus v1.13.1 [INFO] [stderr] Checking mio v0.7.14 [INFO] [stderr] Checking socket2 v0.4.2 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Checking tokio v1.15.0 [INFO] [stderr] Checking serde_urlencoded v0.7.0 [INFO] [stderr] Checking tokio-util v0.6.9 [INFO] [stderr] Checking tokio-native-tls v0.3.0 [INFO] [stderr] Checking h2 v0.3.9 [INFO] [stderr] Checking hyper v0.14.16 [INFO] [stderr] Checking hyper-tls v0.5.0 [INFO] [stderr] Checking reqwest v0.11.8 [INFO] [stderr] Checking phash v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.88s [INFO] running `Command { std: "docker" "inspect" "83e6a8c15f6b015baf0dff5c01ee9db1d0b8bb364a05dc45335422f948c6396b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "83e6a8c15f6b015baf0dff5c01ee9db1d0b8bb364a05dc45335422f948c6396b", kill_on_drop: false }` [INFO] [stdout] 83e6a8c15f6b015baf0dff5c01ee9db1d0b8bb364a05dc45335422f948c6396b [INFO] checking daharon/y2R68tLZ against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdaharon%2Fy2R68tLZ" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/daharon/y2R68tLZ 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/daharon/y2R68tLZ [INFO] finished tweaking git repo https://github.com/daharon/y2R68tLZ [INFO] tweaked toml for git repo https://github.com/daharon/y2R68tLZ written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/daharon/y2R68tLZ 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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 1c26fca4e4885153548f1f3ce0bdd005a65d4294691dede7022e65c4ea7a330d [INFO] running `Command { std: "docker" "start" "-a" "1c26fca4e4885153548f1f3ce0bdd005a65d4294691dede7022e65c4ea7a330d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1c26fca4e4885153548f1f3ce0bdd005a65d4294691dede7022e65c4ea7a330d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1c26fca4e4885153548f1f3ce0bdd005a65d4294691dede7022e65c4ea7a330d", kill_on_drop: false }` [INFO] [stdout] 1c26fca4e4885153548f1f3ce0bdd005a65d4294691dede7022e65c4ea7a330d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 9eb69f2ce6e432218ecc9e0bada03bd2b59da1c1d9d979e9c8c95a62075a04a5 [INFO] running `Command { std: "docker" "start" "-a" "9eb69f2ce6e432218ecc9e0bada03bd2b59da1c1d9d979e9c8c95a62075a04a5", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.112 [INFO] [stderr] Compiling pkg-config v0.3.24 [INFO] [stderr] Compiling futures-core v0.3.19 [INFO] [stderr] Compiling futures-task v0.3.19 [INFO] [stderr] Compiling memoffset v0.6.5 [INFO] [stderr] Compiling indexmap v1.7.0 [INFO] [stderr] Compiling openssl v0.10.38 [INFO] [stderr] Compiling futures-util v0.3.19 [INFO] [stderr] Checking once_cell v1.9.0 [INFO] [stderr] Compiling futures-channel v0.3.19 [INFO] [stderr] Checking futures-sink v0.3.19 [INFO] [stderr] Checking futures-io v0.3.19 [INFO] [stderr] Compiling native-tls v0.2.8 [INFO] [stderr] Compiling crossbeam-epoch v0.9.5 [INFO] [stderr] Checking tracing v0.1.29 [INFO] [stderr] Checking try-lock v0.2.3 [INFO] [stderr] Compiling rayon-core v1.9.1 [INFO] [stderr] Compiling serde v1.0.132 [INFO] [stderr] Checking openssl-probe v0.1.4 [INFO] [stderr] Checking want v0.3.0 [INFO] [stderr] Checking http-body v0.4.4 [INFO] [stderr] Checking tower-service v0.3.1 [INFO] [stderr] Checking httpdate v1.0.2 [INFO] [stderr] Checking crossbeam-channel v0.5.1 [INFO] [stderr] Compiling rayon v1.5.1 [INFO] [stderr] Checking unicode-width v0.1.9 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Checking ansi_term v0.12.1 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking ipnet v2.3.1 [INFO] [stderr] Compiling openssl-sys v0.9.72 [INFO] [stderr] Checking crossbeam-deque v0.8.1 [INFO] [stderr] Checking num_cpus v1.13.1 [INFO] [stderr] Checking mio v0.7.14 [INFO] [stderr] Checking socket2 v0.4.2 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Checking tokio v1.15.0 [INFO] [stderr] Checking serde_urlencoded v0.7.0 [INFO] [stderr] Checking tokio-util v0.6.9 [INFO] [stderr] Checking tokio-native-tls v0.3.0 [INFO] [stderr] Checking h2 v0.3.9 [INFO] [stderr] Checking hyper v0.14.16 [INFO] [stderr] Checking hyper-tls v0.5.0 [INFO] [stderr] Checking reqwest v0.11.8 [INFO] [stderr] Checking phash v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.76s [INFO] running `Command { std: "docker" "inspect" "9eb69f2ce6e432218ecc9e0bada03bd2b59da1c1d9d979e9c8c95a62075a04a5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9eb69f2ce6e432218ecc9e0bada03bd2b59da1c1d9d979e9c8c95a62075a04a5", kill_on_drop: false }` [INFO] [stdout] 9eb69f2ce6e432218ecc9e0bada03bd2b59da1c1d9d979e9c8c95a62075a04a5